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 $4.27B in total; ARK Invest is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in Oklo Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 679
- +10 vs. Q4 2025
- Shares held
- 89.3M
- +27.2M (+43.7%) vs. Q4 2025
- Total value
- $4.43B
- −$26.6M (−0.6%) vs. Q4 2025
- New holders
- 135
- 287 more added
- Sold out
- 125
- 161 more reduced
14 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting OKLO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 673 | $4.27B |
| Q1 2026 | 679 | $4.43B |
| Q4 2025 | 683 | $5.37B |
| Q3 2025 | 640 | $7.24B |
| Q2 2025 | 481 | $3.03B |
| Q1 2025 | 292 | $747.1M |
| Q4 2024 | 238 | $882.1M |
| Q3 2024 | 124 | $387.2M |
| Q2 2024 | 93 | $338.6M |
| Q1 2024 | 54 | $270.8M |
| Q4 2023 | 37 | $274.8M |
| Q3 2023 | 65 | $433.8M |
| Q2 2023 | 75 | $439.5M |
| Q1 2023 | 72 | $488.4M |
| Q4 2022 | 73 | $466.4M |
| Q3 2022 | 77 | $474.3M |
| Q2 2022 | 73 | $470.7M |
| Q1 2022 | 69 | $464.4M |
| Q4 2021 | 68 | $462.7M |
| Q3 2021 | 70 | $464.4M |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Oklo Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 15,907,512 | $788.9M | 0.01% | +1,087,078+7.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 8,856,496 | $439.2M | 0.60% | +1,033,259+13.2% | Added |
| Vanguard Portfolio Management LLC | 6,237,918 | $309.3M | 0.02% | +6,237,918 | New |
| Van Eck Associates Corp | 6,081,517 | $301.6M | 0.23% | +2,125,236+53.7% | Added |
| Vanguard Capital Management LLC | 5,830,933 | $289.2M | 0.01% | +5,830,933 | New |
| Defiance ETFs, LLC | 3,643,044 | $180.7M | 2.60% | +3,643,044 | New |
| State Street Corp | 3,326,142 | $164.9M | 0.01% | +265,922+8.7% | Added |
| Geode Capital Management, LLC | 3,054,149 | $151.2M | 0.01% | +238,142+8.5% | Added |
| Morgan Stanley | 2,681,738 | $133.0M | 0.01% | +797,647+42.3% | Added |
| Alyeska Investment Group, L.P. | 1,709,692 | $84.8M | 0.24% | +1,709,692 | New |
| UBS Group AG | 1,206,299 | $59.8M | 0.01% | +203,219+20.3% | Added |
| Charles Schwab Investment Management Inc | 1,185,731 | $58.8M | 0.01% | +25,453+2.2% | Added |
| Northern Trust Corp | 1,153,066 | $57.2M | 0.01% | +133,781+13.1% | Added |
| Goldman Sachs Group Inc | 1,041,926 | $51.7M | 0.01% | +132,663+14.6% | Added |
| Vanguard Fiduciary Trust Co | 820,630 | $40.7M | 0.01% | +820,630 | New |
| Susquehanna International Group, LLP | 665,979 | $33.0M | 0.04% | +628,977+1,699.8% | Added |
| Bank of America Corp | 620,281 | $30.8M | 0.00% | +220,976+55.3% | Added |
| National Bank of Canada | 609,164 | $30.2M | 0.03% | +526,944+640.9% | Added |
| Marex Group plc | 589,864 | $29.3M | 0.30% | −198,187−25.1% | Reduced |
| Portland Investment Counsel Inc. | 589,480 | $29.2M | 9.38% | −33,350−5.4% | Reduced |
| Hood River Capital Management LLC | 589,294 | $29.2M | 0.29% | +589,294 | New |
| Capital World Investors | 537,354 | $26.6M | 0.00% | +31,416+6.2% | Added |
| Bank of Montreal | 537,170 | $26.6M | 0.01% | −169,103−23.9% | Reduced |
| LPL Financial LLC | 533,951 | $26.5M | 0.01% | +32,336+6.4% | Added |
