Insider Ledger
Oklo Inc. (OKLO) insider buying and SEC filings
Oklo Inc. · CIK 1849056
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- NYSE
- Industry (SIC)
- Electric Services
- State of incorporation
- DE
- Fiscal year end
- Dec 31
- Former names
- AltC Acquisition Corp.
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$24.1M
Planned sales (10b5-1)
$451.8M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 29, 2026 | Sale | John Hanson (Chief of Staff) sold 1,034 shares at $26.71 ($28K). Holdings down <1% to 361,277 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 2, 2026, 4:30 PM ET |
| Oct 29, 2026 | Sale | Alexandra Renner (Chief Product Officer) sold 1,068 shares at $26.71 ($29K). Holdings down <1% to 593,750 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 2, 2026, 4:28 PM ET |
| Oct 20, 2026 | Planned (10b5-1) | Vivek Narayanadas (General Counsel & Secretary) sold 1,021 shares at $26.50 ($27K), marked as a 10b5-1 plan trade. Holdings down 9% to 10,669 shares. | SEC filing Filed Oct 22, 2026, 4:22 PM ET |
| Oct 19, 2026 | Planned (10b5-1) | Vivek Narayanadas (General Counsel & Secretary) sold 2,359 shares at $27.63 ($65K), marked as a 10b5-1 plan trade. Holdings down 13% to 15,810 shares. | SEC filing Filed Oct 20, 2026, 4:26 PM ET |
| Oct 14, 2026 | Sale | Alexandra Renner (Chief Product Officer) sold 688 shares at $30.75 ($21K). Holdings down <1% to 478,428 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 15, 2026, 4:22 PM ET |
| Oct 9, 2026 | Planned (10b5-1) | Vivek Narayanadas (General Counsel & Secretary) sold 364 shares at $34.69 ($13K), marked as a 10b5-1 plan trade. Holdings down 4% to 8,769 shares. | SEC filing Filed Oct 13, 2026, 4:39 PM ET |
| Oct 6, 2026 | Planned (10b5-1) | Vivek Narayanadas (General Counsel & Secretary) sold 288 shares at $37.29 ($11K), marked as a 10b5-1 plan trade. Holdings down 3% to 8,446 shares. | SEC filing Filed Oct 8, 2026, 4:15 PM ET |
| Oct 5, 2026 | Sale | Vivek Narayanadas (General Counsel & Secretary) sold 649 shares at $35.93 ($23K). Holdings down 7% to 8,734 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 6, 2026, 4:07 PM ET |
| Oct 1, 2026 | Planned (10b5-1) | Caroline Cochran (President / COO and Director) sold 120,000 shares directly and indirectly at about $36.51 ($4.4M), marked as a 10b5-1 plan trade. Direct holdings down 10% to 358,039 shares. | SEC filing Filed Oct 5, 2026, 4:02 PM ET |
| Oct 1, 2026 | Planned (10b5-1) | Jacob DeWitte (CEO and Director) sold 120,000 shares directly and indirectly at about $36.51 ($4.4M), marked as a 10b5-1 plan trade. Direct holdings down 9% to 391,533 shares. | SEC filing Filed Oct 5, 2026, 4:01 PM ET |
| Oct 1, 2026 | Planned (10b5-1) | Richard Craig Bealmear (CFO) sold 16,477 shares at $36.87 ($608K), marked as a 10b5-1 plan trade. Holdings down 3% to 461,642 shares. | SEC filing Filed Oct 5, 2026, 4:01 PM ET |
| Sep 28, 2026 | Sale | Alexandra Renner (Chief Product Officer) sold 1,100 shares at $37.39 ($41K). Holdings down <1% to 477,595 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 29, 2026 |
| Sep 28, 2026 | Sale | John Hanson (Chief of Staff) sold 1,100 shares at $37.39 ($41K). Holdings down <1% to 361,350 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 29, 2026 |
