John Paulson converts 5,750 RSUs into AAMI common shares

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Acadian Asset Management Inc. director and ten percent owner John Paulson exercised 5,750 restricted stock units into 5,750 shares of common stock on May 14, 2026. The units carried a conversion price of $0.00 per share. Following this equity award vesting and conversion, he directly holds 29,510 common shares.

Insider Trade Summary

5,750 shares exercised/converted

Mixed 2 txns

Insider Paulson John

Role null

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	5,750	$0.00	--
Exercise	Common Stock	5,750	$0.00	--

Holdings After Transaction: Restricted Stock Units — 0 shares (Direct, null); Common Stock — 29,510 shares (Direct, null)

Footnotes (1)

Each restricted stock unit represents a right to receive one share of common stock of Acadian Asset Management Inc. On May 14, 2025, the reporting person was granted 5,750 restricted stock units vesting upon the earlier of May 14, 2026 and the date of the 2026 annual meeting of stockholders of Acadian Asset Management Inc.

Key Figures

RSUs exercised: 5,750 units Shares received: 5,750 shares Conversion price: $0.00 per share +2 more

5 metrics

RSUs exercised 5,750 units Restricted stock units converted to common stock on May 14, 2026

Shares received 5,750 shares Common stock received from RSU conversion

Conversion price $0.00 per share Exercise or conversion of derivative security

Post-transaction holdings 29,510 shares Common stock directly held after transactions

Exercise events 1 transaction Derivative exercise or conversion (code M)

Key Terms

restricted stock unit, derivative security, ten percent owner, transaction code M, +1 more

5 terms

restricted stock unit financial

"Each restricted stock unit represents a right to receive one share of common stock of Acadian Asset Management Inc."

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

ten percent owner financial

"the reporting person is marked as a ten percent owner"

transaction code M financial

"transaction_code: M, described as Exercise or conversion of derivative security"

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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Form 4 Insider Transactions: What Each Field Means →

05/18/2026 - 04:09 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Paulson John

(Last)

(First)

(Middle)

C/O ACADIAN ASSET MANAGEMENT INC.

SUITE 601A

(Street)

BOSTON

MASSACHUSETTS

02109

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Acadian Asset Management Inc. [ AAMI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/14/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	05/14/2026		M		5,750	A	$0	29,510	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units⁽¹⁾	⁽¹⁾	05/14/2026		M			5,750	⁽²⁾	⁽²⁾	Common Stock	5,750	$0	0	D

Explanation of Responses:

1. Each restricted stock unit represents a right to receive one share of common stock of Acadian Asset Management Inc.

2. On May 14, 2025, the reporting person was granted 5,750 restricted stock units vesting upon the earlier of May 14, 2026 and the date of the 2026 annual meeting of stockholders of Acadian Asset Management Inc.

Remarks:

	/s/ Richard J. Hart, By POA for John Paulson	05/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did AAMI director John Paulson report?

John Paulson reported exercising 5,750 restricted stock units into 5,750 shares of Acadian Asset Management Inc. common stock. This was a derivative exercise at a $0.00 conversion price, reflecting the vesting of previously granted equity awards rather than an open-market purchase.

How many Acadian Asset Management (AAMI) shares does John Paulson now hold?

After the reported transactions, John Paulson directly holds 29,510 shares of Acadian Asset Management Inc. common stock. This total reflects the addition of 5,750 shares received from the vesting and conversion of restricted stock units on May 14, 2026.

Were John Paulson’s AAMI transactions open-market buys or equity vesting?

The transactions reflect equity vesting, not open-market buys. Paulson exercised 5,750 restricted stock units into an equal number of common shares at a $0.00 conversion price, classified as an exercise or conversion of a derivative security under transaction code M.

What does transaction code M mean in the AAMI Form 4 filing?

Transaction code M indicates an exercise or conversion of a derivative security. In this AAMI filing, it shows 5,750 restricted stock units were converted into 5,750 common shares, consistent with the vesting of a prior equity grant rather than a market trade.

What are the terms of John Paulson’s 5,750 AAMI restricted stock units?

Each restricted stock unit represents a right to receive one share of Acadian Asset Management Inc. common stock. The grant of 5,750 units was scheduled to vest on the earlier of May 14, 2026, or the date of the 2026 annual meeting of stockholders.