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Acadian Asset Management Inc. (AAMI)

Acadian Asset Management Inc. (AAMI) Insider Trading

Directors, officers and holders of more than 10% of AAMI report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 56 transactions on file: 0 with code P, 10 with code S and 40 with other codes.

DateInsiderCodeShares
Aug 4, 2026Wiater ChristinaS Sale244
Aug 3, 2026Wiater ChristinaS Sale3
Aug 3, 2026Wiater ChristinaS Sale7,978
Aug 3, 2026Wiater ChristinaS Sale17,389
Jun 17, 2026PAULSON & CO. INC.S Sale1,900,000
Jun 15, 2026Trebbi BarbaraG Gift10,260
Jun 15, 2026Trebbi BarbaraG Gift10,260
Jun 12, 2026Trebbi BarbaraA Award1,288
Jun 12, 2026Paulson JohnA Award2,253
Jun 12, 2026Chersi Robert JA Award1,288
May 14, 2026Paulson JohnM Exercise5,750
May 14, 2026Chersi Robert JM Exercise3,286
May 14, 2026Trebbi BarbaraM Exercise3,286
May 14, 2026Chersi Robert JM Exercise3,286
May 14, 2026Trebbi BarbaraM Exercise3,286
May 14, 2026Paulson JohnM Exercise5,750
May 4, 2026Hart Richard JonathanS Sale88,792
May 4, 2026Hart Richard JonathanS Sale11,208
Feb 15, 2026Wiater ChristinaM Exercise5,180
Feb 15, 2026Wiater ChristinaM Exercise5,180
Feb 15, 2026Hart Richard JonathanF Tax Payment4,618
Feb 15, 2026Hart Richard JonathanM Exercise9,550
Feb 15, 2026Hart Richard JonathanM Exercise9,550
Feb 15, 2026Wiater ChristinaF Tax Payment1,521
Feb 14, 2026Wiater ChristinaM Exercise4,006
Feb 14, 2026Wiater ChristinaF Tax Payment1,176
Feb 14, 2026Hart Richard JonathanM Exercise5,755
Feb 14, 2026Hart Richard JonathanF Tax Payment2,782
Feb 14, 2026Wiater ChristinaM Exercise4,006
Feb 14, 2026Hart Richard JonathanM Exercise5,755
Feb 13, 2026Hynes ScottA Award4,888
Feb 13, 2026Young KellyA Award48,748
Feb 13, 2026Hart Richard JonathanA Award21,602
Feb 13, 2026Wiater ChristinaA Award5,407
Feb 11, 2026Chersi Robert JS Sale28,753
Feb 10, 2026Trebbi BarbaraS Sale9,691
Sep 3, 2025PAULSON & CO. INC.S Sale1,206,839
Jun 10, 2025Chersi Robert JG Gift27,986
Jun 10, 2025Chersi Robert JG Gift27,986
May 14, 2025Chersi Robert JA Award3,286
May 14, 2025Paulson JohnA Award5,750
May 14, 2025Trebbi BarbaraA Award3,286
May 13, 2025Paulson JohnM Exercise7,764
May 13, 2025Trebbi BarbaraM Exercise4,437
May 13, 2025Chersi Robert JM Exercise4,437
May 13, 2025Chersi Robert JM Exercise4,437
May 13, 2025Trebbi BarbaraM Exercise4,437
May 13, 2025Paulson JohnM Exercise7,764
Feb 15, 2025Wiater ChristinaM Exercise5,180
Feb 15, 2025Wiater ChristinaF Tax Payment1,521

The full Form 4 history is on the AAMI company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.