CHARLES SCHWAB INVESTMENT MANAGEMENT INC

Position in OII — Oceaneering International Inc

CIK 884546 SAN FRANCISCO, CA

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Position in OII

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

Position Value

$49,059,408

+$14,387,146 QoQ

Shares Held

1,383,124

-4.1% QoQ

Ownership

1.39%

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 99.99052868723267.ToString("F0")% Shared 0.ToString("F0")% None 0.00947131276732961.ToString("F0")%

Common Shares in OII Over Time

Shares Held

Position Value (USD)

Position in Oil & Gas Equipment & Services

Energy · as of Mar 31, 2026

CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $3,934,706,373 across 35 Oil & Gas Equipment & Services names. OII ranks #10 (1.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	SLB	Slb Limited/Nv	43,775,161	$2,249,605,523
2	BKR	Baker Hughes Co	8,090,259	$493,910,311
3	HAL	Halliburton Co	6,349,552	$247,569,032
4	FTI	TechnipFMC plc	2,802,595	$193,743,392
5	LBRT	Liberty Energy Inc.	3,028,089	$87,208,963
6	WFRD	Weatherford International plc	823,744	$77,909,707
7	NOV	NOV Inc.	4,054,027	$76,256,247
8	AROC	Archrock, Inc.	2,169,536	$75,499,852

All Filings in OII

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$49,059,408	1,383,124	-4.1%	Shares	Sole	2026-05-15
2025-12-31	$34,672,262	1,442,874	+1.8%	Shares	Sole	2026-02-13
2025-09-30	$35,123,741	1,417,423	+3.6%	Shares	Sole	2025-11-10
2025-06-30	$28,357,350	1,368,598	+2.8%	Shares	Sole	2025-08-12
2025-03-31	$29,035,587	1,331,297	+2.5%	Shares	Sole	2025-09-15
2024-12-31	$33,869,000	1,298,658	+4.7%	Shares	Sole	2025-02-06
2024-09-30	$30,853,149	1,240,577	+1.3%	Shares	Sole	2024-11-12
2024-06-30	$28,981,110	1,224,899	+2.6%	Shares	Sole	2024-08-12
2024-03-31	$27,934,873	1,193,798	+3.6%	Shares	Sole	2024-05-09
2023-12-31	$24,519,071	1,152,212	-5.0%	Shares	Sole	2024-02-06
2023-09-30	$31,181,950	1,212,362	-10.4%	Shares	Sole	2023-11-08
2023-06-30	$25,289,319	1,352,370	-6.0%	Shares	Sole	2023-08-10
2023-03-31	$25,353,650	1,438,097	-8.8%	Shares	Sole	2023-05-12
2022-12-31	$27,564,327	1,576,005	-11.1%	Shares	Sole	2023-02-13
2022-09-30	$14,106,560	1,772,181	-3.3%	Shares	Sole	2022-11-14
2022-06-30	$19,582,132	1,833,533	+3.1%	Shares	Sole	2022-08-15
2022-03-31	$26,968,230	1,778,907	+2.8%	Shares	Sole	2022-05-13
2021-12-31	$19,569,025	1,730,241	-15.1%	Shares	Sole	2022-02-11
2021-09-30	$27,156,083	2,038,745	-14.7%	Shares	Sole	2021-11-16
2021-06-30	$37,209,699	2,389,833	-8.8%	Shares	Sole	2021-08-16
2021-03-31	$29,932,516	2,621,061	+158.2%	Shares	Sole	2021-05-17
2020-12-31	$8,069,719	1,015,059	+2.8%	Shares	Sole	2021-02-16
2020-09-30	$3,476,059	987,517	+4.6%	Shares	Sole	2020-11-13
2020-06-30	$6,034,965	944,439	+7.6%	Shares	Sole	2020-08-20
2020-03-31	$2,581,075	877,917	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.