MARK STEPHEN BERG
CIK 1238881 · EVP, Corporate Operations · last filed 2026-05-21
MARK STEPHEN BERG is an EVP, Corporate Operations who has filed 124 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for PUMP, was dated May 21, 2026. Across all open-market trades the lifetime net is −$23.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $645.9K 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.
$645.9K
4
124
-$23.61M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| PUMP | Director | 56,909 | $11.35 | $645.9K | $75.0K | 6 | 2026-05-21 |
| PIONEER NATURAL RESOURCES CO (PXD) Delisted | EVP, Corporate Operations | 0 | $269.62 | $0 | -$23.96M | 103 | 2024-05-03 |
| HighPoint Resources Corp (HPR) Delisted | Director | 2,772 | $4.73 | $13.1K | $100.3K | 10 | 2020-06-05 |
| Pioneer Southwest Energy Partners L.P. (PSE) Delisted | EVP, General Counsel | 0 | — | — | $169.9K | 4 | 2013-12-18 |
Recent Filings
124 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-21 | PUMP | Grant (A) | — | $0 | EDGAR |
| 2026-05-19 | PUMP | Exer (M) | +28,181 | $0 | EDGAR |
| 2025-05-23 | PUMP | Grant (A) | — | $0 | EDGAR |
| 2025-05-09 | PUMP | Exer (M) | +16,454 | $0 | EDGAR |
| 2024-05-10 | PUMP | Grant (A) | — | $0 | EDGAR |
| 2024-05-03 | PIONEER NATURAL RESOURCES CO (PXD) Delisted | Mixed | −121,556 | $0 | EDGAR |
| 2024-03-11 | PIONEER NATURAL RESOURCES CO (PXD) Delisted | Sell (S) | −7,323 | -$1.76M | EDGAR |
| 2024-03-07 | — | Notice (144) | −7,323 | -$1.76M | EDGAR |
| 2024-02-22 | PIONEER NATURAL RESOURCES CO (PXD) Delisted | Tax (F) | −1,419 | -$325.1K | EDGAR |
| 2024-02-08 | PIONEER NATURAL RESOURCES CO (PXD) Delisted | Grant (A) | +11,521 | $0 | 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.