Acadian Asset Management Inc. (AAMI) Insider Ownership

Historic Insider Ownership Trends

Data spanning the past 90 days through February 19, 2026 reveals that Acadian Asset Management's three principal insider shareholders consist of TenPercentOwner & Co. Inc. Paulson (7.74Mn shares), President And Ceo Suren Rana (371.73K shares), Clo And Cao Richard Jonathan Hart (165.96K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
& Co. Inc. Paulson 7,743,282 05 Sep, 2025
Suren Rana President And Ceo 371,726 02 Oct, 2024
Richard Jonathan Hart Clo And Cao 165,958 19 Feb, 2025
Robert J Chersi 37,384 10 Jun, 2025
Barbara Trebbi 35,771 12 Feb, 2026
John Paulson 23,760 15 May, 2025
Christina Wiater Pfo / Pao 19,125 19 Feb, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
11 Feb, 2026 Robert J Chersi Common Stock D 28,753 $51.30 37,384 I S
10 Feb, 2026 Barbara Trebbi Common Stock D 9,691 $51.22 35,771 D S
03 Sep, 2025 & Co. Inc. Paulson Common Stock, par value $0.001 D 1,206,839 $47.69 7,743,282 I S
03 Sep, 2025 & Co. Inc. Paulson - - 7,743,282 I
10 Jun, 2025 Robert J Chersi - - 66,137 I
10 Jun, 2025 Robert J Chersi Common Stock A 27,986 $0.00 66,137 I G
10 Jun, 2025 Robert J Chersi Common Stock D 27,986 $0.00 0 D G
13 May, 2025 John Paulson Common Stock A 7,764 $0.00 23,760 D M
13 May, 2025 Robert J Chersi Common Stock A 4,437 $0.00 27,986 D M
13 May, 2025 Barbara Trebbi Common Stock A 4,437 $0.00 45,462 D M
13 May, 2025 Barbara Trebbi - - 45,462 D
15 Feb, 2025 Christina Wiater Common Stock D 1,521 $25.69 19,125 D F
15 Feb, 2025 Christina Wiater - - 19,125 D
15 Feb, 2025 Christina Wiater Common Stock A 5,180 $0.00 20,646 D M
15 Feb, 2025 Christina Wiater - - 20,646 D
15 Feb, 2025 Richard Jonathan Hart Common Stock D 5,944 $25.69 165,958 D F
15 Feb, 2025 Richard Jonathan Hart Common Stock A 16,124 $0.00 171,902 D M
11 Nov, 2024 Richard Jonathan Hart Common Stock D 70,000 $28.52 155,778 D S
11 Nov, 2024 Richard Jonathan Hart Common Stock A 90,000 $12.00 160,009 D M
11 Nov, 2024 Richard Jonathan Hart Common Stock D 246,646 $29.25 225,778 D F