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 20 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 |
|---|---|---|---|---|---|
| KLP Kapitalforvaltning AS | 124,100 | $6.15M | 0.02% | +39,800+47.2% | Added |
| HSBC Holdings PLC | 126,975 | $6.27M | 0.00% | +14,603+13.0% | Added |
| Quantbot Technologies LP | 129,143 | $6.40M | 0.26% | −105,633−45.0% | Reduced |
| Invesco Ltd. | 130,516 | $6.47M | 0.00% | +16,919+14.9% | Added |
| CAPROCK Group, Inc. | 131,115 | $6.50M | 0.16% | −2,152−1.6% | Reduced |
| California State Teachers Retirement System | 131,188 | $6.51M | 0.01% | −880−0.7% | Reduced |
| Jump Financial, LLC | 132,822 | $6.59M | 0.10% | −48,594−26.8% | Reduced |
| Winton Group Ltd | 134,379 | $6.66M | 0.23% | +115,379+607.3% | Added |
| Price T Rowe Associates Inc | 141,293 | $7.01M | 0.00% | +33,427+31.0% | Added |
| Dimensional Fund Advisors LP | 142,482 | $7.05M | 0.00% | −78,179−35.4% | Reduced |
| Cetera Investment Advisers | 143,299 | $7.11M | 0.01% | +14,716+11.4% | Added |
| Foundations Investment Advisors, LLC | 145,512 | $7.22M | 0.09% | +50,451+53.1% | Added |
| Aviva PLC | 148,334 | $7.36M | 0.01% | +99,890+206.2% | Added |
| Royal Bank of Canada | 150,370 | $7.46M | 0.00% | −30,740−17.0% | Reduced |
| Two Sigma Investments, LP | 160,317 | $7.95M | 0.01% | +55,456+52.9% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 161,103 | $7.99M | 0.01% | +9,877+6.5% | Added |
| California Public Employees Retirement System | 161,812 | $8.02M | 0.00% | −27,546−14.5% | Reduced |
| Amundi | 164,824 | $8.17M | 0.00% | +61,161+59.0% | Added |
| CIBC Bancorp USA Inc. | 167,615 | $8.31M | 0.01% | +167,615 | New |
| Rhumbline Advisers | 172,396 | $8.55M | 0.01% | +16,069+10.3% | Added |
| Quadrature Capital Ltd | 177,669 | $8.81M | 0.10% | +177,669 | New |
| Rockefeller Capital Management L.P. | 181,789 | $9.01M | 0.02% | +10,661+6.2% | Added |
| Tudor Investment Corp Et Al | 181,899 | $9.02M | 0.05% | +181,899 | New |
| Citigroup Inc | 188,719 | $9.36M | 0.01% | +3,704+2.0% | Added |
| OpenArc Corporate Advisory, LLC | 189,620 | $9.40M | 0.13% | +15,460+8.9% | Added |
| Alliancebernstein L.P. | 136,094 | $9.77M | 0.00% | +13,096+10.6% | Added |
| FMR LLC | 199,673 | $9.90M | 0.00% | −64,560−24.4% | Reduced |
| Trexquant Investment LP | 203,059 | $10.1M | 0.07% | +203,059 | New |
| CI Private Wealth, LLC | 204,753 | $10.1M | 0.01% | −1,303−0.6% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 206,946 | $10.3M | 0.01% | −15,564−7.0% | Reduced |
| Man Group plc | 209,758 | $10.4M | 0.02% | −127,083−37.7% | Reduced |
| Cardiff Park Advisors, LLC | 223,350 | $11.1M | 0.89% | +100.0% | Added |
| Wedbush Fund Advisers, LLC | 230,516 | $11.4M | 1.32% | +47,573+26.0% | Added |
| Citadel Advisors LLC | 249,676 | $12.4M | 0.01% | +31,204+14.3% | Added |
| American Century Companies Inc | 254,218 | $12.6M | 0.01% | +254,218 | New |
| Barclays PLC | 280,471 | $13.9M | 0.00% | −120,302−30.0% | Reduced |
| JPMorgan Chase & Co | 307,055 | $14.0M | 0.00% | +3,363+1.1% | Added |
| Exchange Traded Concepts, LLC | 298,995 | $14.8M | 0.11% | +39,269+15.1% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 303,775 | $15.1M | 0.03% | +229,017+306.3% | Added |
| Legal & General Group Plc | 318,061 | $15.8M | 0.00% | +19,456+6.5% | Added |
| Swiss National Bank | 324,900 | $16.1M | 0.01% | +21,400+7.1% | Added |
| Mirae Asset Global Investments Co., Ltd. | 331,391 | $16.4M | 0.05% | −13,846−4.0% | Reduced |
| BNP Paribas Arbitrage, SA | 331,540 | $16.4M | 0.01% | +197,774+147.9% | Added |
| ARK Investment Management LLCSuperinvestorARK Invest | 351,169 | $17.4M | 0.14% | +128,124+57.4% | Added |
| Wells Fargo & Company | 351,727 | $17.4M | 0.00% | −5,446−1.5% | Reduced |
| Raymond James Financial Inc | 353,804 | $17.5M | 0.01% | +35,221+11.1% | Added |
| Deutsche Bank AG | 397,806 | $19.7M | 0.01% | +45,702+13.0% | Added |
| UBS Asset Management Americas Inc | 451,280 | $22.4M | 0.00% | +36,510+8.8% | Added |
