Home

JOHN T MILLS

CIK 1238374 · last filed 2024-05-09

JOHN T MILLS is a corporate insider who has filed 83 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for CNR, was dated Feb 21, 2025. Across all open-market trades the lifetime net is −$3.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.2M across reported positions. 56 SEC filings were submitted jointly with CNX Resources 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.

Loading insider history…
Disclosed Exposure

$2.18M

Companies

4

Total Filings

83

Lifetime Open-Market Net

-$3.46M

Filer Profile

Reported Address
MARATHON OIL CORP
5555 SAN FELIPE ROAD
HOUSTON, TX 77056
Related Filers
CNX Resources Corp — 56 joint filings, latest 2017-05-11
CONSOL Energy Inc. — 22 joint filings, latest 2025-02-21
MARATHON OIL CORP — 1 joint filings, latest 2003-12-02
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
Core Natural Resources, Inc. (CEIX) Delisted Director 55,950 $99.61 $5.57M -$3.24M 19 2024-05-09
CNX Director 60,679 $35.91 $2.18M -$223.9K 48 2017-05-11
Regency Energy Partners LP (RGNC) Delisted Director 10,000 — — $0 1 2008-01-30
HORIZON OFFSHORE INC (HOFF) Delisted Director 11,729 — — $0 1 2007-05-25

Recent Filings

83 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
2025-02-21 CNR Notice (144) −51,603 -$3.90M EDGAR
2024-05-09 Core Natural Resources, Inc. (CEIX) Delisted Grant (A) +1,733 $0 EDGAR
2023-08-16 Core Natural Resources, Inc. (CEIX) Delisted Sell (S) −23,407 -$1.89M EDGAR
2023-08-15 Core Natural Resources, Inc. (CEIX) Delisted Sell (S) −282 -$22.7K EDGAR
2023-08-11 CNR Notice (144) −23,689 -$1.92M EDGAR
2023-05-04 Core Natural Resources, Inc. (CEIX) Delisted Grant (A) +2,347 $0 EDGAR
2022-05-19 Core Natural Resources, Inc. (CEIX) Delisted Sell (S) −14,177 -$726.2K EDGAR
2022-05-05 Core Natural Resources, Inc. (CEIX) Delisted Grant (A) +3,062 $0 EDGAR
2021-06-04 Core Natural Resources, Inc. (CEIX) Delisted Sell (S) −15,702 -$260.3K EDGAR
2021-05-06 Core Natural Resources, Inc. (CEIX) Delisted Grant (A) +14,177 $0 EDGAR
Showing 1–10 of 83
Page 1 of 9
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.