OIL STATES INTERNATIONAL, INC (OIS) — Institutional Holders, Q2 2026

201 institutional investment managers reported a OIS position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $428.6M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← OIS stock profile

OIS in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

Trimmed

Sold out

Biggest buyers

Qube Research & Technologies LtdAdded · +923,875 sh+$7.4M
ALGERT GLOBALAdded · +799,761 sh+$6.4M
BlackRockAdded · +508,651 sh+$4.1M
TWO SIGMA INVESTMENTSAdded · +371,472 sh+$3.0M
Squarepoint OpsAdded · +369,621 sh+$3.0M

Biggest sellers

DRIEHAUS CAPITAL MANAGEMENTSold out · -1,328,078 sh-$10.6M
MARSHALL WACE, LLPTrimmed · -691,137 sh-$5.5M
JPMORGAN CHASETrimmed · -647,698 sh-$5.2M
DIMENSIONAL FUND ADVISORSTrimmed · -515,652 sh-$4.1M
JANE STREET GROUPSold out · -454,245 sh-$3.6M

OIS 13F holders ranked 1–100 of 201

Institutional investors reporting a position in OIL STATES INTERNATIONAL, INC on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 6,818,282 sh	6,818,282	$54.6M	<0.01%	+8.1%
2	DIMENSIONAL FUND ADVISORS#2 · 3,006,491 sh	3,006,491	$24.1M	<0.01%	-14.6%
3	VANGUARD CAPITAL MANAGEMENT#3 · 2,418,106 sh	2,418,106	$19.4M	<0.01%	0.0%
4	AMERICAN CENTURY COMPANIES#4 · 2,213,177 sh	2,213,177	$17.7M	<0.01%	+19.7%
5	ACADIAN ASSET MANAGEMENT#5 · 2,042,288 sh	2,042,288	$16.4M	0.02%	-13.2%
6	D. E. Shaw#6 · 2,017,956 sh	2,017,956	$16.2M	<0.01%	-6.9%
7	First Eagle Investment Management#7 · 2,005,677 sh	2,005,677	$16.1M	0.03%	-1.9%
8	STATE STREET#8 · 1,980,909 sh	1,980,909	$15.9M	<0.01%	+14.3%
9	AQR CAPITAL MANAGEMENT#9 · 1,736,910 sh	1,736,910	$13.9M	<0.01%	-4.8%
10	VANGUARD PORTFOLIO MANAGEMENT#10 · 1,625,098 sh	1,625,098	$13.0M	<0.01%	-0.7%
11	GEODE CAPITAL MANAGEMENT#11 · 1,445,708 sh	1,445,708	$11.6M	<0.01%	+6.5%
12	TWO SIGMA INVESTMENTS#12 · 1,444,776 sh	1,444,776	$11.6M	<0.01%	+34.6%
13	KENNEDY CAPITAL MANAGEMENT#13 · 1,291,140 sh	1,291,140	$10.3M	0.18%	+19.7%
14	MORGAN STANLEY#14 · 1,206,130 sh	1,206,130	$9.7M	<0.01%	-10.7%
15	Qube Research & Technologies Ltd#15 · 1,122,386 sh	1,122,386	$9.0M	<0.01%	+465.4%
16	HOTCHKIS & WILEY CAPITAL MANAGEMENT#16 · 1,100,201 sh	1,100,201	$8.8M	0.03%	+9.9%
17	CHARLES SCHWAB INVESTMENT MANAGEMENT#17 · 1,083,987 sh	1,083,987	$8.7M	<0.01%	-4.2%
18	BRIDGEWAY CAPITAL MANAGEMENT#18 · 840,237 sh	840,237	$6.7M	0.12%	+0.9%
19	ALGERT GLOBAL#19 · 813,971 sh	813,971	$6.5M	0.08%	+5628.2%
20	MILLENNIUM MANAGEMENT#20 · 667,842 sh	667,842	$5.3M	<0.01%	-5.2%
21	FEDERATED HERMES#21 · 651,708 sh	651,708	$5.2M	<0.01%	+57.4%
22	PANAGORA ASSET MANAGEMENT#22 · 650,275 sh	650,275	$5.2M	0.02%	+20.4%
23	UBS Group AG#23 · 646,012 sh	646,012	$5.2M	<0.01%	-24.3%
