Mark W Begor
CIK 1335111 · CEO · last filed 2026-07-28
Mark W Begor is a CEO who has filed 84 SEC Form 4 insider transactions across 5 companies since 2016. The most recent filing, for EFX, was dated Jul 28, 2026. Across all open-market trades the lifetime net is −$123.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $68.0M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$68.02M
5
84
-$123.15M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| EFX | CEO | 325,243 | $192.10 | $62.48M | -$123.15M | 35 | 2026-07-28 |
| RJF | Director | 2,285 | $177.93 | $406.6K | $0 | 2 | 2026-02-23 |
| NATL | Director | 31,475 | $46.06 | $1.45M | $0 | 7 | 2025-05-23 |
| NCR Voyix Corp (NCR) Delisted | Director | 37,036 | $27.08 | $1.00M | $0 | 21 | 2023-10-03 |
| FICO | Director | 3,174 | $1161.59 | $3.69M | $0 | 5 | 2018-03-22 |
Recent Filings
84 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-07-28 | EFX | Mixed | — | -$2.26M | EDGAR |
| 2026-07-24 | EFX | Notice (144) | −37,791 | -$6.51M | EDGAR |
| 2026-04-28 | EFX | Mixed | — | -$2.27M | EDGAR |
| 2026-04-24 | EFX | Notice (144) | −37,791 | -$6.52M | EDGAR |
| 2026-02-27 | EFX | Grant (A) | +40,955 | $0 | EDGAR |
| 2026-02-23 | RJF | Grant (A) | +1,303 | $0 | EDGAR |
| 2026-02-12 | EFX | Mixed | +31,519 | -$3.74M | EDGAR |
| 2026-02-10 | EFX | Notice (144) | −37,791 | -$7.40M | EDGAR |
| 2026-02-05 | EFX | Mixed | +56,718 | -$421.0K | EDGAR |
| 2026-01-05 | EFX | Tax (F) | −997 | -$216.3K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.