NASDAQ:GOSS | Insider Transactions | Gossamer Bio, Inc.

GOSS Insider Transactions

92 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–92; provenance stays internal.

GOSS insiders transaction timeline

PurchaseSale
2019-02-12: 3 purchases — Cox Russell J., Christian Waage, Giraudo Bryan2019-05-30: 1 purchase — Giraudo Bryan2019-08-28: 1 sale — Salter-Cid Luisa2019-08-29: 1 sale — Salter-Cid Luisa2019-09-05: 4 sales — Stampacchia Otello, Omega Fund V GP Manager, Ltd., Omega Fund V, L.P. and 1 more2019-09-06: 4 sales — Stampacchia Otello, Omega Fund V GP Manager, Ltd., Omega Fund V, L.P. and 1 more2019-09-10: 4 sales — Stampacchia Otello, Omega Fund V GP Manager, Ltd., Omega Fund V, L.P. and 1 more2019-09-11: 4 sales — Stampacchia Otello, Omega Fund V GP Manager, Ltd., Omega Fund V, L.P. and 1 more2019-09-16: 4 sales — Stampacchia Otello, Omega Fund V GP Manager, Ltd., Omega Fund V, L.P. and 1 more2019-09-17: 4 sales — Stampacchia Otello, Omega Fund V GP Manager, Ltd., Omega Fund V, L.P. and 1 more2019-09-18: 4 sales — Stampacchia Otello, Omega Fund V GP Manager, Ltd., Omega Fund V, L.P. and 1 more2019-09-20: 3 sales — Omega Fund V GP Manager, Ltd., Omega Fund V, L.P., Omega Fund V GP, L.P.2019-09-26: 1 purchase — Giraudo Bryan2019-09-27: 3 purchases — Christian Waage, Hasnain Faheem, Gujrathi Sheila2019-12-27: 1 sale — Dupont Jakob2019-12-30: 1 sale — Dupont Jakob2020-06-23: 1 purchase — Giraudo Bryan2020-10-14: 3 purchases — Christian Waage, Hasnain Faheem, Giraudo Bryan2021-03-23: 3 sales — Salter-Cid Luisa, Giraudo Bryan, Christian Waage2021-10-25: 3 sales — Peterson Caryn, Carter Laura, Aranda Richard2022-03-16: 3 sales — Carter Laura, Peterson Caryn, Aranda Richard2022-03-23: 3 sales — Christian Waage, Hasnain Faheem, Giraudo Bryan2022-05-04: 1 sale — Carter Laura2022-06-22: 1 sale — Aranda Richard2022-07-01: 1 sale — Carter Laura2022-07-15: 4 purchases — Carter Laura, Christian Waage, Giraudo Bryan and 1 more2022-10-24: 4 sales — Carter Laura, Peterson Caryn, Aranda Richard2023-03-16: 3 sales — Carter Laura, Aranda Richard, Peterson Caryn2023-03-20: 3 purchases — Christian Waage, Giraudo Bryan, Hasnain Faheem2023-03-21: 1 purchase — Hasnain Faheem2023-03-22: 1 purchase — Hasnain Faheem2023-04-04: 1 purchase — Giraudo Bryan2023-06-22: 1 sale — Aranda Richard2023-11-13: 1 purchase — Giraudo Bryan2023-11-15: 1 purchase — Milligan Sandra2024-03-18: 2 sales — Aranda Richard, Peterson Caryn2024-03-27: 3 sales — Christian Waage, Giraudo Bryan, Hasnain Faheem2024-06-17: 1 purchase — Smith Robert Paul JR2024-06-18: 1 purchase — Giraudo Bryan2024-06-21: 1 purchase — Hasnain Faheem2024-06-24: 1 sale — Aranda Richard2025-08-19: 1 purchase — Milligan Sandra2019-02-122025-08-19
Insider profileRoleDateTransactionSharesPrice
Milligan SandraDirector2025-08-19Purchase26,050.0$1.92
Aranda RichardChief Medical Officer2024-06-24Sale1,908.0$0.66
