Gossamer Bio, Inc. - Common Stock, $0.0001 par value (GOSS)
CUSIP: 38341P102
Q3 2025 13F Holders as of 30 Sep 2025
- Type / Class
- Equity / Common Stock, $0.0001 par value
- Shares outstanding
- 236,211,947
- Total 13F shares
- 180,099,232
- Share change
- +2,781,526
- Total reported value
- $473,650,742
- Put/Call ratio
- 2.6%
- Price per share
- $2.63
- Number of holders
- 162
- Value change
- +$14,481,997
- Number of buys
- 102
- Number of sells
- 59
Quarterly Holders Quick Answers
What is CUSIP 38341P102?
CUSIP 38341P102 identifies GOSS - Gossamer Bio, Inc. - Common Stock, $0.0001 par value in SEC institutional holdings data.
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Recent filing periods for CUSIP 38341P102:
Top shareholders 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. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Octagon Capital Advisors LP |
13F
|
Company |
7.8%
|
18,350,000
|
$22,570,500 | — | 30 Jun 2025 | |
| NEA Management Company, LLC |
13F
|
Company |
7.7%
|
18,093,034
|
$22,254,432 | — | 30 Jun 2025 | |
| BlackRock, Inc. |
13F
|
Company |
5.1%
|
12,142,596
|
$14,935,393 | — | 30 Jun 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
4.8%
|
11,410,792
|
$14,035,274 | — | 30 Jun 2025 | |
| ARCH Venture Management, LLC |
13F
|
Company |
3.4%
|
8,055,916
|
$9,908,777 | — | 30 Jun 2025 | |
| FMR LLC |
13F
|
Company |
3.1%
|
7,315,325
|
$8,997,850 | — | 30 Jun 2025 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
3%
|
7,146,022
|
$8,786,000 | — | 30 Jun 2025 | |
| 683 Capital Management, LLC |
13F
|
Company |
2.7%
|
6,340,000
|
$7,798,200 | — | 30 Jun 2025 | |
| Samsara BioCapital, LLC |
13F
|
Company |
2.6%
|
6,130,268
|
$7,540,230 | — | 30 Jun 2025 | |
| Palo Alto Investors LP |
13F
|
Company |
2.4%
|
5,739,013
|
$7,058,986 | — | 30 Jun 2025 | |
| Siren, L.L.C. |
13F
|
Individual |
2.2%
|
5,208,968
|
$6,407,031 | — | 30 Jun 2025 | |
| SILVERARC CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.2%
|
5,146,782
|
$6,330,542 | — | 30 Jun 2025 | |
| HHLR ADVISORS, LTD. |
13F
|
Company |
2.1%
|
4,974,041
|
$6,118,070 | — | 30 Jun 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.9%
|
4,555,080
|
$5,603,758 | — | 30 Jun 2025 | |
| Invus Global Management, LLC |
13D/G
|
Invus Public Equities, L.P. |
2.8%
|
6,258,880
|
$5,507,814 | $0 | 31 Dec 2024 | |
| Alyeska Investment Group, L.P. |
13F
|
Company |
1.9%
|
4,459,087
|
$5,484,677 | — | 30 Jun 2025 | |
| Corient Private Wealth LLC |
13F
|
Company |
1.6%
|
3,693,683
|
$4,543,231 | — | 30 Jun 2025 | |
| Monaco Asset Management SAM |
13F
|
Company |
1.5%
|
3,550,000
|
$4,366,500 | — | 30 Jun 2025 | |
| Opaleye Management Inc. |
13F
|
Company |
1.5%
|
3,545,000
|
$4,360,350 | — | 30 Jun 2025 | |
| Rock Springs Capital Management LP |
13F
|
Company |
1.4%
|
3,266,960
|
$4,018,361 | — | 30 Jun 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
1.2%
|
2,732,294
|
$3,360,722 | — | 30 Jun 2025 | |
| STATE STREET CORP |
13F
|
Company |
1.1%
|
2,481,406
|
$3,052,129 | — | 30 Jun 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.96%
|
2,261,455
|
$2,781,590 | — | 30 Jun 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.74%
|
1,745,127
|
$2,146,506 | — | 30 Jun 2025 | |
| Eversept Partners, LP |
13F
|
Company |
0.72%
|
1,695,762
|
