Oklo Inc.
OKLO- Exchange
- NYSE
- Industry
- Electric Services
- SEC CIK
- 0001849056
In the last 90 days, Oklo Inc. insiders filed 0 open-market purchases and 19 sales; 673 institutions reported holding it in 13F filings for Q2 2026, worth $4.36B in total; ARK Invest is the only superinvestor holding it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $43.4M in total
- 19
- 13F holdersQ2 2026, +3 vs. previous quarter
- 673
- 13F valueReported value at the end of Q2 2026
- $4.36B
- Superinvestors holdingAt the end of Q2 2026
- 1
Price chart
Superinvestors holding OKLO, Q2 2026
1 superinvestor reports holding Oklo Inc. on Form 13F. Percentages are the stock's share of each portfolio.
Latest insider trades
Open-market purchases and sales by Oklo Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 15, 2026 (view filing)4:27 PM ET | Sep 14 | 1 day | Jansen John MDirector | SSaleClass A Common Stock | −6.35K | $36.67 | −$233.0K | −51.4%6.00K after | |
| Sep 10, 2026 (view filing)4:34 PM ET | Sep 9 | 1 day | Narayanadas VivekGeneral Counsel & Secretary | SSaleClass A Common Stock | −365 | $43.31 | −$15.8K | −4.3%8.16K after | 10b5-1 |
| Sep 9, 2026 (view filing)4:28 PM ET | Sep 8 | 1 day | Narayanadas VivekGeneral Counsel & Secretary | SSaleClass A Common Stock | −238 | $42.06 | −$10.0K | −2.7%8.52K after | 10b5-1 |
| Sep 8, 2026 (view filing)4:24 PM ET | Sep 4 | 4 days | Narayanadas VivekGeneral Counsel & Secretary | SSaleClass A Common Stock | −538 | $39.88 | −$21.5K | −6.2%8.07K after | 10b5-1 |
| Sep 3, 2026 (view filing)4:24 PM ET | Sep 1 | 2 days | Bealmear Richard CraigChief Financial Officer | SSaleClass A Common Stock | −16.4K | $38.76 | −$636.8K | −3.5%456.0K after | 10b5-1 |
| Sep 3, 2026 (view filing)4:23 PM ET | Sep 1 | 2 days | Renner AlexandraChief Product Officer | SSaleClass A Common Stock | −1.93K | $38.40 | −$74.1K | −0.4%475.0K after | |
| Sep 2, 2026 (view filing)4:31 PM ET | Sep 1 | 1 day | Cochran CarolineCo-Founder, COO | SSaleClass A Common Stock | −40.0K | $38.66 | −$1.55M | −9.1%398.0K after | |
| Sep 2, 2026 (view filing)4:31 PM ET | Sep 1 | 1 day | Cochran CarolineCo-Founder, COO | SSaleClass A Common Stock | −80.0K | $38.56 | −$3.08M | −13.9%496.5K after | 4 lots |
| Sep 2, 2026 (view filing)4:29 PM ET | Sep 1 | 1 day | DeWitte JacobCo-Founder, CEO | SSaleClass A Common Stock | −40.0K | $38.40 | −$1.54M | −8.5%431.5K after | |
| Sep 2, 2026 (view filing)4:29 PM ET | Sep 1 | 1 day | DeWitte JacobCo-Founder, CEO | SSaleClass A Common Stock | −80.0K | $38.69 | −$3.10M | −13.1%529.5K after | 4 lots |
Top 10 13F holders, Q2 2026
The largest institutional positions in Oklo Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mirae Asset Global ETFs Holdings Ltd. | 8,935,822 | $467.6M | 0.56% | +79,326+0.9% | Added |
| Van Eck Associates Corp | 7,912,353 | $414.1M | 0.25% | +1,830,836+30.1% | Added |
| BlackRock, Inc. | 7,311,968 | $382.6M | 0.01% | −8,595,544−54.0% | Reduced |
| Vanguard Capital Management LLC | 6,539,334 | $342.2M | 0.01% | +708,401+12.1% | Added |
| Vanguard Portfolio Management LLC | 6,425,515 | $336.2M | 0.02% | +187,597+3.0% | Added |
| Morgan Stanley | 3,262,878 | $170.7M | 0.01% | +581,140+21.7% | Added |
| State Street Corp | 2,378,058 | $124.4M | 0.00% | −948,084−28.5% | Reduced |
| Geode Capital Management, LLC | 2,364,428 | $123.8M | 0.01% | −689,721−22.6% | Reduced |
| Cantor Fitzgerald, L. P. | 2,182,276 | $114.2M | 1.11% | +1,697,735+350.4% | Added |
| UBS Group AG | 2,095,153 | $109.6M | 0.02% | +888,854+73.7% | Added |