| Sep 28, 2026 | Sale | William Carroll Murphy Goodwin (Chief Strategy Officer) sold 1,775 shares at $37.39 ($66K). Holdings down 4% to 46,787 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 29, 2026 |
| Sep 14, 2026 | Sale | John M Jansen (Director) sold 6,354 shares at $36.67 ($233K). Holdings down 51% to 6,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 15, 2026 |
| Sep 9, 2026 | Planned (10b5-1) | Vivek Narayanadas (General Counsel & Secretary) sold 365 shares at $43.31 ($16K), marked as a 10b5-1 plan trade. Holdings down 4% to 8,159 shares. | SEC filing Filed Sep 10, 2026 |
| Sep 8, 2026 | Planned (10b5-1) | Vivek Narayanadas (General Counsel & Secretary) sold 238 shares at $42.06 ($10K), marked as a 10b5-1 plan trade. Holdings down 3% to 8,524 shares. | SEC filing Filed Sep 9, 2026 |
| Sep 4, 2026 | Planned (10b5-1) | Vivek Narayanadas (General Counsel & Secretary) sold 538 shares at $39.88 ($21K), marked as a 10b5-1 plan trade. Holdings down 6% to 8,075 shares. | SEC filing Filed Sep 8, 2026 |
| Sep 1, 2026 | Sale | Alexandra Renner (Chief Product Officer) sold 1,930 shares at $38.40 ($74K). Holdings down <1% to 475,022 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 3, 2026 |
| Sep 1, 2026 | Planned (10b5-1) | Richard Craig Bealmear (CFO) sold 16,430 shares at about $38.76 ($637K), marked as a 10b5-1 plan trade. Holdings down 3% to 455,976 shares. | SEC filing Filed Sep 3, 2026 |
| Sep 1, 2026 | Planned (10b5-1) | Caroline Cochran (President / COO and Director) sold 120,000 shares directly and indirectly at about $38.59 ($4.6M), marked as a 10b5-1 plan trade. Direct holdings down 9% to 398,039 shares. | SEC filing Filed Sep 2, 2026 |
| Sep 1, 2026 | Planned (10b5-1) | Jacob DeWitte (CEO and Director) sold 120,000 shares directly and indirectly at about $38.59 ($4.6M), marked as a 10b5-1 plan trade. Direct holdings down 8% to 431,533 shares. | SEC filing Filed Sep 2, 2026 |
| Aug 25, 2026 | Planned (10b5-1) | Vivek Narayanadas (General Counsel & Secretary) sold 223 shares at $40.80 ($9K), marked as a 10b5-1 plan trade. Holdings down 3% to 7,599 shares. | SEC filing Filed Aug 27, 2026 |
| Aug 24, 2026 | Sale | Alexandra Renner (Chief Product Officer) sold 557 shares at $39.77 ($22K). Holdings down <1% to 472,779 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 25, 2026 |
| Aug 24, 2026 | Sale | John Hanson (Chief of Staff) sold 539 shares at $39.77 ($21K). Holdings down <1% to 359,430 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 25, 2026 |
| Aug 24, 2026 | Sale | William Carroll Murphy Goodwin (Chief Legal & Strategy Officer) sold 11,592 shares at $39.77 ($461K). Holdings down 20% to 45,268 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 25, 2026 |
| Aug 24, 2026 | Planned (10b5-1) | Vivek Narayanadas (General Counsel & Secretary) sold 3,264 shares at $39.77 ($130K), marked as a 10b5-1 plan trade. Holdings down 29% to 7,822 shares. | SEC filing Filed Aug 25, 2026 |
| Aug 3, 2026 | Planned (10b5-1) | Caroline Cochran (President / COO and Director) sold 120,000 shares directly and indirectly at about $40.87 ($4.9M), marked as a 10b5-1 plan trade. Direct holdings down 8% to 438,039 shares. | SEC filing Filed Aug 5, 2026 |
