Alvingham Karen L. 4
4 · AFFILIATED MANAGERS GROUP, INC. · Filed Mar 9, 2026
Research Summary
AI-generated summary of this filing
AMG Director Karen Alvingham Exercises 867 Shares; 67 Withheld
What Happened
Karen L. Alvingham, a member of the Board of Directors of Affiliated Managers Group, Inc. (AMG), converted/exercised 867 derivative awards into common shares on March 5, 2026. Of those, 67 shares were automatically surrendered to the company to satisfy tax withholding obligations (67 shares × $299.18 per share = $20,045). In addition, the filing shows grant/acquisition entries for 171 and 98 stock units (awards) at $0.00 per share.
This transaction is primarily the vesting/conversion of previously granted derivative awards (an acquisition for the insider) with a routine share surrender to cover taxes (a non-market disposition), rather than an open‑market sale.
Key Details
- Transaction date: March 5, 2026; Form filed March 9, 2026 (reporting period 2026-03-05).
- Exercised/converted: 867 shares at $0.00 (derivative conversion/exercise).
- Tax withholding: 67 shares surrendered at $299.18/share = $20,045 (code F).
- New awards/grants recorded: 171 and 98 stock units acquired at $0.00.
- Shares owned after transaction: not specified in the provided excerpt (filing notes include previously reported deferred stock units).
- Notable footnotes:
- F1: Vesting reflects awards granted earlier (vesting period 2023–2026).
- F2: Automatic surrender of shares to satisfy tax withholding.
- F3–F5: Includes previously reported deferred stock units and director fee deferrals that convert into stock units; some units vest later (e.g., vest in full on March 5, 2027).
- Filing timeliness: No late‑filing flag indicated in the provided data.
Context
This was essentially a conversion/vesting event (derivative exercise/conversion) with shares withheld to cover taxes — a common, administrative outcome of equity compensation. The presence of newly recorded stock units and deferred stock units indicates ongoing director compensation and deferral arrangements rather than an open‑market purchase or sale that would signal a trading view.
Insider Transaction Report
- Exercise/Conversion
Common Stock
[F1]2026-03-05+867→ 13,110 total - Tax Payment
Common Stock
[F2]2026-03-05$299.18/sh−67$20,045→ 13,043 total - Exercise/Conversion
Stock Units
[F1][F3]2026-03-05−867→ 3,709 total→ Common Stock (867 underlying) - Award
Stock Units
[F4]2026-03-05+171→ 171 total→ Common Stock (171 underlying) - Award
Deferred Stock Units
[F5]2026-03-05+98→ 98 total→ Common Stock (98 underlying)
Footnotes (5)
- [F1]Reflects the vesting of previously reported awards. Awards vest 2023-2026.
- [F2]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.
- [F3]Inclusive of previously reported deferred stock units.
- [F4]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.
- [F5]Reflects cash fees that the director has elected to defer under the Company's deferred compensation plan, which are notionally invested in a measurement fund tracking the Company's common stock during the deferral period. Each deferred stock unit is equal to one share of the Company's common stock, and becomes distributable in common stock upon the reporting person's separation from service as a member of the Board of Directors of the Company.