Latest filings (excl ownership)
DEFA14A
Additional proxy soliciting materials
24 Apr 24
DEF 14A
Definitive proxy
24 Apr 24
8-K
Gossamer Bio Announces Appointment of Steven D. Nathan, M.D., and Skye Drynan
12 Mar 24
S-8
Registration of securities for employees
5 Mar 24
10-K
2023 FY
Annual report
5 Mar 24
8-K
Gossamer Bio Announces Fourth Quarter and Full-Year 2023 Financial Results and Provides Business Update
5 Mar 24
8-K
Other Events
4 Mar 24
8-K
Gossamer Bio Announces Appointment of John Quisel, J.D., Ph.D., to its Board of Directors
29 Nov 23
8-K
Departure of Directors or Certain Officers
27 Nov 23
10-Q
2023 Q3
Quarterly report
9 Nov 23
8-K
Gossamer Bio Announces Third Quarter 2023 Financial Results and Provides Business Update
9 Nov 23
8-K
Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard
20 Oct 23
8-K
Departure of Directors or Certain Officers
7 Sep 23
EFFECT
Notice of effectiveness
29 Aug 23
424B3
Prospectus supplement
28 Aug 23
CORRESP
Correspondence with SEC
24 Aug 23
UPLOAD
Letter from SEC
24 Aug 23
S-3
Shelf registration
18 Aug 23
RW
Registration withdrawal request
18 Aug 23
S-3ASR
Automatic shelf registration
17 Aug 23
10-Q
2023 Q2
Quarterly report
8 Aug 23
8-K
Gossamer Bio Announces Second Quarter 2023 Financial Results and Provides Business Update
8 Aug 23
D
$212.10 mm in equity / options, sold $212.10 mm, 70 investors
7 Aug 23
8-K
Gossamer Bio Announces $212 Million Private Placement Financing
20 Jul 23
8-K
Interim TORREY OLE Update and PROSERA Phase 3 Design July 2023
20 Jul 23
8-K
Amendments to Articles of Incorporation or Bylaws
9 Jun 23
DEFA14A
Additional proxy soliciting materials
9 May 23
8-K
Gossamer Bio Announces First Quarter 2023 Financial Results and Provides Business Update
9 May 23
10-Q
2023 Q1
Quarterly report
9 May 23
ARS
2023 FY
Annual report to shareholders
28 Apr 23
DEFA14A
Additional proxy soliciting materials
28 Apr 23
DEF 14A
Definitive proxy
28 Apr 23
PRE 14A
Preliminary proxy
17 Apr 23
8-K
Other Events
3 Apr 23
10-K
2022 FY
Annual report
17 Mar 23
8-K
Gossamer Bio Announces Fourth Quarter and Full-Year 2022 Financial Results and Provides Business Update
17 Mar 23
8-K
Other Events
6 Dec 22
10-Q
2022 Q3
Quarterly report
3 Nov 22
8-K
Gossamer Bio Announces Third Quarter 2022 Financial Results and Provides Business Update
3 Nov 22
8-K
Gossamer Bio Announces Second Quarter 2022 Financial Results and Provides Business Update
9 Aug 22
Latest ownership filings
4
Waage Christian
28 Mar 24
4
Bryan Giraudo
28 Mar 24
4
Faheem Hasnain
28 Mar 24
4
Richard Aranda
19 Mar 24
4
Caryn Peterson
19 Mar 24
4
Skye Drynan
12 Mar 24
4
Steven D Nathan
12 Mar 24
3
Skye Drynan
12 Mar 24
3
Steven D Nathan
12 Mar 24
SC 13G/A
HILLHOUSE INVESTMENT MANAGEMENT, LTD.
14 Feb 24
SC 13G/A
VANGUARD GROUP INC
13 Feb 24
SC 13G/A
ARCH Venture Fund IX, L.P.
9 Feb 24
SC 13G
FMR LLC
9 Feb 24
SC 13G
Artal International S.C.A.
11 Jan 24
SC 13G/A
MILLENNIUM MANAGEMENT LLC
11 Jan 24
4
Caryn Peterson
4 Jan 24
4
Waage Christian
4 Jan 24
4
Richard Aranda
4 Jan 24
4
Bryan Giraudo
4 Jan 24
4
Faheem Hasnain
4 Jan 24
4
Robert Paul Smith JR
5 Dec 23
3
Robert Paul Smith JR
5 Dec 23
4
John D Quisel
29 Nov 23
3
John D Quisel
29 Nov 23
4
Richard Aranda
22 Nov 23
4
Bryan Giraudo
22 Nov 23
4
Caryn Peterson
22 Nov 23
4
Faheem Hasnain
22 Nov 23
4
Waage Christian
22 Nov 23
4
Sandra Milligan
17 Nov 23
4
Bryan Giraudo
14 Nov 23
SC 13D
Growth Equity Opportunities 18 VGE, LLC
28 Jul 23
4
Bryan Giraudo
26 Jul 23
4
Faheem Hasnain
26 Jul 23
4
Waage Christian
26 Jul 23
4
Richard Aranda
26 Jun 23
4
RENEE D GALA
9 Jun 23
4
Russell J. Cox
9 Jun 23
4
Sandra Milligan
9 Jun 23
4
Thomas O Daniel
9 Jun 23