MASSACHUSETTS FINANCIAL SERVICES CO /MA/

Position in AR — ANTERO RESOURCES Corp

CIK 912938 Boston, MA

Position in AR

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$179,433,219

+$41,996,404 QoQ

Shares Held

4,227,927

+6.0% QoQ

Ownership

1.36%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2021

11 quarters on record

Voting authority Sole 87% Shared 12% None 2%

Energy · as of Mar 31, 2026

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $5,003,661,857 across 14 Oil & Gas E&P names. AR ranks #6 (3.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	COP	Conocophillips	20,267,161	$2,675,265,252
2	EOG	Eog Resources Inc	4,729,555	$683,751,764
3	EXE	EXPAND ENERGY Corp	3,725,907	$409,030,068
4	PR	Permian Resources Corp	16,276,635	$347,017,857
5	FANG	Diamondback Energy, Inc.	1,396,300	$276,174,176
6	AR	ANTERO RESOURCES Corp This page	4,227,927	$179,433,219
7	CHRD	Chord Energy Corp	895,354	$127,301,431
8	CNQ	CANADIAN NATURAL RESOURCES Ltd	2,379,868	$115,970,966

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$179,433,219	4,227,927	+6.0%	Shares	Defined	2026-05-14
2025-12-31	$137,436,815	3,988,300	+111.2%	Shares	Sole	2026-01-22
2025-09-30	$63,379,569	1,888,545	+4.1%	Shares	Sole	2025-10-29
2025-06-30	$73,045,484	1,813,443	-11.7%	Shares	Sole	2025-08-08
2025-03-31	$83,080,502	2,054,414	-27.9%	Shares	Sole	2025-05-02
2024-12-31	$99,939,992	2,851,355	+7.0%	Shares	Sole	2025-02-12
2024-09-30	$76,341,592	2,664,628	+4.8%	Shares	Sole	2024-11-12
2024-06-30	$82,939,358	2,541,813	+17.6%	Shares	Sole	2024-08-09
2024-03-31	$62,654,587	2,160,503	+3397.1%	Shares	Sole	2024-05-14
2021-06-30	$928,553	61,780	-61.6%	Shares	Sole	2021-08-13
2021-03-31	$1,642,465	161,026	—	Shares	Sole	2021-05-13
No filing history on record for this holder in this stock.