Oklo (OKLO)
Oklo on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on NYSE, classified by the SEC as electric services.
35.9M
Short interest
settlement 2026-10-15
3.3
Days to cover
-0.2 days vs prior
57.2%
Short share of volume
2026-11-02
55,783
Fails to deliver
settlement 2026-10-09
Mon 24 Mar
Last earnings
reported (8-K Item 2.02)
-$20.6M
Insider flow, 90 days
0 buys, 41 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in OKLO is 35,934,803 shares, up 2,285,509 shares over the last month. Over the last 48 readings it ranged from 11,577,495 shares (14 February 2025) to 35,934,803 shares (15 October 2026). The latest reading sits at the top of that range. At the reported average volume of 11.0M shares a day that is 3.3 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 35,934,803 | +9.7% | 11,016,033 | 3.26 |
| 2026-09-30 | 32,771,143 | -2.6% | 9,324,304 | 3.51 |
| 2026-09-15 | 33,649,294 | +4.5% | 10,387,441 | 3.24 |
| 2026-08-31 | 32,200,754 | +23.9% | 9,264,799 | 3.48 |
| 2026-08-14 | 25,996,552 | -14.3% | 10,663,446 | 2.44 |
| 2026-07-31 | 30,330,285 | +8.6% | 9,193,076 | 3.30 |
| 2026-07-15 | 27,938,002 | +14.7% | 8,360,480 | 3.34 |
| 2026-06-30 | 24,368,308 | -10.5% | 11,004,959 | 2.21 |
| 2026-06-15 | 27,217,088 | -0.6% | 14,062,967 | 1.94 |
| 2026-05-29 | 27,370,539 | -22.0% | 14,539,957 | 1.88 |
| 2026-05-15 | 35,079,033 | +22.0% | 13,571,696 | 2.58 |
| 2026-04-30 | 28,744,756 | +0.5% | 18,978,409 | 1.51 |
| 2026-04-15 | 28,609,126 | +18.5% | 9,588,192 | 2.98 |
| 2026-03-31 | 24,135,016 | +14.2% | 9,669,133 | 2.50 |
| 2026-03-13 | 21,141,088 | +10.6% | 7,162,460 | 2.95 |
| 2026-02-27 | 19,121,070 | +6.2% | 6,550,004 | 2.92 |
| 2026-02-13 | 18,013,368 | +5.5% | 10,495,808 | 1.72 |
| 2026-01-30 | 17,071,258 | -0.4% | 13,244,574 | 1.29 |
| 2026-01-15 | 17,138,732 | +1.0% | 15,317,809 | 1.12 |
| 2025-12-31 | 16,969,485 | -17.9% | 8,443,593 | 2.01 |
| 2025-12-15 | 20,667,407 | +2.6% | 11,020,801 | 1.88 |
| 2025-11-28 | 20,142,849 | +8.2% | 14,513,043 | 1.39 |
| 2025-11-14 | 18,616,132 | +29.1% | 13,948,054 | 1.33 |
| 2025-10-31 | 14,424,084 | -11.8% | 18,947,082 | 1.00 |
| 2025-10-15 | 16,359,701 | +3.8% | 24,505,568 | 1.00 |
| 2025-09-30 | 15,754,689 | -8.2% | 30,833,511 | 1.00 |
| 2025-09-15 | 17,167,648 | +5.0% | 13,455,961 | 1.28 |
| 2025-08-29 | 16,344,280 | -5.2% | 13,465,768 | 1.21 |
| 2025-08-15 | 17,242,782 | +10.7% | 16,868,197 | 1.02 |
| 2025-07-31 | 15,569,838 | +0.3% | 22,001,252 | 1.00 |
| 2025-07-15 | 15,516,162 | -1.2% | 14,416,808 | 1.08 |
| 2025-06-30 | 15,701,377 | +12.5% | 20,726,816 | 1.00 |
| 2025-06-13 | 13,951,652 | +14.3% | 24,839,467 | 1.00 |
| 2025-05-30 | 12,205,906 | -19.1% | 30,617,081 | 1.00 |
