Oil States International OIS Institutional Ownership

NYSE OIS

$8.19 +0.24 (+3.01%)

As of: Oct 1, 2026 · 3:59 PM EDT

Institutions by Trading Activity

198 Institutions

Increased 100 50.5%

Unchanged 26 13.1%

Reduced 72 36.4%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

93.01%

▼-0.51 pp QoQ

Shares Held by Institutions

54.39Mn

of 58.48Mn outstanding

▲+6.22% QoQ

Shares Outstanding

58.48Mn

4.09Mn held outside 13F filers

Institutional Investors

198

filed 13F for Jun 2026

▼-18 vs prior quarter

Net Shares Added (QoQ)

+3.18Mn

accumulated since last quarter

Value of Holdings

$432.41Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Oil States International, Inc (NYSE:OIS) has 198 institutional investors that have filed 13F reports for the period ending June 2026.

Collectively, these holders controlled 93.0% of Oil States International's outstanding shares in June 2026, down from 93.5% in March 2026.
Their total shares held in OIS increased 6.22% quarter over quarter, and separately, investors owning Oil States International increased 31.13% from a year ago.
Of these 198 holders, 100 added to their stakes in Oil States International, 72 trimmed positions, and 26 made no changes.
In total, institutional investors held 54.39Mn shares in Oil States International as of June 2026, up by 3.18Mn shares quarter on quarter, and up 4.63Mn shares year over year.
BlackRock, Inc. leads ownership in OIS with 6.82Mn shares as of June 30, 2026, equal to 11.66% of outstanding shares.
The largest buyers of Oil States International for the quarter ending June 2026 were Sixth Street Partners Management Company, L.P. (1.08Mn), Qube Research & Technologies Ltd (923.88K), ALGERT GLOBAL LLC (799.76K), BlackRock, Inc. (508.65K), NORGES BANK (445.1K).
Top sellers of OIS stock for the quarter ending June 2026 included MARSHALL WACE, LLP (691.14K), Jpmorgan Chase & Co (647.7K), DIMENSIONAL FUND ADVISORS LP (515.65K), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (442.44K), ACADIAN ASSET MANAGEMENT LLC (310.1K).
Oil States International's 10 largest shareholders as of June 2026 include BlackRock, Inc. (6.82Mn), DIMENSIONAL FUND ADVISORS LP (3.01Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.42Mn), AMERICAN CENTURY COMPANIES INC (2.21Mn), ACADIAN ASSET MANAGEMENT LLC (2.04Mn), D. E. Shaw & Co., Inc. (2.02Mn), First Eagle Investment Management, LLC (2.01Mn), State Street Corp (1.98Mn), AQR CAPITAL MANAGEMENT LLC (1.74Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (1.63Mn) per Business Quant data.

Form 13F Holdings

198 Institutional Holders

Report period 30 Jun, 2026

Total shares held 54.39Mn

Of outstanding 93.01%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	6,818,282	11.66%	▲508,651	+8.06%	$54.61Mn
2	DIMENSIONAL FUND ADVISORS LP	0000354204	3,006,491	5.14%	▼515,652	-14.64%	$24.08Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,418,106	4.13%	▲547	+0.02%	$19.37Mn
4	AMERICAN CENTURY COMPANIES INC	0000748054	2,213,177	3.78%	▲364,869	+19.74%	$17.73Mn
5	ACADIAN ASSET MANAGEMENT LLC	0000916542	2,042,288	3.49%	▼310,097	-13.18%	$16.35K
6	D. E. Shaw & Co., Inc.	0001009207	2,017,956	3.45%	▼149,316	-6.89%	$16.16Mn
7	First Eagle Investment Management, LLC	0001325447	2,005,677	3.43%	▼2,081,741	-50.93%	$16.07Mn
8	State Street Corp	0000093751	1,980,909	3.39%	▲247,410	+14.27%	$15.87Mn
9	AQR CAPITAL MANAGEMENT LLC	0001167557	1,736,910	2.97%	▼87,805	-4.81%	$13.91Mn
10	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	1,625,098	2.78%	▼11,726	-0.72%	$13.02Mn
11	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,445,708	2.47%	▲87,918	+6.48%	$11.58Mn
12	TWO SIGMA INVESTMENTS, LP	0001179392	1,444,776	2.47%	▲371,472	+34.61%	$11.57Mn
13	KENNEDY CAPITAL MANAGEMENT LLC	0000884589	1,291,140	2.21%	▲212,741	+19.73%	$10.34Mn
14	Morgan Stanley	0000895421	1,206,130	2.06%	▼144,030	-10.67%	$9.66Mn
15	Qube Research & Technologies Ltd	0001729829	1,122,386	1.92%	▲923,875	+465.40%	$8.99Mn
16	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	0001164833	1,100,201	1.88%	▲99,150	+9.90%	$8.81Mn
17	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	1,083,987	1.85%	▼47,622	-4.21%	$8.68Mn
17	Sixth Street Partners Management Company, L.P.	0001812095	1,083,987	1.85%	▲1,083,987	0.00%	$8.68Mn
18	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0001107261	840,237	1.44%	▲7,332	+0.88%	$6.73Mn
19	ALGERT GLOBAL LLC	0001275218	813,971	1.39%	▲799,761	+5,628.16%	$6.52Mn

Showing 1 to 20 of 198 holders