Financial reports
ARS
2023 FY
Annual report to shareholders
29 Mar 24
10-K
2023 FY
Annual report
22 Feb 24
10-Q
2023 Q3
Quarterly report
2 Nov 23
10-Q
2023 Q2
Quarterly report
3 Aug 23
10-Q
2023 Q1
Quarterly report
4 May 23
ARS
2022 FY
Annual report to shareholders
31 Mar 23
10-K
2022 FY
Annual report
28 Feb 23
10-Q
2022 Q3
Quarterly report
3 Nov 22
10-Q
2022 Q2
Quarterly report
8 Aug 22
10-Q
2022 Q1
Quarterly report
5 May 22
Current reports
8-K
Departure of Directors or Certain Officers
21 Feb 24
8-K
Prothena Reports Fourth Quarter and Full Year 2023 Financial Results, and Provides Financial Guidance and Business Highlights
15 Feb 24
8-K
Prothena Provides Updates on PRX012, PRX123, Birtamimab and Portfolio Programs
8 Jan 24
8-K
Prothena Reports Third Quarter 2023 Financial Results and Business Highlights
2 Nov 23
8-K
Prothena Reports Second Quarter 2023 Financial Results and Business Highlights
3 Aug 23
8-K
Entry into a Material Definitive Agreement
10 Jul 23
8-K
Departure of Directors or Certain Officers
19 May 23
8-K
Departure of Directors or Certain Officers
16 May 23
8-K
Prothena Reports First Quarter 2023 Financial Results and Business Highlights
4 May 23
8-K
Departure of Directors or Certain Officers
28 Apr 23
Registration and prospectus
S-3ASR
Automatic shelf registration
22 Feb 24
S-8
Registration of securities for employees
3 Aug 23
424B5
Prospectus supplement for primary offering
16 Dec 22
424B5
Prospectus supplement for primary offering
13 Dec 22
S-8
Registration of securities for employees
10 Aug 22
424B5
Prospectus supplement for primary offering
23 Dec 21
S-8
Registration of securities for employees
6 Aug 21
424B5
Prospectus supplement for primary offering
28 May 21
424B5
Prospectus supplement for primary offering
24 Mar 21
424B5
Prospectus supplement for primary offering
23 Mar 21
Proxies
DEFA14A
Additional proxy soliciting materials
29 Mar 24
DEF 14A
Definitive proxy
29 Mar 24
DEFA14A
Additional proxy soliciting materials
31 Mar 23
DEF 14A
Definitive proxy
31 Mar 23
DEFA14A
Additional proxy soliciting materials
5 May 22
DEFA14A
Additional proxy soliciting materials
25 Apr 22
DEFA14A
Additional proxy soliciting materials
31 Mar 22
DEF 14A
Definitive proxy
31 Mar 22
PRE 14A
Preliminary proxy
11 Mar 22
DEFA14A
Additional proxy soliciting materials
31 Mar 21
Other
UPLOAD
Letter from SEC
23 Aug 23
CORRESP
Correspondence with SEC
4 Aug 23
UPLOAD
Letter from SEC
25 Jul 23
CT ORDER
Confidential treatment order
20 Apr 21
EFFECT
Notice of effectiveness
13 Dec 19
CORRESP
Correspondence with SEC
10 Dec 19
UPLOAD
Letter from SEC
31 Jul 19
CT ORDER
Confidential treatment order
12 Jul 19
CORRESP
Correspondence with SEC
26 Jun 19
CORRESP
Correspondence with SEC
18 Jun 19