As of May 14, 2026, the three largest insider holders of OKLO are Caroline Cochran (Co Founder, Coo, 16.42Mn shares), Jacob Dewitte (Co Founder, Ceo, 16.42Mn shares), Michael Stuart Klein (Director, 13.95Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Caroline Cochran | Co Founder, Coo | 0 | 16,415,804 | 01 Apr, 2026 |
| Jacob Dewitte | Co Founder, Ceo | 0 | 16,415,804 | 01 Apr, 2026 |
| Michael Stuart Klein | - | 0 | 13,950,000 | 02 Jul, 2024 |
| Samuel H. Altman | - | 0 | 3,732,479 | 21 Nov, 2024 |
| Caroline Cochran | Co Founder, Coo | 658,039 | 2,037,495 | 03 Apr, 2026 |
| Jacob Dewitte | Co Founder, Ceo | 691,533 | 2,004,001 | 03 Apr, 2026 |
| Michael Stuart Klein | Chairman | 0 | 1,435,500 | 14 Jul, 2021 |
| Richard Craig Bealmear | Chief Financial Officer | 391,762 | 0 | 03 Apr, 2026 |
| Michael Stuart Klein | - | 0 | 200,000 | 25 Jun, 2025 |
| Michael Stuart Klein | - | 0 | 150,000 | 24 Sep, 2025 |
| William Carroll Murphy Goodwin | Chief Legal Strategy Officer | 26,037 | 0 | 25 Mar, 2026 |
| Patrick Joseph Schweiger | Chief Technology Officer | 19,430 | 0 | 25 Mar, 2026 |
| Patrick Joseph Schweiger | Chief Technology Officer | 19,430 | 0 | 25 Mar, 2026 |
| Richard Kinzley | - | 0 | 15,754 | 30 Mar, 2026 |
| John M Jansen | - | 12,354 | 0 | 30 Mar, 2026 |
| Richard Kinzley | - | 3,800 | 0 | 12 Mar, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 10 Apr, 2026 | David G Park | Restricted Stock Units | A | 4,699 | $0.00 | 4,699 | D | A |
| 10 Apr, 2026 | Derek T. Kan | Restricted Stock Units | A | 4,699 | $0.00 | 4,699 | D | A |
| 10 Apr, 2026 | Mark T Peters | Restricted Stock Units | A | 4,699 | $0.00 | 4,699 | D | A |
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 13,473 | $48.41 | 704,566 | D | S |
| 01 Apr, 2026 | Richard Craig Bealmear | Class A Common Stock | A | 16,342 | $3.18 | 402,350 | D | M |
| 01 Apr, 2026 | Jacob Dewitte | Class A Common Stock | D | 13,473 | $48.41 | 738,060 | D | S |
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 10,516 | $49.58 | 694,050 | D | S |
| 01 Apr, 2026 | Richard Craig Bealmear | Class A Common Stock | D | 16,342 | $51.08 | 386,008 | D | S |
| 01 Apr, 2026 | Jacob Dewitte | Class A Common Stock | D | 10,516 | $49.58 | 727,544 | D | S |
| 01 Apr, 2026 | Jacob Dewitte | Class A Common Stock | D | 9,068 | $50.93 | 718,476 | D | S |
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 9,068 | $50.93 | 684,982 | D | S |
| 02 Apr, 2026 | Richard Craig Bealmear | Class A Common Stock | A | 5,754 | $3.18 | 391,762 | D | M |
| 01 Apr, 2026 | Richard Craig Bealmear | Stock Options | D | 16,342 | $0.00 | 830,253 | D | M |
| 01 Apr, 2026 | Jacob Dewitte | Class A Common Stock | D | 26,943 | $51.20 | 691,533 | D | S |
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 26,943 | $51.20 | 658,039 | D | S |
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 40,000 | $50.50 | 689,479 | I | S |
| 02 Apr, 2026 | Richard Craig Bealmear | Stock Options | D | 5,754 | $0.00 | 824,499 | D | M |
| 01 Apr, 2026 | Jacob Dewitte | Class A Common Stock | D | 40,000 | $50.50 | 656,483 | I | S |
| 01 Apr, 2026 | Jacob Dewitte | Class A Common Stock | D | 13,473 | $48.41 | 704,566 | I | S |
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 13,473 | $48.41 | 738,060 | I | S |