TIDMBIOG 
 
LONDON STOCK EXCHANGE ANNOUNCEMENT 
 
The Biotech Growth Trust PLC 
 
(the "Company") 
 
Unaudited Half Year Results For The Six Months Ended 30 September 2023 
 
This announcement is not the Company's Half Year Report. It is an abridged 
version of the Company's full Half Year Report for the six months ended 30 
September 2023. This announcement contains references to graphs and charts which 
appear in the full Half Year Report, which will shortly be available on the 
Company's website at www.biotechgt.com. Up to date information on the Company, 
including daily NAVs, share prices and monthly fact sheets, can also be found on 
the website. 
 
The Company's Half Year Report for the six months ended 30 September 2023 has 
been submitted to the Financial Conduct Authority, and will shortly be available 
for inspection on the National Storage Mechanism (NSM) at 
https://data.fca.org.uk/#/nsm/nationalstoragemechanism 
 
For further information please contact: Katherine Manson, Frostrow Capital LLP, 
020 3709 8734 
 
 
COMPANY PERFORMANCE 
 
KEY STATISTICS 
 
                                                As at         As at     % 
                                                30 September  31 March  Change 
                                                2023          2023 
Net asset value ("NAV") per share               817.9p        852.6p    (4.1) 
Share price                                     776.0p        783.0p    (0.9) 
Discount of share price to NAV per share^       5.1%          8.2% 
Nasdaq Biotechnology Index (sterling adjusted)  3,239.10      3,340.80  (3.0) 
Gearing^                                        3.1%          7.8% 
Ongoing Charges^                                1.1%          1.1% 
Active Share*^                                  68.1%         76.6% 
 
^Alternative Performance Measure (see Glossary) 
 
*Source: Morningstar 
 
CHAIRMAN'S STATEMENT 
 
INTRODUCTION AND RESULTS 
 
In the first six months of this financial year, the Company's NAV per share 
total return^ was -4.1%, underperforming the decline of 3.0% in the NASDAQ 
Biotechnology Index (the "NBI" or the "Benchmark"). The continuing difficult 
economic environment, rising cost of capital and associated investor caution all 
provided a challenging backdrop for a portfolio heavily weighted to small and 
mid sized biotechnology stocks. It is an environment which has persisted for 
some 18months and lies at the heart of the recent poor performance of our 
Company relative to the Benchmark against which we measure ourselves. 
 
The principal detractors from performance were Travere Therapeutics, uniQure and 
StemiRNA. Travere Therapeutics and uniQure both announced disappointing trial 
results during the period. StemiRNA, one of the Company's two remaining direct 
private investments, was written down by 74% at the period end, contributing 
1.3% to the decline in the Company's NAV, exceeding the total underperformance 
relative to the Benchmark in the period. The reasons for this substantial 
write-down are detailed in the Portfolio Manager's Review. The valuation was 
produced by Kroll (an independent third-party valuation agent) and then reviewed 
and agreed by both the AIFM's and the Company's Valuation Committees. The write 
down was reflected in the Company's daily NAV announcements immediately upon 
receipt of the updated valuation. 
 
The Company has not made any new "crossover" investments (investments in a 
company's last private funding round prior to an initial public offering 
("IPO")) in the period. Investments in China represented 9.2% of the portfolio 
as at the period end. The Portfolio Manager continues to believe in the high 
levels of innovation found in the biotechnology sector in China, but the 
difficult local macroeconomic and regulatory environments continue to deter 
further investment. 
 
In addition, the presence of gearing over the period detracted 0.3% from the 
Company's NAV performance. While the Portfolio Manager usually aims to keep 
gearing in the 5-10% range, given renewed interest rate pressure in the U.S., 
gearing was reduced from 7.8% to 3.1% over the period. 
 
Despite these setbacks, there were some positive developments in the portfolio. 
During the period, GSK announced their intention to acquire BELLUS Health at a 
100% premium to the share price at the time, and Novartis announced their 
intention to acquire Chinook Therapeutics at a 67% premium to the share price at 
the time. BELLUS Health and Chinook Therapeutics were the top two contributors 
during the period. Other positive contributors included Vera Therapeutics and 
Ionis Pharmaceuticals which both announced positive trial results during the 
period. 
 
The Company's NAV benefited from the depreciation in sterling over the period by 
1.3% against the U.S. dollar, being the currency in which the majority of the 
Company's investments are denominated. 
 
A fuller description of performance in the period is set out in the Portfolio 
Manager's Review. 
 
SHARE PRICE PERFORMANCE 
 
The discount^ of the share price to the NAV per share narrowed over the period: 
at 31 March 2023, the discount was 8.2% and at 30 September, 5.1%. This 
reduction in the discount meant that the share price return^ over the six months 
was -0.9% (2022: +10.7%). 
 
DISCOUNT MANAGEMENT 
 
The Company's shares traded at a discount to the NAV per share throughout the 
period. Shareholders will be aware that the Company pursues an active discount 
management policy, buying back shares when the discount of the Company's share 
price to the NAV per share is higher than 6%. Accordingly, during the period the 
Company bought back 2,861,502 shares at an average discount of 7.3% to the NAV 
per share, at a cost of £23.1m. 
 
At the period end there were 35,875,917 shares in issue and the share price 
traded at a 5.1% discount to the NAV per share. As we have previously commented, 
it remains possible for the share price discount to trade at a discount wider 
than 6% for a period of days or indeed longer, particularly in volatile markets 
and periods when investor risk appetites are muted. However, the Company remains 
committed to protecting a 6% share price discount over the longer term. Since 
the period end a further 575,440 shares have been bought back for cancellation 
and at the time of writing the share price discount stands at 6.7%. 
 
BOARD CHANGES 
 
On 9 October we announced the appointment of Hamish Baillie to the Board, 
effective 1 November. We are very pleased to have appointed a Director with such 
extensive experience and expertise both in managing an investment trust and as a 
non-executive director. Hamish has also been appointed to the Audit, Valuation, 
Management Engagement, and Nominations Committees. 
 
Hamish's appointment means that there will be seven directors on the Board for a 
short period. Steve Bates, our Senior Independent Director, intends to retire at 
the next Annual General Meeting at which point we will return to being a 
sixperson Board. 
 
PERFORMANCE FEE 
 
Due to the ongoing underperformance against the Benchmark, there is no provision 
within the Company's NAV for any performance fee payable at a future calculation 
date. 
 
As explained in more detail in the Annual Report, the performance fee is 
calculated quarterly and is dependent on the long-term outperformance of the 
Company. In addition, a performance fee only becomes payable if and when the 
Company's cumulative outperformance gives rise to a performance fee that exceeds 
the total of performance fees paid to date. This ensures that a performance fee 
is not payable for any outperformance that contributes to recovery of prior 
performance. 
 
OUTLOOK 
 
The future of the biotech sector is complex. On the one hand, current 
macroeconomic conditions remain extremely challenging. Volatile equity markets, 
rising interest rates and investor risk aversion all increase the cost of the 
capital the sector relies on to fund investment. However, confidence can be 
found in the exciting range and pace of innovation in the biotech sector. The 
pace of innovation is accelerating and there is a robust pipeline of therapies 
based on a wide variety of scientific and technological developments. The 
challenge of the forthcoming `patent cliff' faced by larger biopharmaceutical 
companies is an opportunity for the emerging biotech companies in which your 
Company is invested and we expect to see a further increase in merger and 
acquisition ("M&A") activity. 
 
The Board shares the Portfolio Manager's and, no doubt, shareholders' 
frustration with the length of time these catalysts are taking to materialise 
but remains confident that the investment strategy will yield good returns in 
the long term. 
 
Roger Yates 
 
Chairman 
 
9 November 2023 
 
^Alternative Performance Measure. See glossary. 
 
PORTFOLIO MANAGER'S REVIEW 
 
PERFORMANCE 
 
The Company's NAV per share declined 4.1% during the six-month period ended 30 
September 2023. This compares with a 3.0% decline in the Benchmark, the NASDAQ 
Biotechnology Index (measured on a sterling adjusted basis). 
 
Following a difficult fiscal year for the Company ending 31 March 2023, 
macroeconomic factors continued to dominate biotech sector performance during 
the review period. Long-term interest rates rose during the review period, which 
continued to pressure shares of unprofitable emerging biotech companies. The 
U.S. Federal Reserve (the "Fed") enacted two 0.25% increases in the Fed Funds 
rate in May and July and opted to leave rates unchanged at its June and 
September meetings, indicating a slowdown in the pace of interest rate hikes 
from the aggressive pace of increases over the previous nine meetings. Even so, 
10-year U.S. government yields increased from 3.47% to 4.57% during the review 
period, as shown in Figure 1 on page 5 of the Half Year Report. While inflation 
in the U.S. has been declining since its 9% peak in June 2022, the U.S. economy 
remains strong. This has given the Fed flexibility to leave interest rates 
higher for a longer duration of time in order to achieve its stated inflation 
target of 2%. We continue to believe that the Fed is in the final stages of 
raising interest rates and do not expect significant further rate hikes from 
this point forward. However, Fed messaging that rates may stay "higher for 
longer" has caused long-term interest rates to rise in the short term. 
 
