HARBOR CAPITAL ADVISORS, INC.

Position in KOS — Kosmos Energy Ltd.

CIK 1039128 CHICAGO, IL

Position in KOS

as of Mar 31, 2026 · filed Apr 28, 2026 Compact

Position Value

$1,816,507

+$1,593,527 QoQ

Shares Held

653,420

+166.7% QoQ

Ownership

0.110%

of shares outstanding

% of Portfolio

0.17%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2023

12 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Energy · as of Mar 31, 2026

HARBOR CAPITAL ADVISORS, INC. holds $22,602,460 across 27 Oil & Gas E&P names. KOS ranks #7 (8.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MGY	Magnolia Oil & Gas Corp	113,121	$3,571,229
2	MUR	Murphy Oil Corp	86,451	$3,566,103
3	MTDR	Matador Resources Co	47,966	$3,030,491
4	APA	APA Corp	66,602	$2,826,588
5	VTS	Vitesse Energy, Inc.	123,555	$2,243,758
6	CRC	California Resources Corp	29,909	$2,070,300
7	KOS	Kosmos Energy Ltd. This page	653,420	$1,816,507
8	OXY	Occidental Petroleum Corp /De/	20,246	$1,315,990

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,816,507	653,420	+166.7%	Shares	Sole	2026-04-28
2025-12-31	$222,980	245,034	+9.8%	Shares	Sole	2026-01-20
2025-09-30	$370,410	223,139	-76.1%	Shares	Sole	2025-10-15
2025-06-30	$1,603,602	932,327	-29.3%	Shares	Sole	2025-07-09
2025-03-31	$3,008,466	1,319,503	-1.8%	Shares	Sole	2025-04-14
2024-12-31	$4,593,617	1,343,163	+4.0%	Shares	Sole	2025-01-10
2024-09-30	$5,204,599	1,291,464	+81.5%	Shares	Sole	2024-10-29
2024-06-30	$3,942,291	711,605	+74.1%	Shares	Sole	2024-07-09
2024-03-31	$2,436,358	408,785	+109.9%	Shares	Sole	2024-05-13
2023-12-31	$1,306,698	194,739	+14.1%	Shares	Sole	2024-01-08
2023-09-30	$1,395,761	170,631	-19.3%	Shares	Sole	2023-10-20
2023-06-30	$1,266,333	211,408	—	Shares	Sole	2023-07-11
No filing history on record for this holder in this stock.