Form 4: RA Capital Boosts PepGen Stake by $30M

Sentiment:

Insider Ownership Change 30 September 2025 4:35 PM

RA Capital Management, L.P. and its affiliates acquired 9,375,000 shares of PepGen Inc. common stock for $3.20 per share, increasing their beneficial ownership to over 20 million shares.

Capital raiseRA Capital Management, L.P. and its affiliates acquired 9,375,000 shares of PepGen Inc. common stock for $3.20 per share, totaling $30,000,000.The transaction code "P" typically indicates a purchase from the issuer, suggesting a direct issuance of shares and a capital infusion for PepGen Inc.

Better than expectedA major institutional investor and existing 10% owner, RA Capital Management, L.P., significantly increased its stake in PepGen Inc.The acquisition of 9,375,000 shares for $30,000,000 demonstrates strong confidence in the company's future.The transaction was pre-planned under a Rule 10b5-1(c) plan, indicating a strategic and deliberate investment decision.

Summary

RA Capital Management, L.P. and its affiliated funds (RA Capital Healthcare Fund, L.P. and RA Capital Nexus Fund II, L.P.) acquired 9,375,000 shares of PepGen Inc. common stock.
The transaction is scheduled for September 26, 2025, at a price of $3.20 per share, totaling $30,000,000.
Following this acquisition, the reporting persons will beneficially own a total of 20,064,545 shares of PepGen Inc. common stock.
The acquisition was made pursuant to a Rule 10b5-1(c) trading plan.
RA Capital Management, L.P. and its related entities are 10% owners and have representation on PepGen Inc.'s board of directors, including Joshua Resnick, Peter Kolchinsky, and Rajeev Shah.

Sentiment

Score: 8

Explanation: The substantial investment by a key institutional shareholder and director group, RA Capital, signals strong confidence in PepGen Inc. and provides a significant capital injection. The pre-planned nature of the transaction further reinforces a positive outlook, despite the unusual future transaction date.

Positives

Significant investment by a major institutional investor (RA Capital Management, L.P.) signals strong confidence in PepGen Inc.'s future prospects.
The acquisition of 9,375,000 shares represents a substantial increase in RA Capital's stake, reinforcing its commitment to the company.
The transaction was executed under a Rule 10b5-1(c) plan, indicating a pre-planned and strategic investment decision.

Future Outlook

The filing indicates a pre-planned acquisition set for September 26, 2025, suggesting a long-term strategic investment by RA Capital Management, L.P. in PepGen Inc.

Management Comments

RA Capital Management, L.P. is the investment manager for the Fund, RA Capital Nexus Fund II, L.P., and a separately managed account.
The Adviser, the Adviser GP, the Fund, the Nexus Fund II, Dr. Kolchinsky, and Mr. Shah disclaim beneficial ownership of any of the reported securities, except to the extent of its or his respective pecuniary interest therein.
Joshua Resnick, a Partner of the Adviser, serves on the Issuer's board of directors.

Industry Context

This significant investment by a specialized healthcare fund like RA Capital Management in PepGen Inc., a biotechnology company, reflects continued institutional interest and capital allocation towards the life sciences sector. Such large-scale purchases by existing 10% owners and board members often signal strong internal conviction regarding a company's pipeline or strategic direction within the competitive biotech landscape.

Related Party Transactions

RA Capital Management, L.P., an existing 10% owner and entity with board representation (Joshua Resnick, Peter Kolchinsky, Rajeev Shah), acquired additional shares from PepGen Inc.
This transaction involves entities and individuals with significant influence and ownership in the issuer.

Stakeholder Impact

Shareholders: Existing shareholders may see increased confidence due to a major institutional investor increasing its stake. If the shares were newly issued, it would result in dilution, but also provide capital to the company.
Company (PepGen Inc.): Receives a significant capital infusion of $30,000,000, strengthening its financial position for operations, research, and development.

Key Dates

Date	Description
09/26/2025	Date of common stock acquisition by RA Capital Management, L.P. and affiliates.
09/30/2025	Signature date for Peter Kolchinsky, Manager of RA Capital Management, L.P.
09/30/2025	Signature date for Peter Kolchinsky, Manager of RA Capital Healthcare Fund GP, LLC.
09/30/2025	Signature date for Peter Kolchinsky, Manager of RA Capital Nexus Fund II GP, LLC.
09/30/2025	Signature date for Peter Kolchinsky, individually.
09/30/2025	Signature date for Rajeev Shah, individually.

Recommendation

buy

The substantial $30 million investment by RA Capital Management, a sophisticated institutional investor with board representation, signals strong conviction in PepGen Inc.'s prospects. This significant capital infusion strengthens the company's financial position and suggests a positive outlook from a well-informed insider, making the stock an attractive 'buy' for investors seeking growth in the biotechnology sector.

Keywords

PepGen Inc., PEPG, RA Capital Management, Insider Trading, Form 4, Beneficial Ownership, Institutional Investment, Biotechnology, Equity Acquisition, Rule 10b5-1

Disclaimer:The information provided here is for general informational purposes only and does not constitute financial advice, recommendation, or endorsement of any kind. It may contain errors or omissions. You should not rely on this information to make financial decisions. Always seek the advice of a qualified financial professional before making any investment or financial decisions. Use of this information is at your own risk.