Key facts
- This page summarizes David Christopher Ryan's Form 4 filing for AFFILIATED MANAGERS GROUP, INC. (AMG).
- 3 reported transactions and 2 derivative rows are listed below.
- Accepted by SEC: 09 Mar 2026, 17:41.
David Christopher Ryan - 05 Mar 2026 Form 4 Insider Report for AFFILIATED MANAGERS GROUP, INC. (AMG)
- Reporting relationship
- Director
- Issuer ticker
- AMG
- Reported as of
- 05 Mar 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 09 Mar 2026, 17:41:09 UTC
- Prior SEC filing
- 18 Aug 2025
- Next SEC filing
- 08 May 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
David Christopher Ryan filed Form 4 for AFFILIATED MANAGERS GROUP, INC. (AMG) on 09 Mar 2026.
Change
- Previous filing in this sequence was filed on 18 Aug 2025.
- Current net transaction value: $0.
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 0001725101
Primary reporting owner
Ryan David Christopher
- 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
- 09 Mar 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
AMG
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +867
- Change %
- +24%
- Price
- $0.000000*
- Shares after
- 4,494
- Date
- 05 Mar 2026
- Ownership
- Direct
- Footnotes
- F1
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
AMG
transaction
Derivative
Stock Units
Options Exercise
- Transaction value
- Shares
- -867
- Change %
- -18%
- Price
- $0.000000*
- Shares after
- 3,850
- Date
- 05 Mar 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 867
- Exercise price
- Footnotes
- F1, F2
AMG
transaction
Derivative
Stock Units
Award
- Transaction value
- Shares
- +335
- Change %
- Price
- $0.000000*
- Shares after
- 335
- Date
- 05 Mar 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 335
- Exercise price
- Footnotes
- F3
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 3 footnotes
Footnote F1
Reflects the vesting of previously reported awards. Awards vest 2023-2027.
Footnote F2
Inclusive of previously reported deferred stock units.
Footnote F3
Each stock unit represents a right to receive one share of the Company's common stock upon vesting. The stock units vest in full on March 5, 2027.