GREGORY H BOYCE

CIK 1265769 · Chairman and CEO · last filed 2026-05-15

"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

$4.70M

Companies

5

Total Filings

109

Lifetime Open-Market Net

-$55.27M

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
NEM Director 46,871 $100.23 $4.70M $0 12 2026-05-15
MARATHON OIL CORP (MRO) Delisted Director 134,286 $28.55 $3.83M $252.2K 15 2021-03-03
MONSANTO CO /NEW/ (MON) Delisted Director 0 $10.07 $0 $0 28 2018-06-07
PEABODY ENERGY CORP (BTUw) Delisted Chairman and CEO 490,063 -$55.52M 49 2015-02-02
MARATHON OIL CORP (MROw) Delisted Director 13,365 $0 5 2011-04-05

Recent Filings · Page 8 of 11

109 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2011-01-14 PEABODY ENERGY CORP (BTUw) Delisted Gift (G) $0 EDGAR
2011-01-05 PEABODY ENERGY CORP (BTUw) Delisted Grant (A) $0 EDGAR
2011-01-05 MARATHON OIL CORP (MROw) Delisted Grant (A) +997 $37.5K EDGAR
2011-01-04 PEABODY ENERGY CORP (BTUw) Delisted Tax (F) −70,022 -$4.48M EDGAR
2010-12-02 PEABODY ENERGY CORP (BTUw) Delisted Mixed -$7.64M EDGAR
2010-09-27 PEABODY ENERGY CORP (BTUw) Delisted Mixed -$1.68M EDGAR
2010-09-24 PEABODY ENERGY CORP (BTUw) Delisted Mixed -$342.4K EDGAR
2010-08-03 PEABODY ENERGY CORP (BTUw) Delisted Mixed -$1.91M EDGAR
2010-07-23 PEABODY ENERGY CORP (BTUw) Delisted Mixed -$1.80M EDGAR
2010-02-01 PEABODY ENERGY CORP (BTUw) Delisted Mixed -$3.29M EDGAR
Showing 7180 of 109
Page 8 of 11
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.