When it became apparent in September that 10-year yields might continue to 
increase given the "higher for longer" expectation, we reduced some of our 
emerging biotech positions to manage interest rate risk. We also reduced gearing 
in the portfolio to the lower end of our normal gearing range of 5-10% to 
maintain flexibility to add to positions at lower prices. Having said that, we 
continue to believe that the unprecedented low valuations of emerging biotech 
already heavily discount the expected impact of higher rates. Eventually rates 
will stabilize or even fall, and that should precipitate a recovery in small 
capitalization ("cap") emerging biotech. 
 
It is important to note that the impact of higher interest rates has affected 
all unprofitable growth stocks, not just biotech. Figure 2 on page 6 of the Half 
Year Report, is a graph showing a basket of unprofitable technology stocks put 
together by Goldman Sachs, of which only 6% is represented by healthcare. One 
can see that there has been no appreciable recovery in the share prices of 
unprofitable technology companies since the drawdown that began in 2021. 
 
The Company's positioning remains overweight small caps and underweight large 
caps versus the Benchmark, as we continue to believe the small cap names are 
oversold and better value than the large caps. As noted in Figure 3 on page 7 of 
the Half Year Report, small and mid cap stocks have underperformed large cap 
stocks by a considerable margin since 31 March 2021. We had been expecting the 
small cap segment to begin outperforming and closing the performance gap, but 
disappointingly, that has not occurred yet. The tables in Figure 3 show the 
market cap distribution of the Company's holdings versus the Benchmark. One will 
note that the extent of small cap overweighting at 30 September 2023 is less 
aggressive than that at 31 March 2021. As mentioned earlier, this was simply the 
result of risk reduction in September when it became clear that 10-year interest 
rates were moving higher. Once interest rates have stabilized, it is likely that 
we will increase small cap exposure again to capture a long-overdue small cap 
recovery. 
 
Our confidence in a small cap recovery stems from the segment's unprecedented 
underperformance versus the S&P 500, record low absolute valuations, and 
continued innovation in the sector. 
 
One proxy used by investors to track small and mid cap biotech is the XBI, an 
exchange traded fund ("ETF") that tracks the equal-weighted S&P Biotech Select 
Industry Index. Figure 4 on page 8 of the Half Year Report shows the relative 
performance of the XBI versus the S&P 500 since the XBI's inception in 2006. For 
most of the past 15 years, the XBI has outperformed the S&P 500, but there have 
been temporary periods when the XBI has underperformed the S&P 500, as shown by 
the red circles. Following each of those periods of underperformance, the XBI 
has generally recovered and outperformed the S&P 500 once again (shown by the 
green arrows). As shown in Figure 4, the relative underperformance of the XBI 
versus the S&P 500 that began in early 2021 has been unprecedented in its 
severity and duration. Our continued view is that the XBI is overdue for a 
period of outperformance versus the S&P 500, consistent with the pattern of 
performance it has demonstrated previously. We were initially encouraged by the 
period of relative outperformance of the XBI in the second half of 2022, but 
since the beginning of 2023, the XBI has begun underperforming again due to 
rising interest rates. The latest dip in small and mid cap biotech has once 
again sent the XBI to record levels of underperformance versus the S&P 500. A 
reversion of performance seems likely. 
 
Our confidence in a recovery is underpinned by the absolute valuations of 
emerging biotech, which are now sitting at unprecedented lows. One objective 
measure of looking at valuation is to look at the ratio of a company's market 
cap to net cash on the company's balance sheet. Figure 5 (on page 9 of the Half 
Year Report) shows that the median ratio for the biotech industry is now at all 
-time lows, below that of the dot com bust, the Global Financial Crisis, and the 
Hillary Clinton drug pricing tweet in 2015. As shown in Figure 6 (on page 10 of 
the Half Year Report), about 25% of the biotech universe representing over 120 
companies are now trading at market caps below the net cash on their balance 
sheets. Importantly, while 10-year U.S. government yields are currently above 
4%, 10-year rates were also above 4% in the 2004-2007 timeframe and yet 
valuations back then were not nearly as low as they are now. We believe the 
impact of higher interest rates is more than reflected in current valuations and 
the emerging biotech sector is extremely oversold. 
 
Given the Company's worldwide mandate to invest in the best biotech investment 
opportunities globally, the Company has held a portion of its portfolio in 
China. As of 30 September 2023, China accounts for 9.2% of the portfolio. The 
Chinese central government made developing an innovative domestic biotechnology 
industry a priority in its 10-year plan in 2015. Since then, the government has 
increased data quality standards at the National Medical Products Administration 
(the Chinese equivalent of the U.S. FDA), accelerated drug review timelines to 
be on par with that of U.S. and Europe, and loosened requirements for 
unprofitable biotech companies to go public in China and Hong Kong. IQVIA, a 
data provider, estimates that Chinese biopharmaceutical companies accounted for 
15% of the worldwide drug development pipeline in 2022 versus 4% in 2012. Among 
emerging biotech (excluding large pharma), IQVIA estimates China-headquartered 
companies actually accounted for 20% of the global emerging biopharma pipeline 
in 2022, higher than the 17% share from Europe. Excluding the write-down in 
StemiRNA Therapeutics (explained later), the China portfolio outperformed our 
non-China holdings during the review period. As in the U.S., our China portfolio 
has been pressured over the past two years due to macro factors, including COVID 
lockdowns in China, U.S./China geopolitical tensions, and a disappointing post 
-COVID economic recovery. However, Chinese government commitment to developing 
an innovative biotech industry remains unchanged, and large pharma companies 
like AstraZeneca and Pfizer continue to invest in the country to tap into 
Chinese innovation. The Hang Seng Healthcare Index is now trading at all-time 
lows, so we believe a recovery in Chinese biotech is likely. Our Chinese 
holdings include BeiGene, which markets a best-in-class BTK inhibitor in the 
U.S. and China for leukemia and lymphoma, and Innovent Biologics, a Chinese 
biotech company developing the leading domestic GLP-1 agonist in China for 
obesity. We do not anticipate increasing our China exposure from current levels 
at this time given the macro uncertainty in the region. 
 
CONTRIBUTORS TO PERFORMANCE 
 
The principal contributors to performance during the review period were BELLUS 
Health, Chinook Therapeutics, Vera Therapeutics, Ionis Pharmaceuticals, and 
Amgen. 
 
  · BELLUS Health is a clinical stage company developing camlipixant for the 
treatment of refractory chronic cough. Inmid-April, GSK agreed to acquire the 
company for $2 billion in cash, representing a 103% premium to BELLUS' share 
price prior to the announcement. 
  · Chinook Therapeutics is a clinical-stage biopharmaceutical company focused 
on discovering, developing, and commercializing precision medicines for kidney 
diseases. In June, Novartis agreed to acquire the company for up to $3.5 
billion, a 67% premium to Chinook's last closing price. 
  · Vera Therapeutics is a clinical-stage biotechnology company focused on 
developing and commercializing treatments for patients with serious 
immunological diseases. In July, the company reported positive Phase 2a data for 
its lead asset atacicept in patients with IgA nephropathy, an autoimmune disease 
in which antibodies build up in kidney tissue. 
  · Ionis Pharmaceuticals is a fully-integrated biotechnology company and a 
leader in RNA-targeted therapies. In late September, the company announced 
positive results from a Phase 3 study of olezarsen in patients with familial 
chylomicronemia syndrome, a rare genetic disease that prevents the body from 
breaking down fats consumed through the diet. 
  · Amgen is a large cap biotechnology company with a diversified pipeline of 
commercial and clinical stage products in the areas of kidney disease, oncology, 
cardiovascular disease, inflammation, metabolic disorders, and neuroscience. The 
stock appreciated during the review period due to better-than-anticipated Q2 
2023 earnings and the announcement of positive data for two clinical stage 
oncology programs: tarlatamab, a first-in-class bispecific T-cell engager for 
lung cancer and AMG 193, a novel PRMT5 inhibitor for solid tumors. Additionally, 
Amgen is evaluating two anti-obesity drugs in clinical trials. The stock rose in 
part due to investor anticipation of data from those drugs in 2024. 
 
DETRACTORS FROM PERFORMANCE 
 
The principal detractors from performance were Travere Therapeutics, uniQure, 
StemiRNA Therapeutics, Mersana Therapeutics, and Compass Therapeutics. 
 
