Oil States International, Inc.
Oil States International, Inc. (OIS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · OIS · as of Sep 30, 2025
Ownership Breakdown
161
Institutional Holders
▲ 9 vs Q2
$322.13M
Total Inst. Value
▲ $44.52M vs Q2
60.19M
Shares Outstanding
freeFloat 91.80%
53.16M
13F Shares Held
▲ 1.36M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
OIS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. oil & gas field machinery & equipment | 6.55M | 11.08% | 11.08% | $39.71B | Nov 12, 2025 | ▼ 210.0K |
VANGUARD GROUP INC oil & gas field machinery & equipment | 4.50M | 7.60% | 7.60% | $27.26B | Nov 7, 2025 | ▲ 192.0K |
DIMENSIONAL FUND ADVISORS LP oil & gas field machinery & equipment | 3.56M | 6.02% | 6.02% | $21.59B | Nov 12, 2025 | ▲ 85.8K |
D. E. SHAW & CO., INC. oil & gas field machinery & equipment | 2.82M | 4.76% | 4.76% | $17.08B | Nov 14, 2025 | ▼ 152.8K |
FIRST EAGLE INVESTMENT MANAGEMENT, LLC oil & gas field machinery & equipment | 2.61M | 4.40% | 4.40% | $15.79B | Nov 12, 2025 | ▲ 16.8K |
ACADIAN ASSET MANAGEMENT LLC oil & gas field machinery & equipment | 2.48M | 4.19% | 4.19% | $15.02B | Nov 13, 2025 | ▲ 45.4K |
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC oil & gas field machinery & equipment | 1.81M | 3.06% | 3.06% | $10.97B | Nov 14, 2025 | ▲ 184.5K |
GENDELL JEFFREY L oil & gas field machinery & equipment | 1.64M | 2.77% | 2.77% | $9.92B | Nov 14, 2025 | ▲ 30.0K |
AQR CAPITAL MANAGEMENT LLC oil & gas field machinery & equipment | 1.54M | 2.60% | 2.60% | $9.33B | Nov 14, 2025 | ▲ 305.1K |
STATE STREET CORP oil & gas field machinery & equipment | 1.50M | 2.54% | 2.54% | $9.11B | Nov 14, 2025 | ▼ 115.6K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
31
Increased
+4.38M shares2
New Positions
first time holders15
Decreased
−2.76M shares0
Sold Out
fully exitedNet shares change (top 50)
+1.61M
+4.38M / −2.76M
Net new holders
+18
2 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
OIS insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
9
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Wright E Joseph director | May 12, 2026 | Award | 16,760 | — | — | 163.3K | Form 4 ↗ |
Vanderhider Hallie A. director | May 12, 2026 | Award | 16,760 | — | — | 160.9K | Form 4 ↗ |
POTTER ROBERT L director | May 12, 2026 | Award | 16,760 | — | — | 225.1K | Form 4 ↗ |
Hollek Darrell E director | May 12, 2026 | Award | 16,760 | — | — | 120.8K | Form 4 ↗ |
DICKERSON LAWRENCE R director | May 12, 2026 | Award | 16,760 | — | — | 175.6K | Form 4 ↗ |
Castillo-Rhodes Denise director | May 12, 2026 | Award | 16,760 | — | — | 140.7K | Form 4 ↗ |
Autenrieth Matthew Earl Executive VP, CFO & Treasurer | May 1, 2026 | Award | 35,619 | — | — | 59.4K | Form 4 ↗ |
Moses Philip Scott EVP, Chief Operating Officer | May 1, 2026 | Award | 13,357 | — | — | 737.3K | Form 4 ↗ |
HAJDIK LLOYD A President & CEO | May 1, 2026 | Award | 66,785 | — | — | 737.4K | Form 4 ↗ |
POTTER ROBERT L director | Mar 31, 2026 | Award | 1,074 | $11.64 | $12.5K | 208.3K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Oil States International, Inc. (OIS) is primarily owned by institutional investors, who hold approximately 88.3% of total shares outstanding. Company insiders own approximately 8.20%, while retail and public investors account for the remaining 3.49%.
The largest institutional shareholder of Oil States International, Inc. is BLACKROCK, INC., holding approximately 6.55 million shares — equal to 11.08% of outstanding shares — as of September 30, 2025.
A total of 161 institutional investors currently hold OIS stock, with a combined institutional value of approximately $322,127,280 as of the most recent 13F filing period.
Frequently asked questions
OIS ownershipOil States International, Inc. (OIS) is primarily owned by institutional investors, who hold approximately 88.3% of shares. The largest shareholder is BLACKROCK, INC. with a 11.08% stake. Company insiders hold 8.20%. Data sourced from SEC Form 13F as of September 30, 2025.