| Jane Street Group, LLC | 533,000 | $26.4M | 0.03% | +533,000 | New |
| Bank of New York Mellon Corp | 516,886 | $25.6M | 0.00% | +5,945+1.2% | Added |
| Clear Street Group Inc. | 499,442 | $24.8M | 0.14% | −342,730−40.7% | Reduced |
| Cantor Fitzgerald, L. P. | 484,541 | $24.0M | 0.87% | −306,260−38.7% | Reduced |
| Nuveen, LLC | 461,143 | $22.9M | 0.01% | +121,734+35.9% | Added |
| UBS Asset Management Americas Inc | 451,280 | $22.4M | 0.00% | +36,510+8.8% | Added |
| Deutsche Bank AG | 397,806 | $19.7M | 0.01% | +45,702+13.0% | Added |
| Raymond James Financial Inc | 353,804 | $17.5M | 0.01% | +35,221+11.1% | Added |
| Wells Fargo & Company | 351,727 | $17.4M | 0.00% | −5,446−1.5% | Reduced |
| ARK Investment Management LLCSuperinvestorARK Invest | 351,169 | $17.4M | 0.14% | +128,124+57.4% | Added |
| BNP Paribas Arbitrage, SA | 331,540 | $16.4M | 0.01% | +197,774+147.9% | Added |
| Mirae Asset Global Investments Co., Ltd. | 331,391 | $16.4M | 0.05% | −13,846−4.0% | Reduced |
| Swiss National Bank | 324,900 | $16.1M | 0.01% | +21,400+7.1% | Added |
| Legal & General Group Plc | 318,061 | $15.8M | 0.00% | +19,456+6.5% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 303,775 | $15.1M | 0.03% | +229,017+306.3% | Added |
| Exchange Traded Concepts, LLC | 298,995 | $14.8M | 0.11% | +39,269+15.1% | Added |
| JPMorgan Chase & Co | 307,055 | $14.0M | 0.00% | +3,363+1.1% | Added |
| Barclays PLC | 280,471 | $13.9M | 0.00% | −120,302−30.0% | Reduced |
| American Century Companies Inc | 254,218 | $12.6M | 0.01% | +254,218 | New |
| Citadel Advisors LLC | 249,676 | $12.4M | 0.01% | +31,204+14.3% | Added |
| Wedbush Fund Advisers, LLC | 230,516 | $11.4M | 1.32% | +47,573+26.0% | Added |
| Cardiff Park Advisors, LLC | 223,350 | $11.1M | 0.89% | +100.0% | Added |
| Man Group plc | 209,758 | $10.4M | 0.02% | −127,083−37.7% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 206,946 | $10.3M | 0.01% | −15,564−7.0% | Reduced |
| CI Private Wealth, LLC | 204,753 | $10.1M | 0.01% | −1,303−0.6% | Reduced |
| Trexquant Investment LP | 203,059 | $10.1M | 0.07% | +203,059 | New |
| FMR LLC | 199,673 | $9.90M | 0.00% | −64,560−24.4% | Reduced |
| Alliancebernstein L.P. | 136,094 | $9.77M | 0.00% | +13,096+10.6% | Added |
| OpenArc Corporate Advisory, LLC | 189,620 | $9.40M | 0.13% | +15,460+8.9% | Added |
| Citigroup Inc | 188,719 | $9.36M | 0.01% | +3,704+2.0% | Added |
| Tudor Investment Corp Et Al | 181,899 | $9.02M | 0.05% | +181,899 | New |
| Rockefeller Capital Management L.P. | 181,789 | $9.01M | 0.02% | +10,661+6.2% | Added |
| Quadrature Capital Ltd | 177,669 | $8.81M | 0.10% | +177,669 | New |
| Rhumbline Advisers | 172,396 | $8.55M | 0.01% | +16,069+10.3% | Added |
| CIBC Bancorp USA Inc. | 167,615 | $8.31M | 0.01% | +167,615 | New |
| Amundi | 164,824 | $8.17M | 0.00% | +61,161+59.0% | Added |
| California Public Employees Retirement System | 161,812 | $8.02M | 0.00% | −27,546−14.5% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 161,103 | $7.99M | 0.01% | +9,877+6.5% | Added |
