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Gossamer Bio, Inc.

GOSS
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001728117

No open-market purchases or sales by Gossamer Bio, Inc. insiders were filed in the last 90 days; 170 institutions reported holding it in 13F filings for Q2 2026, worth $60.8M in total; HHLR Advisors (Hillhouse) is the only superinvestor holding it.

Q3 2023 vs. Q2 2023

How the institutions holding Gossamer Bio, Inc. changed between Q2 2023 and Q3 2023.

All holders in Q3 2023All holders in Q2 2023

13F holders of GOSS: Q2 2023 compared with Q3 2023
MeasureQ2 2023Of which not filed for Q3 2023Q3 2023Change
Holders99196−2
Shares62.0M1.70K205.5M+143.5M (+231.5%)
Value$74.4M$2.00K$171.2M+$96.8M (+130.1%)

1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (32)

Institutions that held Gossamer Bio, Inc. at the end of Q3 2023 but not at the end of Q2 2023.

Institutions new to GOSS in Q3 2023
InstitutionSharesValue% of portfolio
EcoR1 Capital, LLC9,195,404$7.66M0.26%
ARCH Venture Management, LLC8,055,916$6.71M4.36%
Alyeska Investment Group, L.P.6,803,500$5.67M0.04%
Great Point Partners LLC6,230,272$5.19M0.98%
Farallon Capital Management, L.L.C.6,130,272$5.11M0.03%
Samsara BioCapital, LLC6,130,268$5.11M1.56%
Madison Avenue Partners, LP6,130,268$5.11M0.72%
Silverarc Capital Management, LLC6,130,268$5.11M1.90%
Nantahala Capital Management, LLC6,089,471$5.07M0.64%
Monashee Investment Management LLC5,304,212$4.42M1.85%
Armistice Capital, LLC4,956,000$4.13M0.12%
Stonepine Capital Management, LLC3,339,405$2.78M0.92%
Velan Capital Investment Management LP3,065,136$2.55M2.09%
Highbridge Capital Management LLC3,031,306$2.52M0.14%
Weiss Asset Management LP2,000,000$1.67M0.13%
Sphera Funds Management Ltd.1,932,568$1.61M0.39%
683 Capital Management, LLC1,726,139$1.44M0.15%
DAFNA Capital Management LLC1,476,052$1.23M0.38%
CVI Holdings, LLC976,108$812.9K1.61%
Tang Capital Management LLC838,600$698.4K0.10%
AWM Investment Company, Inc.613,028$510.5K0.08%
Kynam Capital Management, LP250,000$208.2K0.03%
Financial Advocates Investment Management72,850$60.7K0.00%
Man Group plc–$51.2K0.00%
Victory Capital Management Inc20,791$17.3K0.00%
ProShare Advisors LLC14,730$12.3K0.00%
waypoint wealth counsel11,458$9.54K0.01%
Two Sigma Securities, LLC10,324$8.60K0.00%
Arcus Capital Partners, LLC10,042$8.36K0.00%
Cetera Investment Advisers10,000$8.33K0.00%
Authentikos Wealth Advisory, LLC150$1250.00%
Capital Advisors, Ltd. LLC208$00.00%

Sold out (34)

Institutions that held Gossamer Bio, Inc. at the end of Q2 2023 and filed for Q3 2023 without it.

Not filed for Q3 2023 yet (1)

Institutions that held Gossamer Bio, Inc. at the end of Q2 2023 and haven't filed a 13F for Q3 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding GOSS in Q2 2023 that haven't filed for Q3 2023
InstitutionShares, Q2 2023Value, Q2 2023
Endurance Wealth Management, Inc.1,700$2.00K