Form 4: RA Capital Management Reports Beneficial Ownership Changes in 89bio, Inc.

RA Capital Management and related parties file Form 4, reporting changes in beneficial ownership of 89bio, Inc. stock, including the acquisition of a stock option.

Summary

• RA Capital Management, L.P., along with related entities and individuals, filed a Form 4 with the SEC.
• The filing reports changes in beneficial ownership of 89bio, Inc. [ETNB] securities.
• The reported transaction involves the acquisition of a stock option to purchase 56,400 shares of 89bio, Inc. common stock on February 3, 2025.
• The option has an exercise price of $9.60 and expires on February 3, 2035.
• The option vests in full on February 1, 2026, contingent upon Dr. DiRocco's continued service to the Issuer.
• RA Capital Management, L.P. is the investment manager for RA Capital Healthcare Fund, L.P. and RA Capital Nexus Fund, L.P.
• Dr. Peter Kolchinsky and Mr. Rajeev Shah are managing members of RA Capital Management GP, LLC, the general partner of the Adviser.
• The reporting persons disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest.
• Dr. Derek DiRocco holds the option for the benefit of the Fund and the Nexus Fund and is obligated to turn over any net cash or stock received upon exercise of the option to offset advisory fees.

Sentiment

Score: 5

Explanation: The document is a standard regulatory filing, so the sentiment is neutral.

Industry Context

This filing is a routine disclosure related to changes in beneficial ownership by a major shareholder, RA Capital Management, in 89bio, Inc., a biotechnology company. Such filings are common in the biotech industry, where institutional investors often hold significant stakes.

Stakeholder Impact

• The filing informs shareholders of changes in ownership structure, specifically regarding RA Capital Management's holdings.
• The acquisition of stock options could be viewed positively as it aligns the interests of RA Capital Management with the long-term success of 89bio, Inc.

Key Dates

Keywords

Form 4, beneficial ownership, RA Capital Management, 89bio, Inc., stock option, securities, ETNB