STOCK TITAN

AMG (NYSE: AMG) CEO sells 17,500 shares after 75K option exercise

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

AFFILIATED MANAGERS GROUP, INC. President and CEO Jay C. Horgen exercised employee stock options for 75,000 shares of common stock at a strike price of $74.49 per share. These options were labeled as an Employee Stock Option (Right to Buy) and are now fully exercised.

Of the acquired shares, 39,671 were used to satisfy tax obligations at a price of $336.62 per share, and 17,500 shares were sold in an open-market transaction at a weighted average price of $338.27 per share. Following these transactions, Horgen directly holds 204,706 common shares, with additional indirect holdings reported as 350,000 shares through grantor retained annuity trusts and 34,058 shares through family trusts.

Positive

  • None.

Negative

  • None.
Insider Horgen Jay C.
Role President and CEO
Sold 17,500 shs ($5.92M)
Type Security Shares Price Value
Exercise Employee Stock Option (Right to Buy) 75,000 $0.00 --
Exercise Common Stock 75,000 $74.49 $5.59M
Tax Withholding Common Stock 39,671 $336.62 $13.35M
Sale Common Stock 17,500 $338.27 $5.92M
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Employee Stock Option (Right to Buy) — 0 shares (Direct, null); Common Stock — 261,877 shares (Direct, null); Common Stock — 34,058 shares (Indirect, By Family Trusts)
Footnotes (1)
  1. Reflects the transfer of 150,000 shares of common stock to a grantor retained annuity trust. The price reflects the weighted average sales price of the shares sold; the individual transaction prices ranged from $336.33 to $341.88. Specific transaction details will be provided to the SEC upon request.
Options exercised 75,000 shares Employee Stock Option (Right to Buy) exercised at $74.49
Option exercise price $74.49/share Exercise price for 75,000 common shares
Shares sold 17,500 shares Open-market sale of common stock on 2026-06-08
Sale price (weighted avg) $338.27/share Weighted average sales price; trades from $336.33 to $341.88
Tax-withheld shares 39,671 shares Shares delivered for tax liability at $336.62/share
Direct holdings after 204,706 shares Common stock directly held following reported transactions
GRAT holdings 350,000 shares Common stock held indirectly by grantor retained annuity trusts
Family trust holdings 34,058 shares Common stock held indirectly by family trusts
Employee Stock Option (Right to Buy) financial
"security_title": "Employee Stock Option (Right to Buy)""
grantor retained annuity trust financial
"Reflects the transfer of 150,000 shares of common stock to a grantor retained annuity trust."
A grantor retained annuity trust (GRAT) is an estate-planning tool where the person who creates the trust transfers assets into it but receives fixed cash payments (an annuity) from the trust for a set number of years; whatever remains after that term passes to designated beneficiaries. It matters to investors because it can shift future appreciation of assets out of the creator’s taxable estate—like putting an asset into a timed vending machine that pays you fixed amounts while any extra value that grows inside the machine goes to heirs with reduced gift or estate tax consequences.
weighted average sales price financial
"The price reflects the weighted average sales price of the shares sold; the individual transaction prices ranged"
tax-withholding disposition financial
"transaction_action": "tax-withholding disposition""
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
indirect ownership financial
"ownership_type": "indirect", "nature_of_ownership": "By GRATs""
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SEC Form 4
FORM 4UNITED 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*
Horgen Jay C.

(Last)(First)(Middle)
C/O AFFILIATED MANAGERS GROUP, INC.
1001 U.S. HIGHWAY ONE NORTH

(Street)
JUPITER FLORIDA 33477

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
AFFILIATED MANAGERS GROUP, INC. [ AMG ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
President and CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/08/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock06/08/2026M75,000A$74.49261,877(1)D
Common Stock06/08/2026F39,671D$336.62222,206D
Common Stock06/08/2026S17,500D$338.27(2)204,706D
Common Stock34,058IBy Family Trusts
Common Stock350,000(1)IBy GRATs
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Employee Stock Option (Right to Buy)$74.4906/08/2026M75,00008/15/202408/15/2026Common Stock75,000$00D
Explanation of Responses:
1. Reflects the transfer of 150,000 shares of common stock to a grantor retained annuity trust.
2. The price reflects the weighted average sales price of the shares sold; the individual transaction prices ranged from $336.33 to $341.88. Specific transaction details will be provided to the SEC upon request.
/s/ Kavita Padiyar, Attorney-in-Fact06/08/2026
** Signature of Reporting PersonDate
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)

FAQ

What did AMG CEO Jay C. Horgen do in this Form 4 filing?

Jay C. Horgen exercised options for 75,000 AMG common shares at $74.49 each, then had 39,671 shares withheld for taxes and sold 17,500 shares at a weighted average of $338.27 per share, while retaining a substantial direct and indirect share position.

How many AMG shares did Jay C. Horgen sell in this transaction?

He sold 17,500 AMG common shares in an open-market transaction at a weighted average price of $338.27 per share. The filing notes individual sale prices ranged from $336.33 to $341.88, with full transaction details available to the SEC upon request.

How many AMG options did Jay C. Horgen exercise and at what price?

He exercised employee stock options covering 75,000 AMG common shares at an exercise price of $74.49 per share. The related option position, labeled as an Employee Stock Option (Right to Buy), shows zero remaining derivative shares following this exercise in the filing data.

How many AMG shares does Jay C. Horgen hold after these transactions?

After the reported transactions, he directly holds 204,706 AMG common shares. The filing also reports indirect holdings of 350,000 shares held by grantor retained annuity trusts and 34,058 shares held by family trusts, reflecting additional positions associated with him through these entities.

What portion of Jay C. Horgen’s AMG shares were used for tax withholding?

The filing shows a tax-withholding disposition of 39,671 AMG common shares at $336.62 per share. This F-code transaction represents shares withheld to cover tax obligations related to the option exercise, rather than an open-market sale initiated for investment reasons.

What does the transfer to a grantor retained annuity trust mean for AMG shares?

A footnote explains a transfer of 150,000 AMG common shares to a grantor retained annuity trust. This reflects movement of shares into an estate-planning vehicle, with 350,000 shares now reported as indirectly held through such trusts, rather than a traditional market purchase or sale.