GOSS

Gossamer Bio, Inc.

Insider trading activity for Gossamer Bio, Inc., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 12 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Transaction history

The 100 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Sep 23	Milligan Sandra	Director	AGRANT◆	10,000	—	—	—	Open the original filing on SEC.gov
Sep 23	Daniel Thomas O	Director	AGRANT◆	10,000	—	—	—	Open the original filing on SEC.gov
Sep 23	Ciongoli Gregory Austin	Director	AGRANT◆	30,000	—	—	—	Open the original filing on SEC.gov
Sep 23	Drynan Skye	Director	AGRANT◆	10,000	—	—	—	Open the original filing on SEC.gov
Sep 23	Quisel John D	Director	AGRANT◆	10,000	—	—	—	Open the original filing on SEC.gov
Sep 23	Cox Russell J.	Director	AGRANT◆	10,000	—	—	—	Open the original filing on SEC.gov
Sep 23	Nathan Steven D	Director	AGRANT◆	10,000	—	—	—	Open the original filing on SEC.gov
Aug 24	Peterson Caryn	Chief Development…	AGRANT◆	5.8M	—	—	—	Open the original filing on SEC.gov
Aug 24	Christian Waage	EVP, Tech Ops and Admin	AGRANT◆	2.9M	—	—	—	Open the original filing on SEC.gov
Aug 24	Giraudo Bryan	Coo/cfo	AGRANT◆	5.8M	—	—	—	Open the original filing on SEC.gov
Aug 24	Giraudo Bryan	Coo/cfo	AGRANT◆	25	$1,000.00	$25K	—	Open the original filing on SEC.gov
Aug 24	Smith Robert Paul JR	Chief Commercial Officer	AGRANT◆	5.8M	—	—	—	Open the original filing on SEC.gov
Aug 24	Hasnain Faheem	President & CEO	AGRANT◆	5.8M	—	—	—	Open the original filing on SEC.gov
Aug 24	Hasnain Faheem	President & CEO	AGRANT◆	166	$1,000.00	$166K	—	Open the original filing on SEC.gov
Jun 4	Nathan Steven D	Director	AGRANT◆	115,000	—	—	—	Open the original filing on SEC.gov
Jun 4	Milligan Sandra	Director	AGRANT◆	115,000	—	—	—	Open the original filing on SEC.gov
Jun 4	Quisel John D	Director	AGRANT◆	115,000	—	—	—	Open the original filing on SEC.gov
Jun 4	Drynan Skye	Director	AGRANT◆	115,000	—	—	—	Open the original filing on SEC.gov
Jun 4	Daniel Thomas O	Director	AGRANT◆	115,000	—	—	—	Open the original filing on SEC.gov
Jun 4	Cox Russell J.	Director	AGRANT◆	115,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Smith Robert Paul JR	Chief Commercial Officer	AGRANT◆	572,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Smith Robert Paul JR	Chief Commercial Officer	AGRANT◆	562,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Smith Robert Paul JR	Chief Commercial Officer	DTOISS◆	572,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Smith Robert Paul JR	Chief Commercial Officer	DTOISS◆	562,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	AGRANT◆	32,334	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	AGRANT◆	9,167	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	AGRANT◆	22,784	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	AGRANT◆	18,834	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	AGRANT◆	21,167	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	AGRANT◆	126,667	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	AGRANT◆	157,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	AGRANT◆	157,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	AGRANT◆	125,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	AGRANT◆	375,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	AGRANT◆	440,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	AGRANT◆	506,250	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	DTOISS◆	32,334	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	DTOISS◆	9,167	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	DTOISS◆	22,784	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	DTOISS◆	18,834	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	DTOISS◆	21,167	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	DTOISS◆	126,667	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	DTOISS◆	157,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	DTOISS◆	157,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	DTOISS◆	125,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	DTOISS◆	375,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	DTOISS◆	