Hasnain FaheemPresident & CEO2024-06-21Purchase372,000.0$0.67
Giraudo BryanCOO/CFO2024-06-18Purchase100,000.0$0.59
Smith Robert Paul JRChief Commercial Officer2024-06-17Purchase25,000.0$0.6
Christian WaageEVP, Tech Ops and Admin2024-03-27Sale6,430.0$1.16
Giraudo BryanCOO/CFO2024-03-27Sale6,430.0$1.16
Hasnain FaheemPresident & CEO2024-03-27Sale23,172.0$1.16
Aranda RichardChief Medical Officer2024-03-18Sale4,018.0$1.33
Peterson CarynEVP, Regulatory Affairs2024-03-18Sale4,018.0$1.33
Milligan SandraDirector2023-11-15Purchase32,000.0$0.79
Giraudo BryanCOO/CFO2023-11-13Purchase200,000.0$0.56
Aranda RichardChief Medical Officer2023-06-22Sale1,814.0$1.29
Giraudo BryanCOO/CFO2023-04-04Purchase55,000.0$1.02
Hasnain FaheemPresident & CEO2023-03-22Purchase440,500.0$1.14
Hasnain FaheemPresident & CEO2023-03-21Purchase269,389.0$1.2
Christian WaageEVP, Tech Ops and Admin2023-03-20Purchase18,500.0$1.2
Giraudo BryanCOO/CFO2023-03-20Purchase50,000.0$0.97
Hasnain FaheemPresident & CEO2023-03-20Purchase168,683.0$1.03
Carter LauraChief Scientific Officer2023-03-16Sale6,029.0$1.1
Aranda RichardChief Medical Officer2023-03-16Sale7,563.0$1.1
Peterson CarynEVP, Regulatory Affairs2023-03-16Sale7,564.0$1.1
Carter LauraChief Scientific Officer2022-10-24Sale4,876.0$12.07
Peterson CarynEVP, Regulatory Affairs2022-10-24Sale4,757.0$12.07
Carter LauraChief Scientific Officer2022-10-24Sale4,876.0$12.07
Aranda RichardChief Medical Officer2022-10-24Sale4,757.0$12.07
Carter LauraChief Scientific Officer2022-07-15Purchase6,934.0$7.21
Christian WaageEVP, Tech Ops and Admin2022-07-15Purchase6,934.0$7.21
Giraudo BryanCOO/CFO2022-07-15Purchase13,869.0$7.21
Hasnain FaheemPresident & CEO2022-07-15Purchase138,696.0$7.21
Carter LauraChief Scientific Officer2022-07-01Sale8,808.0$8.25
Aranda RichardChief Medical Officer2022-06-22Sale1,778.0$6.88
Carter LauraChief Scientific Officer2022-05-04Sale1,262.0$7.2
Christian WaageEVP, Tech Ops and Admin2022-03-23Sale10,722.0$8.92
Hasnain FaheemPresident & CEO2022-03-23Sale19,035.0$8.92
Giraudo BryanCOO/CFO2022-03-23Sale10,722.0$8.92
Carter LauraChief Scientific Officer2022-03-16Sale5,002.0$8.28
Peterson CarynEVP, Regulatory Affairs2022-03-16Sale6,279.0$8.28
Aranda RichardChief Medical Officer2022-03-16Sale6,278.0$8.28
Peterson CarynEVP, Regulatory Affairs2021-10-25Sale2,377.0$12.25
Carter LauraChief Scientific Officer2021-10-25Sale2,377.0$12.25
Aranda RichardChief Medical Officer2021-10-25Sale2,377.0$12.25
Salter-Cid LuisaChief Scientific Officer2021-03-23Sale5,491.0$9.48
Giraudo BryanChief Financial Officer2021-03-23Sale5,490.0$9.48
Christian WaageEVP & General Counsel2021-03-23Sale5,490.0$9.48
Christian WaageEVP & General Counsel2020-10-14Purchase2,500.0$9.53
Hasnain FaheemDirector2020-10-14Purchase96,520.0$10.36
Giraudo BryanChief Financial Officer2020-10-14Purchase3,000.0$10.01
Giraudo BryanChief Financial Officer2020-06-23Purchase2,000.0$12.96
