F
$ Value
$75K
Shares
37
Price
$2K
Filed
Dec 3
Insider
Name
GAYNER THOMAS SINNICKSON
Title
Chief Executive Officer
CIK
0001159015
Roles
Director
Officer
Transaction Details
Transaction Date
2025-12-02
Code
F
Table
Non-Derivative
Ownership
Direct
Equity Swap
No
Shares After
52,258
Footnotes
Between December 31, 2024 and September 30, 2025, the reporting person acquired 17.338 shares under the MKL 401(k) plan. The information reported herein is based on the plan balance as of September 30, 2025. | Beneficial ownership of securities is expressly disclaimed.
Filing Info
GAYNER THOMAS SINNICKSON's History
| Date | Ticker | Type | Value |
|---|---|---|---|
| 2026-04-01 | KO | A | $290K |
| 2026-02-24 | MKL | A | $0 |
| 2025-12-02 | MKL | F | $75K |
Other Insiders at MKL (90d)
| Insider | Bought | Sold | Last |
|---|---|---|---|
|
GAYNER THOMAS SINNICKSON
Chief Executive Officer
|
— | — | 2026-02-24 |
|
Grinnan Richard Randolph
SVP, Chief Legal Officer & Sec
|
— | — | 2026-02-24 |
|
Costanzo Brian J.
Chief Financial Officer
|
— | — | 2026-03-31 |
|
Crowley Andrew G.
EVP & Pres., Markel Ventures
|
— | — | 2026-03-31 |
|
Grandis Meade P.
CAO and Controller
|
— | — | 2026-02-24 |
|
Wilson Simon
CEO, Markel Insurance
|
— | — | 2026-02-17 |
|
Wilson Simon
EVP and CEO, Markel Insurance
|
— | $208K | 2026-02-26 |