Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell
View the official recordSEC Form 4 — Statement of Changes in Beneficial OwnershipAll the details
Dates, kept separate
Transaction date
Mar 5, 2026
Reporting period
Not applicable
Filed with the SEC
Mar 9, 2026
CEOTax withholding
Context
Classification
tax withholding
Code F — shares delivered to pay exercise price or tax liability
Planned / mechanical clue
Tax mechanics (code F)
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0001004434-26-000031
Filed / recorded
Mar 9, 2026, 10:07 PM UTC
Added to OQRO
Oct 6, 2026, 4:40 PM UTC
Parser
form4-xml-v2
Data quality
Verified: identifiers matched exactly
Issuer
AFFILIATED MANAGERS GROUP, INC.
Issuer CIK
1004434
Ticker
AMG
Reporting person
Jay C. Horgen
Relationship
Director, Officer
Officer title
Chief Executive Officer
Security
Common Stock
Table
Non-derivative (Table I)
Transaction date
Mar 5, 2026
Transaction code
F
Shares / units
18,333
Price per share
$299.18
Acquired / disposed
Disposed (D)
Shares owned after
336,877
Ownership form
Direct
Amendment
No
Footnotes from the filing
Reflects the automatic surrender of shares of common stock to the Company to satisfy tax withholding obligations related to the vesting of the awards described above.