William Wallace McMullen
CIK 1730172 · last filed 2026-03-23
William Wallace McMullen is a corporate insider who has filed 9 SEC Form 4 insider transactions across 2 companies since 2018. The most recent filing shows the insider bought $386.4K of MNR on Mar 23, 2026. Across all open-market trades the lifetime net is +$281.4M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $992.6M 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.
$992.64M
2
9
$281.35M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MNR | Director | 74,859,917 | $13.26 | $992.64M | $278.41M | 7 | 2026-03-23 |
| Alta Mesa Resources, Inc. /DE (AMRWW) Delisted | Director | 4,107,800 | — | — | $2.95M | 2 | 2018-09-07 |
Recent Filings
9 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-23 | MNR | Buy (P) | +27,855 | $386.4K | EDGAR |
| 2025-08-12 | MNR | Buy (P) | +9,255 | $133.2K | EDGAR |
| 2025-06-17 | MNR | Buy (P) | +841,200 | $12.49M | EDGAR |
| 2025-06-12 | MNR | Buy (P) | +735,387 | $10.28M | EDGAR |
| 2025-02-10 | MNR | Buy (P) | +15,483,870 | $240.00M | EDGAR |
| 2024-12-12 | MNR | Buy (P) | +1,010,274 | $15.12M | EDGAR |
| 2023-10-31 | MNR | Disp (D) | −9,029,997 | -$159.56M | EDGAR |
| 2018-09-07 | Alta Mesa Resources, Inc. /DE (AMRWW) Delisted | Buy (P) | +622,222 | $2.95M | EDGAR |
| 2018-06-12 | Alta Mesa Resources, Inc. /DE (AMRWW) Delisted | Other (J) | — | $0 | EDGAR |