  · Travere Therapeutics is a commercial-stage biotechnology company focused on 
rare diseases. In late September, the company's two-year Phase 3 trial showed a 
numerical benefit for its drug, Filspari, versus standard of care on kidney 
function but missed statistical significance by a narrow margin in patients with 
IgA nephropathy. 
  · uniQure is a clinical-stage gene therapy company that focuses on 
neurological disorders. In June, the company showed interim data from its Phase 
1/2 trial of its gene therapy for Huntington's disease, a genetic disorder that 
causes breakdown of nerve cells in the brain, that fell below investor 
expectations. 
  · StemiRNA Therapeutics is a private Chinese biotech company developing mRNA 
-based vaccines and therapeutics. The Company initially invested in StemiRNA in 
2021 because it was developing one of the leading domestic mRNA-based COVID 
vaccines in China at a time when no mRNA-based vaccines had yet been approved in 
China. Given that the commercial opportunity for COVID vaccines had diminished 
substantially, the company decided to abandon its COVID program and focus on its 
earlier-stage programs, including a personalized cancer vaccine in Phase I. As a 
result, the company's next financing round is likely to be carried out at a 
substantial discount to its last round. The Company's third-party valuation 
agent, Kroll, recommended an appropriate write-down to reflect this at 30 
September 2023, which has been agreed by the Board and reflected in the 
Company's NAV. 
  · Mersana Therapeutics is a clinical stage company developing antibody-drug 
conjugate therapeutics. At the end of July, the company's shares declined when 
it announced that its lead asset, UpRi, had failed to show a significant benefit 
in late-stage ovarian cancer patients. 
  · Compass Therapeutics is a clinical stage oncology company developing 
bispecific antibodies. 
 
The company's lead drug is intended to restrict the supply of blood to tumors 
and has the potential to treat a variety of tumor types, including bile duct 
cancer and colorectal cancer. Shares declined as the company delayed clinical 
data updates due to slower-than-expected patient enrollment. 
 
BIOTECH INNOVATION REMAINS STRONG 
 
Ultimately, the successful development of novel medicines is the principal 
driver of value creation in the biotech sector, and innovation remains as strong 
as ever. We firmly believe that the valuation decline we've observed in the 
sector over the past two years is not reflective of the strong fundamentals of 
the industry. Innovation remains robust across a wide range of therapeutic areas 
and technologies, and it is the strength of this innovation that ultimately 
underpins our confidence that the biotech sector will recover from its current 
depressed levels. 
 
As shown in Figure 7 on page 12 of the Half Year Report, drug approvals for the 
first nine months of 2023 are occurring at an annualized rate above 50peryear, 
consistent with the elevated rate of drug approvals we've seen over the past few 
years. 
 
The increase in the number of drug approvals over the past 20 years has been 
driven by a favorable regulatory environment and the advent of a number of novel 
drug development technologies, including oligonucleotide-based therapies, gene 
therapy, and bispecific antibodies. 
 
A snapshot of the Company's exposure to some of these next-generation drug 
development technologies as at 30September 2023 is shown in Figure 8 on page 13 
of the Half Year Report. Investors in the Company get exposure to a wide cross 
-section of these cutting-edge technologies as they generate promising new 
medicines to deliver significant clinical benefit to patients. 
 
Here are some specific examples of companies working in each technology area: 
 
ANTIBODY-DRUG CONJUGATES ("ADCS") 
 
Antibody-drug conjugates are antibodies that are bound to a drug which allows 
targeting of drugs to specific cells. Typically, this approach has been used to 
deliver toxins to cancer cells in the body, resulting in targeted killing of 
thosecells. 
 
Examples of antibody-drug conjugates include Seagen's Padcev, a first-in-class 
ADC targeting nectin-4, a protein expressed in bladder cancer; and Gilead 
Sciences' Trodelvy, a first-in-class ADC targeting Trop-2, a surface antigen 
found in breast and bladder cancer. Trodelvy has been shown to reduce the risk 
of death for patients with certain types of advanced breast cancer by 49%. 
 
Amgen is a large-cap biotech company with a diversified pipeline of commercial 
and clinical stage products. Our investment thesis for Amgen is premised on 
attractive revenue growth in the near term, an undemanding valuation, and a 
deep, innovative clinical stage pipeline that is rapidly advancing. Amgen 
recently closed its acquisition of Horizon Therapeutics, integrating a pipeline 
of clinical and commercial stage rare disease therapies; we believe this 
acquisition will accelerate revenue growth for Amgen. Among Amgen's development 
pipeline is a suite of anti-obesity drugs, including AMG 133, a novel antibody 
-peptide conjugate. AMG 133 consists of a GLP-1 (glucagon-like peptide-1) 
receptor agonist tethered to a glucose-dependent insulinotropic polypeptide 
("GIP") receptor antagonist. GLP-1 agonism has been shown to drive weight loss 
by promoting satiety and decreasing gastric emptying. This is the mechanism by 
which Novo Nordisk's obesity drug Wegovy promotes weight loss. GIP receptor 
antagonism reduces adipogenesis, or fat cell development and accumulation, which 
is synergistic with GLP-1 agonism. This dual mechanism has the potential to 
differentiate from the current weight loss drugs on the market by having better 
tolerability, generating more significant weight loss, and delivering longer 
durability of effect, which allows for less frequent dosing. Amgen has announced 
compelling Phase 1 clinical data with up to 14.5% weight loss after three 
-monthly doses of AMG 133 in obese patients. Asof 30 September 2023, the Company 
had a 9.3% position in Amgen, making it the largest single position in the 
portfolio. 
 
CELL THERAPY 
 
Cell therapy involves administering modified cells to a patient to treat 
disease. The cells can be harvested from the patient's own body (autologous) or 
delivered from another source (allogeneic). The cells are commonly immune system 
cells that have been specifically modified to target and destroy cancer cells in 
the body. Examples of cell therapies include Gilead Sciences' Yescarta, an 
autologous T-cell treatment for lymphoma, and Johnson & Johnson's Carvykti, an 
immunotherapy for multiple myeloma in which a patient's T-cells are modified to 
target B-cell maturation antigen ("BCMA"). The clinical benefit from this 
approach can be dramatic, with Carvykti demonstrating a 95% response rate 
(i.e.reduction of tumor burden) with an average duration of response of close to 
two years. 
 
Immatics is a promising clinical stage oncology company developing cell 
therapies for solid tumors (i.e. cancers that occur in tissues or organs like 
the breast or lung rather than the blood, bone marrow, or lymphatic system). 
Other efforts to develop cell therapies for solid tumors have largely been 
unsuccessful as they have been unable to identify targets that are specific to 
tumor cells. Immatics is attempting to solve this problem by using a novel 
technology to target its cell therapy to a protein, PRAME, which is specifically 
expressed across several tumors and is not expressed by healthy cells. In Phase 
1 clinical studies, Immatics has shown encouraging data in melanoma with over 
half of patients responding to the therapy. Additional updates over the next 
year will be key as investors look to understand the full potential of the 
approach in melanoma and additional tumor types such as ovarian cancer, lung 
cancer, and uterine cancer. 
 
GENE THERAPY/GENE EDITING 
 
Gene therapy involves delivering a gene into the body to resolve a genetic 
defect in the patient that is causing disease. The gene is typically delivered 
into the patient's cells via a modified virus or a non-viral delivery vector 
such as liposome-based nanoparticles. Gene editing is an advanced form of gene 
therapy whereby the patient's existing genes are modified by a drug to 
ameliorate disease or increase patient function. Examples of gene therapy 
include Novartis' Zolgensma, a gene therapy for spinal muscular atrophy 
originally developed by biotech company AveXis, and Roche's Luxturna, a gene 
therapy initially developed by biotech company Spark Therapeutics for a rare 
retinal disease that leads to blindness. 
 
BioMarin Pharmaceutical is a pioneer in the development and commercialization of 
therapies for the treatment of rare diseases. It has a diversified and growing 
base business of ultra-orphan enzyme replacement therapies annualizing at more 
than $2 billion a year globally, with a high barrier of entry generating 
positive cash-flow. The company has recently launched two potentially 
blockbuster therapies, Voxzogo and Roctavian, that are sold through its existing 
global commercial infrastructure, providing significant operating leverage. 
Voxzogo, launched in late 2021, is the first treatment approved for 
achondroplasia, a form of dwarfism caused by impaired bone growth, and 
represents BioMarin's strongest global launch to date. Roctavian was approved 
earlier this year in the United States as the first-ever gene therapy treatment 
for hemophilia A. We believe there is meaningful patient demand for improved 
control of hemophilia A beyond just eliminating bleeds, including improved 
quality of life and better long-term patient outcomes. 
 
