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C
Costanzo Brian J.
Open-market buys
0
$0 total
Open-market sells
0
$0 total
Tracking since
N/A
Activity timeline
No individual transactions on file yet — aggregate totals above are current.
Holdings as last reported
1,634.3 Common Stock in MKL
Held directly · as of 2026-09-30
231.82 Common Stock in MKL
Held indirectly (401(k) Plan) · as of 2026-09-30
Companies touched
MARKEL GROUP INC.
CIK 0001096343