440,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Peterson Caryn	EVP, Regulatory Affairs	DTOISS◆	506,250	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	AGRANT◆	43,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	AGRANT◆	47,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	AGRANT◆	325,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	AGRANT◆	650,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	AGRANT◆	544,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	AGRANT◆	544,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	AGRANT◆	437,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	AGRANT◆	1.3M	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	AGRANT◆	1.5M	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	AGRANT◆	1.7M	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	DTOISS◆	43,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	DTOISS◆	47,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	DTOISS◆	325,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	DTOISS◆	650,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	DTOISS◆	544,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	DTOISS◆	544,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	DTOISS◆	437,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	DTOISS◆	1.3M	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	DTOISS◆	1.5M	—	—	—	Open the original filing on SEC.gov
Mar 19	Hasnain Faheem	President & CEO	DTOISS◆	1.7M	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	AGRANT◆	96,667	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	AGRANT◆	47,667	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	AGRANT◆	60,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	AGRANT◆	100,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	AGRANT◆	176,667	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	AGRANT◆	211,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	AGRANT◆	211,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	AGRANT◆	181,250	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	AGRANT◆	543,750	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	AGRANT◆	638,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	AGRANT◆	693,750	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	DTOISS◆	96,667	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	DTOISS◆	47,667	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	DTOISS◆	60,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	DTOISS◆	100,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	DTOISS◆	176,667	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	DTOISS◆	211,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	DTOISS◆	211,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	DTOISS◆	181,250	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	DTOISS◆	543,750	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	DTOISS◆	638,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Giraudo Bryan	Coo/cfo	DTOISS◆	693,750	—	—	—	Open the original filing on SEC.gov
Mar 19	Christian Waage	EVP, Tech Ops and Admin	AGRANT◆	70,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Christian Waage	EVP, Tech Ops and Admin	AGRANT◆	47,667	—	—	—	Open the original filing on SEC.gov
Mar 19	Christian Waage	EVP, Tech Ops and Admin	AGRANT◆	60,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Christian Waage	EVP, Tech Ops and Admin	AGRANT◆	126,667	—	—	—	Open the original filing on SEC.gov
Mar 19	Christian Waage	EVP, Tech Ops and Admin	AGRANT◆	157,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Christian Waage	EVP, Tech Ops and Admin	AGRANT◆	157,500	—	—	—	Open the original filing on SEC.gov
Mar 19	Christian Waage	EVP, Tech Ops and Admin	AGRANT◆	125,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Christian Waage	EVP, Tech Ops and Admin	AGRANT◆	375,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Christian Waage	EVP, Tech Ops and Admin	AGRANT◆	440,000	—	—	—	Open the original filing on SEC.gov
Mar 19	Christian Waage	EVP, Tech Ops and Admin	AGRANT◆	506,250	—	—	—	Open the original filing on SEC.gov