| 2025-05-15 | 15,087,153 | +2.1% | 17,112,824 | 1.00 |
| 2025-04-30 | 14,777,900 | +2.4% | 7,953,676 | 1.86 |
| 2025-04-15 | 14,430,284 | +8.1% | 12,796,358 | 1.13 |
| 2025-03-31 | 13,347,248 | -5.7% | 13,194,701 | 1.01 |
| 2025-03-14 | 14,159,687 | +19.1% | 12,632,014 | 1.12 |
| 2025-02-28 | 11,886,756 | +2.7% | 14,950,934 | 1.00 |
| 2025-02-14 | 11,577,495 | -16.0% | 21,519,576 | 1.00 |
| 2025-01-31 | 13,783,231 | +16.8% | 27,695,500 | 1.00 |
| 2025-01-15 | 11,796,876 | -0.4% | 14,939,098 | 1.00 |
| 2024-12-31 | 11,841,623 | -21.5% | 17,768,477 | 1.00 |
| 2024-12-13 | 15,085,978 | +19.6% | 8,933,501 | 1.69 |
| 2024-11-29 | 12,616,510 | -20.6% | 17,020,388 | 1.00 |
| 2024-11-15 | 15,889,616 | +5.0% | 19,038,977 | 1.00 |
| 2024-10-31 | 15,140,418 | +40.5% | 36,128,444 | 1.00 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of OKLO volume is 57.2%, up 2.0 points over the last five sessions. Over the last 30 readings it ranged from 41.0% (28 September 2026) to 66.9% (21 October 2026). The latest reading is in line with the 30-session average of 56.5%, on 3.8M shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 2.2M | 3.8M | 57.2% | 30,375 |
| 2026-10-30 | 1.9M | 3.9M | 48.6% | 10,403 |
| 2026-10-29 | 1.2M | 2.7M | 43.0% | 1,878 |
| 2026-10-28 | 1.2M | 2.8M | 43.8% | 4,699 |
| 2026-10-27 | 1.5M | 3.6M | 41.4% | 12,129 |
| 2026-10-26 | 1.8M | 3.3M | 55.2% | 31,269 |
| 2026-10-23 | 1.5M | 2.6M | 59.7% | 16,488 |
| 2026-10-22 | 1.9M | 3.1M | 60.4% | 8,734 |
| 2026-10-21 | 1.8M | 2.7M | 66.9% | 8,371 |
| 2026-10-20 | 1.9M | 3.1M | 60.6% | 21,752 |
| 2026-10-19 | 2.2M | 3.7M | 58.8% | 14,932 |
| 2026-10-16 | 2.2M | 3.6M | 62.9% | 27,324 |
| 2026-10-15 | 3.0M | 4.8M | 61.9% | 5,796 |
| 2026-10-14 | 3.5M | 6.1M | 58.0% | 14,476 |
| 2026-10-13 | 2.3M | 3.7M | 62.9% | 26,319 |
| 2026-10-12 | 2.8M | 4.6M | 60.4% | 25,243 |
| 2026-10-09 | 1.8M | 3.1M | 59.0% | 492 |
| 2026-10-08 | 3.9M | 6.0M | 64.2% | 7,313 |
| 2026-10-07 | 2.6M | 4.1M | 64.7% | 4,372 |
| 2026-10-06 | 3.3M | 7.3M | 45.3% | 9,187 |
| 2026-10-05 | 1.6M | 3.0M | 54.0% | 11,685 |
| 2026-10-02 | 2.5M | 4.1M | 61.2% | 11,548 |
| 2026-10-01 | 2.0M | 3.2M | 63.1% | 32,447 |
| 2026-09-30 | 1.8M | 3.0M | 60.5% | 3,894 |
| 2026-09-29 | 1.3M | 2.3M | 55.3% | 2,859 |
| 2026-09-28 | 1.1M | 2.6M | 41.0% | 8,905 |
| 2026-09-25 | 1.5M | 2.9M | 50.8% | 1,031 |
| 2026-09-24 | 2.0M | 3.3M | 60.0% | 6,253 |
| 2026-09-23 | 1.9M | 3.0M | 62.6% | 2,617 |
| 2026-09-22 | 1.9M | 3.7M | 52.4% | 12,442 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 9 October 2026, the fails-to-deliver balance in OKLO is 55,783 shares, up 28,976 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (17 August 2026) to 451,353 shares (27 August 2026).
