ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Position in MGY — Magnolia Oil & Gas Corp

CIK 1164508 BOSTON, MA

Position in MGY

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$139,756,995

-$57,991,423 QoQ

Shares Held

5,463,526

-12.8% QoQ

Ownership

2.31%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

of 408 holders

Holding Since

Jun 2020

12 quarters on record

Voting authority Sole 93% Shared 0% None 7%

Energy · as of Jun 30, 2026

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $1,690,118,286 across 26 Oil & Gas E&P names. MGY ranks #3 (8.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CNQ	CANADIAN NATURAL RESOURCES Ltd	15,929,234	$629,204,743
2	OVV	Ovintiv Inc.	5,069,548	$266,911,702
3	MGY	Magnolia Oil & Gas Corp This page	5,463,526	$139,756,995
4	CNX	CNX Resources Corp	3,427,394	$116,291,478
5	APA	APA Corp	2,836,883	$92,397,279
6	MUR	Murphy Oil Corp	2,437,039	$79,349,989
7	BTE	Baytex Energy Corp.	18,604,481	$74,417,924
8	GPOR	Gulfport Energy Corp	388,730	$65,967,481

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$139,756,995	5,463,526	-12.8%	Shares	Defined	2026-08-13
2026-03-31	$197,748,418	6,263,808	+790.8%	Shares	Defined	2026-05-14
2025-12-31	$15,392,807	703,189	-49.8%	Shares	Defined	2026-02-13
2025-09-30	$33,448,529	1,401,279	+192.4%	Shares	Defined	2025-11-13
2025-06-30	$10,774,866	479,309	+6.3%	Shares	Defined	2025-08-13
2025-03-31	$11,389,658	450,897	+1359.2%	Shares	Defined	2025-05-14
2021-09-30	$549,711	30,900	-96.8%	Shares	Defined	2021-11-12
2021-06-30	$14,982,433	958,569	-44.5%	Shares	Defined	2021-08-13
2021-03-31	$19,839,575	1,728,186	-9.1%	Shares	Defined	2021-05-14
2020-12-31	$13,425,267	1,901,596	-2.4%	Shares	Defined	2021-02-12
2020-09-30	$10,074,758	1,948,696	+24.9%	Shares	Defined	2020-11-12
2020-06-30	$9,455,393	1,560,296	—	Shares	Defined	2020-08-12
No filing history on record for this holder in this stock.