GOSS

Gossamer Bio INC

-$541.5M

Net Activity

Institutions Holding

191

Popularity Rank

#3011

Avg Weight

0.02%

Total Value

$56.8M

Ownership Trend

191 institutions currently hold GOSS, with 111 net buyers and 111 net sellers this quarter.

Institutional Moves

Institutional Moves (Q1 2026)

Neutral

Based on recent trading activity

Net Selling Institutions

111

Net Buying Institutions

111

Key Holders

View all 191 holding institutions

Quarterly Activity

Recent Activity

+$27.5M

Total Buy Value

$381.5M

Total Sell Value

New buy43
Trim57
Add68
Sold out54

111

Net Buyers

111

Net Sellers

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

No Form 144 planned sale filings in the last 90 days

Beneficial Ownership (13D/13G)

1

Active 5%+ Holders

Data as of 2026-07-01
Reporting PersonTypeFiling Date% of Class
D. E. Shaw Valence Portfolios, L.L.C.13D/A2026-07-018.3%

View all Schedule 13D/13G filings

Material Events (8-K)

2

Filings (14d)

Data as of 2026-07-15
2026-07-15

At a special meeting on July 14, 2026, Gossamer Bio stockholders approved a restated incentive award plan. The plan, which the board had previously conditioned on stockholder approval and the closing of a $200 million convertible note exchange offer, increases the number of shares of common stock available for future grants. The exchange offer closed on June 4.

View Full Filing (SEC EDGAR)

View all Form 8-K filings

FAQ

Who are the top institutional investors holding GOSSAMER BIO INC (GOSS)?
Major stakeholders currently include BlackRock, Inc. ($5.5M), Kalehua Capital Management LLC ($3.4M), Aqr Capital Management LLC ($3.3M). Based on the latest 13F filings, there are a total of 191 tracked investment funds and institutions maintaining positions in GOSS.
What is the overall institutional sentiment toward GOSS recently?
Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $541.5M, driven by 111 managers accumulating shares while 111 reduced their exposure.
Which institutions have been selling or reducing their GOSS positions?
In the latest period, 57 funds trimmed their holdings, and 54 managers completely exited their positions. The aggregate reported sell value was $381.5M.
Are there any notable investors adding GOSS to their portfolios?
Yes, buying activity remains notable. 43 institutions opened new positions in {ticker}, and 68 existing holders added to their shares. The total reported buy value for the quarter amounted to $27.5M.

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