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-09 | 55,783 | $34.57 | $1.9M |
| 2026-10-08 | 26,807 | $36.82 | $987K |
| 2026-10-07 | 163,012 | $38.55 | $6.3M |
| 2026-10-06 | 250 | $35.97 | $9K |
| 2026-10-02 | 40,831 | $36.14 | $1.5M |
| 2026-10-01 | 33,167 | $37.02 | $1.2M |
| 2026-09-28 | 105,387 | $38.04 | $4.0M |
| 2026-09-25 | 154,801 | $38.29 | $5.9M |
| 2026-09-24 | 199,113 | $38.82 | $7.7M |
| 2026-09-22 | 86,496 | $40.18 | $3.5M |
| 2026-09-21 | 250,804 | $38.00 | $9.5M |
| 2026-09-18 | 5,314 | $39.65 | $211K |
| 2026-09-17 | 4,286 | $35.62 | $153K |
| 2026-09-16 | 31,604 | $35.98 | $1.1M |
| 2026-09-14 | 2,283 | $36.22 | $83K |
| 2026-09-11 | 138,718 | $39.88 | $5.5M |
| 2026-09-09 | 272,795 | $43.31 | $11.8M |
| 2026-09-08 | 148,679 | $41.27 | $6.1M |
| 2026-09-04 | 161 | $39.84 | $6K |
| 2026-09-01 | 34,354 | $40.57 | $1.4M |
| 2026-08-31 | 92,792 | $40.14 | $3.7M |
| 2026-08-27 | 451,353 | $41.60 | $18.8M |
| 2026-08-26 | 30,481 | $44.27 | $1.3M |
| 2026-08-25 | 168 | $39.69 | $7K |
| 2026-08-24 | 100 | $42.09 | $4K |
| 2026-08-21 | 119,905 | $41.66 | $5.0M |
| 2026-08-20 | 26,340 | $42.94 | $1.1M |
| 2026-08-19 | 140,996 | $41.36 | $5.8M |
| 2026-08-18 | 280,756 | $43.88 | $12.3M |
| 2026-08-17 | 2 | $44.38 | $89 |
Insider trades
SEC Form 4, newest first. JSONInsiders at OKLO reported 41 open-market sells worth $20.6M in the last 90 days and no open-market buys. Latest filing: Hanson John (Chief of Staff) on 2026-10-29.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-29 | Hanson John | Chief of Staff | Sell | 1K | $26.71 | $28K | 361K |
| 2026-10-29 | Renner Alexandra | Chief Product Officer | Sell | 1K | $26.71 | $29K | 594K |
| 2026-10-20 | Narayanadas Vivek | General Counsel & Secretary | Sell | 1K | $26.50 | $27K | 11K |
| 2026-10-19 | Narayanadas Vivek | General Counsel & Secretary | Sell | 2K | $27.63 | $65K | 16K |
| 2026-10-17 | Narayanadas Vivek | General Counsel & Secretary | Exercise or conversion | 4K | price not stated in the filing | not stated | 18K |
| 2026-10-14 | Renner Alexandra | Chief Product Officer | Sell | 688 | $30.75 | $21K | 478K |
| 2026-10-13 | Renner Alexandra | Chief Product Officer | Exercise or conversion | 2K | price not stated in the filing | not stated | 479K |
| 2026-10-13 | Hanson John | Chief of Staff | Exercise or conversion | 961 | price not stated in the filing | not stated | 362K |
| 2026-10-09 | Narayanadas Vivek | General Counsel & Secretary | Sell | 364 | $34.69 | $13K | 9K |
| 2026-10-08 | Narayanadas Vivek | General Counsel & Secretary | Exercise or conversion | 687 | price not stated in the filing | not stated | 9K |
| 2026-10-06 | Narayanadas Vivek | General Counsel & Secretary | Sell | 288 | $37.29 | $11K | 8K |
| 2026-10-05 | Narayanadas Vivek | General Counsel & Secretary | Sell | 649 | $35.93 | $23K | 9K |
| 2026-10-03 | Narayanadas Vivek | General Counsel & Secretary | Exercise or conversion | 1K | price not stated in the filing | not stated | 9K |
| 2026-10-02 | Bealmear Richard Craig | Chief Financial Officer | Exercise or conversion | 6K | $3.18 | $18K | 467K |
| 2026-10-01 | Cochran Caroline | Co-Founder, COO | Sell | 20K | $36.34 | $727K | 476K |
| 2026-10-01 | Cochran Caroline | Co-Founder, COO | Sell | 40K | $36.19 | $1.4M | 392K |
| 2026-10-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 20K | $37.07 | $741K | 509K |
| 2026-10-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 40K | $36.64 | $1.5M | 358K |
| 2026-10-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 20K | $36.34 | $727K | 476K |
| 2026-10-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 40K | $36.19 | $1.4M | 392K |
| 2026-10-01 | Cochran Caroline | Co-Founder, COO | Sell | 20K | $37.07 | $741K | 509K |
| 2026-10-01 | Cochran Caroline | Co-Founder, COO | Sell | 40K | $36.64 | $1.5M | 358K |
| 2026-10-01 | Bealmear Richard Craig | Chief Financial Officer | Sell | 16K | $36.87 | $608K | 462K |
