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 22 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, Q2 2026
Institutional positions in Oklo Inc. as of Jun 30, 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
- 673
- +3 vs. Q1 2026
- Shares held
- 81.7M
- −7.56M (−8.5%) vs. Q1 2026
- Total value
- $4.27B
- −$159.6M (−3.6%) vs. Q1 2026
- New holders
- 126
- 260 more added
- Sold out
- 123
- 175 more reduced
9 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Oklo Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Invesco Ltd. | 113,178 | $5.92M | 0.00% | −17,338−13.3% | Reduced |
| Havemeyer Place LP | 113,742 | $5.95M | 0.59% | +91,610+413.9% | Added |
| Freestone Grove Partners LP | 116,383 | $6.09M | 0.04% | +62,651+116.6% | Added |
| State of Wisconsin Investment Board | 118,577 | $6.21M | 0.01% | +60,854+105.4% | Added |
| Vanguard Asset Management, Ltd | 120,334 | $6.30M | 0.00% | +77,051+178.0% | Added |
| Jones Financial Companies LLLP | 128,241 | $6.41M | 0.00% | +24,126+23.2% | Added |
| State Board of Administration of Florida Retirement System | 125,335 | $6.56M | 0.01% | +88,956+244.5% | Added |
| Legal & General Group Plc | 125,527 | $6.57M | 0.00% | −192,534−60.5% | Reduced |
| BNP Paribas Arbitrage, SA | 125,631 | $6.57M | 0.00% | −205,909−62.1% | Reduced |
| CAPROCK Group, Inc. | 131,055 | $6.86M | 0.13% | −600.0% | Reduced |
| Barclays PLC | 132,153 | $6.92M | 0.00% | −148,318−52.9% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 138,129 | $7.23M | 0.02% | +23,644+20.7% | Added |
| Defiance ETFs, LLC | 139,574 | $7.32M | 0.10% | −3,503,470−96.2% | Reduced |
| Price T Rowe Associates Inc | 143,827 | $7.53M | 0.00% | +2,534+1.8% | Added |
| Colony Group, LLC | 144,333 | $7.55M | 0.01% | +25,011+21.0% | Added |
| Caption Management, LLC | 150,540 | $7.88M | 0.28% | +149,640+16,626.7% | Added |
| Advisor Group Holdings, Inc. | 151,256 | $7.92M | 0.01% | +40,495+36.6% | Added |
| JPMorgan Chase & Co | 143,986 | $7.97M | 0.00% | −163,069−53.1% | Reduced |
| Toroso Investments, LLC | 155,100 | $8.12M | 0.02% | +101,524+189.5% | Added |
| Foundations Investment Advisors, LLC | 161,780 | $8.47M | 0.09% | +16,268+11.2% | Added |
| California State Teachers Retirement System | 165,926 | $8.68M | 0.01% | +34,738+26.5% | Added |
| SG Americas Securities, LLC | 172,312 | $9.02M | 0.01% | +84,474+96.2% | Added |
| Virtu Financial LLC | 180,887 | $9.47M | 0.30% | +154,390+582.7% | Added |
| Cetera Investment Advisers | 181,474 | $9.50M | 0.01% | +38,175+26.6% | Added |
| CI Private Wealth, LLC | 181,698 | $9.51M | 0.01% | −23,055−11.3% | Reduced |
| California Public Employees Retirement System | 183,331 | $9.59M | 0.01% | +21,519+13.3% | Added |
| OpenArc Corporate Advisory, LLC | 200,884 | $10.5M | 0.13% | +11,264+5.9% | Added |
| Citigroup Inc | 205,222 | $10.7M | 0.00% | +16,503+8.7% | Added |
| Trexquant Investment LP | 208,730 | $10.9M | 0.07% | +5,671+2.8% | Added |
| Cardiff Park Advisors, LLC | 223,340 | $11.7M | 0.91% | −100.0% | Reduced |
| Darrow Company, Inc. | 232,670 | $12.2M | 4.72% | +232,670 | New |
| Royal Bank of Canada | 248,080 | $13.0M | 0.00% | +97,710+65.0% | Added |
| Russell Investments Group, Ltd. | 250,323 | $13.1M | 0.01% | +206,031+465.2% | Added |
| Rockefeller Capital Management L.P. | 253,057 | $13.2M | 0.02% | +71,268+39.2% | Added |
| Nuveen, LLC | 255,304 | $13.4M | 0.00% | −205,839−44.6% | Reduced |
| Millennium Management LLC | 278,978 | $14.6M | 0.01% | +222,102+390.5% | Added |
| FMR LLC | 283,221 | $14.8M | 0.00% | +83,548+41.8% | Added |
| Swiss National Bank | 287,600 | $15.1M | 0.01% | −37,300−11.5% | Reduced |
| Wedbush Fund Advisers, LLC | 292,072 | $15.3M | 1.36% | +61,556+26.7% | Added |
| Exchange Traded Concepts, LLC | 310,563 | $16.3M | 0.08% | +11,568+3.9% | Added |
| Mirae Asset Global Investments Co., Ltd. | 352,541 | $18.4M | 0.04% | +21,150+6.4% | Added |
| ARK Investment Management LLCSuperinvestorARK Invest | 372,257 | $19.5M | 0.13% | +21,088+6.0% | Added |
| UBS Asset Management Americas Inc | 393,729 | $20.6M | 0.00% | −57,551−12.8% | Reduced |
| Raymond James Financial Inc | 398,843 | $20.9M | 0.01% | +45,039+12.7% | Added |
| Wells Fargo & Company | 434,127 | $22.7M | 0.00% | +82,400+23.4% | Added |
