Insider · CIK 0001740847

Giraudo Bryan

Reports to the SEC for 2 companies · SAN DIEGO, CA

sec.gov

Transactions

Companies

Filings

CIK

0001740847

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-08-24	GOSSGossamer Bio, Inc. · Pre-Funded Warrant (Right to Buy)A Award	COO/CFO	AAward	+25 sh	$1000.00	+$25K	25
2026-08-24	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+5.8M sh	—	—	5,800,051
2026-05-08	PTGXProtagonist Therapeutics, IncS Sale	Director	SSale	−6,000 sh	$100.00	−$600K	0
2026-05-08	PTGXProtagonist Therapeutics, IncS Sale	Director	SSale	−5,130 sh	$100.00	−$513K	12,695
2026-05-07	PTGXProtagonist Therapeutics, IncM Exercise/Conversion	Director	MExercise/Conversion	+24K sh	$6.45	+$155K	31,825
2026-05-07	PTGXProtagonist Therapeutics, IncM Exercise/Conversion	Director	MExercise/Conversion	+12K sh	$6.98	+$83.8K	43,825
2026-05-07	PTGXProtagonist Therapeutics, IncS Sale	Director	SSale	−36K sh	$100.14	−$3.61M	27,825
2026-05-07	PTGXProtagonist Therapeutics, IncS Sale	Director	SSale	−12K sh	$100.07	−$1.2M	6,000
2026-05-07	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−24K sh	—	—	0
2026-05-07	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−12K sh	—	—	0
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	COO/CFO	DDisposition to Issuer	−694K sh	—	—	0
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	COO/CFO	DDisposition to Issuer	−638K sh	—	—	0
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	COO/CFO	DDisposition to Issuer	−544K sh	—	—	0
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	COO/CFO	DDisposition to Issuer	−181K sh	—	—	0
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	COO/CFO	DDisposition to Issuer	−212K sh	—	—	0
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	COO/CFO	DDisposition to Issuer	−212K sh	—	—	0
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	COO/CFO	DDisposition to Issuer	−177K sh	—	—	0
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	COO/CFO	DDisposition to Issuer	−100K sh	—	—	0
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	COO/CFO	DDisposition to Issuer	−60K sh	—	—	0
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	COO/CFO	DDisposition to Issuer	−47.7K sh	—	—	0
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	COO/CFO	DDisposition to Issuer	−96.7K sh	—	—	0
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+694K sh	—	—	693,750
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+638K sh	—	—	638,000
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+544K sh	—	—	543,750
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+181K sh	—	—	181,250
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+212K sh	—	—	211,500
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+212K sh	—	—	211,500
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+177K sh	—	—	176,667
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+100K sh	—	—	100,000
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+60K sh	—	—	60,000
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+47.7K sh	—	—	47,667
2026-03-19	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+96.7K sh	—	—	96,667
2026-01-02	GOSSGossamer Bio, Inc.A Award	COO/CFO	AAward	+116K sh	—	—	389,737
2026-01-02	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+694K sh	—	—	693,750
2026-01-02	PTGXProtagonist Therapeutics, IncA Award	Director	AAward	+2,695 sh	—	—	17,825
2026-01-02	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)A Award	Director	AAward	+3,762 sh	—	—	3,762
2025-10-01	GOSSGossamer Bio, Inc.A Award	COO/CFO	AAward	+181K sh	—	—	273,987
2025-03-04	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+638K sh	—	—	638,000
2025-01-02	PTGXProtagonist Therapeutics, IncA Award	Director	AAward	+5,130 sh	—	—	15,130
2025-01-02	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)A Award	Director	AAward	+6,584 sh	—	—	6,584
2024-06-18	GOSSGossamer Bio, Inc.P Purchase	COO/CFO	PPurchase	+100K sh	$0.59	+$59.1K	480,010
2024-03-27	GOSSGossamer Bio, Inc.S Sale	COO/CFO	SSale	−6,430 sh	$1.16	−$7,430.508	92,737
2024-01-02	PTGXProtagonist Therapeutics, Inc · Stock Option (right to buy)A Award	Director	AAward	+25.7K sh	—	—	25,700
2024-01-02	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+544K sh	—	—	543,750
2023-11-20	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)A Award	COO/CFO	AAward	+181K sh	—	—	181,250
2023-11-13	GOSSGossamer Bio, Inc.P Purchase	COO/CFO	PPurchase	+200K sh	$0.56	+$113K	380,010
2023-07-24	GOSSGossamer Bio, Inc.A Award	COO/CFO	AAward	+54K sh	$1.82	+$98.3K	180,010
2023-07-24	GOSSGossamer Bio, Inc. · Common StockA Award	COO/CFO	AAward	+13.5K sh	$0.13	+$1,688.125	13,505
2023-05-05	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	COO/CFO	DDisposition to Issuer	−145K sh	—	—	0
2023-05-05	GOSSGossamer Bio, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	COO/CFO	DDisposition to Issuer	−71.5K sh	—	—	0

Recent filings

Accepted (ET)
Aug 264
Giraudo Bryan0001740847-26-000006
SEC(opens sec.gov)
May 114
Giraudo Bryan0001104659-26-058860
SEC(opens sec.gov)
Mar 204
Giraudo Bryan0001740847-26-000004
SEC(opens sec.gov)

Companies

Address

3115 MERRYFIELD ROW, SUITE 120

SAN DIEGO, CA, 92121