13F

Stock

Gossamer Bio, Inc.

GOSS · held by 210 managers

Reported value

$686.2M

Holders

210

+1 new · −0 exited

Holders’ est. mark

$1.31M

Price effect on 7 books still in the name

Largest holder

$56.1M

NEA Management Company, LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
NEA Management Company, LLC18.1M$56.1M—Held
BlackRock, Inc.17.1M$52.9M—Held
Octagon Capital Advisors LP13.9M$43.1M—Held
Vanguard12.9M$39.9M—Held
State Street9.31M$28.9M—Held
ARCH Venture Management, LLC8.06M$25M—Held
Context Capital Management, LLC33.5M$22.7M—Held
SAMSARA BIOCAPITAL, LLC7.22M$22.4M—Held
D. E. Shaw & Co., Inc.30.5M$21.3M—Held
DeepCurrents Investment Group LLC27.9M$18.7M—Held
Rock Springs Capital Management LP12.8M$16.7M—Held
Siren, L.L.C.5.21M$16.1M—Held
683 Capital Management, LLC5.19M$16.1M—Held
UBS Group AG16.8M$15.6M—Held
HHLR ADVISORS, LTD.4.97M$15.4M—Held
GEODE CAPITAL MANAGEMENT, LLC4.87M$15.1M—Held
WOLVERINE ASSET MANAGEMENT LLC22M$14.9M—Held
Shaolin Capital Management LLC21.8M$14.9M—Held
Palo Alto Investors LP4.47M$13.9M—Held
Fidelity4.24M$13.1M—Held
Corient Private Wealth LLC3.85M$11.9M—Held
MILLENNIUM MANAGEMENT LLC3.58M$11.1M—Held
TWO SIGMA INVESTMENTS, LP3.4M$10.5M—Held
PERCEPTIVE ADVISORS LLC3.14M$9.73M—Held
Opaleye Management Inc.2.72M$8.43M—Held
TWO SIGMA ADVISERS, LP2.6M$8.05M—Held
JACOBS LEVY EQUITY MANAGEMENT, INC2.18M$6.75M—Held
SILVERARC CAPITAL MANAGEMENT, LLC2.14M$6.62M—Held
BANK OF AMERICA CORP /DE/1.91M$5.91M$896.1KCut−$1.67M
GOLDMAN SACHS GROUP INC1.79M$5.56M—Held
Alpine Global Management, LLC8K$5.53M—Held
CHARLES SCHWAB INVESTMENT MANAGEMENT INC1.69M$5.23M—Held
MB Generational Wealth, LLC1.61M$4.98M—Held
Balyasny Asset Management L.P.1.52M$4.7M—Held
NORTHERN TRUST CORP1.42M$4.39M—Held
WHITEBOX ADVISORS LLC6.5M$4.39M—Held
Monashee Investment Management LLC2.87M$4.38M—Held
ADVENT CAPITAL MANAGEMENT /DE/6M$4.1M—Held
DEUTSCHE BANK AG\1.28M$3.98M—Held
Icahn Capital1.12M$3.47M—Held
Walleye Capital LLC1.08M$3.34M—Held
Integral Health Asset Management, LLC1M$3.1M—Held
AGF MANAGEMENT LTD4.25M$2.87M—Held
MORGAN STANLEY918.9K$2.85M$266.2KAdded$1.36M
Alyeska Investment Group, L.P.909.1K$2.82M—Held
CAPSTONE INVESTMENT ADVISORS, LLC4M$2.72M—Held
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP750.3K$2.33M—Held
Citadel704.8K$2.18M—Held
HIGHBRIDGE CAPITAL MANAGEMENT LLC3M$2.07M—Held
Renaissance Technologies658.9K$2.04M—Held
Hennion & Walsh Asset Management, Inc.653K$2.02M—Held
WELLINGTON MANAGEMENT GROUP LLP601.3K$1.86M—Held
BARCLAYS PLC576.5K$1.79M$127.7KAdded$1.07M
PLATINUM INVESTMENT MANAGEMENT LTD562K$1.74M—Held
Qube Research & Technologies Ltd540.6K$1.68M—Held
Connor, Clark & Lunn Investment Management Ltd.528.1K$1.64M—Held
SILVERBACK ASSET MANAGEMENT LLC500K$1.55M—Held
Invesco Ltd.478.9K$1.48M—Held
XTX Topco Ltd456.3K$1.41M—Held
Exome Asset Management LLC451.7K$1.4M—Held
Bank of New York Mellon Corp447.9K$1.39M—Held
JPMORGAN CHASE & CO428.9K$1.33M—Held
WELLS FARGO & COMPANY/MN361.9K$1.12M—Held
LPL Financial LLC358.9K$1.11M—Held
Rafferty Asset Management, LLC312.8K$969.7K—Held
Monaco Asset Management SAM309.2K$958.6K—Held
