Acadian Asset Management Inc.

Symbol
AAMI on NYSE
Business address
200 State Street, Suite 601 A, Boston, MA, 02109
State of incorporation
DE
Fiscal year end
31 December
Former names
BrightSphere Investment Group Inc. (to 14 Nov 2024)
Get insider transactions for this issuer
Acadian Asset Management Inc. has filed 226 SEC EDGAR filings since 12 Mar 2019

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
8-K Open Document | Data Open Filing 8-K 25 Nov 2025 25 Nov 2025 001-38979
SCHEDULE 13G/A Open Document Open Filing 14 Nov 2025 005-91234
10-Q Open Document | Data Open Filing 10-Q 06 Nov 2025 30 Sep 2025 001-38979
SCHEDULE 13G/A Open Document Open Filing 05 Nov 2025 005-91234
8-K Open Document | Data Open Filing 8-K 30 Oct 2025 28 Oct 2025 001-38979
SCHEDULE 13D/A Open Document Open Filing 05 Sep 2025 005-91234
4 Open Document Open Filing 05 Sep 2025 03 Sep 2025
144 Open Document Open Filing 03 Sep 2025 001-38979
10-Q Open Document | Data Open Filing 10-Q 07 Aug 2025 30 Jun 2025 001-38979
SCHEDULE 13G Open Document Open Filing 06 Aug 2025 005-91234
SCHEDULE 13G Open Document Open Filing 06 Aug 2025 005-91234
8-K Open Document | Data Open Filing 8-K 31 Jul 2025 31 Jul 2025 001-38979
4 Open Document Open Filing FORM 4 10 Jun 2025 10 Jun 2025
3 Open Document Open Filing FORM 3 29 May 2025 19 May 2025
8-K Open Document | Data Open Filing 8-K 16 May 2025 13 May 2025 001-38979
144 Open Document Open Filing 16 May 2025 001-38979
4 Open Document Open Filing FORM 4 15 May 2025 13 May 2025
4 Open Document Open Filing FORM 4 15 May 2025 13 May 2025
4 Open Document Open Filing FORM 4 15 May 2025 13 May 2025
10-Q Open Document | Data Open Filing 10-Q 08 May 2025 31 Mar 2025 001-38979
8-K Open Document | Data Open Filing 8-K 01 May 2025 01 May 2025 001-38979
SCHEDULE 13G/A Open Document Open Filing 29 Apr 2025 005-91234
ARS Open Document Open Filing ARS 31 Mar 2025 31 Dec 2024 001-38979
DEFA14A Open Document Open Filing DEFA14A 31 Mar 2025 001-38979
DEF 14A Open Document | Data Open Filing DEF 14A 31 Mar 2025 13 May 2025 001-38979
10-K Open Document | Data Open Filing 10-K 27 Feb 2025 31 Dec 2024 001-38979
4 Open Document Open Filing FORM 4 19 Feb 2025 14 Feb 2025
4 Open Document Open Filing FORM 4 19 Feb 2025 14 Feb 2025
SCHEDULE 13G/A Open Document Open Filing 14 Feb 2025 005-91234
SCHEDULE 13G Open Document Open Filing 06 Feb 2025 005-91234
8-K Open Document | Data Open Filing 8-K 06 Feb 2025 06 Feb 2025 001-38979
SCHEDULE 13G/A Open Document Open Filing 05 Feb 2025 005-91234
3 Open Document Open Filing FORM 3 06 Jan 2025 01 Jan 2025
8-K Open Document | Data Open Filing 8-K 06 Jan 2025 31 Dec 2024 001-38979
SC 13G Open Document Open Filing 14 Nov 2024 005-91234
144 Open Document Open Filing 14 Nov 2024 001-38979
4 Open Document Open Filing FORM 4 13 Nov 2024 11 Nov 2024
10-Q Open Document | Data Open Filing 10-Q 07 Nov 2024 30 Sep 2024 001-38979
8-K Open Document | Data Open Filing 8-K 31 Oct 2024 31 Oct 2024 001-38979
4 Open Document Open Filing FORM 4 02 Oct 2024 30 Sep 2024
