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DOMENIC J DELL'OSSO JR

CIK 1504988 · President & CEO · last filed 2026-08-10

DOMENIC J DELL'OSSO JR is a President & CEO who has filed 84 SEC Form 4 insider transactions across 7 companies since 2010. The most recent filing shows the insider bought $257.0K of GPOR on Aug 10, 2026. Across all open-market trades the lifetime net is +$1.5M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $14.6M across reported positions. 79 SEC filings were submitted jointly with CHESAPEAKE ENERGY CORP.

"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

$14.63M

Companies

7

Total Filings

84

Lifetime Open-Market Net

$1.52M

Filer Profile

Reported Address
6100 N. WESTERN AVE.
OKLAHOMA CITY, OK 73118
Related Filers
CHESAPEAKE ENERGY CORP — 79 joint filings, latest 2026-03-19
Transocean Ltd. — 5 joint filings, latest 2026-05-27
GULFPORT ENERGY CORP — 3 joint filings, latest 2026-08-10
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
GPOR President & CEO 24,349 $175.95 $4.28M $257.0K 2 2026-08-10
RIG Director — $5.94 — $0 4 2026-05-27
EXPAND ENERGY Corp (EXEEZ) Delisted President and CEO 166,715 $95.28 $15.88M $488.4K 3 2025-08-18
EXE President and CEO 109,812 $94.23 $10.35M $439.8K 58 2024-10-15
EXPAND ENERGY Corp (CHKEZ) Delisted President and CEO 138,132 $64.04 $8.85M $246.1K 10 2024-05-30
EXPAND ENERGY Corp (CHK) Delisted Exec. Vice President & CFO 0 $81.46 $0 -$19.8K 2 2021-01-08
FTS International, Inc. (FTSI) Delisted Director 300 $26.49 $7.9K $108.0K 1 2018-02-06

Recent Filings

84 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
2026-08-10 GPOR Buy (P) +1,600 $257.0K EDGAR
2026-06-01 GPOR Grant (A) +22,749 $0 EDGAR
2026-05-27 RIG Grant (A) — $0 EDGAR
2026-03-19 EXE Notice (144) −10,000 -$1.11M EDGAR
2026-03-17 EXE Notice (144) −28 -$3.1K EDGAR
2026-03-17 EXE Notice (144) −4,972 -$546.2K EDGAR
2026-03-17 EXE Notice (144) −5,000 -$546.2K EDGAR
2025-08-18 EXPAND ENERGY Corp (EXEEZ) Delisted Buy (P) +2,500 $239.7K EDGAR
2025-06-02 RIG Grant (A) — $0 EDGAR
2025-03-17 EXPAND ENERGY Corp (EXEEZ) Delisted Mixed +56,370 -$4.08M EDGAR
Showing 1–10 of 84
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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.