Nuveen, LLC308.5K$956.4K—Held
MACKENZIE FINANCIAL CORP306.5K$954.3K—Held
SMITH, MOORE & CO.280K$868K—Held
Informed Momentum Co LLC278.4K$863.1K—Held
Jain Global LLC278.2K$862.4K—Held
SEI INVESTMENTS CO228.9K$709.6K—Held
Squarepoint Ops LLC221.6K$686.9K—Held
RHUMBLINE ADVISERS214.9K$666.1K—Held
ADAR1 Capital Management, LLC212.5K$658.8K—Held
Atom Investors LP205.6K$637.5K—Held
Stonepine Capital Management, LLC204.8K$634.8K—Held
ALLIANCEBERNSTEIN L.P.190.2K$589.7K—Held
BRIDGEWAY CAPITAL MANAGEMENT, LLC176K$545.6K—Held
Russell Investments Group, Ltd.171.1K$530.3K—Held
JANE STREET GROUP, LLC155.6K$482.3K—Held
Merit Financial Group, LLC155.2K$481.1K—Held
PANAGORA ASSET MANAGEMENT INC147.3K$456.6K—Held
Birchview Capital, LP138.2K$428.3K—Held
PRELUDE CAPITAL MANAGEMENT, LLC136.2K$422.2K—Held
Brevan Howard Capital Management LP127.3K$394.6K—Held
PROFUND ADVISORS LLC116.5K$361.2K—Held
Susquehanna Portfolio Strategies, LLC111.3K$345.2K—Held
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.107.5K$333.5K—Held
VICTORY CAPITAL MANAGEMENT INC105.6K$327.2K—Held
EntryPoint Capital, LLC105.1K$325.8K—Held
HB Wealth Management, LLC95.9K$297.4K—Held
Lighthouse Investment Partners, LLC92.5K$286.8K—Held
BNP PARIBAS FINANCIAL MARKETS89.5K$277.4K—Held
Sequoia Financial Advisors, LLC88.5K$274.2K—Held
SUSQUEHANNA INTERNATIONAL GROUP, LLP88.5K$274.2K—Held
MetLife Investment Management, LLC85.6K$265.5K—Held
INTECH INVESTMENT MANAGEMENT LLC85.6K$265.3K—Held
VARCOV Co.83.9K$260K—Held
Caprock Group, LLC80K$248K—Held
COMMONWEALTH EQUITY SERVICES, LLC78.8K$244.1K—Held
CHOREO, LLC75.1K$234.3K—Held
Caption Management, LLC75.4K$233.7K—Held
Virtus Investment Advisers, LLC73.9K$229.1K—Held
Velan Capital Investment Management LP70K$217K—Held
HighTower Advisors, LLC66.5K$206.1K—Held
Mariner, LLC64.5K$199.9K—Held
AXQ CAPITAL, LP63.1K$195.7K—Held
Rockefeller Capital Management L.P.60.9K$188.7K—Held
Voleon Capital Management LP60.2K$186.7K—Held
MANUFACTURERS LIFE INSURANCE COMPANY, THE58.4K$181.2K—Held
LAZARD ASSET MANAGEMENT LLC56.7K$175.7K—Held
Police & Firemen's Retirement System of New Jersey51.3K$159.1K—Held
Engineers Gate Manager LP51.1K$158.5K—Held
TUDOR INVESTMENT CORP ET AL50K$155K$23.5KAdded$23.2K
CITIGROUP INC49.2K$152.6K—Held
China Universal Asset Management Co., Ltd.47.7K$147.9K—Held
Creative Planning45.6K$141.4K—Held
ProShare Advisors LLC45.3K$140.5K—Held
NEW YORK STATE COMMON RETIREMENT FUND43.6K$135.2K—Held
LETKO, BROSSEAU & ASSOCIATES INC39.4K$122.1K—Held
PRUDENTIAL FINANCIAL INC37.6K$116.6K—Held
OPPENHEIMER & CO INC37.5K$116.3K—Held
VOYA INVESTMENT MANAGEMENT LLC36.5K$113.2K—Held
Graham Capital Management, L.P.36.5K$113K—Held
Sivia Capital Partners, LLC35K$108.6K—Held
Vickerman Investment Advisors, Inc.34.8K$107.8K—Held
Cetera Investment Advisers34.2K$106.2K—Held
AlphaCore Capital LLC26.4K$100.2K—Held
Cerity Partners LLC31.9K$98.9K—Held
MANGROVE PARTNERS IM, LLC30.7K$95.3K—Held
GERBER, LLC28.2K$87.6K—Held
Caitong International Asset Management Co., Ltd27.1K$84K—Held
TWO SIGMA SECURITIES, LLC27.1K$83.9K—Held
STATE OF WISCONSIN INVESTMENT BOARD26.3K$81.5K—Held
