Form4insider filings, from the source

Company · CIK 0001849056 · SIC 4911 — Electric Services · NYSE

Oklo Inc. · OKLO

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $48.4M · 20net −$48.4M
$10k$10k$1M$1M$100M$100MbuyssalesMay 31Jun 17Jul 5Jul 23Aug 10Aug 28Sep 15

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 14, 2026 GForm 4 →Sep 16, 4:41 pm EDTAlexandra RennerChief Product Officer6,763——116,390—
Sep 14, 2026 SForm 4 →Sep 15, 4:27 pm EDTJohn M JansenDirector6,354$36.67$233,0016,000−51.4%
Sep 13, 2026 MForm 4 →Sep 15, 4:28 pm EDTAlexandra RennerChief Product Officer1,202——476,224—
Sep 13, 2026 MForm 4 →Sep 15, 4:26 pm EDTJohn HansonChief of Staff961——360,391—
Sep 11, 2026 MForm 4 →Sep 15, 4:25 pm EDTVivek NarayanadasGeneral Counsel & Secretary210——8,369—
Sep 9, 2026 SForm 4 →Sep 10, 4:34 pm EDTVivek NarayanadasGeneral Counsel & Secretary365$43.31$15,8088,159−4.28%10b5-1
Sep 8, 2026 SForm 4 →Sep 9, 4:28 pm EDTVivek NarayanadasGeneral Counsel & Secretary238$42.06$10,0108,524−2.72%10b5-1
Sep 4, 2026 SForm 4 →Sep 8, 4:24 pm EDTVivek NarayanadasGeneral Counsel & Secretary538$39.88$21,4558,075−6.25%10b5-1
Sep 3, 2026 MForm 4 →Sep 8, 4:24 pm EDTVivek NarayanadasGeneral Counsel & Secretary1,701——8,762—10b5-1
Sep 1, 2026 SForm 4 →Sep 3, 4:24 pm EDTRichard Craig BealmearChief Financial Officer16,430$38.76$636,827455,976−3.48%10b5-1
Sep 1, 2026 MForm 4 →Sep 3, 4:24 pm EDTRichard Craig BealmearChief Financial Officer22,096$3.18$70,265461,642—10b5-1
Sep 1, 2026 SForm 4 →Sep 3, 4:23 pm EDTAlexandra RennerChief Product Officer1,930$38.40$74,112475,022−0.40%
Sep 1, 2026 SForm 4 →Sep 2, 4:31 pm EDTCaroline CochranCo-Founder, COO, Director, 10% Owner120,000$38.59$4,631,254496,483−19.5%
Sep 1, 2026 SForm 4 →Sep 2, 4:29 pm EDTJacob DeWitteCo-Founder, CEO, Director, 10% Owner120,000$38.59$4,631,254529,479−18.5%
Aug 31, 2026 MForm 4 →Sep 1, 4:35 pm EDTAlexandra RennerChief Product Officer4,173——476,952—
Aug 25, 2026 SForm 4 →Aug 27, 4:34 pm EDTVivek NarayanadasGeneral Counsel & Secretary223$40.80$9,0987,599−2.85%10b5-1
Aug 24, 2026 SForm 4 →Aug 25, 4:10 pm EDTAlexandra RennerChief Product Officer557$39.77$22,152472,779−0.12%
Aug 24, 2026 SForm 4 →Aug 25, 4:09 pm EDTJohn HansonChief of Staff539$39.77$21,436359,430−0.15%
Aug 24, 2026 SForm 4 →Aug 25, 4:08 pm EDTWilliam Carroll Murphy GoodwinChief Legal & Strategy Officer11,592$39.77$461,01445,268−20.4%
Aug 24, 2026 SForm 4 →Aug 25, 4:07 pm EDTVivek NarayanadasGeneral Counsel & Secretary3,264$39.77$129,8097,822−29.4%10b5-1
Aug 21, 2026 MForm 4 →Aug 25, 4:07 pm EDTVivek NarayanadasGeneral Counsel & Secretary4,806——11,086—10b5-1
Aug 13, 2026 MForm 4 →Aug 17, 4:21 pm EDTAlexandra RennerChief Product Officer1,201——473,336—
Aug 13, 2026 MForm 4 →Aug 17, 4:18 pm EDTJohn HansonChief of Staff961——359,969—
Aug 12, 2026 MForm 4 →Aug 14, 4:07 pm EDTWilliam Carroll Murphy GoodwinChief Legal & Strategy Officer20,685——56,860—
