§ BIOTECHNOLOGY
USD · BiotechnologyGOSS
GOSSAMER BIO INC
USDSector · BiotechnologyBeta · 2.02
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
92 increased/new, 51 decreased/exited (13F)
AC 13F Analysis
§ 04 · FUNDAMENTALS · THE BOOKS
| P/B | 6.95 | EPS (TTM) | -0.78 |
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| BlackRock, Inc. | 16.8M | 0.0% | −1% |
| Kalehua Capital Management LLC | 10.2M | n/a | n/a |
| AQR Capital Management | 10.1M | 0.0% | +805% |
| VANGUARD CAPITAL MANAGEMENT LLC | 9.4M | n/a | n/a |
| ARCH Venture Management, LLC | 8.1M | 0.4% | ±0% |
| Octagon Capital Advisors LP | 7.8M | 0.3% | −44% |
◇ AC INTELLIGENCE
Top institutional owners for GOSS as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER160.6% · 140 holders
PASSIVE / INDEX29.1% · 9 holders
DEALER / BANK21.3% · 18 holders
TACTICAL / MACRO8.0% · 4 holders
SYSTEMATIC / QUANT6.0% · 4 holders
QUALITY / COMPOUNDER3.6% · 8 holders
INCOME / DEFENSIVE2.3% · 7 holders
ACTIVIST0.5% · 1 holder
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for GOSS in the last 180 days.
§ 08 · COVERAGE · OUR RECENT NOTES
No notes mention GOSS yet.