Gossamer Bio Inc. (goss 5 06/01/27)

13F holders, Q1 2026 (March 31)
1holders
1new positions
1sold out
$0.39avg. 13F price*

At the end of Q1 2026, 1 institutions reported holding Gossamer Bio Inc. (goss 5 06/01/27) in their 13F filings, unchanged from Q4 2025. 1 opened new positions and 1 sold out. The largest holder was Monashee Investment Management LLC ($845K).

Company
Gossamer Bio Inc. (goss 5 06/01/27)
CUSIP
38341PAA0
Latest filing quarter
Q1 2026

History

Number of 13F holders

01 Q1 2024: 1Q1 2024Q2 2024: 1Q2 2024Q3 2024: 1Q3 2024Q4 2024: 1Q4 2024Q1 2025: 1Q1 2025Q2 2025: 1Q2 2025Q3 2025: 1Q3 2025Q4 2025: 1Q4 2025Q1 2026: 1Q1 2026

Total Exit/New Position Q4 2025 → Q1 2026

InstitutionsTotal Value
New Positions1$845K
Exits1$5.5M

All 13F filers, Q4 2025 → Q1 2026: 2,167,000 shares bought and 8,000 shares sold, net +2,159,000 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 1 holders

Monashee Investment Management LLC 0.55% New 2,167,000 $845K

"% of holder's portfolio" is GOSSAMER BIO INC (GOSS 5 06/01/27)'s weight in each manager's 13F, not the share of Gossamer Bio Inc. (goss 5 06/01/27) the manager owns.