Filed Pursuant to Rule 424(b)(3)
Registration No. 333-283349
PROSPECTUS
SUPPLEMENT
Up to $113,792,846.40
Shares of Common Stock
We previously
entered into an Open Market Sale AgreementSM, or sales agreement, dated October 4, 2021, with Jefferies LLC, or Jefferies, relating to shares of our common stock offered by this prospectus
supplement. In accordance with the terms of the sales agreement, we may offer and sell shares of our common stock having an aggregate offering price of up to $113,792,846.40 from time to time to or through Jefferies as our sales agent. We originally
filed with the Securities and Exchange Commission a prospectus supplement, dated October 4, 2021, or the Prior ATM Prospectus Supplement, for the offer and sale of up to $150.0 million of shares of our common stock, from time to time
through Jefferies, acting as our sales agent, pursuant to the sales agreement under the automatic shelf registration statement on Form S-3ASR (Registration Statement
No. 333-260012), as amended. As of the date of this prospectus, we have issued and sold 5,149,446 shares of our common stock pursuant to the sales agreement at a weighted average exercise price of $6.97
per share, resulting in net proceeds to us of approximately $35.1 million. The common stock remaining available to be sold under the Prior ATM Prospectus Supplement as of the date of this prospectus supplement will no longer be offered and sold
under the Prior ATM Prospectus Supplement, but will instead be offered and sold under this prospectus supplement. Accordingly, we may offer and shell shares of our common stock having an aggregate offering price of up to $113,792,846.40.
Our common stock is listed on the Nasdaq Global Select Market under the symbol PMVP. On November 26, 2024, the last reported
sale price of our common stock on the Nasdaq Global Select Market was $1.59 per share.
Sales of our common stock, if any, under this
prospectus supplement and the accompanying prospectus will be made in sales deemed to be at the market offerings as defined in Rule 415 promulgated under the Securities Act of 1933, as amended, or the Securities Act. Jefferies is
not required to sell any specific number or dollar amount of securities, but will act as a sales agent using commercially reasonable efforts to sell on our behalf all of the shares of common stock requested to be sold by us, consistent with its
normal trading and sales practices, on mutually agreed terms between Jefferies and us. There is no arrangement for funds to be received in any escrow, trust or similar arrangement.
The compensation to Jefferies for sales of common stock sold pursuant to the sales agreement will be equal to 3.0% of the gross proceeds of any
shares of common stock sold under the sales agreement. See Plan of Distribution beginning on page S-10 for additional information regarding Jefferies compensation. In connection with the sale
of the common stock on our behalf, Jefferies will be deemed to be an underwriter within the meaning of the Securities Act and the compensation of Jefferies will be deemed to be underwriting commissions or discounts. We have also agreed
to provide indemnification and contribution to Jefferies with respect to certain liabilities, including liabilities under the Securities Act or the Securities Exchange Act of 1934, as amended, or the Exchange Act.
We are a smaller reporting company and may rely on exemptions from certain disclosure requirements that are available to smaller
reporting companies, including many of the same exemptions from disclosure requirements as those that are available to emerging growth companies, such as reduced disclosure obligations regarding executive compensation in this prospectus and our
periodic reports and proxy statements.
INVESTING IN
OUR COMMON STOCK INVOLVES SIGNIFICANT RISKS. YOU SHOULD REVIEW CAREFULLY THE RISK FACTORS ON PAGE S-5 OF THIS PROSPECTUS SUPPLEMENT AND IN THE ACCOMPANYING PROSPECTUS
AND IN THE DOCUMENTS INCORPORATED BY REFERENCE IN THIS PROSPECTUS SUPPLEMENT THAT WE HAVE FILED AND WILL FILE WITH THE SECURITIES AND EXCHANGE COMMISSION BEFORE INVESTING IN OUR COMMON STOCK.
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed
upon the adequacy or accuracy of this prospectus supplement. Any representation to the contrary is a criminal offense.
Jefferies
The date of this prospectus supplement is November 27, 2024