Insider sale at Affiliated Managers Group (NYSE: AMG) — 8,000 shares, $2.29M

Rhea-AI Filing Summary

Affiliated Managers Group reporting a Form 144 notice of securities to be sold by an affiliate; the filing lists multiple stock awards by grant date and shows a reported sale of 8,000 shares of common stock on 03/06/2026 for $2,290,383.20.

The filing names Thomas Wojcik (Affiliated Managers Group address) as the seller and lists award lots from 08/15/2021 through 03/05/2025 as identified stock awards.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 245 Summer Street Boston MA 02110	46878	13083415.41	26684730	03/09/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/15/2021	Stock Award	Issuer			2306	08/15/2021	Compensation
Common	03/05/2025	Stock Award	Issuer			13622	03/05/2025	Compensation
Common	01/01/2022	Stock Award	Issuer			1916	01/01/2022	Compensation
Common	03/05/2023	Stock Award	Issuer			15595	03/05/2023	Compensation
Common	03/05/2024	Stock Award	Issuer			9306	03/05/2024	Compensation
Common	01/01/2023	Stock Award	Issuer			1253	01/01/2023	Compensation
Common	01/01/2024	Stock Award	Issuer			1243	01/01/2024	Compensation
Common	08/15/2022	Stock Award	Issuer			1637	08/15/2022	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Thomas Wojcik C/O AFFILIATED MANAGERS GROUP, INC. 777 SOUTH FLAGLER DRIVE West Palm Beach FL 33401	Common Stock	03/06/2026	8000	2290383.20

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does AMG's Form 144 disclose about recent insider sales?

It reports a sale of 8,000 shares on 03/06/2026 for $2,290,383.20. The notice names Thomas Wojcik and lists multiple award grant dates and share lot counts associated with compensation awards from 2021–2025.

Who is listed as the selling person in the AMG Form 144?

The filing lists Thomas Wojcik associated with Affiliated Managers Group. The form shows his mailing address at Affiliated Managers Group and ties the 8,000-share sale to that reporting name on 03/06/2026.

What types of securities are described in the AMG Form 144?

Common stock from stock award lots is described. The excerpt lists multiple stock award grant dates and associated share counts (examples include awards dated 08/15/2021, 03/05/2023, and 03/05/2025).

Does the AMG Form 144 show proceeds from the reported sale?

Yes — it shows proceeds of $2,290,383.20 for the 8,000-share sale. That dollar amount appears alongside the 03/06/2026 sale line in the filing excerpt.