Institutional Ownership
Oil Sts Intl Inc
CUSIP 678026105COMOISQ1 2026
13D / 13G Filings
33
Schedule 13D/13G on record
Beneficial Filers
11
Distinct reporting persons
Largest Stake
18.8%
Max % of class reported
Institutional Holders
207
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
33 filings · latest Jul 29, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Jul 29, 2025 | The Vanguard Group | 13G/A | 7.0% | 4.31M | SEC |
| 2 | Apr 24, 2025 | Blackrock, Inc. | 13G/A | 7.4% | 4.60M | SEC |
| 3 | Apr 15, 2025 | Dimensional Fund Advisors LP | 13G | 5.1% | 3.20M | SEC |
| 4 | Nov 12, 2024 | Vanguard Group Inc | 13G/A | 5.7% | 3.64M | SEC |
| 5 | Nov 4, 2024 | Vanguard Group Inc | 13G/A | 5.7% | 3.64M | SEC |
| 6 | Oct 31, 2024 | Dimensional Fund Advisors LP | 13G/A | 4.7% | 2.98M | SEC |
| 7 | Apr 16, 2024 | Palisade Capital Management, LP | 13G/A | 4.5% | 2.85M | SEC |
| 8 | Apr 5, 2024 | Blackrock Inc. | 13G/A | 11.0% | 7.05M | SEC |
| 9 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 6.7% | 4.29M | SEC |
| 10 | Feb 9, 2024 | Dimensional Fund Advisors LP | 13G | 6.6% | 4.23M | SEC |
23 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Oil Sts Intl Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 6.31M | $73.44M |
| 2 | Dimensional Fund Advisors LP | 3.52M | $41.00M |
| 3 | D. E. Shaw & Co., Inc. | 2.17M | $25.23M |
| 4 | First Eagle Investment Management, LLC | 2.04M | $23.79M |
| 5 | American Century Companies Inc | 1.85M | $21.51M |
| 6 | Aqr Capital Management LLC | 1.82M | $21.24M |
| 7 | State Street Corp | 1.73M | $20.18M |
| 8 | Geode Capital Management, LLC | 1.36M | $15.81M |
| 9 | Morgan Stanley | 1.35M | $15.72M |
| 10 | Driehaus Capital Management LLC | 1.33M | $15.46M |