24	Trexquant Investment#24 · 602,932 sh	602,932	$4.8M	0.03%	+9.4%
25	FMR#25 · 558,454 sh	558,454	$4.5M	<0.01%	+109.5%
26	GOLDMAN SACHS GROUP#26 · 542,442 sh	542,442	$4.3M	<0.01%	-22.7%
27	FRANKLIN RESOURCES#27 · 533,744 sh	533,744	$4.3M	<0.01%	+34.8%
28	NORTHERN#28 · 498,126 sh	498,126	$4.0M	<0.01%	+7.9%
29	AMERIPRISE FINANCIAL#29 · 459,434 sh	459,434	$3.7M	<0.01%	+0.7%
30	NORGES BANK#30 · 445,100 sh	445,100	$3.6M	<0.01%	—
31	Empowered Funds#31 · 409,537 sh	409,537	$3.3M	0.02%	+1.8%
32	Connor, Clark & Lunn Investment Management Ltd.#32 · 404,650 sh	404,650	$3.2M	<0.01%	+11.9%
33	Squarepoint Ops#33 · 399,706 sh	399,706	$3.2M	<0.01%	+1228.6%
34	Russell Investments Group, Ltd.#34 · 378,012 sh	378,012	$3.0M	<0.01%	+22.2%
35	VANGUARD FIDUCIARY#35 · 369,431 sh	369,431	$3.0M	<0.01%	+1.2%
36	Hara Capital#36 · 335,818 sh	335,818	$2.7M	1.42%	-0.3%
37	Bank of New York Mellon#37 · 329,168 sh	329,168	$2.6M	<0.01%	+1.5%
38	DEUTSCHE BANK AG\#38 · 309,870 sh	309,870	$2.5M	<0.01%	+2.8%
39	GENDELL JEFFREY L#39 · 298,317 sh	298,317	$2.4M	0.02%	0.0%
40	MASSACHUSETTS FINANCIAL SERVICES#40 · 293,356 sh	293,356	$2.3M	<0.01%	-2.0%
41	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#41 · 278,957 sh	278,957	$2.2M	<0.01%	-61.3%
42	Y-Intercept (Hong Kong) Ltd#42 · 250,165 sh	250,165	$2.0M	—	+138.9%
43	MARSHALL WACE, LLP#43 · 241,635 sh	241,635	$1.9M	<0.01%	-74.1%
44	STATE OF WISCONSIN INVESTMENT BOARD#44 · 220,231 sh	220,231	$1.8M	<0.01%	+36.9%
45	LSV ASSET MANAGEMENT#45 · 201,400 sh	201,400	$1.6M	<0.01%	-6.9%
46	Fisher Asset Management#46 · 198,305 sh	198,305	$1.6M	<0.01%	0.0%
47	Invesco Ltd.#47 · 197,254 sh	197,254	$1.6M	<0.01%	-36.7%
48	RAYMOND JAMES FINANCIAL#48 · 179,343 sh	179,343	$1.4M	<0.01%	-7.5%
49	JPMORGAN CHASE#49 · 174,170 sh	174,170	$1.4M	<0.01%	-78.8%
50	O'SHAUGHNESSY ASSET MANAGEMENT#50 · 172,626 sh	172,626	$1.4M	<0.01%	+9.4%
51	Vanguard Global Advisers#51 · 163,468 sh	163,468	$1.3M	<0.01%	+26.0%
52	Cambria Investment Management, L.P.#52 · 152,474 sh	152,474	$1.2M	0.06%	+159.7%
53	PRICE T ROWE ASSOCIATES#53 · 150,568 sh	150,568	$1.2M	<0.01%	+15.8%
54	LOS ANGELES CAPITAL MANAGEMENT#54 · 148,022 sh	148,022	$1.2M	<0.01%	-5.0%
55	Creative Planning#55 · 146,316 sh	146,316	$1.2M	<0.01%	-7.3%
56	SEI INVESTMENTS#56 · 143,207 sh	143,207	$1.1M	<0.01%	-67.6%
57	WEDGE CAPITAL MANAGEMENT L L P#57 · 137,594 sh	137,594	$1.1M	—	+52.0%
58	Nuveen#58 · 135,555 sh	135,555	$1.1M	<0.01%	+7.5%
59	MARTINGALE ASSET MANAGEMENT L P#59 · 134,258 sh	134,258	$1.1M	0.03%	+75.9%
60	BNP PARIBAS FINANCIAL MARKETS#60 · 130,476 sh	130,476	$1.0M	<0.01%	+48.4%
61	Point72 Asset Management, L.P.#61 · 118,762 sh	118,762	$951.3K	<0.01%	+68.8%