| Aug 3, 2026 | Planned (10b5-1) | Jacob DeWitte (CEO and Director) sold 120,000 shares directly and indirectly at about $40.87 ($4.9M), marked as a 10b5-1 plan trade. Direct holdings down 8% to 471,533 shares. | SEC filing Filed Aug 5, 2026 |
| Aug 3, 2026 | Planned (10b5-1) | Richard Craig Bealmear (CFO) sold 16,452 shares at $38.80 ($638K), marked as a 10b5-1 plan trade. Holdings down 4% to 450,332 shares. | SEC filing Filed Aug 5, 2026 |
| Jul 1, 2026 | Planned (10b5-1) | Richard Craig Bealmear (CFO) sold 16,321 shares at $52.63 ($859K), marked as a 10b5-1 plan trade. Holdings down 4% to 444,557 shares. | SEC filing Filed Jul 6, 2026 |
| Jul 1, 2026 | Planned (10b5-1) | Caroline Cochran (President / COO and Director) sold 200,000 shares directly and indirectly at about $52.93 ($10.6M), marked as a 10b5-1 plan trade. Direct holdings down 11% to 478,039 shares. | SEC filing Filed Jul 2, 2026 |
| Jul 1, 2026 | Planned (10b5-1) | Jacob DeWitte (CEO and Director) sold 200,000 shares directly and indirectly at about $52.93 ($10.6M), marked as a 10b5-1 plan trade. Direct holdings down 10% to 511,533 shares. | SEC filing Filed Jul 2, 2026 |
| Jun 1, 2026 | Planned (10b5-1) | Richard Craig Bealmear (CFO) sold 73,081 shares at about $68.42 ($5.0M), marked as a 10b5-1 plan trade. Holdings down 14% to 438,699 shares. | SEC filing Filed Jun 3, 2026 |
| Jun 1, 2026 | Planned (10b5-1) | Caroline Cochran (President / COO and Director) sold 200,000 shares directly and indirectly at about $68.29 ($13.7M), marked as a 10b5-1 plan trade. Direct holdings down 10% to 538,039 shares. | SEC filing Filed Jun 2, 2026 |
| Jun 1, 2026 | Planned (10b5-1) | Jacob DeWitte (CEO and Director) sold 200,000 shares directly and indirectly at about $68.29 ($13.7M), marked as a 10b5-1 plan trade. Direct holdings down 10% to 571,533 shares. | SEC filing Filed Jun 2, 2026 |
| May 20, 2026 | Sale | William Carroll Murphy Goodwin (Chief Legal & Strategy Officer) sold 10,548 shares at $58.04 ($612K). Holdings down 23% to 36,175 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 21, 2026 |
| May 1, 2026 | Planned (10b5-1) | Richard Craig Bealmear (CFO) sold 16,216 shares at about $69.92 ($1.1M), marked as a 10b5-1 plan trade. Holdings down 4% to 391,762 shares. | SEC filing Filed May 5, 2026 |
| May 1, 2026 | Planned (10b5-1) | Caroline Cochran (President / COO and Director) sold 200,000 shares directly and indirectly at about $70.23 ($14.0M), marked as a 10b5-1 plan trade. Direct holdings down 9% to 598,039 shares. | SEC filing Filed May 4, 2026 |
| May 1, 2026 | Planned (10b5-1) | Jacob DeWitte (CEO and Director) sold 200,000 shares directly and indirectly at about $70.23 ($14.0M), marked as a 10b5-1 plan trade. Direct holdings down 9% to 631,533 shares. | SEC filing Filed May 4, 2026 |
| Apr 1, 2026 | Planned (10b5-1) | Caroline Cochran (President / COO and Director) sold 200,000 shares directly and indirectly at about $50.35 ($10.1M), marked as a 10b5-1 plan trade. Direct holdings down 8% to 658,039 shares. | SEC filing Filed Apr 3, 2026 |