| Nuveen, LLC | 461,143 | $22.9M | 0.01% | +121,734+35.9% | Added |
| Cantor Fitzgerald, L. P. | 484,541 | $24.0M | 0.87% | −306,260−38.7% | Reduced |
| Clear Street Group Inc. | 499,442 | $24.8M | 0.14% | −342,730−40.7% | Reduced |
| Bank of New York Mellon Corp | 516,886 | $25.6M | 0.00% | +5,945+1.2% | Added |
| Jane Street Group, LLC | 533,000 | $26.4M | 0.03% | +533,000 | New |
| LPL Financial LLC | 533,951 | $26.5M | 0.01% | +32,336+6.4% | Added |
| Bank of Montreal | 537,170 | $26.6M | 0.01% | −169,103−23.9% | Reduced |
| Capital World Investors | 537,354 | $26.6M | 0.00% | +31,416+6.2% | Added |
| Hood River Capital Management LLC | 589,294 | $29.2M | 0.29% | +589,294 | New |
| Portland Investment Counsel Inc. | 589,480 | $29.2M | 9.38% | −33,350−5.4% | Reduced |
| Marex Group plc | 589,864 | $29.3M | 0.30% | −198,187−25.1% | Reduced |
| National Bank of Canada | 609,164 | $30.2M | 0.03% | +526,944+640.9% | Added |
| Bank of America Corp | 620,281 | $30.8M | 0.00% | +220,976+55.3% | Added |
| Susquehanna International Group, LLP | 665,979 | $33.0M | 0.04% | +628,977+1,699.8% | Added |
| Vanguard Fiduciary Trust Co | 820,630 | $40.7M | 0.01% | +820,630 | New |
| Goldman Sachs Group Inc | 1,041,926 | $51.7M | 0.01% | +132,663+14.6% | Added |
| Northern Trust Corp | 1,153,066 | $57.2M | 0.01% | +133,781+13.1% | Added |
| Charles Schwab Investment Management Inc | 1,185,731 | $58.8M | 0.01% | +25,453+2.2% | Added |
| UBS Group AG | 1,206,299 | $59.8M | 0.01% | +203,219+20.3% | Added |
| Alyeska Investment Group, L.P. | 1,709,692 | $84.8M | 0.24% | +1,709,692 | New |
| Morgan Stanley | 2,681,738 | $133.0M | 0.01% | +797,647+42.3% | Added |
| Geode Capital Management, LLC | 3,054,149 | $151.2M | 0.01% | +238,142+8.5% | Added |
| State Street Corp | 3,326,142 | $164.9M | 0.01% | +265,922+8.7% | Added |
| Defiance ETFs, LLC | 3,643,044 | $180.7M | 2.60% | +3,643,044 | New |
| Vanguard Capital Management LLC | 5,830,933 | $289.2M | 0.01% | +5,830,933 | New |
| Van Eck Associates Corp | 6,081,517 | $301.6M | 0.23% | +2,125,236+53.7% | Added |
| Vanguard Portfolio Management LLC | 6,237,918 | $309.3M | 0.02% | +6,237,918 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 8,856,496 | $439.2M | 0.60% | +1,033,259+13.2% | Added |
| BlackRock, Inc. | 15,907,512 | $788.9M | 0.01% | +1,087,078+7.3% | Added |
| Livforsakringsbolaget Skandia, Omsesidigt | 4,448 | – | – | +3,648+456.0% | Added |
| GFS Advisors, LLC | 5,429 | – | – | +5,429 | New |
| Sculptor Capital LP | 0 | $0 | 0.00% | −208,100−100.0% | Sold out |
| CloudAlpha Capital Management Limited/Hong Kong | 0 | $0 | 0.00% | −164,299−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −117,599−100.0% | Sold out |
| Strategic Planning Group, LLC | 0 | $0 | 0.00% | −98,878−100.0% | Sold out |
| FFG Partners, LLC | 0 | $0 | 0.00% | −93,037−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −74,304−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −69,000−100.0% | Sold out |
| SIH Partners, LLLP | 0 | $0 | 0.00% | −53,454−100.0% | Sold out |
| Seven Grand Managers, LLC | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −35,247−100.0% | Sold out |
| NewSquare Capital LLC | 0 | $0 | 0.00% | −34,768−100.0% | Sold out |
| Legacy Capital Group California, Inc. | 0 | $0 | 0.00% | −33,848−100.0% | Sold out |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 0 | $0 | 0.00% | −32,147−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −30,901−100.0% | Sold out |
| Delta Global Management LP | 0 | $0 | 0.00% | −30,747−100.0% | Sold out |
| Silverleafe Capital Partners, LLC | 0 | $0 | 0.00% | −30,528−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −27,626−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −26,032−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −23,341−100.0% | Sold out |
| CenterBook Partners LP | 0 | $0 | 0.00% | −20,770−100.0% | Sold out |
| Bleakley Financial Group, LLC | 0 | $0 | 0.00% | −20,624−100.0% | Sold out |