Form 144: Morgan Stanley brokered restricted stock sales

Morgan Stanley Smith Barney LLC filed a Form 144 notice reporting proposed sales of Common stock tied to restricted stock vesting under a registered plan.

Accepted by SEC EDGAR 05/06/2026 - 04:13 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC filed a Form 144 notice reporting proposed sales of Common stock tied to restricted stock vesting under a registered plan. The filing lists multiple vesting dates and share quantities (e.g., 176, 171, 370, 317, 545, 956, 867), and identifies Morgan Stanley Smith Barney LLC as the broker.

Key Figures

Broker identifier: Morgan Stanley Smith Barney LLC Vesting 08/15/2022: 176 shares Vesting 03/05/2023: 171 shares +5 more

8 metrics

Broker identifier Morgan Stanley Smith Barney LLC listed as broker on the Form 144 cover line

Vesting 08/15/2022 176 shares Restricted stock vesting under a registered plan

Vesting 03/05/2023 171 shares Restricted stock vesting under a registered plan

Vesting 08/15/2023 370 shares Restricted stock vesting under a registered plan

Vesting 03/05/2024 317 shares Restricted stock vesting under a registered plan

Vesting 08/15/2024 545 shares Restricted stock vesting under a registered plan

Vesting 03/05/2025 956 shares Restricted stock vesting under a registered plan

Vesting 03/05/2026 867 shares Restricted stock vesting under a registered plan

Key Terms

Restricted stock vesting, Form 144, Issuer

3 terms

Restricted stock vesting financial

"Restricted stock vesting under a registered plan"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Form 144 regulatory

"Filer Information | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Issuer regulatory

"Restricted stock vesting under a registered plan | Issuer"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does AMG's Form 144 filing with Morgan Stanley indicate?

It indicates proposed sales of Common stock tied to restricted stock vesting. The filing lists vesting dates and specific share amounts for sale under a registered plan, and names Morgan Stanley Smith Barney LLC as the broker handling the transactions.

Which vesting dates and share amounts are listed in the Form 144 filing?

The filing lists multiple vesting dates and quantities. Examples include 08/15/2022 (176 shares), 03/05/2023 (171 shares), 08/15/2023 (370 shares), 03/05/2024 (317 shares), 08/15/2024 (545 shares), 03/05/2025 (956 shares), and 03/05/2026 (867 shares).

Who is the broker named in the AMG Form 144 filing?

The broker named is Morgan Stanley Smith Barney LLC. The filing lists the broker's address as 1 New York Plaza, 8th Floor, New York, NY, which is provided alongside the proposed sales data.

Does the Form 144 filing state whether these are issuer-received shares or resale?

The filing describes the transactions as tied to restricted stock vesting under a registered plan and labels the role as Issuer for those entries, indicating the shares arise from vesting under the issuer's registered plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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	0001725101
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	AFFILIATED MANAGERS GROUP, INC.
SEC File Number	001-13459
Address of Issuer	777 South Flagler Drive West Palm Beach FLORIDA 33401
Phone	800-345-1100
Name of Person for Whose Account the Securities are To Be Sold	DAVID RYAN
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	Director

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	3402	1037804.93	26684730	05/06/2026	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	08/15/2022	Restricted stock vesting under a registered plan	Issuer			176	08/15/2022	Not Applicable
Common	03/05/2023	Restricted stock vesting under a registered plan	Issuer			171	03/05/2023	Not Applicable
Common	08/15/2023	Restricted stock vesting under a registered plan	Issuer			370	08/15/2023	Not Applicable
Common	03/05/2024	Restricted stock vesting under a registered plan	Issuer			317	03/05/2024	Not Applicable
Common	08/15/2024	Restricted stock vesting under a registered plan	Issuer			545	08/15/2024	Not Applicable
Common	03/05/2025	Restricted stock vesting under a registered plan	Issuer			956	03/05/2025	Not Applicable
Common	03/05/2026	Restricted stock vesting under a registered plan	Issuer			867	03/05/2026	Not Applicable

* 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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	05/06/2026
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	/s/ David C Ryan
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)