| Two Sigma Investments, LP | 160,317 | $7.95M | 0.01% | +55,456+52.9% | Added |
| Royal Bank of Canada | 150,370 | $7.46M | 0.00% | −30,740−17.0% | Reduced |
| Aviva PLC | 148,334 | $7.36M | 0.01% | +99,890+206.2% | Added |
| Foundations Investment Advisors, LLC | 145,512 | $7.22M | 0.09% | +50,451+53.1% | Added |
| Cetera Investment Advisers | 143,299 | $7.11M | 0.01% | +14,716+11.4% | Added |
| Dimensional Fund Advisors LP | 142,482 | $7.05M | 0.00% | −78,179−35.4% | Reduced |
| Price T Rowe Associates Inc | 141,293 | $7.01M | 0.00% | +33,427+31.0% | Added |
| Winton Group Ltd | 134,379 | $6.66M | 0.23% | +115,379+607.3% | Added |
| Jump Financial, LLC | 132,822 | $6.59M | 0.10% | −48,594−26.8% | Reduced |
| California State Teachers Retirement System | 131,188 | $6.51M | 0.01% | −880−0.7% | Reduced |
| CAPROCK Group, Inc. | 131,115 | $6.50M | 0.16% | −2,152−1.6% | Reduced |
| Invesco Ltd. | 130,516 | $6.47M | 0.00% | +16,919+14.9% | Added |
| Quantbot Technologies LP | 129,143 | $6.40M | 0.26% | −105,633−45.0% | Reduced |
| HSBC Holdings PLC | 126,975 | $6.27M | 0.00% | +14,603+13.0% | Added |
| KLP Kapitalforvaltning AS | 124,100 | $6.15M | 0.02% | +39,800+47.2% | Added |
| Colony Group, LLC | 119,322 | $5.92M | 0.01% | −5,737−4.6% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 114,485 | $5.68M | 0.01% | +30,527+36.4% | Added |
| Private Advisor Group, LLC | 114,026 | $5.65M | 0.03% | −33,477−22.7% | Reduced |
| Natixis | 113,276 | $5.62M | 0.02% | +56,610+99.9% | Added |
| Advisor Group Holdings, Inc. | 110,761 | $5.49M | 0.01% | −1,205−1.1% | Reduced |
| Jones Financial Companies LLLP | 104,115 | $5.23M | 0.00% | +18,768+22.0% | Added |
| HITE Hedge Asset Management LLC | 103,643 | $5.14M | 0.29% | 00.0% | Unchanged |
| Ghisallo Capital Management LLC | 100,000 | $4.96M | 0.14% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 96,511 | $4.79M | 0.01% | −4,541−4.5% | Reduced |
| Credit Agricole S A | 95,300 | $4.73M | 0.02% | +48,452+103.4% | Added |
| Vontobel Holding Ltd. | 94,323 | $4.68M | 0.02% | +88,066+1,407.5% | Added |
| Westwood Wealth Management | 93,190 | $4.62M | 1.81% | +93,190 | New |
| Mercer Global Advisors Inc | 91,554 | $4.54M | 0.01% | +70,559+336.1% | Added |
| Equitable Holdings, Inc. | 71,562 | $4.48M | 0.03% | +67,620+1,715.4% | Added |
| SG Americas Securities, LLC | 87,838 | $4.36M | 0.00% | −32,914−27.3% | Reduced |
| AlphaStar Capital Management, LLC | 80,142 | $3.97M | 0.29% | +18,954+31.0% | Added |
| RWM Asset Management, LLC | 78,509 | $3.89M | 0.43% | +78,509 | New |
| BLI - Banque de Luxembourg Investments | 52,000 | $3.67M | 0.11% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 70,433 | $3.49M | 0.00% | +183+0.3% | Added |
| Voya Investment Management LLC | 66,660 | $3.31M | 0.00% | +19,915+42.6% | Added |
| MetLife Investment Management | 66,455 | $3.30M | 0.02% | +6,517+10.9% | Added |
| Pictet Asset Management Holding SA | 65,242 | $3.23M | 0.00% | −62,819−49.1% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 63,459 | $3.15M | 0.01% | +34,019+115.6% | Added |