| 2026-10-01 | Bealmear Richard Craig | Chief Financial Officer | Exercise or conversion | 16K | $3.18 | $52K | 478K |
| 2026-09-28 | Goodwin William Carroll Murphy | Chief Strategy Officer | Sell | 2K | $37.39 | $66K | 47K |
| 2026-09-28 | Renner Alexandra | Chief Product Officer | Sell | 1K | $37.39 | $41K | 478K |
| 2026-09-28 | Hanson John | Chief of Staff | Sell | 1K | $37.39 | $41K | 361K |
| 2026-09-26 | Goodwin William Carroll Murphy | Chief Strategy Officer | Exercise or conversion | 3K | price not stated in the filing | not stated | 49K |
| 2026-09-26 | Renner Alexandra | Chief Product Officer | Exercise or conversion | 2K | price not stated in the filing | not stated | 479K |
| 2026-09-26 | Hanson John | Chief of Staff | Exercise or conversion | 2K | price not stated in the filing | not stated | 362K |
| 2026-09-14 | Renner Alexandra | Chief Product Officer | Gift | 7K | price not stated in the filing | not stated | 116K |
| 2026-09-14 | Jansen John M | Director | Sell | 6K | $36.67 | $233K | 6K |
| 2026-09-13 | Hanson John | Chief of Staff | Exercise or conversion | 961 | price not stated in the filing | not stated | 360K |
| 2026-09-13 | Renner Alexandra | Chief Product Officer | Exercise or conversion | 1K | price not stated in the filing | not stated | 476K |
| 2026-09-11 | Narayanadas Vivek | General Counsel & Secretary | Exercise or conversion | 210 | price not stated in the filing | not stated | 8K |
| 2026-09-09 | Narayanadas Vivek | General Counsel & Secretary | Sell | 365 | $43.31 | $16K | 8K |
| 2026-09-08 | Narayanadas Vivek | General Counsel & Secretary | Exercise or conversion | 687 | price not stated in the filing | not stated | 9K |
| 2026-09-08 | Narayanadas Vivek | General Counsel & Secretary | Sell | 238 | $42.06 | $10K | 9K |
| 2026-09-04 | Narayanadas Vivek | General Counsel & Secretary | Sell | 538 | $39.88 | $21K | 8K |
| 2026-09-03 | Narayanadas Vivek | General Counsel & Secretary | Exercise or conversion | 1K | price not stated in the filing | not stated | 9K |
| 2026-09-02 | Bealmear Richard Craig | Chief Financial Officer | Exercise or conversion | 6K | $3.18 | $18K | 462K |
| 2026-09-01 | Cochran Caroline | Co-Founder, COO | Sell | 40K | $38.40 | $1.5M | 432K |
| 2026-09-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 40K | $38.66 | $1.5M | 398K |
| 2026-09-01 | Renner Alexandra | Chief Product Officer | Sell | 2K | $38.40 | $74K | 475K |
| 2026-09-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 200 | $39.15 | $8K | 529K |
| 2026-09-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 20K | $38.88 | $770K | 530K |
| 2026-09-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 20K | $38.56 | $771K | 496K |
| 2026-09-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 40K | $38.40 | $1.5M | 432K |
| 2026-09-01 | Cochran Caroline | Co-Founder, COO | Sell | 20K | $38.56 | $771K | 496K |
| 2026-09-01 | Cochran Caroline | Co-Founder, COO | Sell | 200 | $39.15 | $8K | 529K |
| 2026-09-01 | Cochran Caroline | Co-Founder, COO | Sell | 20K | $38.88 | $770K | 530K |
| 2026-09-01 | Cochran Caroline | Co-Founder, COO | Sell | 40K | $38.66 | $1.5M | 398K |
| 2026-09-01 | Bealmear Richard Craig | Chief Financial Officer | Sell | 16K | $38.76 | $637K | 456K |
| 2026-09-01 | Bealmear Richard Craig | Chief Financial Officer | Exercise or conversion | 16K | $3.18 | $52K | 472K |
| 2026-08-31 | Renner Alexandra | Chief Product Officer | Exercise or conversion | 4K | price not stated in the filing | not stated | 477K |
| 2026-08-25 | Narayanadas Vivek | General Counsel & Secretary | Sell | 223 | $40.80 | $9K | 8K |
| 2026-08-24 | Narayanadas Vivek | General Counsel & Secretary | Sell | 3K | $39.77 | $130K | 8K |
| 2026-08-24 | Renner Alexandra | Chief Product Officer | Sell | 557 | $39.77 | $22K | 473K |
| 2026-08-24 | Hanson John | Chief of Staff | Sell | 539 | $39.77 | $21K | 359K |
| 2026-08-24 | Goodwin William Carroll Murphy | Chief Legal & Strategy Officer | Sell | 12K | $39.77 | $461K | 45K |
