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OIS · Oil States International, Inc · Shareholders & Ownership

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$8.60 +0.56 (+6.97%) At close · Oct 23
Market Cap
$518.77M
Shares
60.32M
Volume · Oct 23 1.05M Avg daily vol (3M) 696.94K

Every disclosed holder of OIS in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns OIS

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group Shares % Out
Institutional (13F) 53,307,844 88.37%
Insiders (Forms 3, 4, 5) 4,941,566 8.19%
13D/G-only blocks 2,850,253 4.73%
Remaining 777,044 -1.29%
Registered funds (N-PORT, not summed) 22,853,913 37.89%

Shares outstanding: 60,322,619, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of OIS

# Holder Shares
1
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
6,818,282
1.1
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
1,484,007
1.2
iShares Russell 2000 Value ETF
Fund S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
523,639
1.3
BlackRock Advantage Small Cap Core Fund
Fund S000039982 · Registered fund · May 29, 2026
BlackRock Funds, not summed
470,759
1.4
iShares U.S. Small-Cap Equity Factor ETF
Fund S000048624 · Registered fund · Jul 31, 2026
iShares Trust, not summed
276,040
1.5
iShares Micro-Cap ETF
Fund S000004439 · Registered fund · Jun 30, 2026
iShares Trust, not summed
192,147
2
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,006,491
2.1
DIMENSIONAL FUND ADVISORS LP
13G CIK 354204 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
3,006,491
2.2
U.S. SMALL CAP VALUE PORTFOLIO
Fund S000000987 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
725,908
2.3
Dimensional US Small Cap Value ETF
Fund S000075151 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
293,662
2.4
U.S. SMALL CAP PORTFOLIO
Fund S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
267,793
2.5
U.S. MICRO CAP PORTFOLIO
Fund S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
212,595
3
PALISADE CAPITAL MANAGEMENT, LP
13G CIK 1009006 · Registered investment adviser · Apr 11, 2024
Rule 13d-1(b), qualified institution
2,850,253
4
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,418,106
5
AMERICAN CENTURY COMPANIES INC
13F CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
2,213,177
6
TAYLOR CINDY B
Insider CIK 1198828 · Feb 20, 2026
Director, President & CEO, issuer-wide
2,205,388
7
ACADIAN ASSET MANAGEMENT LLC
13F CIK 916542 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
2,042,288
8
D. E. Shaw & Co., Inc.
13F CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
2,017,956
9
First Eagle Investment Management, LLC
13F CIK 1325447 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,005,677
9.1
First Eagle Small Cap Opportunity Fund
Fund S000072438 · Registered fund · Jul 31, 2026
First Eagle Funds, not summed
1,898,163
10
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,980,909
10.1
State Street(R) SPDR(R) S&P(R) Oil & Gas Equipment & Services ETF
Fund S000012334 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
646,861
10.2
State Street Institutional Small-Cap Equity Fund
Fund S000001631 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL FUNDS, not summed
21,578
10.3
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
20,566
10.4
State Street Total Return V.I.S. Fund
Fund S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
1,300
10.5
State Street Small-Cap Equity V.I.S. Fund
Fund S000001636 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
967
11
AQR CAPITAL MANAGEMENT LLC
13F CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,736,910
11.1
AQR Small Cap Multi-Style Fund
Fund S000040064 · Registered fund · Jun 30, 2026
AQR Funds, not summed
24,143
11.2
AQR Small Cap Momentum Style Fund
Fund S000025644 · Registered fund · Mar 31, 2026
AQR Funds, not summed
3,940
12
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,718,766
13
Avantis U.S. Small Cap Value ETF
Fund S000066459 · Registered fund · May 31, 2026
American Century ETF Trust, not summed
1,718,253
14
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,625,098
15
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,445,708
16
TWO SIGMA INVESTMENTS, LP
13F CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,444,776
17
KENNEDY CAPITAL MANAGEMENT LLC
13F CIK 884589 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,291,140
17.1
Kennedy Capital Small Cap Value Fund
Fund S000076118 · Registered fund · Jun 30, 2026
INVESTMENT MANAGERS SERIES TRUST II, not summed
26,772
18
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,206,130
18.1
E*TRADE No Fee Total Market Index Fund
Fund S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
579
19
Qube Research & Technologies Ltd
13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,122,386
20
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC
13F CIK 1164833 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,100,201
20.1
Hotchkis and Wiley Small Cap Diversified Value Fund
Fund S000045868 · Registered fund · Jun 30, 2026
HOTCHKIS & WILEY FUNDS/DE/, not summed
289,900
21
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,083,987
21.1
Schwab Fundamental U.S. Small Company ETF
Fund S000040878 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
586,956
21.2
Schwab Small-Cap Equity Fund
Fund S000005516 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
232,450
21.3
Schwab Small-Cap Index Fund
Fund S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
138,939
21.4
Schwab Fundamental U.S. Small Company Index Fund
Fund S000016767 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
133,464
21.5
Schwab Total Stock Market Index Fund
Fund S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
55,816
22
BRIDGEWAY CAPITAL MANAGEMENT, LLC
13F CIK 1107261 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
840,237
22.1
Omni Small-Cap Value Fund
Fund S000033567 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
245,700
22.2
Small-Cap Value Fund
Fund S000004427 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