AGRANT◆—

Milligan Sandra · DirectorSep 23

10,000 sh

AGRANT◆—

Daniel Thomas O · DirectorSep 23

10,000 sh

AGRANT◆—

Ciongoli Gregory Austin · DirectorSep 23

30,000 sh

AGRANT◆—

Drynan Skye · DirectorSep 23

10,000 sh

AGRANT◆—

Quisel John D · DirectorSep 23

10,000 sh

AGRANT◆—

Cox Russell J. · DirectorSep 23

10,000 sh

AGRANT◆—

Nathan Steven D · DirectorSep 23

10,000 sh

AGRANT◆—

Peterson Caryn · Chief Development…Aug 24

5.8M sh

AGRANT◆—

Christian Waage · EVP, Tech Ops and…Aug 24

2.9M sh

AGRANT◆—

Giraudo Bryan · Coo/cfoAug 24

5.8M sh

AGRANT◆$25K

Giraudo Bryan · Coo/cfoAug 24

25 sh @ $1,000.00

AGRANT◆—

Smith Robert Paul JR · Chief Commercial…Aug 24

5.8M sh

AGRANT◆—

Hasnain Faheem · President & CEOAug 24

5.8M sh

AGRANT◆$166K

Hasnain Faheem · President & CEOAug 24

166 sh @ $1,000.00

AGRANT◆—

Nathan Steven D · DirectorJun 4

115,000 sh

AGRANT◆—

Milligan Sandra · DirectorJun 4

115,000 sh

AGRANT◆—

Quisel John D · DirectorJun 4

115,000 sh

AGRANT◆—

Drynan Skye · DirectorJun 4

115,000 sh

AGRANT◆—

Daniel Thomas O · DirectorJun 4

115,000 sh

AGRANT◆—

Cox Russell J. · DirectorJun 4

115,000 sh

AGRANT◆—

Smith Robert Paul JR · Chief Commercial…Mar 19

572,000 sh

AGRANT◆—

Smith Robert Paul JR · Chief Commercial…Mar 19

562,500 sh

DTOISS◆—

Smith Robert Paul JR · Chief Commercial…Mar 19

572,000 sh

DTOISS◆—

Smith Robert Paul JR · Chief Commercial…Mar 19

562,500 sh

AGRANT◆—

Peterson Caryn · EVP, Regulatory…Mar 19

32,334 sh

AGRANT◆—

Peterson Caryn · EVP, Regulatory…Mar 19

9,167 sh

AGRANT◆—

Peterson Caryn · EVP, Regulatory…Mar 19

22,784 sh

AGRANT◆—

Peterson Caryn · EVP, Regulatory…Mar 19

18,834 sh

AGRANT◆—

Peterson Caryn · EVP, Regulatory…Mar 19

21,167 sh

AGRANT◆—

Peterson Caryn · EVP, Regulatory…Mar 19

126,667 sh

AGRANT◆—

Peterson Caryn · EVP, Regulatory…Mar 19

157,500 sh

AGRANT◆—

Peterson Caryn · EVP, Regulatory…Mar 19

157,500 sh

AGRANT◆—

Peterson Caryn · EVP, Regulatory…Mar 19

125,000 sh

AGRANT◆—

Peterson Caryn · EVP, Regulatory…Mar 19

375,000 sh

AGRANT◆—

Peterson Caryn · EVP, Regulatory…Mar 19

440,000 sh

AGRANT◆—

Peterson Caryn · EVP, Regulatory…Mar 19

506,250 sh

DTOISS◆—

Peterson Caryn · EVP, Regulatory…Mar 19

32,334 sh

DTOISS◆—

Peterson Caryn · EVP, Regulatory…Mar 19

9,167 sh

DTOISS◆—

Peterson Caryn · EVP, Regulatory…Mar 19

22,784 sh

DTOISS◆—

Peterson Caryn · EVP, Regulatory…Mar 19

18,834 sh

DTOISS◆—

Peterson Caryn · EVP, Regulatory…Mar 19

21,167 sh

DTOISS◆—

Peterson Caryn · EVP, Regulatory…Mar 19

126,667 sh

DTOISS◆—

Peterson Caryn · EVP, Regulatory…Mar 19

157,500 sh

DTOISS◆—

Peterson Caryn · EVP, Regulatory…Mar 19

157,500 sh

DTOISS◆—

Peterson Caryn · EVP, Regulatory…Mar 19

125,000 sh

DTOISS◆—

Peterson Caryn · EVP, Regulatory…Mar 19

375,000 sh

DTOISS◆—

Peterson Caryn · EVP, Regulatory…Mar 19

440,000 sh

DTOISS◆—

Peterson Caryn · EVP, Regulatory…Mar 19

506,250 sh

AGRANT◆—

Hasnain Faheem · President & CEOMar 19

43,500 sh

AGRANT◆—

Hasnain Faheem · President & CEOMar 19

47,000 sh

AGRANT◆—

Hasnain Faheem · President & CEOMar 19