Hemophilia A is a lifelong, genetic condition caused by a mutation in the gene 
responsible for producing a protein called Factor VIII ("FVIII"), which is 
necessary for blood clotting. Hemophilia A patients are severely deficient in 
this clotting protein, making them susceptible to painful and potentially life 
-threatening bleeds. Treatment options for hemophilia Arequire infusions three 
times a week of recombinant FVIII or less frequent injections of another 
medication known as Hemlibra. While these medicines limit the bleeding events 
that hemophiliacs have, bleeding events can still occur spontaneously or upon 
minor injury. The bleeding risk creates many lifestyle restrictions for patients 
who suffer from the disease. Roctavian is the first-ever gene therapy approved 
in the United States and Europe for the treatment of hemophilia A. While not a 
cure, Roctavian is a one-time treatment that eliminates the need for frequent 
FVIII replacement therapy because the gene therapy allows the body to produce 
its own, natural FVIII. Studies have shown Roctavian can reduce the number of 
annual bleeds in hemophilia patients by about 50%. The therapy is new, so its 
ultimate duration of effect is currently not known, but the vast majority of 
patients still have benefit three years post treatment and beyond. BioMarin 
estimates 13,000 patients worldwide are eligible to receive Roctavian for its 
initial labeled indication. At an estimated net one-time price of $1.9 million 
per patient, Roctavian can significantly enhance BioMarin's near-term growth 
profile. 
 
OLIGONUCLEOTIDE THERAPIES 
 
Oligonucleotides are short strands of DNA or RNA that can be administered to 
patients to allow them to express a new protein or to block expression of a 
patients' genes for therapeutic effect. Such therapies come in a variety of 
forms. Antisense oligonucleotides are single-strand RNA molecules that can block 
gene expression, modify how genes are spliced, or repair faulty gene expression 
in order to create functional protein. Small interfering RNA therapeutics are 
short double-stranded non-coding duplexes that can silence gene expression by 
targeting specific messenger RNA ("mRNA") sequences for degradation, preventing 
their translation into protein. Finally, mRNA therapeutics are synthetic protein 
-coding mRNA sequences engineered and delivered to transiently express target 
proteins. Moderna and Pfizer's COVID vaccines work by delivering mRNA encoding 
virus protein to a person's cells, allowing those cells to express viral protein 
so that the immune system can create antibodies against them. 
 
Ionis Pharmaceuticals is a leader in RNA-targeted therapeutics, with a focus on 
neuroscience, rare diseases, and cardiometabolic disorders. Its antisense 
platform works by binding and destroying mRNA in a highly specific manner, such 
that the amount of disease-causing protein is significantly decreased. The 
technology can also be used to treat disease by increasing protein production; 
this led to the development of one of the most successful medicines on the 
market today, Spinraza, for spinal muscular atrophy. The company has made 
tremendous progress in the last 12months on both wholly-owned and partnered 
programs, creating significant value for shareholders. In November 2022, Ionis 
reported positive Phase 2 data from an extension study of its drug donidalorsen 
in patients with hereditary angioedema ("HAE"), a rare genetic disorder 
characterized by recurrent episodes of rapid swelling of tissues in the hands, 
feet, limbs, face, intestinal tract, and airway. In some cases, these attacks 
can be life-threatening. Ionis' drug showed a 95%+ reduction in frequency of 
attacks in the monthly dosing arm of the trial, an unprecedented result that 
suggests it could become the new standard of care in HAE. In April 2023, Ionis, 
together with partner Biogen, announced the approval of Qalsody (tofersen), 
marking a major scientific advance in the treatment of superoxide dismutase 1 
(SOD1)-amyotrophic lateral sclerosis ("ALS"). In September 2023, the company 
announced positive Phase 3 data for its drug, olezarsen, for familial 
chylomicronemia syndrome. Impressively, the drug eradicated acute pancreatitis 
events, marking another important medical breakthrough. Finally, following a 
very successful Phase 3 study in transthyretin polyneuropathy, we expect 
eplontersen (developed with partner AstraZeneca) to be approved in late December 
2023. 
 
MULTI-SPECIFIC ANTIBODIES/T-CELL ENGAGERS 
 
Antibody-based drugs have traditionally only bound to one protein target. 
Bispecific drugs have now been engineered to bind two different targets 
simultaneously. One type of bispecific antibody is a T-cell engager, which is an 
antibody that binds a T-cell in the body and a protein on a cancer cell 
simultaneously in order to allow the T-cell to kill the cancer cell. Examples of 
T-cell engagers include Amgen's Blincyto, a bispecific T-cell engager for 
leukemia, and Roche's Lunsumio, a T-cell engager for lymphoma that targets CD20 
on B-cells and CD3 expressed on T-cells. 
 
Janux Therapeutics is a next generation immuno-oncology company developing drugs 
that recruit T cells to kill cancer cells. T-cell engager therapies have 
traditionally been associated with toxicity due to non-specific activation of 
the immune system. To solve this problem, Janux has developed its T-cell 
engagers with masking technology such that the drugs are only active when they 
are present in tumors. In July 2023, Janux released first-in-human data from its 
masked T-cell engager program in prostate cancer demonstrating encouraging 
signals of efficacy with a reasonable safety profile. We look forward to 
potentially value-inflecting data updates from this prostate cancer program and 
another program in lung cancer in 2024. 
 
FINANCING ENVIRONMENT PRESENTS OPPORTUNITIES 
 
Given the decline in biotech valuations, IPO activity in the sector remains 
relatively muted, though we have seen a slight uptick in activity over the past 
couple of quarters as can be seen in Figure 9 on page 17 of the Half Year 
Report. The few companies undertaking an IPO are typically depending heavily on 
existing investors to make up a significant portion of the order book. We will 
remain selective in reviewing those opportunities. 
 
Given the diminished IPO activity, we did not make any new crossover investments 
during the review period. 
 
The follow-on offering market for biotech companies remains steady, as shown in 
Figure 10 on page 18 of the Half Year Report. Quality companies with strong 
assets have not had any problems raising money and many offerings have been 
multiple times oversubscribed. Earlier-stage companies have had more difficulty 
raising money in the current interest rate environment, and many of them have 
resorted to sharing non-public clinical data confidentially with a select group 
of investors to entice them to participate in a financing. Given OrbiMed's 
stature in the healthcare investing space, we are among a select group of 
investors that are regularly informed about those confidential equity 
placements. We believe this deal flow provides a source of investment 
opportunities not available to other investors. In some cases, warrant coverage 
and other preferential deal terms can be extracted from companies desperate for 
cash to support their operations. We will be selective in pursuing these 
financing opportunities to maximize Company returns. 
 
M&A ACTIVITY REMAINS ROBUST 
 
We believe M&A activity will remain an important source of investment 
performance in the near term for two reasons: 1)the unprecedented low valuations 
of emerging biotech companies make acquisitions less expensive for larger 
companies; and 2) there is a significant need for large pharmaceutical companies 
to acquire innovative biotech companies given the expected loss of exclusivity 
of approximately $250 bn of branded drug sales in the 2025-2030 timeframe. Areas 
of therapeutic interest in large pharmaceutical companies include inflammation & 
immunology, neuroscience, and cardiovascular disease, and we believe they are 
particularly interested in acquiring later-stage or commercial assets that will 
be able to deliver revenue in the second half of the decade. 
 
The tables in Figure 11 on page 19 of the Half Year Report list some selected 
transactions that have been announced recently, many of which were done at 
triple digit premiums. The red stars indicate transactions in which the Company 
held the target at the time of the acquisition announcement. The Company has 
directly benefited from M&A activity in the sector, and we expect to continue to 
do so. There are a number of holdings in the portfolio that we believe are 
likely M&A candidates. 
 
STRATEGY AND OUTLOOK 
 
While the persistent interest rate headwinds have been disappointing, we remain 
convinced that smaller emerging biotech will recover from its unprecedented low 
valuations and continue to believe overweighting that segment of the industry 
makes sense in the portfolio. Having said that, we did choose to reduce our 
small cap exposure and gearing during the month of September to increase our 
flexibility to add to names at lower prices. Our target gearing remains 5-10% 
but may fluctuate tactically based on the opportunity set we see at a given 
time. 
 
Turnover of the portfolio remains relatively high and annualized at 90.4% as at 
the half year end. This is because the smaller emerging biotech names can be 
quite volatile and move dramatically in response to various catalysts, whether 
it be a clinical trial result or an FDA regulatory decision. A 100% increase in 
share price or an 80% decline in share price on a single day are not uncommon 
for a stock when an important clinical trial result is announced. While much of 
this risk is idiosyncratic and can be minimized with diversification, we feel it 
is important to be nimble to navigate the catalyst path prudently for those 
stocks. We are constantly monitoring the risk/reward of any given position and 
will regularly modify the size of each position as appropriate, being mindful of 
valuation and downside risk. We aim to size our positions so that we don't lose 
more than 100 bps of performance on any single binary event. Our goal is to keep 
the portfolio populated with fresh ideas that have the best chances of 
delivering a positive investment return, so we generally reduce positions once 
we believe they are fully valued. 
 