8-K Open Document | Data Open Filing 8-K 01 Oct 2024 30 Sep 2024 001-38979
10-Q Open Document | Data Open Filing 10-Q 08 Aug 2024 30 Jun 2024 001-38979
8-K Open Document | Data Open Filing 8-K 01 Aug 2024 01 Aug 2024 001-38979
8-K Open Document | Data Open Filing 8-K 10 Jun 2024 06 Jun 2024 001-38979
4 Open Document Open Filing FORM 4 10 Jun 2024 06 Jun 2024
4 Open Document Open Filing FORM 4 10 Jun 2024 06 Jun 2024
4 Open Document Open Filing FORM 4 10 Jun 2024 06 Jun 2024
10-Q Open Document | Data Open Filing 10-Q 09 May 2024 31 Mar 2024 001-38979
8-K Open Document | Data Open Filing 8-K 02 May 2024 02 May 2024 001-38979
ARS Open Document Open Filing ARS 25 Apr 2024 31 Dec 2023 001-38979
DEFA14A Open Document Open Filing DEFA14A 25 Apr 2024 001-38979
DEF 14A Open Document | Data Open Filing DEF 14A 25 Apr 2024 06 Jun 2024 001-38979
10-K Open Document | Data Open Filing 10-K 28 Feb 2024 31 Dec 2023 001-38979
4 Open Document Open Filing FORM 4 20 Feb 2024 15 Feb 2024
4 Open Document Open Filing FORM 4 20 Feb 2024 15 Feb 2024
4 Open Document Open Filing FORM 4 15 Feb 2024 13 Feb 2024
144 Open Document Open Filing 14 Feb 2024 001-38979
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 13 Feb 2024 005-91234
SC 13G/A Open Document Open Filing 09 Feb 2024 005-91234
8-K Open Document | Data Open Filing 8-K 01 Feb 2024 01 Feb 2024 001-38979
SC 13G/A Open Document Open Filing 23 Jan 2024 005-91234
8-K Open Document | Data Open Filing 8-K 20 Dec 2023 18 Dec 2023 001-38979
10-Q Open Document | Data Open Filing 10-Q 08 Nov 2023 30 Sep 2023 001-38979
8-K Open Document | Data Open Filing 8-K 02 Nov 2023 02 Nov 2023 001-38979
10-Q Open Document | Data Open Filing 10-Q 08 Aug 2023 30 Jun 2023 001-38979
8-K Open Document | Data Open Filing 8-K 03 Aug 2023 03 Aug 2023 001-38979
8-K Open Document | Data Open Filing 8-K 12 Jun 2023 07 Jun 2023 001-38979
4 Open Document Open Filing FORM 4 09 Jun 2023 07 Jun 2023
4 Open Document Open Filing FORM 4 09 Jun 2023 07 Jun 2023
4 Open Document Open Filing FORM 4 09 Jun 2023 07 Jun 2023
10-Q Open Document | Data Open Filing 10-Q 08 May 2023 31 Mar 2023 001-38979
8-K Open Document | Data Open Filing 8-K 04 May 2023 04 May 2023 001-38979
4 Open Document Open Filing FORM 4 02 May 2023 01 May 2023
ARS Open Document Open Filing ARS 26 Apr 2023 31 Dec 2022 001-38979
DEFA14A Open Document Open Filing DEFA14A 26 Apr 2023 001-38979
DEF 14A Open Document | Data Open Filing DEF 14A 26 Apr 2023 001-38979
4 Open Document Open Filing FORM 4 03 Apr 2023 31 Mar 2023
10-K Open Document | Data Open Filing 10-K 28 Feb 2023 31 Dec 2022 001-38979
4 Open Document Open Filing FORM 4 16 Feb 2023 14 Feb 2023
4 Open Document Open Filing FORM 4 16 Feb 2023 14 Feb 2023
SC 13G Open Document Open Filing SCHEDULE 13G 09 Feb 2023 005-91234
SC 13G Open Document Open Filing 09 Feb 2023 005-91234
8-K Open Document | Data Open Filing 8-K 02 Feb 2023 02 Feb 2023 001-38979
SC 13G/A Open Document Open Filing 26 Jan 2023 005-91234
SC 13G/A Open Document Open Filing 20 Jan 2023 005-91234
