Dorfman Mark
Officer · DRS
As of 2026-09-16, Dorfman Mark has 39 Form 4 transactions on record across 1 company — 20 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in September in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $1.1M
- Indirect $0
| DRS | direct | 29,271 sh | $1.1M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-04 | DRS | Sale | 7,471 @ $37.01 | $277K | −20.3% of holding | 29,271 | Form 4 |
| 2026-06-04 | DRS | Sale | 5,536 @ $45.75 | $253K | −13.1% of holding | 36,742 | Form 4 |
| 2026-04-02 | DRS | Sale | 4,659 @ $45.38 | $211K | −9.9% of holding | 42,278 | Form 4 |
| 2026-03-16 | DRS | Sale | 10,014 @ $45.27 | $453K | −36.2% of holding | 17,666 | Form 4 |
| 2026-01-05 | DRS | Sale | 7,680 @ $37.00 | $284K | −21.7% of holding | 27,680 | Form 4 |
| 2025-12-01 | DRS | Sale | 3,840 @ $33.74 | $130K | −9.8% of holding | 35,360 | Form 4 |
| 2025-09-12 | DRS | Sale | 8,534 @ $41.65 | $355K | −17.9% of holding | 39,200 | Form 4 |
| 2025-09-12 | DRS | Sale | 4,267 @ $41.65 | $178K | −8.2% of holding | 47,734 | Form 4 |
| 2025-03-18 | DRS | Sale | 20,034 @ $32.69 | $655K | −30.4% of holding | 45,786 | Form 4 |
30 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-04-09 | DRS | Award / grant | 7,359 | 7,359 | Form 4 |
| 2026-04-01 | DRS | Withheld for tax | 9,956 | 31,077 | Form 4 |
| 2026-04-01 | DRS | Withheld for tax | 7,684 | 39,057 | Form 4 |
| 2026-04-01 | DRS | Withheld for tax | 3,558 | 42,751 | Form 4 |
| 2026-04-01 | DRS | Withheld for tax | 2,340 | 45,181 | Form 4 |
| 2026-04-01 | DRS | Withheld for tax | 1,692 | 46,937 | Form 4 |
| 2026-04-01 | DRS | Option exercise | 3,448 | 48,629 | Form 4 |
| 2026-04-01 | DRS | Award / grant | 23,367 | 41,033 | Form 4 |
| 2026-04-01 | DRS | Option exercise | 4,770 | 47,521 | Form 4 |
| 2026-04-01 | DRS | Option exercise | 7,252 | 0 | Form 4 |
| 2026-04-01 | DRS | Option exercise | 7,252 | 46,309 | Form 4 |
| 2026-04-01 | DRS | Option exercise | 4,770 | 4,772 | Form 4 |
| 2026-04-01 | DRS | Award / grant | 15,664 | 46,741 | Form 4 |
| 2026-04-01 | DRS | Option exercise | 3,448 | 6,896 | Form 4 |
| 2025-04-03 | DRS | Award / grant | 10,344 | 10,344 | Form 4 |
| 2025-04-01 | DRS | Withheld for tax | 3,503 | 49,535 | Form 4 |
| 2025-04-01 | DRS | Withheld for tax | 2,304 | 52,001 | Form 4 |
| 2025-04-01 | DRS | Option exercise | 7,252 | 53,038 | Form 4 |
| 2025-04-01 | DRS | Option exercise | 7,252 | 7,252 | Form 4 |
| 2025-04-01 | DRS | Option exercise | 4,770 | 54,305 | Form 4 |
| 2025-04-01 | DRS | Option exercise | 4,770 | 9,542 | Form 4 |
| 2025-03-17 | DRS | Withheld for tax | 10,065 | 60,931 | Form 4 |
| 2025-03-17 | DRS | Withheld for tax | 8,080 | 48,300 | Form 4 |
| 2025-03-17 | DRS | Withheld for tax | 4,568 | 65,820 | Form 4 |
| 2025-03-17 | DRS | Option exercise | 23,949 | 0 | Form 4 |
| 2025-03-17 | DRS | Option exercise | 22,696 | 0 | Form 4 |
| 2025-03-17 | DRS | Option exercise | 9,457 | 0 | Form 4 |
| 2025-03-17 | DRS | Option exercise | 22,696 | 70,996 | Form 4 |
| 2025-03-17 | DRS | Option exercise | 23,949 | 56,380 | Form 4 |
| 2025-03-17 | DRS | Option exercise | 9,457 | 70,388 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.