What could catalyze a recovery in emerging biotech? 
 
1) A pause in Fed hikes and rate reductions. Rising interest rates have been by 
far the greatest headwind to overall performance. 
 
Fortunately, the Fed has already signaled that it is slowing down rate hikes 
since inflation has dropped, and it is quite possible that the Fed has 
completely finished raising rates. Current market expectations suggest a 
reduction in rates is possible in the second half of 2024. Clearly such a 
reduction would be a tremendous tailwind for the sector that could catalyze a 
recovery. 
 
2) M&A activity. As we've seen thus far, M&A activity can generate idiosyncratic 
returns for the portfolio. Increased M&A activity could spur a broader sector re 
-rating upwards. 
 
3) Major new product launches or dramatic clinical results addressing large 
markets. Generalist investors who invested in biotech during the COVID pandemic 
have largely exited the sector. In order to attract their interest again, 
groundbreaking clinical trial results for therapies addressing large markets or 
successful launches of products with multi-billion dollar potential would be 
helpful. Generalist investor interest, for example, has helped propel the share 
prices of the large pharmaceutical companies Eli Lilly and Novo Nordisk, the 
marketers of the GLP-1 based obesity agents, given the large addressable market 
opportunity. We think a similar dynamic could occur as more biotech drugs are 
developed for large indications like Alzheimer's, heart disease, and autoimmune 
disorders. 
 
As we've stated before, we have never seen such a large disconnect between 
biotech company valuations and the fundamental innovation occurring in the 
industry. We continue to believe this is a compelling entry point for investors 
seeking to gain exposure to a highly innovative sector developing important 
medicines for the benefit of patients worldwide. 
 
Geoff Hsu and Josh Golomb 
 
OrbiMed Capital LLC, Portfolio Manager 
 
9 November 2023 
 
INVESTMENT PORTFOLIO 
 
INVESTMENTS HELD AS AT 30 SEPTEMBER 2023 
 
                             Country/       Fair value  % of 
Security                     Region#        £'000       investments 
Amgen                        United States  28,030      9.3 
Biogen                       United States  21,272      7.0 
BioMarin Pharmaceutical      United States  17,978      6.0 
Argenx                       Netherlands    17,526      5.8 
lonis Pharmaceuticals        United States  17,307      5.7 
XtalPi*                      China          12,867      4.3 
United Therapeutics          United States  10,900      3.6 
Vera Therapeutics            United States  9,750       3.2 
Regeneron Pharmaceuticals    United States  9,099       3.0 
Xenon Pharmaceuticals        Canada         7,931       2.6 
Ten largest investments                     152,660     50.5 
Seagen                       United States  7,406       2.5 
Sarepta Therapeutics         United States  7,167       2.4 
Vaxcyte                      United States  7,006       2.3 
Keros Therapeutics           United States  6,411       2.1 
lnnovent Biologics           China          6,390       2.1 
Vertex Pharmaceuticals       United States  6,382       2.1 
Horizon Therapeutics         United States  6,179       2.0 
Gilead Sciences              United States  6,141       2.0 
Mirati Therapeutics          United States  6,064       2.0 
Aerovate Therapeutics        United States  6,024       2.0 
Twenty largest investments                  217,830     72.0 
Rhythm Pharmaceuticals       United States  5,915       2.0 
RAPT Therapeutics            United States  5,804       1.9 
Compass Therapeutics         United States  5,735       1.9 
Neumora Therapeutics         United States  5,192       1.7 
lmmatics                     Germany        4,917       1.6 
Janux Therapeutics           United States  4,341       1.4 
Syndax Pharmaceuticals       United States  4,078       1.4 
Apellis Pharmaceuticals      United States  3,870       1.3 
ALX Oncology Holdings        United States  3,579       1.2 
Scholar Rock Holding         United States  3,522       1.2 
Thirty largest investments                  264,783     87.6 
uniQure                      Netherlands    3,401       1.1 
KeyMed Biosciences           China          3,247       1.1 
Madrigal Pharmaceuticals     United States  2,610       0.9 
Arrowhead Pharmaceuticals    United States  2,548       0.8 
Crinetics Pharmaceuticals    United States  2,541       0.8 
MoonLake lmmunotherapeutics  United States  2,333       0.8 
Karuna Therapeutics          United States  1,940       0.6 
Akero Therapeutics           United States  1,906       0.6 
Kezar Life Sciences          United States  1,863       0.6 
Gracell Biotechnologies      China          1,778       0.6 
Forty largest investments                   288,950     95.5 
 
#Primary listing. 
 
*Unquoted investment. 
 
?Partnership interest. 
 
                        Country/       Fair value  % of 
Security                Region#        £'000       investments 
OrbiMed Asia            Asia           1,582       0.5 
Partners*? 
YS Biopharma            China          1,510       0.5 
Ventyx Biosciences      United States  1,473       0.5 
StemiRNA Therapeutics*  China          1,338       0.4 
Wuxi Biologics Cayman   China          1,308       0.4 
Edgewise Therapeutics   United States  1,247       0.4 
Essa Pharma             Canada         1,109       0.4 
Morphic Holding         United States  1,050       0.4 
Prelude Therapeutics    United States  874         0.3 
Heron Therapeutics      United States  677         0.2 
Fifty largest                          301,118     99.5 
investments 
Suzhou Basecare         China          627         0.2 
Medical 
Enliven Therapeutics    United States  522         0.2 
Repare Therapeutics     Canada         487         0.2 
BioAtla                 United States  389         0.1 
Xencor                  United States  316         0.1 
Awakn Life Sciences     Canada         309         0.1 
Galecto                 Denmark        34          0.0 
Awakn Life Sciences     Canada         -           - 
warrants 18/03/2024 
Total equities                         303,802     100.4 
OTC equity swaps - 
Financed 
BeiGene                 China          4,981       1.6 
Less: Gross exposure                   (6,305)     (2.0) 
on financed swaps 
Total OTC equity swaps                 (1,324)     (0.4) 
Total investments                      302,478     100.0 
including OTC equity 
swaps 
 
All of the above investments are equities unless otherwise stated. 
 
#Primary listing. 
 
*Unquoted investment. 
 
?Partnership interest. 
 
PORTFOLIO BREAKDOWN 
 
Investments           Fair value  % of 
 
                      £'000       investments 
Quoted 
Equities              288,015     95.2 
                      288,015     95.2 
Unquoted 
Equities              14,205      4.7 
Partnership interest  1,582       0.5 
                      15,787      5.2 
Derivatives 
OTC equity swaps      (1,324)     (0.4) 
Total investments     302,478     100.0 
 
CONDENSED INCOME STATEMENT 
 
FOR THE SIX MONTHSED 30 SEPTEMBER 2023 
 
                          (Unaudited)                  (Unaudited) 
 
                          Six months                   Six months 
                          ended                        ended 
 
                          30                           30 
                          September                    September 
                          2023                         2022 
                          Revenue  Capital   Total     Revenue  Capital  Total 
                   Notes  £'000    £'000     £'000     £'000    £'000    £'000 
Investment income  2      638      -         638       299      -        299 
(Losses)/gains on         -        (11,070)  (11,070)           44,507   44,507 
investments held 
at fair value 
through profit or 
loss 
Exchange losses           -        (881)     (881)              (5,293)  (5,293) 
on currency 
balances 
AIFM, portfolio    3      (73)     (1,383)   (1,456)   (91)     (1,731)  (1,822) 
management and 
performance fees 
Other expenses            (350)    (10)      (360)     (371)    (18)     (389) 
Return/(loss)             215      (13,344)  (13,129)  (163)    37,465   37,302 
before finance 
costs 
and taxation 
Finance costs             (26)     (498)     (524)     (14)     (258)    (272) 
Return/(loss)             189      (13,842)  (13,653)  (177)    37,207   37,030 
before taxation 
Taxation                  (83)     -         (83)      (39)     -        (39) 
Return/(loss) for         106      (13,842)  (13,736)  (216)    37,207   36,991 
the period 
Basic and diluted  4      0.3p     (37.0)p   (36.7)p   (0.5)p   91.2p    90.7p 
earnings/(loss) 
per share 
 
The Company does not have any income or expenses which are not included in the 
profit or loss for the period. Accordingly the "return/(loss) for the period" is 
also the "Total Comprehensive Income for the period", as defined in IAS 1 
(revised) and no separate Statement of Other Comprehensive Income has been 
presented. 
 
The "Total" column of this statement is the Company's Income Statement, prepared 
in accordance with UK-adopted International Accounting Standards and with the 
requirements of the Companies Act 2006 as applicable to companies reporting 
under those standards. The "Revenue" and "Capital" columns are supplementary to 
this and are prepared under guidance published by the Association of the 
Investment Companies. 
 