| Apr 1, 2026 | Planned (10b5-1) | Jacob DeWitte (CEO and Director) sold 200,000 shares directly and indirectly at about $50.35 ($10.1M), marked as a 10b5-1 plan trade. Direct holdings down 8% to 691,533 shares. | SEC filing Filed Apr 3, 2026 |
| Apr 1, 2026 | Planned (10b5-1) | Richard Craig Bealmear (CFO) sold 16,342 shares at $51.08 ($835K), marked as a 10b5-1 plan trade. Holdings down 4% to 386,008 shares. | SEC filing Filed Apr 3, 2026 |
| Mar 27, 2026 | Sale | John M Jansen (Director) sold 10,500 shares at $51.52 ($541K). Holdings down 46% to 12,354 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 30, 2026 |
| Mar 27, 2026 | Sale | Richard Kinzley (Director) sold 4,000 shares indirectly (by trust) at $52.09 ($208K). Holdings by trust down 19% to 16,654 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 30, 2026 |
| Mar 25, 2026 | Sale | Patrick Joseph Schweiger (Chief Technology Officer) sold 5,561 shares at $56.48 ($314K). Holdings down 22% to 19,430 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 26, 2026 |
| Mar 25, 2026 | Sale | William Carroll Murphy Goodwin (Chief Legal & Strategy Officer) sold 10,639 shares at $56.48 ($601K). Holdings down 29% to 26,037 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 26, 2026 |
| Mar 13, 2026 | Sale | Caroline Cochran (President / COO and Director) sold 117,788 shares directly and indirectly at $60.00 ($7.1M). Direct holdings down 6% to 718,039 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 16, 2026 |
| Mar 13, 2026 | Sale | Jacob DeWitte (CEO and Director) sold 117,788 shares directly and indirectly at $60.00 ($7.1M). Direct holdings down 9% to 751,533 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 16, 2026 |
| Mar 13, 2026 | Sale | Richard Craig Bealmear (CFO) sold 72,090 shares at $60.00 ($4.3M). Holdings down 16% to 386,008 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 16, 2026 |
| Mar 9, 2026 | Sale | William Carroll Murphy Goodwin (Chief Legal & Strategy Officer) sold 2,820 shares at $56.69 ($160K). Holdings down 15% to 15,991 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 10, 2026 |
| Mar 3, 2026 | Planned (10b5-1) | Richard Craig Bealmear (CFO) sold 5,839 shares at $61.93 ($362K), marked as a 10b5-1 plan trade. Holdings down 2% to 294,255 shares. | SEC filing Filed Mar 5, 2026 |
| Mar 2, 2026 | Planned (10b5-1) | Caroline Cochran (President / COO and Director) sold 200,000 shares directly and indirectly at about $63.29 ($12.7M), marked as a 10b5-1 plan trade. Direct holdings down 8% to 679,024 shares. | SEC filing Filed Mar 4, 2026 |
| Mar 2, 2026 | Planned (10b5-1) | Jacob DeWitte (CEO and Director) sold 200,000 shares directly and indirectly at about $63.29 ($12.7M), marked as a 10b5-1 plan trade. Direct holdings down 8% to 688,196 shares. | SEC filing Filed Mar 4, 2026 |
| Mar 2, 2026 | Planned (10b5-1) | Richard Craig Bealmear (CFO) sold 16,257 shares at $60.00 ($975K), marked as a 10b5-1 plan trade. Holdings down 5% to 294,255 shares. | SEC filing Filed Mar 3, 2026 |
| Feb 2, 2026 | Planned (10b5-1) | Richard Craig Bealmear (CFO) sold 9,726 shares at about $76.93 ($748K), marked as a 10b5-1 plan trade. Holdings down 5% to 196,913 shares. | SEC filing Filed Feb 4, 2026 |