| 2026-08-21 | Narayanadas Vivek | General Counsel & Secretary | Exercise or conversion | 5K | price not stated in the filing | not stated | 11K |
| 2026-08-13 | Hanson John | Chief of Staff | Exercise or conversion | 961 | price not stated in the filing | not stated | 360K |
| 2026-08-13 | Renner Alexandra | Chief Product Officer | Exercise or conversion | 1K | price not stated in the filing | not stated | 473K |
| 2026-08-12 | Goodwin William Carroll Murphy | Chief Legal & Strategy Officer | Exercise or conversion | 21K | price not stated in the filing | not stated | 57K |
| 2026-08-04 | Bealmear Richard Craig | Chief Financial Officer | Exercise or conversion | 6K | $3.18 | $18K | 456K |
| 2026-08-03 | Cochran Caroline | Co-Founder, COO | Sell | 40K | $41.68 | $1.7M | 472K |
| 2026-08-03 | DeWitte Jacob | Co-Founder, CEO | Sell | 40K | $41.35 | $1.7M | 438K |
| 2026-08-03 | Narayanadas Vivek | General Counsel & Secretary | Exercise or conversion | 1K | price not stated in the filing | not stated | 6K |
| 2026-08-03 | DeWitte Jacob | Co-Founder, CEO | Sell | 4K | $39.60 | $139K | 549K |
| 2026-08-03 | DeWitte Jacob | Co-Founder, CEO | Sell | 17K | $38.55 | $636K | 553K |
| 2026-08-03 | DeWitte Jacob | Co-Founder, CEO | Sell | 7K | $40.94 | $293K | 516K |
| 2026-08-03 | DeWitte Jacob | Co-Founder, CEO | Sell | 13K | $40.14 | $516K | 524K |
| 2026-08-03 | DeWitte Jacob | Co-Founder, CEO | Sell | 40K | $41.68 | $1.7M | 472K |
| 2026-08-03 | Cochran Caroline | Co-Founder, COO | Sell | 7K | $40.94 | $293K | 516K |
| 2026-08-03 | Cochran Caroline | Co-Founder, COO | Sell | 13K | $40.14 | $516K | 524K |
| 2026-08-03 | Cochran Caroline | Co-Founder, COO | Sell | 4K | $39.60 | $139K | 549K |
| 2026-08-03 | Cochran Caroline | Co-Founder, COO | Sell | 17K | $38.55 | $636K | 553K |
| 2026-08-03 | Cochran Caroline | Co-Founder, COO | Sell | 40K | $41.35 | $1.7M | 438K |
| 2026-08-03 | Bealmear Richard Craig | Chief Financial Officer | Sell | 16K | $38.80 | $638K | 450K |
| 2026-08-03 | Bealmear Richard Craig | Chief Financial Officer | Exercise or conversion | 16K | $3.18 | $52K | 467K |
| 2026-07-02 | Bealmear Richard Craig | Chief Financial Officer | Exercise or conversion | 6K | $3.18 | $18K | 450K |
| 2026-07-01 | Cochran Caroline | Co-Founder, COO | Sell | 40K | $53.71 | $2.1M | 536K |
| 2026-07-01 | Cochran Caroline | Co-Founder, COO | Sell | 60K | $52.80 | $3.2M | 512K |
| 2026-07-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 40K | $53.28 | $2.1M | 569K |
| 2026-07-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 60K | $52.30 | $3.1M | 478K |
| 2026-07-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 40K | $53.71 | $2.1M | 536K |
| 2026-07-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 60K | $52.80 | $3.2M | 512K |
| 2026-07-01 | Cochran Caroline | Co-Founder, COO | Sell | 40K | $53.28 | $2.1M | 569K |
| 2026-07-01 | Cochran Caroline | Co-Founder, COO | Sell | 60K | $52.30 | $3.1M | 478K |
| 2026-07-01 | Bealmear Richard Craig | Chief Financial Officer | Sell | 16K | $52.63 | $859K | 445K |
| 2026-07-01 | Bealmear Richard Craig | Chief Financial Officer | Exercise or conversion | 16K | $3.18 | $52K | 461K |
| 2026-06-02 | Bealmear Richard Craig | Chief Financial Officer | Exercise or conversion | 6K | $3.18 | $19K | 445K |
| 2026-06-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 40K | $69.10 | $2.8M | 609K |
| 2026-06-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 25K | $67.75 | $1.7M | 538K |
| 2026-06-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 15K | $67.15 | $995K | 563K |
| 2026-06-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 7K | $66.14 | $489K | 578K |
| 2026-06-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 13K | $64.99 | $819K | 585K |
| 2026-06-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 2K | $70.45 | $127K | 576K |
| 2026-06-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 38K | $69.64 | $2.7M | 578K |