All items in the above statement are from continuing operations. 
 
CONDENSED STATEMENT OF CHANGES IN EQUITY 
 
(UNAUDITED) SIX MONTHSED 30 SEPTEMBER 2023 
 
                      Ordinary  Share    Capital 
                      Share     premium  redemption  Capital   Revenue 
                      capital   account  reserve     reserve   reserve  Total 
                      £'000     £'000    £'000       £'000     £'000    £'000 
At 31 March 2023      9,684     79,951   13,746      227,968   (1,058)  330,291 
Net (loss)/profit     -         -        -           (13,842)  106      (13,736) 
for the period 
Repurchase of own     (715)     -        715         (23,138)  -        (23,138) 
shares for 
cancellation 
At 30 September 2023  8,969     79,951   14,461      190,988   (952)    293,417 
 
(UNAUDITED) SIX MONTHSED 30 SEPTEMBER 2022 
 
                      Ordinary  Share    Capital 
                      Share     premium  redemption  Capital   Revenue 
                      capital   account  reserve     reserve   reserve  Total 
                      £'000     £'000    £'000       £'000     £'000    £'000 
At 31 March 2022      10,289    79,951   13,141      291,231   (404)    394,208 
Net profit/(loss)     -         -        -           37,207    (216)    36,991 
for the period 
Repurchase of own     (269)     -        269         (10,465)  -        (10,465) 
shares for 
cancellation 
At 30 September 2022  10,020    79,951   13,410      317,973   (620)    420,734 
 
CONDENSED STATEMENT OF FINANCIAL POSITION 
 
AS AT 30 SEPTEMBER 2023 
 
                                   (Unaudited)   (Audited) 
                                   30 September  31 March 
                                   2023          2023 
                            Notes  £'000         £'000 
Non current assets 
Investments held at fair           303,802       357,229 
value through profit or 
loss 
Current assets 
Other receivables                  1,276         508 
Cash and cash equivalents          3,133         2,772 
                                   4,409         3,280 
Total assets                       308,211       360,509 
Current liabilities 
Other payables                     2,033         8,846 
Loan                               11,437        20,170 
Derivative - OTC equity            1,324         1,202 
swaps 
                                   14,794        30,218 
Net assets                         293,417       330,291 
Equity attributable to 
equity holders 
Ordinary share capital             8,969         9,684 
Share premium account              79,951        79,951 
Capital redemption reserve         14,461        13,746 
Capital reserve                    190,988       227,968 
Revenue reserve                    (952)         (1,058) 
Total equity                       293,417       330,291 
Net asset value per share   5      817.9p        852.6p 
 
CONDENSED STATEMENT OF CASH FLOWS 
 
FOR THE SIX MONTHSED 30 SEPTEMBER 2023 
 
                                     (Unaudited)        (Unaudited) 
                                     Six months ended   Six months ended 
                                     30 September 2023  30 September 2022 
                                     £'000              £'000 
Operating activities 
(Loss)/profit before taxation*       (13,653)           37,030 
Finance costs                        524                272 
Losses/(gains) on investments held   10,527             (45,419) 
at fair value through profit & loss 
Transaction costs**                  -                  912 
Foreign exchange losses              881                5,293 
Decrease in other receivables        9                  24 
(Decrease)/increase in other         (77)               114 
payables 
Taxation paid                        (83)               (39) 
Net cash outflow from operating      (1,872)            (1,813) 
activities 
Investing activities 
Purchases of investments             (116,198)          (254,895) 
Sales of investments                 152,237            278,800 
Transaction costs                    -                  (912) 
Net cash inflow from investing       36,039             22,993 
activities 
Financing activities 
Repurchase of own shares for         (23,668)           (9,334) 
cancellation 
Net repayment of the loan facility   (9,614)            (11,574) 
Finance costs - interest paid        (524)              (272) 
Net cash outflow from financing      (33,806)           (21,180) 
activities 
Net increase in cash and cash        361                - 
equivalents 
Cash and cash equivalents at start   2,772              - 
of period 
Cash and cash equivalents at end of  3,133              - 
period? 
 
*                Includes dividends earned during the period of £557,000 (six 
months ended 30 September 2022: £299,000). 
 
**             In the current period, transaction costs are included within 
"loss before taxation", hence it is zero compared to the prior period. 
 
?Collateral cash held at Goldman Sachs (2022: £nil). 
 
CHANGES IN LIABILITIES ARISING FROM FINANCING ACTIVITIES 
 
                                    (Unaudited)        (Unaudited) 
                                    Six months ended   Six months ended 
                                    30 September 2023  30 September 2022 
                                    £'000              £'000 
Balance as at start of period       20,170             31,741 
Net repayment of the loan facility  (9,614)            (11,574) 
Foreign exchange losses             881                5,293 
Loan balance                        11,437             25,460 
 
NOTES TO THE FINANCIAL STATEMENTS 
 
1.A) GENERAL INFORMATION 
 
The Biotech Growth Trust PLC is a company incorporated and registered in England 
and Wales. The Company operates as an investment company within the meaning of 
Section 833 of the Companies Act 2006 and has made a successful application 
under Regulation 5 of the Investment Trust (Approved Company) (Tax) Regulations 
2011 for investment trust status to apply to all accounting periods commencing 
on or after 1 April 2012. 
 
1.B) BASIS OF PREPARATION 
 
The Company's condensed financial statements for the six months ended 30 
September 2023 have been prepared in accordance with IAS 34 "Interim Financial 
Reporting". They do not include all the financial information required for the 
full annual financial statements and have been prepared using accounting 
policies adopted in the audited financial statements for the year ended 31 March 
2023. 
 
Those financial statements have been prepared in accordance with International 
Financial Reporting Standards ("IFRS"). 
 
The Directors have sought to prepare the financial statements in compliance with 
presentational guidance set out in the Statement of Recommended Practice (the 
"SORP") for Investment Trust Companies and Venture Capital Trusts produced by 
the Association of Investment Companies ("AIC"), dated July 2022. 
 
The Company's financial statements are presented in sterling and all values are 
rounded to the nearest thousand pounds (£'000) except when otherwise indicated. 
 
The financial statements have not been audited by the Company's auditors. 
 
1.C) SEGMENTAL REPORTING 
 
IFRS 8 requires entities to define operating segments and segment performance in 
the financial statements based on information used by the Board of Directors. 
The Directors are of the opinion that the Company is engaged in a single segment 
of business, being investment business. 
 
1.D) GOING CONCERN 
 
The Directors believe that it is appropriate to adopt the going concern basis in 
preparing the financial statements as the assets of the Company consist mainly 
of securities that are readily realisable and, accordingly, the Company has 
adequate financial resources to continue in operational existence for at least 
12 months from the date of the approval of the financial statements. The next 
continuation vote of the Company will be held at the Annual General Meeting in 
2025 and further opportunities to vote on the continuation of the Company will 
be given to shareholders every five years thereafter. 
 
2. INCOME 
 
                              (Unaudited)   (Unaudited) 
                              Six months    Six months 
                              ended         ended 
                              30 September  30 September 
                              2023          2022 
                              £'000         £'000 
Investment income 
Overseas dividend income      557           299 
Other income - bank interest  81            - 
Total income                  638           299 
 
3. AIFM, PORTFOLIO MANAGEMENT AND PERFORMANCE FEES 
 
                               Total                          Total 
                               (Unaudited)                    (Unaudited) 
                               Six months                     Six months 
                               ended                          ended 
                               30                             30 
                               September                      September 
             Revenue  Capital  2023         Revenue  Capital  2022 
             £'000    £'000    £'000        £'000    £'000    £'000 
AIFM fee     22       421      443          27       524      551 
Portfolio    51       962      1,013        64       1,207    1,271 
management 
fee - 
OrbiMed 
Capital 
LLC 
Performance  -        -        -            -        -        - 
fee 
             73       1,383    1,456        91       1,731    1,822 
 
As at 30 September 2023, no performance fees were accrued or payable (30 
September 2022: Nil). 
 
For further details on the performance fee arrangements see pages 48 and 49 of 
the Company's 2023 Annual Report. 
 
4. BASIC AND DILUTED EARNINGS/(LOSS) PER SHARE 
 
                                  (Unaudited)   (Unaudited) 
                                  Six months    Six months 
                                  ended         ended 
                                  30 September  30 September 
                                  2023          2022 
                                  £'000         £'000 
The earnings/(loss) per share is 
based on the following figures: 
Net revenue return/(loss)         106           (216) 
Net capital (loss)/return         (13,842)      37,207 
Net total (loss)/return           (13,736)      36,991 
Weighted average number of        37,411,567    40,781,100 
shares in issue during the 
period 
                                  Pence         Pence 
Revenue earnings/(loss) per       0.3           (0.5) 
share 
Capital (loss)/earnings per       (37.0)        91.2 
share 
Total (loss)/earnings per share   (36.7)        90.7 
 
5. NET ASSET VALUE PER SHARE 
 
The net asset value per share is based on the net assets attributable to equity 
shareholders of £293,417,000 (31 March 2023: £330,291,000) and on 35,875,917 
shares (31 March 2023: 38,737,419) being the number of shares in issue at the 
period end. 
 
