Institutional Ownership
Gossamer Bio Inc
CUSIP 38341P102COMGOSSQ1 2026
Institutional Holders
178
13F filers
Shares Held
156.73M
Aggregate institutional
Institutional Value
$49.03M
Q1 2026
Net New Holders
-14
39 new · 53 closed
Institutional Ownership Trend
Aggregate 13F value by quarter
Multi-quarter trend — upgrade to see history
UpgradePosition Activity
Q1 2026
New positions39
Increased72
Decreased48
Sold out53
Institutional Holders
178 funds hold this security · Q1 2026
| # | Fund | Shares | Value | Δ Shares | Activity |
|---|---|---|---|---|---|
| 1 | Blackrock, Inc. | 16.83M | $5.53M | −230.2K | Reduced |
| 2 | Kalehua Capital Management LLC | 10.24M | $3.36M | +10.24M | New |
| 3 | Aqr Capital Management LLC | 10.13M | $3.33M | +9.01M | Added |
| 4 | Arch Venture Management, LLC | 8.06M | $2.65M | 0 | Held |
| 5 | Octagon Capital Advisors LP | 7.75M | $2.55M | −6.17M | Reduced |
| 6 | Samsara Biocapital, LLC | 7.22M | $2.37M | 0 | Held |
| 7 | Balyasny Asset Management L.P. | 5.92M | $1.95M | +4.41M | Added |
| 8 | Siren, L.L.C. | 5.21M | $1.71M | 0 | Held |
| 9 | 683 Capital Management, LLC | 5.00M | $1.64M | −190.8K | Reduced |
| 10 | Hhlr Advisors, Ltd. | 4.97M | $1.63M | 0 | Held |
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