62	VICTORY CAPITAL MANAGEMENT#62 · 117,741 sh	117,741	$943.1K	<0.01%	+83.6%
63	Man Group plc#63 · 113,810 sh	113,810	$911.6K	<0.01%	+175.5%
64	BANK OF AMERICA#64 · 109,985 sh	109,985	$881.0K	<0.01%	+18.5%
65	IEQ CAPITAL#65 · 108,122 sh	108,122	$866.1K	<0.01%	-30.1%
66	BOOTHBAY FUND MANAGEMENT#66 · 106,826 sh	106,826	$855.7K	0.01%	+192.4%
67	ALLIANCEBERNSTEIN L.P.#67 · 69,490 sh	69,490	$808.9K	<0.01%	+13.2%
68	RHUMBLINE ADVISERS#68 · 96,783 sh	96,783	$775.2K	<0.01%	+1.4%
69	PRINCIPAL FINANCIAL GROUP#69 · 91,133 sh	91,133	$730.0K	<0.01%	+7.1%
70	STIFEL FINANCIAL#70 · 90,982 sh	90,982	$728.8K	<0.01%	0.0%
71	Brevan Howard Capital Management#71 · 89,088 sh	89,088	$713.6K	<0.01%	+225.4%
72	STRS OHIO#72 · 88,500 sh	88,500	$708.9K	<0.01%	+70.5%
73	JB CAPITAL PARTNERS#73 · 85,000 sh	85,000	$680.9K	0.11%	0.0%
74	Inspire Investing#74 · 84,786 sh	84,786	$679.1K	—	+91.4%
75	HRT FINANCIAL#75 · 83,594 sh	83,594	$669.0K	<0.01%	-65.8%
76	Counterpoint Mutual Funds#76 · 82,785 sh	82,785	$663.1K	—	+13.3%
77	CITADEL ADVISORS#77 · 74,976 sh	74,976	$600.6K	<0.01%	+76.5%
78	Quantinno Capital Management#78 · 74,885 sh	74,885	$599.8K	<0.01%	+65.6%
79	Campbell & Investment Adviser#79 · 71,946 sh	71,946	$576.3K	0.03%	-44.6%
80	JACOBS LEVY EQUITY MANAGEMENT#80 · 70,883 sh	70,883	$567.8K	<0.01%	-23.6%
81	Aquatic Capital Management#81 · 69,563 sh	69,563	$557.2K	0.02%	New
82	Quantbot Technologies#82 · 65,677 sh	65,677	$526.1K	0.02%	+651.0%
83	Mariner#83 · 65,592 sh	65,592	$525.4K	<0.01%	-23.9%
84	ROYAL BANK OF CANADA#84 · 64,413 sh	64,413	$516.0K	<0.01%	+30.0%
85	PRUDENTIAL FINANCIAL#85 · 61,756 sh	61,756	$494.7K	<0.01%	-46.7%
86	Magnetar Financial#86 · 59,547 sh	59,547	$477.0K	<0.01%	+12.9%
87	WEALTH ENHANCEMENT ADVISORY SERVICES#87 · 53,204 sh	53,204	$443.2K	—	+6.4%
88	BARCLAYS PLC#88 · 54,929 sh	54,929	$440.0K	<0.01%	-12.8%
89	Bleakley Financial Group#89 · 54,702 sh	54,702	$438.2K	<0.01%	New
90	State of Wyoming#90 · 54,010 sh	54,010	$432.6K	0.04%	+4.7%
91	Teton Advisors#91 · 54,000 sh	54,000	$432.5K	0.25%	New
92	WINTON GROUP Ltd#92 · 50,140 sh	50,140	$401.6K	0.01%	-43.0%
93	VOYA INVESTMENT MANAGEMENT#93 · 49,442 sh	49,442	$396.0K	<0.01%	+69.0%
94	SRS Capital Advisors#94 · 48,794 sh	48,794	$390.8K	<0.01%	+451.1%
95	WELLS FARGO & COMPANY#95 · 48,032 sh	48,032	$384.7K	<0.01%	+113.0%
96	Graham Capital Management, L.P.#96 · 47,435 sh	47,435	$380.0K	<0.01%	+76.8%
97	FIFTH THIRD BANCORP#97 · 43,292 sh	43,292	$346.8K	<0.01%	+51.1%
98	Orion Porfolio Solutions#98 · 40,628 sh	40,628	$325.4K	<0.01%	New
99	MERCER GLOBAL ADVISORS#99 · 38,896 sh	38,896	$311.6K	<0.01%	-4.6%
100	ENVESTNET ASSET MANAGEMENT#100 · 35,648 sh	35,648	$285.5K	<0.01%	-1.3%