10-Q Open Document | Data Open Filing 10-Q 04 Nov 2022 30 Sep 2022 001-38979
8-K Open Document | Data Open Filing 8-K 03 Nov 2022 03 Nov 2022 001-38979
10-Q Open Document | Data Open Filing 10-Q 05 Aug 2022 30 Jun 2022 001-38979
8-K Open Document | Data Open Filing 8-K 28 Jul 2022 28 Jul 2022 001-38979
8-K Open Document | Data Open Filing 8-K 08 Jun 2022 07 Jun 2022 001-38979
4 Open Document Open Filing FORM 4 08 Jun 2022 07 Jun 2022
4 Open Document Open Filing FORM 4 08 Jun 2022 07 Jun 2022
4 Open Document Open Filing FORM 4 09 May 2022 09 May 2022
10-Q Open Document | Data Open Filing 10-Q 09 May 2022 31 Mar 2022 001-38979
8-K Open Document | Data Open Filing 8-K 05 May 2022 05 May 2022 001-38979
DEFA14A Open Document Open Filing DEFA14A 19 Apr 2022 001-38979
DEF 14A Open Document Open Filing DEF 14A 19 Apr 2022 07 Jun 2022 001-38979
SC 13G/A Open Document Open Filing 08 Apr 2022 005-91234
10-K Open Document | Data Open Filing 10-K 28 Feb 2022 31 Dec 2021 001-38979
4 Open Document Open Filing FORM 4 16 Feb 2022 14 Feb 2022
4 Open Document Open Filing FORM 4 16 Feb 2022 14 Feb 2022
4 Open Document Open Filing FORM 4 10 Feb 2022 08 Feb 2022
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 09 Feb 2022 005-91234
SC 13G/A Open Document Open Filing 09 Feb 2022 005-91234
SC 13G/A Open Document Open Filing 03 Feb 2022 005-91234
8-K Open Document | Data Open Filing 8-K 03 Feb 2022 03 Feb 2022 001-38979
25-NSE Open Document Open Filing 20 Jan 2022 001-38979
4/A Open Document Open Filing FORM 4/A 14 Jan 2022 15 Dec 2021
4 Open Document Open Filing FORM 4 03 Jan 2022 31 Dec 2021
4 Open Document Open Filing FORM 4 22 Dec 2021 21 Dec 2021
4 Open Document Open Filing FORM 4 22 Dec 2021 21 Dec 2021
4 Open Document Open Filing 22 Dec 2021 21 Dec 2021
SC 13D/A Open Document Open Filing DECEMBER 22, 2021 22 Dec 2021 005-91234
8-K Open Document | Data Open Filing 8-K 17 Dec 2021 17 Dec 2021 001-38979
4 Open Document Open Filing 10 Dec 2021 08 Dec 2021
SC 13D/A Open Document Open Filing AMENDMENT NO. 4 TO THE SCHEDULE 13D 10 Dec 2021 005-91234
4 Open Document Open Filing FORM 4 09 Dec 2021 07 Dec 2021
4 Open Document Open Filing FORM 4 09 Dec 2021 07 Dec 2021
4 Open Document Open Filing FORM 4 09 Dec 2021 07 Dec 2021
SC TO-I/A Open Document Open Filing SC TO-I/A 09 Dec 2021 005-91234
SC TO-I/A Open Document Open Filing SC TO-I/A 07 Dec 2021 005-91234
4 Open Document Open Filing FORM 4 30 Nov 2021 29 Nov 2021
4 Open Document Open Filing FORM 4 26 Nov 2021 26 Nov 2021
SC TO-I/A Open Document Open Filing SC TO-I/A 08 Nov 2021 005-91234
SC 13D/A Open Document Open Filing AMENDMENT NO. 3 TO THE SCHEDULE 13D 05 Nov 2021 005-91234
10-Q Open Document | Data Open Filing 10-Q 05 Nov 2021 30 Sep 2021 001-38979
SC TO-I Open Document Open Filing SC TO-I 04 Nov 2021 005-91234
SC TO-C Open Document Open Filing SC TO-C 04 Nov 2021 005-91234
8-K Open Document | Data Open Filing FORM 8-K 04 Nov 2021 03 Nov 2021 001-38979
8-K Open Document | Data Open Filing 8-K 28 Oct 2021 28 Oct 2021 001-38979
10-Q Open Document | Data Open Filing 10-Q 09 Aug 2021 30 Jun 2021 001-38979