6. TRANSACTION COSTS 
 
Purchase and sale transaction costs for the six months ended 30 September 2023 
amounted to £543,000 (six months ended 30 September 2022: £912,000); broken down 
as follows: purchase transactions for the six months ended 30September 2023 
amounted to £124,000 (six months ended 30 September 2022: £411,000). Sale 
transactions amounted to £419,000 (six months ended 30 September 2022: 
£501,000). These costs comprise mainly commission. 
 
7. INVESTMENTS 
 
IFRS 13 requires the Company to classify fair value measurements using the fair 
value hierarchy that reflects the significance of the inputs used in making the 
measurements. The fair value hierarchy consists of the following threelevels: 
 
  · Level 1 - quoted prices (unadjusted) in active markets for identical assets 
or liabilities; 
  · Level 2 - inputs other than quoted prices included with Level 1 that are 
observable for the asset or liability, either directly (i.e. as prices) or 
indirectly (i.e. derived from prices); and 
  · Level 3 - inputs for the asset or liability that are not based on observable 
market data (unobservable inputs). 
 
At 30 September 2023 the investments in OrbiMed Asia Partners LP Fund (the LP 
Fund), XtalPi, and StemiRNA have been classified as Level 3 (see Level 3 
reconciliation below). 
 
The LP Fund is valued quarterly by OrbiMed Advisors LLC and is audited annually 
by KPMG LLP. As the 30 September 2023 valuation is not yet available, the LP 
Fund has been valued at its net asset value as at 30 June 2023. It is believed 
that the value of the LP Fund as at 30 September 2023 will not be materially 
different. If the value of the LP Fund were to increase or decrease by 10%, 
while other variables had remained constant, the return and net assets 
attributable to shareholders for the period ended 30 September 2023 would have 
increased or decreased by £158,000 or 0.44ppershare (year ended 31 March 2023: 
£216,000 or 0.56p per share). 
 
The following investments have been valued by the Board following 
recommendations made by the Valuation Committee which has reviewed in detail 
both the valuations and the methodologies provided by Kroll, an independent 
valuer. 
 
StemiRNA and XtalPi have been valued using the probability-weighted expected 
returns methodology and are classified as Level 3. If the value of these 
investments were to increase or decrease by 10%, while all other variables 
remain constant, the return attributable to shareholders for the period ended 30 
September 2023 would have increased or decreased by £1,421,000 or 3.96p per 
share (year ended 31 March 2023: £1,786,000 or 4.61p per share). 
 
The table overleaf sets out fair value measurements of financial assets in 
accordance with the IFRS13 fair value hierarchy system: 
 
(UNAUDITED) SIX MONTHSED 30 SEPTEMBER 2023 
 
                                 Level 1  Level 2  Level 3  Total 
                                 £'000    £'000    £'000    £'000 
Equity investments               288,015  -        14,205   302,220 
Derivatives: equity swap         -        (1,324)  -        (1,324) 
Partnership interest in LP Fund  -        -        1,582    1,582 
Total                            288,015  (1,324)  15,787   302,478 
 
(AUDITED) YEARED 31 MARCH 2023 
 
                                 Level 1  Level 2  Level 3  Total 
                                 £'000    £'000    £'000    £'000 
Equity investments               336,962  -        18,103   355,065 
Derivatives: equity swap         -        (1,202)  -        (1,202) 
Partnership interest in LP Fund  -        -        2,164    2,164 
Total                            336,962  (1,202)  20,267   356,027 
 
LEVEL 3 RECONCILIATION 
 
Please see below a reconciliation disclosing the changes during the six months 
for the financial assets and liabilities, designated at fair value through 
profit or loss, classified as being Level 3. 
 
                                (Unaudited) 
                                Six months    (Audited) 
                                ended         Year ended 
                                30 September  31 March 
                                2023          2023 
                                £'000         £'000 
Assets as at beginning of       20,267        33,927 
period 
Purchase of unquoted            -             - 
investments 
Sale of unquoted investments    -             - 
Net movement in investment      (4,480)       (3,773) 
holding gains during the 
period/year 
Transfer from level 3 to level  -             (9,887) 
1 
Assets as at 30 September/31    15,787        20,267 
March 
 
8. PRINCIPAL RISKS PROFILE 
 
The principal risks the Company faces from its financial instruments are: 
 
i)              market price risk, including currency risk, interest rate risk 
and other price risk; 
 
ii)            liquidity risk; and 
 
iii)           credit risk. 
 
Market price risk - This is the risk that the fair value or future cash flows of 
a financial instrument held by the Company may fluctuate because of changes in 
market prices. This market risk comprises three elements - currency risk, 
interest rate risk and other price risk. 
 
Liquidity risk - This is the risk that the Company will encounter difficulty in 
meeting obligations associated with financial liabilities. 
 
Credit risk - This is the risk that the counterparty to a transaction fails to 
discharge its obligations under that transaction, which could result in the 
Company suffering a loss. 
 
Details of the Company's management of these risks can be found in note 14 in 
the Company's 2023 Annual Report. 
 
There have been no changes to the management of or the exposure to these risks 
since the date of the Annual Report. 
 
9. RELATED PARTY TRANSACTIONS 
 
There have been no changes to the related party arrangements or transactions as 
reported in the Annual Report for the year ended 31 March 2023. 
 
10. CREDIT RISK 
 
J.P. Morgan Securities LLC ("J.P. Morgan") may take assets with a value of up to 
140% of the Company's loan facility as collateral. Such assets held by J.P. 
Morgan are available for rehypothecation*. 
 
As at 30 September 2023, the maximum value of assets available for 
rehypothecation was £16 million being 140% of the loan balance (£11.4 million). 
 
*See Glossary. 
 
11. COMPARATIVE INFORMATION 
 
The financial information contained in this half year report does not constitute 
statutory accounts as defined in sections 434 to 436 of the Companies Act 2006. 
The financial information for the six months ended 30 September 2023 and 2022 
has not been audited by the Company's auditor. 
 
The information for the year ended 31 March 2023 has been extracted from the 
latest published audited financial statements. The audited financial statements 
for the year ended 31 March 2023 have been filed with the Registrar of the 
Companies. The report of the Company's auditor on those accounts was 
unqualified, did not include a reference to any matters to which the Company's 
auditor drew attention by way of emphasis without qualifying the report and did 
not contain statements under section 498(2) or 498(3) of the Companies Act 2006. 
 
INTERIM MANAGEMENT REPORT 
 
PRINCIPAL RISKS AND UNCERTAINTIES 
 
A review of the half year, including reference to the risks and uncertainties 
that existed during the period and the outlook for the Company can be found in 
the Chairman's Statement and in the Portfolio Manager's Review. The principal 
risks faced by the Company fall into the following broad categories: market 
risk; portfolio performance; share price performance; cyber risk; key person 
risk; valuation risk; climate change; counterparty risk; and operational 
disruption. Information on each of these areas is given in the Strategic 
Report/Business Review within the Annual Report for the year ended 31 March 
2023. The Company's principal risks and uncertainties have not changed 
materially since the date of that report and are not expected to change 
materially for the remaining six months of the Company's financial year. 
 
The Board, the AIFM and the Portfolio Manager discuss and identify emerging 
risks as part of the risk identification process and have considered that 
demographic trends in China and Europe, including the effects of an ageing 
workforce, may have an impact on global markets and that threats to research 
funding and the effects of increased costs in the biotech sector may affect the 
Company's investee companies. 
 
RELATED PARTY TRANSACTIONS 
 
During the first six months of the current financial year, no transactions with 
related parties have taken place which have materially affected the financial 
position or the performance of the Company. 
 
GOING CONCERN 
 
The Directors believe, having considered the Company's investment objective, 
risk management policies, capital management policies and procedures, the nature 
of the portfolio and expenditure projections, that the Company has adequate 
resources, an appropriate financial structure and suitable management 
arrangements in place to continue in operational existence for the foreseeable 
future and, more specifically, that there are no material uncertainties relating 
to the Company that would prevent its ability to continue in such operational 
existence for at least twelve months from the date of the approval of this half 
yearly financial report. For these reasons, they consider there is reasonable 
evidence to continue to adopt the going concern basis in preparing the financial 
statements. 
 