| 2026-06-01 | DeWitte Jacob | Co-Founder, CEO | Sell | 60K | $68.29 | $4.1M | 572K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON50 Form 144 notices on file for OKLO worth $254.9M at the prices reported; 24 in the last 90 days worth $3.0M. Latest: Bealmear Richard Craig filed on 2026-11-02 to sell 16,727 shares ($427K) from 2026-11-02.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-11-02 | Bealmear Richard CraigOfficer | 17K | $427K | 0.009% | 2026-11-02 | Fidelity Brokerage Services LLC |
| 2026-10-29 | Renner AlexandraOfficer | 1K | $29K | 0.001% | 2026-10-29 | Fidelity Brokerage Services LLC |
| 2026-10-29 | Hanson JohnOfficer | 1K | $28K | 0.001% | 2026-10-29 | Fidelity Brokerage Services LLC |
| 2026-10-20 | Narayanadas VivekOfficer | 1K | $27K | 0.001% | 2026-10-20 | Fidelity Brokerage Services LLC |
| 2026-10-19 | Narayanadas VivekOfficer | 2K | $65K | 0.001% | 2026-10-19 | Fidelity Brokerage Services LLC |
| 2026-10-14 | Renner AlexandraOfficer | 688 | $21K | 0.000% | 2026-10-14 | Fidelity Brokerage Services LLC |
| 2026-10-09 | Narayanadas VivekOfficer | 364 | $13K | 0.000% | 2026-10-09 | Fidelity Brokerage Services LLC |
| 2026-10-06 | Narayanadas VivekOfficer | 288 | $11K | 0.000% | 2026-10-06 | Fidelity Brokerage Services LLC |
| 2026-10-05 | Narayanadas VivekOfficer | 649 | $23K | 0.000% | 2026-10-05 | Fidelity Brokerage Services LLC |
| 2026-10-01 | Bealmear Richard CraigOfficer | 16K | $608K | 0.009% | 2026-10-01 | Fidelity Brokerage Services LLC |
| 2026-09-28 | Renner AlexandraOfficer | 1K | $41K | 0.001% | 2026-09-28 | Fidelity Brokerage Services LLC |
| 2026-09-28 | Goodwin William Carroll MurphyOfficer | 2K | $66K | 0.001% | 2026-09-28 | Fidelity Brokerage Services LLC |
| 2026-09-28 | Hanson JohnOfficer | 1K | $42K | 0.001% | 2026-09-28 | Fidelity Brokerage Services LLC |
| 2026-09-14 | Jansen John MDirector | 6K | $233K | 0.003% | 2026-09-14 | Fidelity Brokerage Services LLC |
| 2026-09-09 | Narayanadas VivekOfficer | 365 | $16K | 0.000% | 2026-09-09 | Fidelity Brokerage Services LLC |
| 2026-09-08 | Narayanadas VivekOfficer | 238 | $10K | 0.000% | 2026-09-08 | Fidelity Brokerage Services LLC |
| 2026-09-04 | Narayanadas VivekOfficer | 538 | $21K | 0.000% | 2026-09-04 | Fidelity Brokerage Services LLC |
| 2026-09-01 | Renner AlexandraOfficer | 2K | $74K | 0.001% | 2026-09-01 | Fidelity Brokerage Services LLC |
| 2026-09-01 | Bealmear Richard CraigOfficer | 16K | $637K | 0.009% | 2026-09-01 | Fidelity Brokerage Services LLC |
| 2026-08-25 | Narayanadas VivekOfficer | 223 | $9K | 0.000% | 2026-08-25 | Fidelity Brokerage Services LLC |
| 2026-08-24 | Renner AlexandraOfficer | 557 | $22K | 0.000% | 2026-08-24 | Fidelity Brokerage Services LLC |
| 2026-08-24 | Narayanadas VivekOfficer | 3K | $130K | 0.002% | 2026-08-24 | Fidelity Brokerage Services LLC |
| 2026-08-24 | Hanson JohnOfficer | 539 | $21K | 0.000% | 2026-08-24 | Fidelity Brokerage Services LLC |
| 2026-08-24 | Goodwin William Carroll MurphyOfficer | 12K | $461K | 0.006% | 2026-08-24 | Fidelity Brokerage Services LLC |
| 2026-08-03 | Bealmear Richard CraigOfficer | 16K | $638K | 0.009% | 2026-08-03 | Fidelity Brokerage Services LLC |
| 2026-07-01 | Bealmear Richard CraigOfficer | 16K | $875K | 0.009% | 2026-07-01 | Fidelity Brokerage Services LLC |
| 2026-06-01 | Bealmear Richard CraigOfficer | 57K | $3.9M | 0.033% | 2026-06-01 | Fidelity Brokerage Services LLC |
| 2026-06-01 | Bealmear Richard CraigOfficer | 16K | $1.1M | 0.009% | 2026-06-01 | Fidelity Brokerage Services LLC |
| 2026-05-21 | Schweiger Patrick JosephFormer Officer | 20K | $1.3M | 0.012% | 2026-05-21 | Fidelity Brokerage Services LLC |
| 2026-05-20 | Schweiger Patrick JosephOfficer | 459 | $27K | 0.000% | 2026-05-20 | Fidelity Brokerage Services LLC |
| 2026-05-20 | Goodwin William Carroll MurphyOfficer | 11K | $612K | 0.006% | 2026-05-20 | Fidelity Brokerage Services LLC |