$2,085,787 | — | 30 Jun 2025 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
0.71%
|
1,672,200
|
$2,056,806 | — | 30 Jun 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.69%
|
1,621,419
|
$1,994,345 | — | 30 Jun 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.64%
|
1,520,126
|
$1,869,755 | — | 30 Jun 2025 | |
| PLATINUM INVESTMENT MANAGEMENT LTD |
13F
|
Company |
0.59%
|
1,383,863
|
$1,702,151 | — | 30 Jun 2025 | |
| Laurion Capital Management LP |
13F
|
Company |
0.57%
|
1,343,772
|
$1,652,840 | — | 30 Jun 2025 | |
| Focus Partners Wealth |
13F
|
Company |
0.49%
|
1,150,000
|
$1,414,500 | — | 30 Jun 2025 | |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
|
Company |
0.47%
|
1,117,972
|
$1,375,106 | — | 30 Jun 2025 | |
| Exome Asset Management LLC |
13F
|
Company |
0.46%
|
1,097,999
|
$1,350,539 | — | 30 Jun 2025 | |
| JACOBS LEVY EQUITY MANAGEMENT, INC |
13F
|
Company |
0.46%
|
1,091,564
|
$1,342,624 | — | 30 Jun 2025 | |
| Schonfeld Strategic Advisors LLC |
13F
|
Company |
0.38%
|
897,388
|
$1,103,785 | — | 30 Jun 2025 | |
| DAFNA Capital Management LLC |
13F
|
Company |
0.36%
|
849,921
|
$1,045,403 | — | 30 Jun 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.35%
|
818,691
|
$1,006,990 | — | 30 Jun 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.32%
|
767,561
|
$944,100 | — | 30 Jun 2025 | |
| GSA CAPITAL PARTNERS LLP |
13F
|
Company |
0.32%
|
760,448
|
$935,000 | — | 30 Jun 2025 | |
| Atom Investors LP |
13F
|
Company |
0.31%
|
730,357
|
$898,339 | — | 30 Jun 2025 | |
| MACKENZIE FINANCIAL CORP |
13F
|
Company |
0.23%
|
553,064
|
$680,269 | — | 30 Jun 2025 | |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.21%
|
497,694
|
$612,164 | — | 30 Jun 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.21%
|
496,248
|
$610,385 | — | 30 Jun 2025 | |
| Woodline Partners LP |
13F
|
Company |
0.21%
|
495,153
|
$609,038 | — | 30 Jun 2025 | |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.21%
|
485,900
|
$597,657 | — | 30 Jun 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.18%
|
434,049
|
$533,880 | — | 30 Jun 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.16%
|
386,708
|
$475,652 | — | 30 Jun 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.16%
|
382,677
|
$470,693 | — | 30 Jun 2025 | |
| PRELUDE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.16%
|
374,169
|
$460,228 | — | 30 Jun 2025 | |
| SILVERBACK ASSET MANAGEMENT LLC |
13F
|
Company |
0.15%
|
350,000
|
$430,500 | — | 30 Jun 2025 |
Institutional Holders of Gossamer Bio, Inc. - Common Stock, $0.0001 par value (GOSS) as of Q3 2025
As of 30 Sep 2025,
Gossamer Bio, Inc. - Common Stock, $0.0001 par value (GOSS) was held by
162 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
180,099,232 shares.
The largest 10 holders included
NEA Management Company, LLC, Octagon Capital Advisors LP, BlackRock, Inc., VANGUARD GROUP INC, ARCH Venture Management, LLC, SAMSARA BIOCAPITAL, LLC, Palo Alto Investors LP, Siren, L.L.C., 683 Capital Management, LLC, and ACADIAN ASSET MANAGEMENT LLC.
This page lists
162
institutional shareholders reporting positions in this security
for the Q3 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
123
Q3 2025 holders
162
Holder diff
39
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 Value $ | Q3 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.