Costanzo Brian J.
CIK 0001873434
SVP, Finance, CAO & Controller
Filings
24
Latest May 19, 2026
Issuers covered
1
Showing
24 of 24
Page 1
Track record
Realized signed returns on open-market buys and sales
No scored trades yet for Costanzo Brian J.. Track record appears once open-market purchases or sales reach the +30 day horizon.
Issuers
Companies where Costanzo Brian J. has filed
| Ticker | Issuer | Filings | Last filed |
|---|---|---|---|
| MKL | Markel Group Inc. | 24 | May 19, 2026 |
All filings
24 Form 4 / 4-A filings, newest first
| Filed | Top transaction | Shares | Price | Value | ||
|---|---|---|---|---|---|---|