| 2026-05-01 | Bealmear Richard CraigOfficer | 16K | $1.1M | 0.009% | 2026-05-01 | Fidelity Brokerage Services LLC |
| 2026-04-01 | Bealmear Richard CraigOfficer | 16K | $835K | 0.009% | 2026-04-01 | Fidelity Brokerage Services LLC |
| 2026-03-27 | Kinzley RichardDirector | 4K | $208K | 0.003% | 2026-03-27 | RBC CAPITAL MARKETS LLC |
| 2026-03-27 | Jansen John MDirector | 11K | $541K | 0.006% | 2026-03-27 | Fidelity Brokerage Services LLC |
| 2026-03-25 | Schweiger Patrick JosephOfficer | 6K | $314K | 0.003% | 2026-03-25 | Fidelity Brokerage Services LLC |
| 2026-03-25 | Goodwin William Carroll MurphyOfficer | 11K | $601K | 0.006% | 2026-03-25 | Fidelity Brokerage Services LLC |
| 2026-03-13 | DeWitte JacobOfficer, Director | 73K | $4.4M | 0.047% | 2026-03-13 | Fidelity Brokerage Services LLC |
| 2026-03-13 | Cochran CarolineOfficer, Director | 45K | $2.7M | 0.029% | 2026-03-13 | Fidelity Brokerage Services LLC |
| 2026-03-13 | Bealmear Richard CraigOfficer | 72K | $4.3M | 0.046% | 2026-03-13 | Fidelity Brokerage Services LLC |
| 2026-03-09 | Goodwin William Carroll MurphyOfficer | 3K | $160K | 0.002% | 2026-03-09 | Fidelity Brokerage Services LLC |
| 2026-03-02 | Bealmear Richard CraigOfficer | 17K | $975K | 0.011% | 2026-03-02 | Fidelity Brokerage Services LLC |
| 2026-02-02 | Bealmear Richard CraigOfficer | 10K | $748K | 0.006% | 2026-02-02 | Fidelity Brokerage Services LLC |
| 2026-01-07 | Jacob DeWitteCEO / Director / 10% Shareholder | 655K | $62.6M | 0.419% | 2026-01-07 | J.P. Morgan Securities LLC |
| 2026-01-07 | Caroline CochranCOO / Director / 10% Shareholder | 655K | $62.6M | 0.419% | 2026-01-07 | J.P. Morgan Securities LLC |
| 2025-12-22 | Jacob DeWitteCEO / Director / 10% Shareholder | 570K | $47.4M | 0.365% | 2025-12-22 | J.P. Morgan Securities LLC |
| 2025-12-22 | Caroline CochranCOO / Director / 10% Shareholder | 570K | $47.4M | 0.365% | 2025-12-22 | J.P. Morgan Securities LLC |
| 2025-12-18 | Bealmear Richard CraigOfficer | 5K | $397K | 0.003% | 2025-12-18 | Fidelity Brokerage Services LLC |
| 2025-12-17 | Bealmear Richard CraigOfficer | 70K | $5.5M | 0.045% | 2025-12-17 | Fidelity Brokerage Services LLC |
| 2025-12-01 | Goodwin William Carroll MurphyOfficer | 6K | $519K | 0.004% | 2025-12-01 | Fidelity Brokerage Services LLC |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON2 holders report 5% or more of OKLO in their latest filing, all on Schedule 13D (active intent). The largest reported stake is Caroline Cochran at 11.1% of the class (20,559,091 shares), filed 2026-07-06 for an event on 2026-07-01.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-07-29 | 13G/Ano. 2 | BlackRock, Inc.parent holding company | 6.2M | 3.6% | 2026-06-30 |
| 2026-07-06 | 13D/Ano. 6 | Caroline Cochranindividual | 20.6M | 11.1% | 2026-07-01 |
| 2026-07-06 | 13D/Ano. 6 | Jacob DeWitteindividual | 20.6M | 11.1% | 2026-07-01 |
| 2026-03-27 | 13G/Ano. 2 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
13F holders
Tracked managers holding OKLO at their latest 13F. JSON6 of the 30 tracked managers held OKLO at their latest 13F, $43.9M in total at quarter-end prices. ARK Investment Management is the largest at $19.5M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 2 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| ARK Investment Management | 2026-06-30 | 372K | $19.5M | 0.13% | +21K |
| Millennium Management | 2026-06-30 | 279K | $14.6M | 0.01% | +222K |
| Two Sigma Investments | 2026-06-30 | 73K | $3.8M | 0.00% | -88K |
| Bridgewater Associates | 2026-06-30 | 56K | $2.9M | 0.01% | +1K |
| AQR Capital Management | 2026-06-30 | 32K | $1.7M | 0.00% | +7K |
| Citadel Advisors | 2026-06-30 | 28K | $1.5M | 0.00% | -221K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
Financials
SEC XBRL, as filed. JSONIn Q2 FY 2026 (quarter ended 2026-06-30) Oklo reported revenue of $1.2M, and net loss of $48.5M (-0.28 diluted EPS). In FY 2025 it generated -$82.2M of operating cash flow. As of 2026-06-30, cash was $1.64B against $700K of debt.
