O'Brien Greene & Co. Inc

Position in KOS — Kosmos Energy Ltd.

CIK 1768635 MEDIA, PA

Position in KOS

as of Jun 30, 2026 · filed Aug 6, 2026 Compact

Position Value

$189,900

New position

Shares Held

90,000

first reported quarter

Ownership

0.015%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

#136

of 265 holders

Holding Since

Jun 2026

1 quarter on record

Voting authority Sole 100% Shared 0% None 0%

Energy · as of Jun 30, 2026

O'Brien Greene & Co. Inc holds $12,317,135 across 4 Oil & Gas E&P names. KOS ranks #4 (1.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	EOG	Eog Resources Inc	83,607	$10,846,335
2	BSM	Black Stone Minerals, L.P.	70,000	$977,900
3	DMLP	Dorchester Minerals, L.P.	12,000	$303,000
4	KOS	Kosmos Energy Ltd. This page	90,000	$189,900

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$189,900	90,000	—	Shares	Sole	2026-08-06
No filing history on record for this holder in this stock.