Oil States Ownership | Who Owns Oil States?

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Oil States Ownership Summary

Oil States is owned by 93.79% institutional investors, 7.96% insiders. Blackrock is the largest institutional shareholder, holding 11.50% of OIS shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.10% of its assets in Oil States shares.

OIS Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Oil States	93.79%	7.96%	-1.74%
Sector	Energy Stocks	79.40%	16.36%	4.25%
Industry	Oil & Gas Equipment & Services Stocks	44.26%	15.75%	40.00%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	7.19M	11.50%	$31.91M
Blackrock funding, inc. /de	6.31M	10.75%	$73.44M
Vanguard group	4.48M	7.73%	$30.33M
Dimensional fund advisors lp	3.52M	6.00%	$41.00M
Acadian asset management	2.35M	4.01%	$27.37M
D. e. shaw	2.17M	3.69%	$25.23M
First eagle investment management	2.04M	3.48%	$23.79M
American century companies	1.85M	3.15%	$21.51M
Aqr capital management	1.82M	3.11%	$21.24M
State street	1.73M	2.95%	$20.18M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Hara capital	336.83K	1.96%	$3.92M
Pharvision advisers	12.21K	1.44%	$142.15K
Verdad advisers, lp	23.41K	0.31%	$272.55K
Kennedy capital management	1.08M	0.27%	$12.55M
Eam investors	153.90K	0.21%	$1.79M
Bridgeway capital management	832.90K	0.20%	$9.70M
Jb capital partners lp	85.00K	0.17%	$989.40K
Brendel financial advisors	29.46K	0.17%	$342.87K
Integrated quantitative investments	64.68K	0.14%	$752.89K
Counterpoint mutual funds	73.08K	0.13%	$850.70K

Top Buyers

Holder	Shares	% Assets	Change
Driehaus capital management	1.33M	0.11%	1.33M
Marshall wace, llp	932.77K	0.01%	932.77K
Millennium management	704.41K	0.00%	692.02K
Two sigma investments, lp	1.07M	0.01%	475.59K
Morgan stanley	1.35M	0.00%	368.32K

Top Sellers

Holder	Shares	% Assets	Change
Palisade capital management, lp	-	-	-3.82M
Balyasny asset management	-	-	-1.63M
Gendell jeffrey l	298.32K	0.05%	-1.27M
Hotchkis & wiley capital management	1.00M	0.04%	-702.85K
First eagle investment management	2.04M	0.03%	-537.97K

New Positions

Holder	Shares	% Assets	Change	Value
Driehaus capital management	1.33M	0.11%	1.33M	$15.46M
Marshall wace, llp	932.77K	0.01%	932.77K	$10.86M
Vanguard fiduciary trust	365.05K	0.00%	365.05K	$4.25M
O'shaughnessy asset management	157.73K	0.01%	157.73K	$1.84M
Eam investors	153.90K	0.21%	153.90K	$1.79M

Sold Out

Holder	Change
Nelson, van denburg & campbell wealth management group	-13.00
Jones financial companies lllp	-16.00
Clearstead advisors	-46.00
Principal securities	-60.00
Allspring global investments	-66.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	211	17.22%	53,946,791	4.95%	93	1.19%	130	42.86%	57	-13.64%
Dec 31, 2025	84	-47.17%	23,516,200	-55.75%	40	0.50%	39	-55.68%	29	-40.82%
Sep 30, 2025	73	-51.66%	21,620,983	-58.25%	36	0.48%	38	-55.29%	22	-58.49%
Jun 30, 2025	150	-3.85%	51,720,396	1.55%	87	1.22%	85	-7.61%	53	10.42%
Mar 31, 2025	156	4.00%	50,894,609	3.61%	84	1.35%	92	22.67%	48	-14.29%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	1.92M	3.10%	-
First Eagle US Small Cap Strategy	1.78M	2.96%	-490.93K
First Eagle Small Cap Opportunity I	1.76M	2.92%	-43.80K
Vanguard Total Stock Mkt Idx Inv	1.73M	2.87%	-
Avantis US Small Cap Value ETF	1.59M	2.64%	-
iShares Russell 2000 ETF	1.33M	2.21%	11.23K
DFA US Small Cap Value I	784.75K	1.30%	-
Vanguard Energy ETF	714.21K	1.19%	-16.37K
Schwab Fundamental U.S. Small CompanyETF	681.00K	1.13%	4.55K
Kennedy Small Cap Value	650.85K	1.09%	111.70K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Mar 31, 2026	Hollek Darrell E	-	Sell	$493.55K
Dec 16, 2025	TAYLOR CINDY B	President & CEO	Sell	$99.63K
Sep 23, 2022	Moses Philip Scott	EVP, Chief Operating Officer	Buy	$5.78K
Sep 23, 2022	Moses Philip Scott	EVP, Chief Operating Officer	Buy	$23.54K
Sep 23, 2022	Moses Philip Scott	EVP, Chief Operating Officer	Buy	$7.65K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	-
2026 Q1	-	1
2025 Q4	-	1
2025 Q3	-	-
2025 Q2	-	-

OIS Ownership FAQ

Who Owns Oil States?

Oil States shareholders are primarily institutional investors at 93.79%, followed by 7.96% insiders and -1.75% retail investors. The average institutional ownership in Oil States's industry, Oil & Gas Equipment & Services Stocks, is 44.26%, which Oil States exceeds.

Who owns the most shares of Oil States?

Oil States’s largest shareholders are Blackrock (7.19M shares, 11.50%), Blackrock funding, inc. /de (6.31M shares, 10.75%), and Vanguard group (4.48M shares, 7.73%). Together, they hold 29.98% of Oil States’s total shares outstanding.

Does Blackrock own Oil States?

Yes, BlackRock owns 11.50% of Oil States, totaling 7.19M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 31.91M$. In the last quarter, BlackRock increased its holdings by 135.78K shares, a 1.93% change.

Who is Oil States’s biggest shareholder by percentage of total assets invested?

Hara capital is Oil States’s biggest shareholder by percentage of total assets invested, with 1.96% of its assets in 336.83K Oil States shares, valued at 3.92M$.

Who is the top mutual fund holder of Oil States shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Oil States shares, with 3.10% of its total shares outstanding invested in 1.92M Oil States shares.

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