325,000 sh

AGRANT◆—

Hasnain Faheem · President & CEOMar 19

650,000 sh

AGRANT◆—

Hasnain Faheem · President & CEOMar 19

544,500 sh

AGRANT◆—

Hasnain Faheem · President & CEOMar 19

544,500 sh

AGRANT◆—

Hasnain Faheem · President & CEOMar 19

437,500 sh

AGRANT◆—

Hasnain Faheem · President & CEOMar 19

1.3M sh

AGRANT◆—

Hasnain Faheem · President & CEOMar 19

1.5M sh

AGRANT◆—

Hasnain Faheem · President & CEOMar 19

1.7M sh

DTOISS◆—

Hasnain Faheem · President & CEOMar 19

43,500 sh

DTOISS◆—

Hasnain Faheem · President & CEOMar 19

47,000 sh

DTOISS◆—

Hasnain Faheem · President & CEOMar 19

325,000 sh

DTOISS◆—

Hasnain Faheem · President & CEOMar 19

650,000 sh

DTOISS◆—

Hasnain Faheem · President & CEOMar 19

544,500 sh

DTOISS◆—

Hasnain Faheem · President & CEOMar 19

544,500 sh

DTOISS◆—

Hasnain Faheem · President & CEOMar 19

437,500 sh

DTOISS◆—

Hasnain Faheem · President & CEOMar 19

1.3M sh

DTOISS◆—

Hasnain Faheem · President & CEOMar 19

1.5M sh

DTOISS◆—

Hasnain Faheem · President & CEOMar 19

1.7M sh

AGRANT◆—

Giraudo Bryan · Coo/cfoMar 19

96,667 sh

AGRANT◆—

Giraudo Bryan · Coo/cfoMar 19

47,667 sh

AGRANT◆—

Giraudo Bryan · Coo/cfoMar 19

60,000 sh

AGRANT◆—

Giraudo Bryan · Coo/cfoMar 19

100,000 sh

AGRANT◆—

Giraudo Bryan · Coo/cfoMar 19

176,667 sh

AGRANT◆—

Giraudo Bryan · Coo/cfoMar 19

211,500 sh

AGRANT◆—

Giraudo Bryan · Coo/cfoMar 19

211,500 sh

AGRANT◆—

Giraudo Bryan · Coo/cfoMar 19

181,250 sh

AGRANT◆—

Giraudo Bryan · Coo/cfoMar 19

543,750 sh

AGRANT◆—

Giraudo Bryan · Coo/cfoMar 19

638,000 sh

AGRANT◆—

Giraudo Bryan · Coo/cfoMar 19

693,750 sh

DTOISS◆—

Giraudo Bryan · Coo/cfoMar 19

96,667 sh

DTOISS◆—

Giraudo Bryan · Coo/cfoMar 19

47,667 sh

DTOISS◆—

Giraudo Bryan · Coo/cfoMar 19

60,000 sh

DTOISS◆—

Giraudo Bryan · Coo/cfoMar 19

100,000 sh

DTOISS◆—

Giraudo Bryan · Coo/cfoMar 19

176,667 sh

DTOISS◆—

Giraudo Bryan · Coo/cfoMar 19

211,500 sh

DTOISS◆—

Giraudo Bryan · Coo/cfoMar 19

211,500 sh

DTOISS◆—

Giraudo Bryan · Coo/cfoMar 19

181,250 sh

DTOISS◆—

Giraudo Bryan · Coo/cfoMar 19

543,750 sh

DTOISS◆—

Giraudo Bryan · Coo/cfoMar 19

638,000 sh

DTOISS◆—

Giraudo Bryan · Coo/cfoMar 19

693,750 sh

AGRANT◆—

Christian Waage · EVP, Tech Ops and…Mar 19

70,000 sh

AGRANT◆—

Christian Waage · EVP, Tech Ops and…Mar 19

47,667 sh

AGRANT◆—

Christian Waage · EVP, Tech Ops and…Mar 19

60,000 sh

AGRANT◆—

Christian Waage · EVP, Tech Ops and…Mar 19

126,667 sh

AGRANT◆—

Christian Waage · EVP, Tech Ops and…Mar 19

157,500 sh

AGRANT◆—

Christian Waage · EVP, Tech Ops and…Mar 19

157,500 sh

AGRANT◆—

Christian Waage · EVP, Tech Ops and…Mar 19

125,000 sh

AGRANT◆—

Christian Waage · EVP, Tech Ops and…Mar 19

375,000 sh

AGRANT◆—

Christian Waage · EVP, Tech Ops and…Mar 19

440,000 sh

AGRANT◆—

Christian Waage · EVP, Tech Ops and…Mar 19

506,250 sh

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

All 43 filings we hold were filed within the two-business-day deadline.

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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