8-K Open Document | Data Open Filing 8-K 29 Jul 2021 29 Jul 2021 001-38979
8-K Open Document | Data Open Filing 8-K 25 Jun 2021 23 Jun 2021 001-38979
4 Open Document Open Filing FORM 4 25 Jun 2021 23 Jun 2021
4 Open Document Open Filing FORM 4 25 Jun 2021 23 Jun 2021
8-K Open Document | Data Open Filing 8-K 04 Jun 2021 02 Jun 2021 001-38979
8-K Open Document | Data Open Filing 8-K 10 May 2021 09 May 2021 001-38979
10-Q Open Document | Data Open Filing 10-Q 07 May 2021 31 Mar 2021 001-38979
DEFA14A Open Document Open Filing DEFA14A 30 Apr 2021 001-38979
DEF 14A Open Document Open Filing DEF 14A 30 Apr 2021 23 Jun 2021 001-38979
8-K Open Document | Data Open Filing 8-K 29 Apr 2021 29 Apr 2021 001-38979
8-K Open Document | Data Open Filing 8-K 31 Mar 2021 30 Mar 2021 001-38979
10-K Open Document | Data Open Filing 10-K 01 Mar 2021 31 Dec 2020 001-38979
4 Open Document Open Filing FORM 4 17 Feb 2021 14 Feb 2021
4 Open Document Open Filing FORM 4 17 Feb 2021 14 Feb 2021
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 10 Feb 2021 005-91234
SC 13G/A Open Document Open Filing 09 Feb 2021 005-91234
SC 13G/A Open Document Open Filing 08 Feb 2021 005-91234
8-K Open Document | Data Open Filing 8-K 04 Feb 2021 04 Feb 2021 001-38979
SC 13G/A Open Document Open Filing 27 Jan 2021 005-91234
4 Open Document Open Filing FORM 4 22 Dec 2020 21 Dec 2020
4 Open Document Open Filing FORM 4 22 Dec 2020 21 Dec 2020
UPLOAD Open Document Open Filing 17 Dec 2020
CORRESP Open Document Open Filing 11 Dec 2020
UPLOAD Open Document Open Filing 01 Dec 2020
8-K Open Document | Data Open Filing 8-K 17 Nov 2020 17 Nov 2020 001-38979
4 Open Document Open Filing FORM 4 12 Nov 2020 10 Nov 2020
10-Q Open Document | Data Open Filing 10-Q 06 Nov 2020 30 Sep 2020 001-38979
8-K Open Document | Data Open Filing 8-K 29 Oct 2020 29 Oct 2020 001-38979
8-K Open Document | Data Open Filing 8-K 04 Sep 2020 03 Sep 2020 001-38979
10-Q Open Document | Data Open Filing 10-Q 10 Aug 2020 30 Jun 2020 001-38979
SC 13G/A Open Document Open Filing 07 Aug 2020 005-91234
8-K Open Document | Data Open Filing 8-K 06 Aug 2020 06 Aug 2020 001-38979
8-K Open Document | Data Open Filing 8-K 27 Jul 2020 24 Jul 2020 001-38979
4 Open Document Open Filing 26 Jun 2020 24 Jun 2020
4 Open Document Open Filing 26 Jun 2020 24 Jun 2020
4 Open Document Open Filing FORM 4 26 Jun 2020 24 Jun 2020
4 Open Document Open Filing FORM 4 26 Jun 2020 24 Jun 2020
4 Open Document Open Filing FORM 4 26 Jun 2020 24 Jun 2020
4 Open Document Open Filing FORM 4 26 Jun 2020 24 Jun 2020
8-K Open Document | Data Open Filing 8-K 26 Jun 2020 24 Jun 2020 001-38979
DEFA14A Open Document Open Filing DEFA14A 28 May 2020 001-38979
SC 13D/A Open Document Open Filing 21 May 2020 005-91234
10-Q Open Document | Data Open Filing 10-Q 11 May 2020 31 Mar 2020 001-38979
SC 13G/A Open Document Open Filing 11 May 2020 005-91234
8-K Open Document | Data Open Filing 8-K 07 May 2020 07 May 2020 001-38979
DEFA14A Open Document Open Filing DEFA14A 29 Apr 2020 001-38979
