Latest filings (excl ownership)
15-12G
Securities registration termination
18 Mar 24
8-K
Departure of Directors or Certain Officers
12 Mar 24
EFFECT
Notice of effectiveness
11 Mar 24
S-8 POS
Registration of securities for employees (post-effective amendment)
8 Mar 24
S-8 POS
Registration of securities for employees (post-effective amendment)
8 Mar 24
S-8 POS
Registration of securities for employees (post-effective amendment)
8 Mar 24
S-8 POS
Registration of securities for employees (post-effective amendment)
8 Mar 24
S-8 POS
Registration of securities for employees (post-effective amendment)
8 Mar 24
POS AM
Prospectus update (post-effective amendment)
7 Mar 24
25-NSE/A
Exchange delisting (amended)
7 Mar 24
8-K
Termination of a Material Definitive Agreement
7 Mar 24
8-K
Ambrx Shareholders Approve Acquisition by Johnson & Johnson
6 Mar 24
DEFA14A
Additional proxy soliciting materials
23 Feb 24
DEFA14A
Additional proxy soliciting materials
22 Feb 24
8-K
Other Events
22 Feb 24
DFAN14A
Additional proxy materials by non-management
15 Feb 24
DFAN14A
Additional proxy materials by non-management
29 Jan 24
DEFM14A
Proxy related to merger
29 Jan 24
PREM14A
Preliminary proxy related to merger
19 Jan 24
DFAN14A
Additional proxy materials by non-management
9 Jan 24
DFAN14A
Additional proxy materials by non-management
8 Jan 24
DEFA14A
Additional proxy soliciting materials
8 Jan 24
8-K
Ambrx Announces Sale to Johnson & Johnson
8 Jan 24
8-K
Departure of Directors or Certain Officers
1 Dec 23
10-Q
2023 Q3
Quarterly report
13 Nov 23
EFFECT
Notice of effectiveness
3 Nov 23
CORRESP
Correspondence with SEC
1 Nov 23
CORRESP
Correspondence with SEC
25 Oct 23
UPLOAD
Letter from SEC
24 Oct 23
8-K
Other Events
23 Oct 23
S-3
Shelf registration
17 Oct 23
8-K
Other Events
16 Oct 23
S-8
Registration of securities for employees
12 Oct 23
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Oct 23
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Oct 23
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Oct 23
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Oct 23
8-K12G3
Notification of registration of securities
12 Oct 23
EFFECT
Notice of effectiveness
18 Sep 23
424B3
Prospectus supplement
15 Sep 23
Latest ownership filings
4
Kate Hermans
7 Mar 24
4
Janet Loesberg
7 Mar 24
4
Daniel J. O'Connor
7 Mar 24
4
Stephen C. Glover
7 Mar 24
4
Andrew Aromando
7 Mar 24
4
Sonja Nelson
7 Mar 24
4
MARGARET DALESANDRO
7 Mar 24
4
PAUL V MAIER
7 Mar 24
SC 13G/A
Venrock Healthcare Capital Partners III, L.P.
14 Feb 24
SC 13G/A
D. E. SHAW & CO, L.P.
14 Feb 24
SC 13G/A
Paradigm Biocapital Advisors LP
14 Feb 24
SC 13G/A
COMMODORE CAPITAL LP
14 Feb 24
SC 13G/A
Cormorant Asset Management, LP
14 Feb 24
SC 13G/A
Deep Track Capital, LP
14 Feb 24
SC 13G/A
HOPU Reunion Co Ltd
12 Feb 24
SC 13G/A
FMR LLC
9 Feb 24
SC 13G/A
WuXi PharmaTech Healthcare Fund I L.P.
5 Feb 24
144
Notice of proposed sale of securities
26 Dec 23
144
Notice of proposed sale of securities
19 Dec 23
4
Andrew Aromando
11 Dec 23
4
Sonja Nelson
11 Dec 23
4
Daniel J. O'Connor
11 Dec 23
144
Notice of proposed sale of securities
8 Dec 23
144
Notice of proposed sale of securities
5 Dec 23
144
Notice of proposed sale of securities
1 Dec 23
SC 13G
Nextech Crossover I GP S.a r.l.
2 Nov 23
SC 13G
Deep Track Capital, LP
2 Nov 23
144
Notice of proposed sale of securities
1 Nov 23
4
Sonja Nelson
31 Oct 23
4
Daniel J. O'Connor
31 Oct 23
144
Notice of proposed sale of securities
27 Oct 23
4
Bihua Chen
25 Oct 23