- Cash
- $1.64B
- Debt
- $700K
- Equity
- $3.27B
- Total assets
- $3.36B
- Shares outstanding
- 186,017,650
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q2 FY 2026 | 2026-06-30 | $1.2M | -$48.5M | -4011.2% | -0.28 |
| Q1 FY 2026 | 2026-03-31 | n/a | -$33.1M | n/a | -0.19 |
| Q4 FY 2025derived | 2025-12-31 | n/a | -$41.4M | n/a | n/a |
| Q3 FY 2025 | 2025-09-30 | n/a | -$29.7M | n/a | -0.20 |
| Q2 FY 2025 | 2025-06-30 | $0 | -$24.7M | n/a | -0.18 |
| Q1 FY 2025 | 2025-03-31 | n/a | -$9.8M | n/a | -0.07 |
| Q4 FY 2024derived | 2024-12-31 | n/a | -$12.3M | n/a | n/a |
| Q3 FY 2024 | 2024-09-30 | n/a | -$10.0M | n/a | -0.08 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-31 | n/a | -$105.7M | -$82.2M | $33.2M | n/a | n/a |
| FY 2024 | 2024-12-31 | n/a | -$73.6M | -$38.4M | $352K | n/a | n/a |
| FY 2023 | 2023-12-31 | n/a | -$32.2M | -$16.0M | $83K | $215.9M | n/a |
| FY 2022 | 2022-12-31 | n/a | $3.9M | -$955K | n/a | n/a | n/a |
| FY 2021 | 2021-12-31 | n/a | -$1.1M | -$1.9M | n/a | n/a | n/a |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-08-04 from the cover page.
What this page is
Oklo in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Oklo (OKLO), SEC CIK 1849056, listed on NYSE, classified by the SEC as electric services. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-09.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-11-02.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-07-29.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2025-03-24.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-29.JSON and CSV
- Company record
- EDGAR filing index for CIK 1849056Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of OKLO is sold short?
35,934,803 shares were held short at the 2026-10-15 settlement, 3.3 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is OKLO's daily short volume?
On 2026-11-02, 2,156,385 of the 3,769,484 OKLO shares reported to FINRA were sold short, 57.2% of the day's reported volume. Short volume is a flow for one day, not a position.
Does OKLO have fails to deliver?
The SEC's latest file shows 55,783 OKLO shares failed to deliver at settlement 2026-10-09. Fails are reported per settlement date and published twice a month with a lag.
Are OKLO insiders buying or selling?
Insiders at OKLO reported 41 open-market sells worth $20.6M in the last 90 days and no open-market buys. Latest filing: Hanson John (Chief of Staff) on 2026-10-29.
Have OKLO insiders filed to sell?
50 Form 144 notices on file for OKLO worth $254.9M at the prices reported; 24 in the last 90 days worth $3.0M. Latest: Bealmear Richard Craig filed on 2026-11-02 to sell 16,727 shares ($427K) from 2026-11-02.
Who owns 5% or more of OKLO?
2 holders report 5% or more of OKLO in their latest filing, all on Schedule 13D (active intent). The largest reported stake is Caroline Cochran at 11.1% of the class (20,559,091 shares), filed 2026-07-06 for an event on 2026-07-01.
What did OKLO report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) Oklo reported revenue of $1.2M, and net loss of $48.5M (-0.28 diluted EPS). In FY 2025 it generated -$82.2M of operating cash flow. As of 2026-06-30, cash was $1.64B against $700K of debt.
Which tracked 13F managers own OKLO?
6 of the 30 tracked 13F managers held OKLO shares at their latest filing, $43.9M in all. The largest: Cathie Wood's ARK Investment Management (372K shares, $19.5M), Izzy Englander's Millennium Management (279K shares, $14.6M), Two Sigma Investments (73K shares, $3.8M), Ray Dalio's Bridgewater Associates (56K shares, $2.9M), Cliff Asness's AQR Capital Management (32K shares, $1.7M), Ken Griffin's Citadel Advisors (28K shares, $1.5M).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.