CHARLES SCHWAB INVESTMENT MANAGEMENT INC

Position in PTEN — Patterson Uti Energy Inc

CIK 884546 SAN FRANCISCO, CA

Position in PTEN

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$47,853,567

+$22,996,609 QoQ

Shares Held

4,418,612

+8.6% QoQ

Ownership

1.16%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 99.99253159136852.ToString("F0")% Shared 0.ToString("F0")% None 0.007468408631488802.ToString("F0")%

Energy · as of Mar 31, 2026

CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $417,411,752 across 10 Oil & Gas Drilling names. PTEN ranks #4 (11.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	NE	Noble Corp plc	2,084,810	$102,301,626
2	VAL	Valaris Ltd	678,487	$66,518,865
3	RIG	Transocean Ltd.	9,810,858	$65,045,988
4	PTEN	Patterson Uti Energy Inc This page	4,418,612	$47,853,567
5	HP	Helmerich & Payne, Inc.	1,322,837	$47,661,817
6	NBR	Nabors Industries Ltd	471,718	$40,596,051
7	SDRL	SEADRILL Ltd	513,099	$23,346,004
8	SOC	Sable Offshore Corp.	1,016,407	$16,791,043

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$47,853,567	4,418,612	+8.6%	Shares	Sole	2026-05-15
2025-12-31	$24,856,958	4,068,242	-13.5%	Shares	Sole	2026-02-13
2025-09-30	$24,370,827	4,704,793	-6.9%	Shares	Sole	2025-11-10
2025-06-30	$29,976,375	5,055,038	-10.1%	Shares	Sole	2025-08-12
2025-03-31	$46,227,857	5,623,827	-3.2%	Shares	Sole	2025-09-15
2024-12-31	$47,990,765	5,810,020	+7.0%	Shares	Sole	2025-02-06
2024-09-30	$41,540,127	5,430,082	+10.0%	Shares	Sole	2024-11-12
2024-06-30	$51,135,219	4,935,832	+5.4%	Shares	Sole	2024-08-12
2024-03-31	$55,892,250	4,681,093	-2.2%	Shares	Sole	2024-05-09
2023-12-31	$51,677,319	4,784,937	+3.9%	Shares	Sole	2024-02-06
2023-09-30	$63,767,924	4,607,509	+67.2%	Shares	Sole	2023-11-08
2023-06-30	$32,980,067	2,755,227	+3.5%	Shares	Sole	2023-08-10
2023-03-31	$31,144,288	2,661,905	+3.6%	Shares	Sole	2023-05-12
2022-12-31	$43,267,264	2,569,315	-14.9%	Shares	Sole	2023-02-13
2022-09-30	$35,271,240	3,019,798	-10.1%	Shares	Sole	2022-11-14
2022-06-30	$52,934,372	3,358,780	-3.3%	Shares	Sole	2022-08-15
2022-03-31	$53,784,006	3,474,419	+84.3%	Shares	Sole	2022-05-13
2021-12-31	$15,931,368	1,885,369	+6.6%	Shares	Sole	2022-02-11
2021-09-30	$15,918,030	1,768,670	-2.2%	Shares	Sole	2021-11-16
2021-06-30	$17,977,881	1,808,640	-0.9%	Shares	Sole	2021-08-16
2021-03-31	$13,018,096	1,825,820	+4.1%	Shares	Sole	2021-05-17
2020-12-31	$9,229,827	1,754,720	+4.2%	Shares	Sole	2021-02-16
2020-09-30	$4,797,838	1,683,452	+2.3%	Shares	Sole	2020-11-13
2020-06-30	$5,709,319	1,645,337	+36.5%	Shares	Sole	2020-08-20
2020-03-31	$2,831,634	1,204,951	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.