Mark W Begor
CIK 1335111 · CEO · last filed 2026-07-28
"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.
Loading insider history…
Disclosed Exposure
$68.02M
Companies
5
Total Filings
84
Lifetime Open-Market Net
-$123.15M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 2 of 9
84 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-10-29 | EFX | Mixed | −21,433 | -$6.05M | EDGAR |
| 2025-10-27 | EFX | Notice (144) | −49,345 | -$11.40M | EDGAR |
| 2025-07-30 | EFX | Mixed | −20,304 | -$6.31M | EDGAR |
| 2025-07-28 | EFX | Notice (144) | −48,264 | -$11.85M | EDGAR |
| 2025-05-23 | NATL | Exer (M) | +2,690 | $69.9K | EDGAR |
| 2025-05-23 | RJF | Grant (A) | +982 | $0 | EDGAR |
| 2025-04-30 | EFX | Mixed | — | -$1.80M | EDGAR |
| 2025-04-28 | EFX | Notice (144) | −22,160 | -$5.69M | EDGAR |
| 2025-04-02 | NATL | Grant (A) | — | $0 | EDGAR |
| 2025-02-18 | EFX | Mixed | — | -$1.71M | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
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.
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.