Key facts
- This page summarizes Karen L. Alvingham's Form 4 filing for AFFILIATED MANAGERS GROUP, INC. (AMG).
- 3 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 12 Nov 2025, 16:56.
Karen L. Alvingham - 07 Nov 2025 Form 4 Insider Report for AFFILIATED MANAGERS GROUP, INC. (AMG)
- Reporting relationship
- Director
- Issuer ticker
- AMG
- Reported as of
- 07 Nov 2025
- Net transaction value
- -$8,193
- SEC form
- 4
- Accepted by SEC
- 12 Nov 2025, 16:56:54 UTC
- Prior SEC filing
- 18 Aug 2025
- Next SEC filing
- 09 Mar 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Kavita Padiyar, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Karen L. Alvingham filed Form 4 for AFFILIATED MANAGERS GROUP, INC. (AMG) on 12 Nov 2025.
Change
- Previous filing in this sequence was filed on 18 Aug 2025.
- Current net transaction value: -$8,193.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001726148
Primary reporting owner
Alvingham Karen L.
- Relationship
- Director
- Address
- C/O AFFILIATED MANAGERS GROUP, INC., 777 SOUTH FLAGLER DRIVE, WEST PALM BEACH
- Signature
- /s/ Kavita Padiyar, Attorney-in-Fact
- Signature date
- 12 Nov 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
AMG
transaction
Common Stock
Options Exercise
- Transaction value
- $38,993
- Shares
- +560
- Change %
- +4.7%
- Price
- $69.63
- Shares after
- 12,425
- Date
- 07 Nov 2025
- Ownership
- Direct
AMG
transaction
Common Stock
Tax liability
- Transaction value
- $47,185
- Shares
- -182
- Change %
- -1.5%
- Price
- $259.26
- Shares after
- 12,243
- Date
- 07 Nov 2025
- Ownership
- Direct
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
AMG
transaction
Derivative
Director Stock Option (Right to Buy)
Options Exercise
- Transaction value
- $0
- Shares
- -560
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 07 Nov 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 560
- Exercise price
- $69.63
* marks a reported price that did not pass the local price check.