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GOSS

Gossamer Bio, Inc.

NASDAQ · Healthcare · Biotechnology · US

$10.73
−10.13%
Ask drillr
0
Insider buys (3m)
0
Insider sells (3m)
$0.00
Net value (3m)
-6.8%
Price return (3m)
Form 4 filings
DateInsiderActivitySharesPrice
Aug 26, 2026Giraudo Bryan · officer: COO/CFOA-Award25$0.00
Aug 26, 2026Giraudo Bryan · officer: COO/CFOA-Award5,800,051$0.17
Aug 26, 2026Hasnain Faheem · director, officer: President & CEOA-Award166$0.00
Aug 26, 2026Hasnain Faheem · director, officer: President & CEOA-Award5,800,051$0.17
Aug 26, 2026Christian Waage · officer: EVP, Tech Ops and AdminA-Award2,900,026$0.17
Aug 26, 2026Peterson Caryn · officer: Chief Development OfficerA-Award5,800,051$0.17
Aug 26, 2026Smith Robert Paul JR · officer: Chief Commercial OfficerA-Award5,800,051$0.17
Jun 5, 2026Cox Russell J. · directorA-Award115,000$0.18
Jun 5, 2026Milligan Sandra · directorA-Award115,000$0.18
Jun 5, 2026Nathan Steven D · directorA-Award115,000$0.18
Jun 5, 2026Quisel John D · directorA-Award115,000$0.18
Jun 5, 2026Drynan Skye · directorA-Award115,000$0.18
Jun 5, 2026Daniel Thomas O · directorA-Award115,000$0.18
Mar 20, 2026Aranda Richard · officer: Chief Medical OfficerA-Award157,500$0.45
Mar 20, 2026Aranda Richard · officer: Chief Medical OfficerA-Award487,500$0.45
Mar 20, 2026Aranda Richard · officer: Chief Medical OfficerA-Award572,000$0.45
Mar 20, 2026Aranda Richard · officer: Chief Medical OfficerA-Award562,500$0.45
Mar 20, 2026Giraudo Bryan · officer: COO/CFOA-Award176,667$0.45
Mar 20, 2026Giraudo Bryan · officer: COO/CFOA-Award211,500$0.45
Mar 20, 2026Giraudo Bryan · officer: COO/CFOA-Award181,250$0.45
Mar 20, 2026Giraudo Bryan · officer: COO/CFOA-Award543,750$0.45
Mar 20, 2026Giraudo Bryan · officer: COO/CFOA-Award638,000$0.45
Mar 20, 2026Giraudo Bryan · officer: COO/CFOA-Award693,750$0.45
Mar 20, 2026Hasnain Faheem · director, officer: President & CEOA-Award43,500$0.45
Mar 20, 2026Hasnain Faheem · director, officer: President & CEOA-Award47,000$0.45
Mar 20, 2026Hasnain Faheem · director, officer: President & CEOA-Award325,000$0.45
Mar 20, 2026Hasnain Faheem · director, officer: President & CEOA-Award650,000$0.45
Mar 20, 2026Hasnain Faheem · director, officer: President & CEOA-Award544,500$0.45
Mar 20, 2026Hasnain Faheem · director, officer: President & CEOA-Award437,500$0.45
Mar 20, 2026Hasnain Faheem · director, officer: President & CEOA-Award1,312,500$0.45
Institutional positioning

13F filings over the trailing two quarters

New 77Increased 130Reduced 105Sold out 48
FilerActionSharesFiled
D. E. Shaw & Co., Inc.Increased40,959,285Aug 14, 2026
683 Capital Management, LLCIncreased39,198,868Aug 14, 2026
DeepCurrents Investment Group LLCNew Position37,665,073Aug 14, 2026
Context Capital Management, LLCNew Position28,946,459Jul 23, 2026
Worth Venture Partners, LLCNew Position25,017,881Aug 10, 2026
BLACKROCK, INC.Reduced16,826,695May 13, 2026
AQR CAPITAL MANAGEMENT LLCIncreased15,629,993Aug 14, 2026
GSA CAPITAL PARTNERS LLPIncreased14,986,947Aug 6, 2026
WOLVERINE ASSET MANAGEMENT LLCIncreased12,894,746Aug 10, 2026
RENAISSANCE TECHNOLOGIES LLCIncreased11,629,896Aug 13, 2026
Kalehua Capital Management LLCIncreased11,149,363Aug 19, 2026
Kalehua Capital Management LLCNew Position10,236,293May 15, 2026
AQR CAPITAL MANAGEMENT LLCIncreased10,126,897May 15, 2026
VANGUARD CAPITAL MANAGEMENT LLCIncreased9,416,023Aug 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position9,394,593May 15, 2026

Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Aug 26, 2026