Gossamer Bio, Inc. - Common Stock, $0.0001 par value (GOSS)

CUSIP: 38341P102

Q2 2025 13F Holders as of 30 Jun 2025

Security type / class
Equity / Common Stock, $0.0001 par value
Total 13F shares
177,241,575
Total 13F value
$218,003,209
Holder snapshot 6 visible 7 signals
Share change
+7,252,634
Put/Call ratio
4.5%
SEC-reported price per share
$1.23
Number of holders
123
Value change
+$9,779,866
Number of buys
74
Open additional details 1 more signal available
Number of sells
53
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
236,211,947

Security key

38341P102

Report period

Q2 2025

Institutions

123

Top holders

10

GOSS full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2025 Previous quarter: Q1 2025 Gossamer Bio, Inc. SEC filings Gossamer Bio, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of GOSS - Gossamer Bio, Inc. - Common Stock, $0.0001 par value (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Invus Global Management, LLC
Disclosed value leader
Octagon Capital Advisors LP
Comparable rows
15/15
Latest evidence
31 Mar 2025
13D/G 13F Lead comparable stake: 2.8% 13D/G row: Invus Global Management, LLC Showing 1-6 of 15 holder rows.

Quick read

Invus Global Management, LLC leads the comparable SEC ownership view at 2.8%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Invus Global Management, LLC's linked filing trail.
Comparable ownership Top 5
Invus Global Management, LLC 2.8%
Octagon Capital Advisors LP 7.8%
NEA Management Company, LLC 7.7%
VANGUARD GROUP INC 4.3%
ARCH Venture Management, LLC 3.4%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Invus Global Management, LLC
13D/G
Invus Public Equities, L.P.
13D/G
2.8%
$5,507,814
6,258,880 shares
 $0 31 Dec 2024
Octagon Capital Advisors LP
13F
Company
13F
7.8%
$20,185,000
18,350,000 shares
 — 31 Mar 2025
NEA Management Company, LLC
13F
Company
13F
7.7%
$19,902,337
18,093,034 shares
 — 31 Mar 2025
VANGUARD GROUP INC
13F
Company
13F
4.3%
$11,092,269
10,083,881 shares
 — 31 Mar 2025
ARCH Venture Management, LLC
13F
Company
13F
3.4%
$8,780,948
8,055,916 shares
 — 31 Mar 2025
FMR LLC
13F
Company
13F
3.2%
$8,352,278
7,592,980 shares
 — 31 Mar 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
123
Shares
177,241,575
Rows available
123
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q2 2025 vs Q1 2025 Across Filers

Q1 2025 holders
118
Q2 2025 holders
123
Holder diff
5
Investor Q1 2025 Shares Q2 2025 Shares Share Diff Share Chg % Q1 2025 value Q2 2025 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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