160,000
22.3
Ultra-Small Company Market Fund
Fund S000004424 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
25,000
23
ALGERT GLOBAL LLC
13F CIK 1275218 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
813,971
24
HAJDIK LLOYD A
Insider CIK 1281566 · May 1, 2026
Executive VP, CFO & Treasurer, issuer-wide
737,390
25
Moses Philip Scott
Insider CIK 1645925 · May 1, 2026
EVP, Chief Operating Officer, issuer-wide
737,343
26
VANGUARD ENERGY INDEX FUND
Fund S000004448 · Registered fund · May 31, 2026
VANGUARD WORLD FUND, not summed
713,107
27
MILLENNIUM MANAGEMENT LLC
13F CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
667,842
28
FEDERATED HERMES, INC.
13F CIK 1056288 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
651,708
29
PANAGORA ASSET MANAGEMENT INC
13F CIK 883677 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
650,275
30
UBS Group AG
13F CIK 1610520 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
646,012
31
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
632,419
32
Trexquant Investment LP
13F CIK 1633445 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
602,932
33
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
558,454
33.1
Fidelity Small Cap Index Fund
Fund S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
623,070
33.2
Fidelity Enhanced Small Cap Core ETF
Fund S000081807 · Registered fund · Jun 30, 2026
Fidelity Covington Trust, not summed
430,611
33.3
Fidelity Extended Market Index Fund
Fund S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
290,724
33.4
VIP Disciplined Small Cap Portfolio
Fund S000007725 · Registered fund · Jun 30, 2026
Variable Insurance Products Fund II, not summed
105,440
33.5
Fidelity Total Market Index Fund
Fund S000006026 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
102,817
34
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
542,442
34.1
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
79,300
34.2
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Aug 31, 2026
GOLDMAN SACHS TRUST, not summed
10,403
35
FRANKLIN RESOURCES INC
13F CIK 38777 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
533,744
35.1
FRANKLIN RESOURCES INC
13G CIK 38777 · Investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
533,744
35.2
Putnam Dynamic Asset Allocation Growth Fund
Fund S000000780 · Registered fund · Jun 30, 2026
Putnam Asset Allocation Funds, not summed
56,074
35.3
Putnam Dynamic Asset Allocation Balanced Fund
Fund S000000778 · Registered fund · Jun 30, 2026
Putnam Asset Allocation Funds, not summed
38,280
35.4
Putnam Dynamic Asset Allocation Conservative Fund
Fund S000000779 · Registered fund · Jun 30, 2026
Putnam Asset Allocation Funds, not summed
6,044
35.5
Putnam Multi-Asset Income Fund
Fund S000067964 · Registered fund · May 31, 2026
Putnam Asset Allocation Funds, not summed
3,620
36
Federated Hermes MDT Small Cap Core Fund
Fund S000012972 · Registered fund · Jul 31, 2026
Federated Hermes MDT Series, not summed
518,488
37
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
498,126
37.1
Small Cap Index Fund
Fund S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
28,981
37.2
Small Cap Core Fund
Fund S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
3,818
38
AMERIPRISE FINANCIAL INC
13F CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
459,434
38.1
Columbia Integrated Small Cap Growth Fund
Fund S000074122 · Registered fund · May 31, 2026
Columbia Funds Series Trust II, not summed
10,314
38.2
Columbia Research Enhanced Small Cap ETF
Fund S000095313 · Registered fund · Jun 30, 2026
Columbia ETF Trust I, not summed
81
39
NORGES BANK
13F CIK 1374170 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
445,100
40
Empowered Funds, LLC
13F CIK 1592828 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
409,537
40.1
EA Bridgeway Omni Small-Cap Value ETF
Fund S000078089 · Registered fund · Jun 30, 2026
EA Series Trust, not summed
409,537
41
Connor, Clark & Lunn Investment Management Ltd.
13F CIK 1596800 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
404,650
42
Squarepoint Ops LLC
13F CIK 1642575 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
399,706
43
Russell Investments Group, Ltd.
13F CIK 1692234 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
378,012
43.1
Tax-Managed U.S. Mid & Small Cap Fund
Fund S000001571 · Registered fund · Jul 31, 2026
RUSSELL INVESTMENT CO, not summed
127,995
43.2
U.S. Small Cap Equity Fund
Fund S000001586 · Registered fund · Jul 31, 2026
RUSSELL INVESTMENT CO, not summed
16,260
43.3
U.S. Small Cap Equity Fund
Fund S000006864 · Registered fund · Jun 30, 2026
RUSSELL INVESTMENT FUNDS, not summed
14,881
44
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
369,431
45
Hara Capital LLC
13F CIK 2010015 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
335,818
46
Bank of New York Mellon Corp
13F CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
329,168
47
DEUTSCHE BANK AG\
13F CIK 948046 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
309,870
47.1
DWS Small Cap Index VIP
Fund S000006223 · Registered fund · Jun 30, 2026
DEUTSCHE DWS INVESTMENTS VIT FUNDS, not summed
8,991
48
VANGUARD STRATEGIC SMALL-CAP EQUITY FUND
Fund S000012432 · Registered fund · Jun 30, 2026
VANGUARD HORIZON FUNDS, not summed
306,572
49
GENDELL JEFFREY L
13F CIK 1056581 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
298,317
50
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
13F CIK 912938 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
293,356
50.1
MFS Blended Research Small Cap Equity Fund
Fund S000050659 · Registered fund · May 31, 2026
MFS SERIES TRUST X, not summed
193,276
50.2
MFS Blended Research Small Cap Equity Portfolio
Fund S000008071 · Registered fund · Jun 30, 2026
MFS VARIABLE INSURANCE TRUST III, not summed
48,698

37 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 317 holders

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Key facts CIK 1121484 CUSIP 678026105 13F (30d) 25 filings 25 filers Visit website Investor relations