Institutional Ownership
Oklo Inc
CUSIP 02156V109COM CL AOKLOQ1 2026
13D / 13G Filings
43
Schedule 13D/13G on record
Beneficial Filers
18
Distinct reporting persons
Largest Stake
21.8%
Max % of class reported
Institutional Holders
663
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
43 filings · latest Jan 21, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Jan 21, 2026 | Blackrock, Inc. | 13G/A | 9.2% | 14.42M | SEC |
| 2 | Oct 31, 2025 | The Vanguard Group | 13G/A | 7.8% | 11.59M | SEC |
| 3 | Oct 17, 2025 | Blackrock, Inc. | 13G | 5.5% | 8.08M | SEC |
| 4 | Jul 29, 2025 | The Vanguard Group | 13G | 5.9% | 8.69M | SEC |
| 5 | Jul 2, 2025 | Jacob Dewitte | 13D/A | 16.2% | — | SEC |
| 6 | Apr 4, 2025 | Samuel H. Altman | 13D/A | 4.8% | — | SEC |
| 7 | Apr 2, 2025 | Jacob Dewitte | 13D/A | 18.2% | — | SEC |
| 8 | Feb 14, 2025 | Encompass Capital Advisors LLC | 13G/A | — | — | SEC |
| 9 | Feb 14, 2025 | Data Collective IV, L.P. | 13G/A | 11.0% | 5.38M | SEC |
| 10 | Feb 14, 2025 | Altc Sponsor LLC | 13G/A | 11.0% | 500.0K | SEC |
33 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Oklo Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 15.91M | $788.85M |
| 2 | Mirae Asset Global Etfs Holdings Ltd. | 8.86M | $439.19M |
| 3 | Defiance Etfs, LLC | 3.64M | $180.66M |
| 4 | State Street Corp | 3.33M | $164.94M |
| 5 | Geode Capital Management, LLC | 3.05M | $151.19M |
| 6 | Morgan Stanley | 2.68M | $132.99M |
| 7 | Alyeska Investment Group, L.P. | 1.71M | $84.78M |
| 8 | Ubs Group AG | 1.21M | $59.82M |
| 9 | Charles Schwab Investment Management Inc | 1.19M | $58.80M |
| 10 | Northern Trust Corp | 1.15M | $57.18M |