Funds that sold out of OIS in Q2 2026 (38)

Held OIS at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held OIS in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
DRIEHAUS CAPITAL MANAGEMENT1,328,078 sh	1,328,078	$15.5M
JANE STREET GROUP454,245 sh	454,245	$5.3M
Informed Momentum153,896 sh	153,896	$1.8M
Engineers Gate Manager93,777 sh	93,777	$1.1M
Integrated Quantitative Investments64,681 sh	64,681	$752.9K
ExodusPoint Capital Management62,017 sh	62,017	$721.9K
Hillsdale Investment Management57,500 sh	57,500	$669.3K
Harvest Investment Services48,320 sh	48,320	$562.4K
Dynamic Technology Lab Private Ltd32,383 sh	32,383	$376.9K
Abacus Wealth Partners31,295 sh	31,295	$364.3K
Brendel Financial Advisors29,456 sh	29,456	$342.9K
Legato Capital Management29,146 sh	29,146	$339.3K
RENAISSANCE TECHNOLOGIES28,500 sh	28,500	$331.7K
BANK OF NOVA SCOTIA28,300 sh	28,300	$329.4K
EP Wealth Advisors28,225 sh	28,225	$328.5K
BANK OF MONTREAL27,247 sh	27,247	$317.2K
Verdad Advisers23,415 sh	23,415	$272.6K
WOLVERINE ASSET MANAGEMENT19,326 sh	19,326	$225.0K
SCOTIA CAPITAL18,244 sh	18,244	$212.4K
INCEPTIONR17,805 sh	17,805	$207.3K
Centiva Capital15,911 sh	15,911	$185.2K
WELLINGTON MANAGEMENT GROUP LLP14,885 sh	14,885	$173.3K
HSBC PLC13,758 sh	13,758	$163.0K
Focus Partners Advisor Solutions13,510 sh	13,510	$157.3K
PharVision Advisers12,212 sh	12,212	$142.1K
MIRABELLA FINANCIAL SERVICES LLP12,038 sh	12,038	$140.1K
Kemnay Advisory Services8,432 sh	8,432	$98.1K
QUADRANT CAPITAL GROUP4,124 sh	4,124	$73.0K
MAI Capital Management1,488 sh	1,488	$17.3K
BARROW HANLEY MEWHINNEY & STRAUSS1,158 sh	1,158	$13.5K
Carolina Wealth Advisors518 sh	518	$6.0K
Root Financial Partners415 sh	415	$4.8K
GROUP ONE TRADING, L.P.295 sh	295	$3.4K
SIGNATUREFD153 sh	153	$1.8K
Basecamp Wealth Advisors146 sh	146	$1.7K
Wealth Preservation Advisors59 sh	59	$687.00
NORTHWESTERN MUTUAL WEALTH MANAGEMENT51 sh	51	$594.00
TWIN PEAKS WEALTH ADVISORS15 sh	15	$175.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.