DEF 14A Open Document Open Filing DEF 14A 29 Apr 2020 24 Jun 2020 001-38979
3 Open Document Open Filing FORM 3 23 Apr 2020 15 Apr 2020
4 Open Document Open Filing FORM 4 23 Apr 2020 21 Apr 2020
8-K Open Document | Data Open Filing 8-K 16 Apr 2020 15 Apr 2020 001-38979
3 Open Document Open Filing FORM 3 26 Mar 2020 25 Mar 2020
8-K Open Document | Data Open Filing 8-K 06 Mar 2020 02 Mar 2020 001-38979
10-K Open Document | Data Open Filing 10-K 02 Mar 2020 31 Dec 2019 001-38979
4 Open Document Open Filing FORM 4 19 Feb 2020 14 Feb 2020
SC 13G Open Document Open Filing SCHEDULE 13G 11 Feb 2020 005-91234
SC 13G Open Document Open Filing 07 Feb 2020 005-91234
SC 13G Open Document Open Filing 07 Feb 2020 005-91234
8-K Open Document | Data Open Filing 8-K 06 Feb 2020 06 Feb 2020 001-38979
SC 13G Open Document Open Filing 29 Jan 2020 005-91234
4 Open Document Open Filing FORM 4 30 Dec 2019 24 Dec 2019
4 Open Document Open Filing FORM 4 30 Dec 2019 26 Dec 2019
4 Open Document Open Filing FORM 4 23 Dec 2019 20 Dec 2019
8-K Open Document | Data Open Filing 8-K 16 Dec 2019 16 Dec 2019 001-38979
SC 13D/A Open Document Open Filing NOVEMBER 12, 2019 05 Dec 2019 005-91234
10-Q Open Document | Data Open Filing 10-Q 12 Nov 2019 30 Sep 2019 001-38979
S-3ASR Open Document Open Filing S-3ASR 12 Nov 2019 333-234646
8-K Open Document | Data Open Filing 8-K 05 Nov 2019 05 Nov 2019 001-38979
4 Open Document Open Filing FORM 4 19 Sep 2019 19 Sep 2019
4 Open Document Open Filing FORM 4 19 Sep 2019 19 Sep 2019
4 Open Document Open Filing FORM 4 19 Sep 2019 19 Sep 2019
4 Open Document Open Filing FORM 4 19 Sep 2019 19 Sep 2019
8-K Open Document | Data Open Filing 8-K 18 Sep 2019 17 Sep 2019 001-38979
8-K Open Document | Data Open Filing 8-K 21 Aug 2019 20 Aug 2019 001-38979
DEF 14A Open Document Open Filing DEF 14A 16 Aug 2019 17 Sep 2019 001-38979
10-Q Open Document | Data Open Filing 10-Q 09 Aug 2019 30 Jun 2019 001-38979
4 Open Document Open Filing FORM 4 08 Aug 2019 06 Aug 2019
8-K Open Document Open Filing 8-K 01 Aug 2019 01 Aug 2019 001-38979
3 Open Document Open Filing FORM 3 31 Jul 2019 22 Jul 2019
8-K Open Document Open Filing 8-K 24 Jul 2019 22 Jul 2019 001-38979
S-8 Open Document Open Filing S-8 15 Jul 2019 333-232658
8-K Open Document Open Filing 8-K 15 Jul 2019 12 Jul 2019 001-38979
8-K12B Open Document Open Filing 8-K12B 15 Jul 2019 11 Jul 2019 001-38979
424B3 Open Document Open Filing 424B3 03 Jun 2019 333-230202
EFFECT Open Document Open Filing 31 May 2019 333-230202
CORRESP Open Document Open Filing 31 May 2019
S-4/A Open Document Open Filing S-4/A 31 May 2019 333-230202
S-4/A Open Document Open Filing S-4/A 23 May 2019 333-230202
S-4/A Open Document Open Filing S-4/A 15 May 2019 333-230202
CORRESP Open Document Open Filing 14 May 2019
CORRESP Open Document Open Filing 09 May 2019
UPLOAD Open Document Open Filing 01 May 2019
CORRESP Open Document Open Filing 24 Apr 2019
S-4/A Open Document Open Filing S-4/A 24 Apr 2019 333-230202
UPLOAD Open Document Open Filing 10 Apr 2019
S-4 Open Document Open Filing S-4 12 Mar 2019 333-230202