Mark Lawrence Plaumann
CIK 1290795 · last filed 2026-08-24
Mark Lawrence Plaumann is a corporate insider who has filed 46 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing shows the insider sold $210.6K of FANG on Aug 24, 2026. Across all open-market trades the lifetime net is −$1.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.5M 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.
$4.46M
4
46
-$1.06M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| FANG | Director | 20,125 | $203.16 | $4.09M | -$1.06M | 22 | 2026-08-24 |
| RJET | Director | 21,960 | $17.07 | $374.9K | $0 | 9 | 2015-11-17 |
| Rhino Resource Partners LP (RNO) Delisted | Director | 39,040 | — | — | $0 | 8 | 2015-10-07 |
| ICX TECHNOLOGIES INC (ICXT) Delisted | Director | — | — | — | $0 | 3 | 2009-10-27 |
Recent Filings
46 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-08-24 | FANG | Sell (S) | −1,000 | -$210.6K | EDGAR |
| 2026-08-21 | FANG | Notice (144) | −1,000 | -$210.6K | EDGAR |
| 2026-06-10 | FANG | Sell (S) | −500 | -$98.2K | EDGAR |
| 2026-06-09 | FANG | Notice (144) | −500 | -$98.2K | EDGAR |
| 2026-05-21 | FANG | Grant (A) | +982 | $0 | EDGAR |
| 2025-06-23 | FANG | Other (J) | +2,965 | $0 | EDGAR |
| 2025-05-22 | FANG | Grant (A) | +1,417 | $0 | EDGAR |
| 2024-12-09 | FANG | Gift (G) | −100 | $0 | EDGAR |
| 2024-11-14 | FANG | Mixed | −9,562 | -$251.6K | EDGAR |
| 2024-11-13 | FANG | Notice (144) | −1,390 | -$251.6K | 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.