Skip to main content
GOSS logo

GOSS · Gossamer Bio, Inc. · Insider Trading

Track GOSS — free
$9.28 -0.17 (-1.80%) At close · Nov 3 Play latest call Q2 2026 earnings call transcript
Market Cap
$57.75M
Shares
6.11M
Volume · Nov 3 139.45K Avg daily vol (38 sessions) 273.69K

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 4 and 5. Form 3 supplies initial ownership rather than a trade; Form 4 must be filed within two business days of the trade.

Date Insider Type Shares
2026-09-23
Cox Russell J.
Award↑
10,000
2026-09-23
Daniel Thomas O
Award↑
10,000
2026-09-23
Drynan Skye
Award↑
10,000
2026-09-23
Quisel John D
Award↑
10,000
2026-09-23
Milligan Sandra
Award↑
10,000
2026-09-23
Ciongoli Gregory Austin
Award↑
30,000
2026-09-23
Nathan Steven D
Award↑
10,000
2026-08-24
Hasnain Faheem
Award↑
166
2026-08-24
Smith Robert Paul JR
Award↑
5,800,051
2026-08-24
Christian Waage
Award↑
2,900,026
2026-08-24
Giraudo Bryan
Award↑
5,800,051
2026-08-24
Giraudo Bryan
Award↑
25
2026-08-24
Hasnain Faheem
Award↑
5,800,051
2026-08-24
Peterson Caryn
Award↑
5,800,051
2026-06-04
Drynan Skye
Award↑
115,000
2026-06-04
Cox Russell J.
Award↑
115,000
2026-06-04
Nathan Steven D
Award↑
115,000
2026-06-04
Quisel John D
Award↑
115,000
2026-06-04
Daniel Thomas O
Award↑
115,000
2026-06-04
Milligan Sandra
Award↑
115,000
2026-03-19
Aranda Richard
Other↓
9,167
2026-03-19
Hasnain Faheem
Other↓
544,500
2026-03-19
Peterson Caryn
Award↑
18,834
2026-03-19
Giraudo Bryan
Other↓
211,500
2026-03-19
Aranda Richard
Award↑
572,000
2026-03-19
Giraudo Bryan
Other↓
181,250
2026-03-19
Hasnain Faheem
Award↑
650,000
2026-03-19
Aranda Richard
Award↑
157,500
2026-03-19
Peterson Caryn
Award↑
126,667
2026-03-19
Hasnain Faheem
Other↓
43,500
2026-03-19
Aranda Richard
Award↑
9,167
2026-03-19
Hasnain Faheem
Award↑
1,540,000
2026-03-19
Peterson Caryn
Award↑
22,784
2026-03-19
Giraudo Bryan
Award↑
693,750
2026-03-19
Giraudo Bryan
Other↓
638,000
2026-03-19
Aranda Richard
Other↓
126,667
2026-03-19
Giraudo Bryan
Award↑
60,000
2026-03-19
Peterson Caryn
Other↓
126,667
2026-03-19
Aranda Richard
Other↓
157,500
2026-03-19
Christian Waage
Other↓
157,500
2026-03-19
Peterson Caryn
Award↑
157,500
2026-03-19
Hasnain Faheem
Award↑
325,000
2026-03-19
Christian Waage
Other↓
70,000
2026-03-19
Christian Waage
Award↑
125,000
2026-03-19
Hasnain Faheem
Other↓
47,000
2026-03-19
Christian Waage
Award↑
70,000
2026-03-19
Christian Waage
Award↑
47,667
2026-03-19
Giraudo Bryan
Other↓
47,667
2026-03-19
Peterson Caryn
Other↓
157,500
2026-03-19
Christian Waage
Other↓
60,000
Legend Buy — open-market purchase Sell — open-market sale ↑ Shares acquired ↓ Shares disposed (gift, conversion, tax…)
Showing 1–50 of 346 transactions
Key facts CIK 1728117 CUSIP 38341P201 13F (30d) 20 filings 13 filers Visit website Investor relations