| Bank of New York Mellon Corp | 468,802 | $24.5M | 0.00% | −48,084−9.3% | Reduced |
| Portland Investment Counsel Inc. | 589,480 | $30.8M | 8.62% | 00.0% | Unchanged |
| Bank of America Corp | 592,471 | $31.0M | 0.00% | −27,810−4.5% | Reduced |
| LPL Financial LLC | 629,015 | $32.9M | 0.01% | +95,064+17.8% | Added |
| Bank of Montreal | 677,701 | $35.5M | 0.01% | +140,531+26.2% | Added |
| Susquehanna International Group, LLP | 678,175 | $35.5M | 0.03% | +12,196+1.8% | Added |
| Northern Trust Corp | 716,383 | $37.5M | 0.00% | −436,683−37.9% | Reduced |
| Vanguard Fiduciary Trust Co | 880,052 | $46.1M | 0.01% | +59,422+7.2% | Added |
| Marshall Wace, LLP | 1,066,394 | $55.8M | 0.05% | +1,066,394 | New |
| Cantor Fitzgerald, L. P. | 1,091,138 | $57.1M | 1.10% | +606,597+125.2% | Added |
| Charles Schwab Investment Management Inc | 1,138,236 | $59.6M | 0.01% | −47,495−4.0% | Reduced |
| Goldman Sachs Group Inc | 1,148,200 | $60.1M | 0.01% | +106,274+10.2% | Added |
| National Bank of Canada | 1,185,312 | $62.1M | 0.05% | +576,148+94.6% | Added |
| Marex Group plc | 1,207,636 | $63.2M | 0.47% | +617,772+104.7% | Added |
| Jane Street Group, LLC | 1,269,146 | $66.4M | 0.04% | +736,146+138.1% | Added |
| Clear Street Group Inc. | 1,329,523 | $69.6M | 0.22% | +830,081+166.2% | Added |
| Norges Bank | 1,758,267 | $92.0M | 0.01% | +1,758,267 | New |
| UBS Group AG | 2,095,153 | $109.6M | 0.02% | +888,854+73.7% | Added |
| Geode Capital Management, LLC | 2,364,428 | $123.8M | 0.01% | −689,721−22.6% | Reduced |
| State Street Corp | 2,378,058 | $124.4M | 0.00% | −948,084−28.5% | Reduced |
| Morgan Stanley | 3,262,878 | $170.7M | 0.01% | +581,140+21.7% | Added |
| Vanguard Portfolio Management LLC | 6,425,515 | $336.2M | 0.02% | +187,597+3.0% | Added |
| Vanguard Capital Management LLC | 6,539,334 | $342.2M | 0.01% | +708,401+12.1% | Added |
| BlackRock, Inc. | 7,311,968 | $382.6M | 0.01% | −8,595,544−54.0% | Reduced |
| Van Eck Associates Corp | 7,912,353 | $414.1M | 0.25% | +1,830,836+30.1% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 8,935,822 | $467.6M | 0.56% | +79,326+0.9% | Added |
| Vestor Capital, LLC | 486 | – | – | −520−51.7% | Reduced |
| Livforsakringsbolaget Skandia, Omsesidigt | 71,778 | – | – | +67,330+1,513.7% | Added |
| Activest Wealth Management | 0 | $0 | 0.00% | −205−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −1,709,692−100.0% | Sold out |
| Hood River Capital Management LLC | 0 | $0 | 0.00% | −589,294−100.0% | Sold out |
| Capital World Investors | 0 | $0 | 0.00% | −537,354−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −303,775−100.0% | Sold out |
| American Century Companies Inc | 0 | $0 | 0.00% | −254,218−100.0% | Sold out |
| Sumitomo Mitsui Trust Holdings, Inc. | 0 | $0 | 0.00% | −206,946−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −181,899−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −177,669−100.0% | Sold out |
| Aviva PLC | 0 | $0 | 0.00% | −148,334−100.0% | Sold out |
| Ghisallo Capital Management LLC | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Westerkirk Capital Inc. | 0 | $0 | 0.00% | −59,200−100.0% | Sold out |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −56,646−100.0% | Sold out |
| Parallax Volatility Advisers, L.P. | 0 | $0 | 0.00% | −41,870−100.0% | Sold out |
| Arlington Capital Management, Inc. | 0 | $0 | 0.00% | −49,490−100.0% | Sold out |
| Nomura Asset Management Co Ltd | 0 | $0 | 0.00% | −43,842−100.0% | Sold out |
| Danske Bank A/S | 0 | $0 | 0.00% | −43,400−100.0% | Sold out |
| Tredje AP-fonden | 0 | $0 | 0.00% | −42,739−100.0% | Sold out |
| BLKBRD Asset Management, LP | 0 | $0 | 0.00% | −36,650−100.0% | Sold out |
| Resona Asset Management Co.,Ltd. | 0 | $0 | 0.00% | −33,936−100.0% | Sold out |
| Scopus Asset Management, L.P. | 0 | $0 | 0.00% | −30,000−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −29,074−100.0% | Sold out |
| State of Michigan Retirement System | 0 | $0 | 0.00% | −27,500−100.0% | Sold out |
| T. Rowe Price Investment Management, Inc. | 0 | $0 | 0.00% | −26,445−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −24,383−100.0% | Sold out |
| October Effect Ltd | 0 | $0 | 0.00% | −23,988−100.0% | Sold out |
| Scientech Research LLC | 0 | $0 | 0.00% | −23,699−100.0% | Sold out |