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Mark D. Wolf

CIK 1765526 · General Counsel, Corporate Sec · last filed 2026-06-29

Mark D. Wolf is a General Counsel, Corporate Sec who has filed 33 SEC Form 4 insider transactions across 2 companies since 2019. The most recent filing shows the insider sold $2.2M of STRL on Jun 29, 2026. Across all open-market trades the lifetime net is −$4.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $17.2M 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.

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Disclosed Exposure

$17.20M

Companies

2

Total Filings

33

Lifetime Open-Market Net

-$4.94M

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
STRL General Counsel, Corporate Sec 28,137 $611.47 $17.20M -$4.94M 26 2026-06-29
U.S. WELL SERVICES HOLDINGS, LLC (USWSW) Delisted See Remarks 58,594 $0.06 $3.6K $0 1 2019-03-18

Recent Filings

33 filings
Insider 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
2026-06-29 STRL Sell (S) −2,500 -$2.22M EDGAR
2026-06-25 STRL Notice (144) −2,500 -$2.22M EDGAR
2026-02-27 STRL Mixed +1,803 -$543.1K EDGAR
2026-01-05 STRL Mixed −431 -$273.8K EDGAR
2025-12-16 STRL Gift (G) −50 $0 EDGAR
2025-06-25 STRL Sell (S) −3,500 -$790.5K EDGAR
2025-06-24 STRL Notice (144) −3,500 -$790.5K EDGAR
2025-02-28 STRL Mixed +3,831 -$313.1K EDGAR
2025-01-03 STRL Mixed −564 -$232.8K EDGAR
2024-03-25 STRL Sell (S) −1,500 -$166.4K EDGAR
Showing 1–10 of 33
Page 1 of 4
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.