MERCER GLOBAL ADVISORS INC /ADV24K$74.3K—Held
Clearstead Advisors, LLC23.7K$73.4K—Held
DRIVE WEALTH MANAGEMENT, LLC21.3K$66.1K—Held
Evernest Financial Advisors, LLC28.4K$64.2K—Held
Legal & General Group Plc20.3K$62.9K—Held
JONES FINANCIAL COMPANIES LLLP19.8K$61.3K—Held
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC24K$59.3K—Held
Tower Research Capital LLC (TRC)17.2K$53.4K—Held
Vanguard Personalized Indexing Management, LLC16.1K$50K—Held
NOMURA HOLDINGS INC16K$49.6K—Held
Kestra Advisory Services, LLC16K$49.6K—Held
Ameritas Investment Partners, Inc.15.9K$49.2K—Held
XPONANCE LLC14.9K$46.2K—Held
Eaton Financial Holdings Company, LLC14.2K$44K—Held
Hudson Bay Capital Management LP14.2K$44K—New
Gladstone Institutional Advisory LLC14.2K$43.9K—Held
SHERBROOKE PARK ADVISERS LLC13.3K$41.4K—Held
O'SHAUGHNESSY ASSET MANAGEMENT, LLC13.1K$40.6K—Held
CIBC WORLD MARKETS CORP12.7K$39.4K—Held
NEUBERGER BERMAN GROUP LLC12.6K$38.9K—Held
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM11.8K$36.7K—Held
PRINCIPAL FINANCIAL GROUP INC11.4K$35.4K—Held
Mirae Asset Global Investments Co., Ltd.11.2K$34.9K—Held
IEQ CAPITAL, LLC11.2K$34.8K—Held
Beacon Pointe Advisors, LLC11K$34.1K—Held
Curi Capital, LLC10.7K$33.1K—Held
MML INVESTORS SERVICES, LLC10.4K$32.1K—Held
Ciovacco Capital Management LLC10.2K$31.6K—Held
NorthCrest Asset Manangement, LLC11.5K$31.5K—Held
Soltis Investment Advisors LLC10.1K$31.3K—Held
Texas Yale Capital Corp.10K$31K—Held
MMA ASSET MANAGEMENT LLC10K$31K—Held
Rialto Wealth Management, LLC5.75K$17.8K—Held
ROYAL BANK OF CANADA5.49K$17K—Held
GF FUND MANAGEMENT CO. LTD.4.55K$14.1K—Held
ACADIAN ASSET MANAGEMENT LLC4.42M$13.7K—Held
SBI Securities Co., Ltd.4.4K$13.6K—Held
SageView Advisory Group, LLC4.1K$12.7K—Held
OSAIC HOLDINGS, INC.2.48K$7.67K—Held
Essential Partners LLC2.43K$7.54K$694Added$3.65K
Aster Capital Management (DIFC) Ltd2.1K$6.51K—Held
Allworth Financial LP2.01K$6.24K$465Added$3.64K
NISA INVESTMENT ADVISORS, LLC2.01K$6.24K—Held
Sterling Capital Management LLC1.26K$3.92K—Held
Steward Partners Investment Advisory, LLC1K$3.1K—Held
Heritage Wealth Advisors1K$3.1K—Held
HRT FINANCIAL LP956.9K$2.97K—Held
IFP Advisors, Inc945$2.93K$75Added$2.51K
Federation des caisses Desjardins du Quebec750$2.33K—Held
EverSource Wealth Advisors, LLC655$2.03K—Held
GAMMA Investing LLC468$1.45K—Held
Farther Finance Advisors, LLC464$1.44K—Held
True Wealth Design, LLC402$1.25K—Held
ALGERT GLOBAL LLC332.3K$1.03K—Held
Cornerstone Financial Management LLC282$874—Held
ROTHSCHILD INVESTMENT LLC253$784—Held
PNC Financial Services Group, Inc.199$617—Held
PRICE T ROWE ASSOCIATES INC /MD/113.1K$351—Held
MAI Capital Management85$264—Held
Cambridge Investment Research Advisors, Inc.76.9K$239—Held
SG Americas Securities, LLC74.1K$230—Held
SJS Investment Consulting Inc.59$183—Held
GSA CAPITAL PARTNERS LLP51.9K$161—Held
CWM, LLC34K$105—Held
Arax Advisory Partners30$93—Held
Morton Brown Family Wealth, LLC25$78—Held
Janney Montgomery Scott LLC12.7K$39—Held
AMALGAMATED BANK6.04K$19—Held
Daiwa Securities Group Inc.771$2—Held
Capital Advisors, Ltd. LLC17$0—Held

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.