Brian F Maxted

CIK 1240698 · Chief Exploration Officer · last filed 2026-08-26

"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.

Disclosed Exposure

$17.01M

Companies

Total Filings

Lifetime Open-Market Net

-$16.67M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

KOS price and trades

Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.

Shares held

Shares owned after each reported transaction on this company (direct holdings as reported).

Open-market buying and selling

by month

Dollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.

Exposure by company

latest

OfficerDirector10% owner* stale (no filing in 3 yrs)

Most recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.

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
GPRK	Director	45,026	$9.41	$423.7K	$0	2	2026-08-26
KOS	Chief Exploration Officer	8,012,505	$2.07	$16.59M	-$16.67M	26	2019-06-07

Recent Filings · Page 3 of 3

28 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
2014-03-31	KOS	Sell (S)	−178,956	-$1.96M	EDGAR
2014-03-28	KOS	Sell (S)	−128,027	-$1.42M	EDGAR
2013-05-20	KOS	Tax (F)	−258,774	-$2.98M	EDGAR
2013-03-18	KOS	Sell (S)	−161,270	-$1.77M	EDGAR
2013-02-25	KOS	Sell (S)	−1,061,461	-$11.68M	EDGAR
2012-05-18	KOS	Other (J)	−226,348	-$2.38M	EDGAR
2011-06-17	KOS	Exer (M)	+647,059	$0	EDGAR
2011-05-18	KOS	Mixed	+13,466,750	$180.0K	EDGAR

Showing 21–28 of 28

Prev Page 3 of 3

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.