DIRECTORS' RESPONSIBILITIES 
 
The Board of Directors confirms that, to the best of its knowledge: 
 
(i)            the condensed set of financial statements contained within the 
Half Year Report have been prepared in accordance with applicable International 
Accounting Standards ("IAS") 34; and 
 
(ii)          the interim management report includes a true and fair review of 
the information required by: 
 
(a)         DTR 4.2.7R of the Disclosure Guidance and Transparency Rules, being 
an indication of important events that have occurred during the first six months 
of the financial year and their impact on the condensed set of financial 
statements; and a description of the principal risks and uncertainties for the 
remaining six months of the year; and 
 
(b)         DTR 4.2.8R of the Disclosure Guidance and Transparency Rules, being 
related party transactions that have taken place in the first six months of the 
current financial year and that have materially affected the financial position 
or performance of the entity during that period; and any changes in the related 
party transactions described in the last annual report that could do so. 
 
The Half Year Report has not been audited by the Company's auditors. 
 
This Half Year Report contains certain forward-looking statements. These 
statements are made by the Directors in good faith based on the information 
available to them up to the date of this report and such statements should be 
treated with caution due to the inherent uncertainties, including both economic 
and business risk factors, underlying any such forward-looking information. 
 
For and on behalf of the Board 
 
Roger Yates 
 
Chairman 
 
9 November 2023 
 
GLOSSARY OF TERMS AND ALTERNATIVE PERFORMANCE MEASURES 
 
AIC 
 
Association of Investment Companies. 
 
ALTERNATIVE INVESTMENT FUND MANAGERS DIRECTIVE ("AIFMD") 
 
Agreed by the European Parliament and the Council of the European Union and 
transposed into UK legislation, the AIFMD classifies certain investment 
vehicles, including investment companies, as Alternative Investment Funds 
("AIFs") and requires them to appoint an Alternative Investment Fund Manager 
("AIFM") and depositary to manage and oversee the operations of the investment 
vehicle. The Board of the Company retains responsibility for strategy, 
operations and compliance and the Directors retain a fiduciary duty to 
shareholders. 
 
ALTERNATIVE PERFORMANCE MEASURE ("APM") 
 
An APM is a numerical measure of the Company's current, historical or future 
financial performance, financial position or cash flows, other than a financial 
measure defined or specified in the applicable financial framework. In selecting 
these APMs, the Directors considered the key objectives and expectations of 
typical investors in an investment trust such as the Company. Definitions of the 
terms used and the basis of calculation are set out in this Glossary and the 
APMs are indicated with a caret (^). 
 
ACTIVE SHARE^ 
 
Active Share is expressed as a percentage and shows the extent to which a fund's 
holdings and their weightings differ from those of the fund's benchmark index. A 
fund that closely tracks its index might have a low Active Share of less than 
20% and be considered passive, while a fund with an Active Share of 60% or 
higher is generally considered to be actively managed. 
 
CROSSOVER INVESTMENTS 
 
Investments in a company's last private round prior to an initial public 
offering ("IPO"). 
 
DISCOUNT OR PREMIUM^ 
 
A description of the difference between the share price and the net asset value 
per share. The size of the discount or premium is calculated by subtracting the 
share price from the net asset value per share and is usually expressed as a 
percentage (%) of the net asset value per share. If the share price is higher 
than the net asset value per share the result is a premium. If the share price 
is lower than the net asset value per share, the shares are trading at a 
discount. 
 
                                   As at         As at 
                                   30 September  31 March 
                                   2023          2023 
                                   pence         pence 
Share price                        776.0         783.0 
Net asset value per share (see     817.9         852.6 
note 5 for further information) 
Discount of share price to net     5.1%          8.2% 
asset value per share 
 
DRAWDOWN 
 
A measure of downside volatility, a drawdown refers to how much an investment or 
sector is down from the peak before it recovers back to the peak. 
 
GEARING^ 
 
Gearing represents prior charges, adjusted for net current assets/liabilities, 
expressed as a percentage of net assets. Prior charges includes all loans for 
investment purposes. 
 
                                    As at         As at 
                                    30 September  31 March 
                                    2023          2023 
                                    £'000         £'000 
Loan facility                       (11,437)      (20,170) 
Net current assets/(liabilities)    2,376         (5,566) 
(excluding loan and derivatives) 
                                    (9,061)       (25,736) 
Net assets                          293,417       330,291 
Gearing                             3.1%          7.8% 
 
GICS 
 
Global Industry Classification Standards. GICS is an industry analysis framework 
that helps investors understand the key business activities for companies around 
the world. MSCI and S&P Dow Jones Indices developed this classification standard 
to provide investors with consistent and exhaustive industry definitions. 
 
NET ASSET VALUE ("NAV") 
 
The value of the Company's assets, principally investments made in other 
companies and cash being held, minus any liabilities. The NAV is also described 
as `shareholders' funds'. The NAV is often expressed in pence per share after 
being divided by the number of shares which are in issue at the relevant date. 
The NAV per share is unlikely to be the same as the share price which is the 
price at which the Company's shares can be bought or sold by an investor. The 
share price is determined by the relationship between the demand and supply of 
the shares in the secondary market. 
 
NAV PER SHARE TOTAL RETURN^ 
 
The NAV per share total return for the period ended 30 September 2023 is 
calculated by taking the percentage movement from the NAV per share as at 31 
March 2023 of 852.6p (31 March 2022: 957.8p) to the NAV at 30 September 2023 of 
817.9p (30 September 2022: 1,049.7p). The Company has not paid any dividends to 
shareholders during the period. 
 
ONGOING CHARGES^ 
 
Ongoing charges are calculated by taking the Company's annualised operating 
expenses expressed as a proportion of the average daily net asset value of the 
Company over the year. 
 
The costs of buying and selling investments are excluded, as are interest costs, 
taxation, performance fees, cost of buying back or issuing ordinary shares and 
other non-recurring costs. 
 
                                                As at         As at 
                                                30 September  31 March 
                                                2023          2023 
                                                £'000         £'000 
AIFM and portfolio management fees*             2,862         3,531 
Operating expenses*                             688           692 
Total expenses*                                 3,550         4,223 
Average daily net assets for the period/year    325,833       394,525 
Ongoing charges                                 1.1%          1.1% 
 
*Estimated expenses for the year ending 31 March 2024 based on assets as at 30 
September 2023. 
 
OTHER COST RATIOS 
 
Total ongoing costs as disclosed in the Company's latest Key Information 
Document (KID) is 1.30%. This represents the impact of the costs that are 
incurred each year for the running of the Company including the impact of the 
finance costs (0.2%). 
 
OTC EQUITY SWAPS 
 
Over-the-Counter ("OTC") refers to the process of how securities are traded via 
a broker - dealer network, as opposed to a centralised exchange. 
 
An equity swap is an agreement where one party (counterparty) transfers the 
total return of an underlying equity position to the other party (swap holder) 
in exchange for a payment of the principal, and interest for financed swaps, at 
a set date. Total return includes dividend income and gains or losses from 
market movements. The exposure of the holder is the market value of the 
underlying equity position. 
 
There are two main types of equity swaps: 
 
  · Funded - where payment is made on acquisition. They are equivalent to 
holding the underlying equity position with the exception of additional 
counterparty risk and not possessing voting rights in the underlying investment; 
and 
  · Financed - where payment is made on maturity. As there is no initial outlay, 
financed swaps increase exposure by the value of the underlying equity position 
with no initial increase in the investments' value - there is therefore embedded 
leverage within a financed swap due to the deferral of payment to maturity. 
 
QUANTITATIVE TIGHTENING 
 
Quantitative tightening is when the Federal Reserve reduces its balance sheet by 
selling its Treasury bonds or allowing them to mature, removing liquidity from 
the financial markets. It is the opposite of quantitative easing. 
 
REHYPOTHECATION 
 
Rehypothecation is the practice by banks and brokers of using collateral posted 
as security for loans as regulated by the U.S. Securities Exchange Commission. 
 
SHARE PRICE TOTAL RETURN^ 
 
The share price total return for the period ended 30 September 2023 is 
calculated by taking the percentage movement from the share price as at 31 March 
2023 of 783.0p (31 March 2022: 898.0p) to the share price as at 30 September 
2023 of 776.0p (30 September 2022: 994.0p). The Company has not paid any 
dividends to shareholders during the period. 
 
^Alternative Performance Measure 
 
9 November 2023 
Frostrow Capital LLP 
Company Secretary 
 
 
This information was brought to you by Cision http://news.cision.com 
 
 
END 
 
 

(END) Dow Jones Newswires

November 09, 2023 02:00 ET (07:00 GMT)

Biotech Growth (LSE:BIOG)
Gráfica de Acción Histórica
De Abr 2024 a May 2024 Haga Click aquí para más Gráficas Biotech Growth.
Biotech Growth (LSE:BIOG)
Gráfica de Acción Histórica
De May 2023 a May 2024 Haga Click aquí para más Gráficas Biotech Growth.