SCHEDULE: D.E. Shaw Entities Amend Gossamer Bio Schedule 13D
Schedule 13D Amendment
D.E. Shaw entities have filed an amendment to their Schedule 13D regarding Gossamer Bio, Inc., detailing share ownership adjustments and a joint filing agreement.
Summary
- This filing is an amendment to a Schedule 13D for Gossamer Bio, Inc., concerning the beneficial ownership of common stock by various D. E. Shaw entities.
- The amendment details transactions in the issuer's securities by D. E. Shaw Valence Portfolios, L.L.C. and D. E. Shaw & Co., L.L.C. between August 25, 2026, and September 28, 2026.
- It confirms that D. E. Shaw Valence Portfolios, L.L.C. ceased to be the beneficial owner of more than 5 percent of the class of securities on September 24, 2026.
- The filing also includes a Joint Filing Agreement among the reporting persons, dated September 28, 2026.
- The reported share numbers reflect the issuer's 1-for-80 reverse stock split effective September 10, 2026.
Sentiment
Score: 3
Explanation: StockSavvy.ai views this as a neutral filing, primarily administrative, with no significant new financial or strategic information impacting the company's valuation.
Negatives
- D. E. Shaw Valence Portfolios, L.L.C. has fallen below the 5% beneficial ownership threshold, indicating a reduction in their stake.
Future Outlook
No specific future outlook or guidance is provided in this filing, which is primarily administrative.
Industry Context
StockSavvy.ai notes that this filing is an administrative update related to beneficial ownership and does not contain operational or financial performance data for Gossamer Bio, Inc. It reflects changes in the holdings of a significant investment entity.
Stakeholder Impact
- Shareholders may note the reduction in beneficial ownership by D. E. Shaw Valence Portfolios, L.L.C. below the 5% threshold, which could be interpreted in various ways regarding their investment strategy.
Key Dates
| Date | Description |
|---|---|
| 2026-05-18 | Transaction Support Agreement with the Issuer and Form of Voting Agreement filed. |
| 2026-06-05 | Indenture governing Senior Secured First Lien Convertible Notes due 2030 and Purchase Warrant Agreement filed. |
| 2026-06-11 | Initial Schedule 13D filing. |
| 2026-07-01 | Amendment No. 1 to Schedule 13D filed. |
| 2026-07-14 | Shareholder approval of Shareholder Proposals (i) through (iv). |
| 2026-07-24 | Amendment No. 2 to Schedule 13D filed. |
| 2026-08-24 | Amendment No. 3 to Schedule 13D filed. |
| 2026-09-09 | Issuer's Form 8-K filed disclosing Reverse Stock Split. |
| 2026-09-10 | Reverse Stock Split effective at 11:59 p.m. Eastern Time. |
| 2026-09-14 | Date as of which outstanding Common Shares were reported in definitive proxy statement. |
| 2026-09-24 | Date on which Valence ceased to be the beneficial owner of more than 5 percent of the class of securities. |
| 2026-09-28 | Date of the Joint Filing Agreement. |
Keywords
Schedule 13D, Beneficial Ownership, Gossamer Bio, D. E. Shaw, Securities Exchange Act, Joint Filing Agreement, Reverse Stock Split
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