| Feb 2, 2026 | Planned (10b5-1) | Jacob DeWitte (CEO and Director) sold 200,000 shares directly and indirectly at about $74.96 ($15.0M), marked as a 10b5-1 plan trade. Direct holdings down 7% to 748,197 shares. | SEC filing Filed Feb 4, 2026 |
| Feb 2, 2026 | Planned (10b5-1) | Caroline Cochran (President / COO and Director) sold 200,000 shares directly and indirectly at about $74.96 ($15.0M), marked as a 10b5-1 plan trade. Direct holdings down 8% to 739,023 shares. | SEC filing Filed Feb 4, 2026 |
| Jan 9, 2026 | Planned (10b5-1) | Caroline Cochran (President / COO and Director) sold 91,628 shares directly and indirectly at about $111.84 ($10.2M), marked as a 10b5-1 plan trade. Direct holdings down 3% to 799,023 shares. | SEC filing Filed Jan 13, 2026 |
| Jan 9, 2026 | Planned (10b5-1) | Jacob DeWitte (CEO and Director) sold 91,628 shares directly and indirectly at about $111.84 ($10.2M), marked as a 10b5-1 plan trade. Direct holdings down 3% to 808,197 shares. | SEC filing Filed Jan 13, 2026 |
| Jan 7–8, 2026 | Planned (10b5-1) | Caroline Cochran (President / COO and Director) sold 328,372 shares directly and indirectly between Jan 7 and Jan 8 at about $98.92 ($32.5M), marked as a 10b5-1 plan trade. Direct holdings down 10% to 825,764 shares. | SEC filing Filed Jan 9, 2026 |
| Jan 7–8, 2026 | Planned (10b5-1) | Jacob DeWitte (CEO and Director) sold 328,372 shares directly and indirectly between Jan 7 and Jan 8 at about $98.92 ($32.5M), marked as a 10b5-1 plan trade. Direct holdings down 10% to 834,937 shares. | SEC filing Filed Jan 9, 2026 |
| Jan 5, 2026 | Planned (10b5-1) | Caroline Cochran (President / COO and Director) sold 200,000 shares indirectly (by trust) at about $90.29 ($18.1M), marked as a 10b5-1 plan trade. Holdings by trust down 6% to 1,480,000 shares. | SEC filing Filed Jan 6, 2026 |
| Jan 5, 2026 | Planned (10b5-1) | Jacob DeWitte (CEO and Director) sold 200,000 shares indirectly (by trust) at about $90.29 ($18.1M), marked as a 10b5-1 plan trade. Holdings by trust down 6% to 1,480,000 shares. | SEC filing Filed Jan 6, 2026 |
| Dec 22, 2025 | Planned (10b5-1) | Caroline Cochran (President / COO and Director) sold 840,000 shares indirectly (by trust) at about $82.32 ($69.1M), marked as a 10b5-1 plan trade. Holdings by trust down 21% to 1,580,000 shares. | SEC filing Filed Dec 23, 2025 |
| Dec 22, 2025 | Planned (10b5-1) | Jacob DeWitte (CEO and Director) sold 840,000 shares indirectly (by trust) at about $82.32 ($69.1M), marked as a 10b5-1 plan trade. Holdings by trust down 21% to 1,580,000 shares. | SEC filing Filed Dec 23, 2025 |
| Dec 18, 2025 | Sale | Richard Craig Bealmear (CFO) sold 5,159 shares at $76.97 ($397K). Holdings down 3% to 196,913 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 19, 2025 |
| Dec 1, 2025 | Sale | William Carroll Murphy Goodwin (Chief Legal & Strategy Officer) sold 5,864 shares at $88.42 ($518K). Holdings down 30% to 13,620 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 2, 2025 |
| Nov 19, 2025 | Sale | William Carroll Murphy Goodwin (Chief Legal & Strategy Officer) sold 11,936 shares at $101.84 ($1.2M). Holdings down 58% to 8,750 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 20, 2025 |
66 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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