Dupont JakobChief Medical Officer2019-12-30Sale40,000.0$15.0
Dupont JakobChief Medical Officer2019-12-27Sale1,994.0$15.81
Christian WaageEVP & General Counsel2019-09-27Purchase1,000.0$16.65
Hasnain FaheemDirector2019-09-27Purchase10,000.0$16.8
Gujrathi SheilaPresident & CEO2019-09-27Purchase10,000.0$16.8
Giraudo BryanChief Financial Officer2019-09-26Purchase1,121.0$16.78
Omega Fund V GP Manager, Ltd.TenPercentOwner2019-09-20Sale183,607.0$21.96
Omega Fund V, L.P.TenPercentOwner2019-09-20Sale183,607.0$21.96
Omega Fund V GP, L.P.TenPercentOwner2019-09-20Sale183,607.0$21.96
Stampacchia OtelloTenPercentOwnerOther2019-09-18Sale45,600.0$21.88
Omega Fund V GP Manager, Ltd.TenPercentOwner2019-09-18Sale45,600.0$21.88
Omega Fund V, L.P.TenPercentOwner2019-09-18Sale45,600.0$21.88
Omega Fund V GP, L.P.TenPercentOwner2019-09-18Sale45,600.0$21.88
Stampacchia OtelloTenPercentOwnerOther2019-09-17Sale23,400.0$21.62
Omega Fund V GP Manager, Ltd.TenPercentOwner2019-09-17Sale23,400.0$21.62
Omega Fund V, L.P.TenPercentOwner2019-09-17Sale23,400.0$21.62
Omega Fund V GP, L.P.TenPercentOwner2019-09-17Sale23,400.0$21.62
Stampacchia OtelloTenPercentOwnerOther2019-09-16Sale13,213.0$21.52
Omega Fund V GP Manager, Ltd.TenPercentOwner2019-09-16Sale13,213.0$21.52
Omega Fund V, L.P.TenPercentOwner2019-09-16Sale13,213.0$21.52
Omega Fund V GP, L.P.TenPercentOwner2019-09-16Sale13,213.0$21.52
Stampacchia OtelloDirector,TenPercentOwner2019-09-11Sale80,403.0$21.31
Omega Fund V GP Manager, Ltd.TenPercentOwner2019-09-11Sale80,403.0$21.31
Omega Fund V, L.P.TenPercentOwner2019-09-11Sale80,403.0$21.31
Omega Fund V GP, L.P.TenPercentOwner2019-09-11Sale80,403.0$21.31
Stampacchia OtelloDirector,TenPercentOwner2019-09-10Sale32,373.0$21.0
Omega Fund V GP Manager, Ltd.TenPercentOwner2019-09-10Sale32,373.0$21.0
Omega Fund V, L.P.TenPercentOwner2019-09-10Sale32,373.0$21.0
Omega Fund V GP, L.P.TenPercentOwner2019-09-10Sale32,373.0$21.0
Stampacchia OtelloDirector,TenPercentOwner2019-09-06Sale8,700.0$21.51
Omega Fund V GP Manager, Ltd.TenPercentOwner2019-09-06Sale8,700.0$21.51
Omega Fund V, L.P.TenPercentOwner2019-09-06Sale8,700.0$21.51
Omega Fund V GP, L.P.TenPercentOwner2019-09-06Sale8,700.0$21.51
Stampacchia OtelloDirector,TenPercentOwner2019-09-05Sale12,704.0$21.6
Omega Fund V GP Manager, Ltd.TenPercentOwner2019-09-05Sale12,704.0$21.6
Omega Fund V, L.P.TenPercentOwner2019-09-05Sale12,704.0$21.6
Omega Fund V GP, L.P.TenPercentOwner2019-09-05Sale12,704.0$21.6
Salter-Cid LuisaChief Scientific Officer2019-08-29Sale26,252.0$20.09
Salter-Cid LuisaChief Scientific Officer2019-08-28Sale23,748.0$19.65
Giraudo BryanChief Financial Officer2019-05-30Purchase1,000.0$18.7
Cox Russell J.Director2019-02-12Purchase7,200.0$16.0
Christian WaageEVP & General Counsel2019-02-12Purchase1,550.0$16.0
Giraudo BryanChief Financial Officer2019-02-12Purchase6,000.0$16.0