Aug 3, 2026 SForm 4 →Aug 5, 4:07 pm EDTRichard Craig BealmearChief Financial Officer16,452$38.80$638,338450,332−3.52%10b5-1
Aug 3, 2026 MForm 4 →Aug 5, 4:07 pm EDTRichard Craig BealmearChief Financial Officer22,096$3.18$70,265455,976—10b5-1
Aug 3, 2026 MForm 4 →Aug 5, 4:06 pm EDTVivek NarayanadasGeneral Counsel & Secretary1,014——6,280—
Aug 3, 2026 SForm 4 →Aug 5, 4:06 pm EDTCaroline CochranCo-Founder, COO, Director, 10% Owner120,000$40.87$4,904,396516,483−18.9%10b5-1
Aug 3, 2026 SForm 4 →Aug 5, 4:05 pm EDTJacob DeWitteCo-Founder, CEO, Director, 10% Owner120,000$40.87$4,904,396549,479−17.9%10b5-1
Jul 1, 2026 SForm 4 →Jul 6, 4:14 pm EDTRichard Craig BealmearChief Financial Officer16,321$52.63$858,974444,557−3.54%10b5-1
Jul 1, 2026 MForm 4 →Jul 6, 4:14 pm EDTRichard Craig BealmearChief Financial Officer22,096$3.18$70,265450,332—10b5-1
Jul 1, 2026 SForm 4 →Jul 2, 4:06 pm EDTJacob DeWitteCo-Founder, CEO, Director, 10% Owner200,000$52.93$10,585,600569,479−26.0%
Jul 1, 2026 SForm 4 →Jul 2, 4:05 pm EDTCaroline CochranCo-Founder, COO, Director, 10% Owner200,000$52.93$10,585,600536,483−27.2%
Jun 1, 2026 SForm 4 →Jun 3, 4:25 pm EDTRichard Craig BealmearChief Financial Officer73,081$68.42$5,000,411438,699−14.3%10b5-1
Jun 1, 2026 GMForm 4 →Jun 3, 4:25 pm EDTRichard Craig BealmearChief Financial Officer124,196$3.18$388,265444,557—10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 13, 2026 MForm 4 →Sep 15, 4:28 pm EDTAlexandra RennerChief Product Officer1,202——129,642—
Sep 13, 2026 MForm 4 →Sep 15, 4:26 pm EDTJohn HansonChief of Staff961——55,121—
Sep 11, 2026 MForm 4 →Sep 15, 4:25 pm EDTVivek NarayanadasGeneral Counsel & Secretary210——48,335—
Sep 3, 2026 MForm 4 →Sep 8, 4:24 pm EDTVivek NarayanadasGeneral Counsel & Secretary1,701——2,746—10b5-1
Sep 1, 2026 MForm 4 →Sep 3, 4:24 pm EDTRichard Craig BealmearChief Financial Officer22,096——614,019—10b5-1
Aug 31, 2026 MForm 4 →Sep 1, 4:35 pm EDTAlexandra RennerChief Product Officer4,173——48,001—
Aug 21, 2026 MForm 4 →Aug 25, 4:07 pm EDTVivek NarayanadasGeneral Counsel & Secretary4,806——13,449—10b5-1
Aug 13, 2026 MForm 4 →Aug 17, 4:21 pm EDTAlexandra RennerChief Product Officer1,201——51,659—
Aug 13, 2026 MForm 4 →Aug 17, 4:18 pm EDTJohn HansonChief of Staff961——41,327—
Aug 12, 2026 MForm 4 →Aug 14, 4:07 pm EDTWilliam Carroll Murphy GoodwinChief Legal & Strategy Officer20,685——125,207—
Aug 3, 2026 MForm 4 →Aug 5, 4:07 pm EDTRichard Craig BealmearChief Financial Officer22,096——636,115—10b5-1
Aug 3, 2026 MForm 4 →Aug 5, 4:06 pm EDTVivek NarayanadasGeneral Counsel & Secretary1,014——18,255—
Jul 1, 2026 MForm 4 →Jul 6, 4:14 pm EDTRichard Craig BealmearChief Financial Officer22,096——658,211—10b5-1
Jun 11, 2026 AForm 4 →Jun 15, 4:48 pm EDTDerek T. KanDirector3,213——7,912—
Jun 11, 2026 AForm 4 →Jun 15, 4:46 pm EDTDavid A ChristianDirector3,213——7,912—
Jun 11, 2026 AForm 4 →Jun 15, 4:45 pm EDTRichard KinzleyDirector3,213——3,213—
Jun 11, 2026 AForm 4 →Jun 15, 4:43 pm EDTJohn M JansenDirector3,213——3,213—
Jun 11, 2026 AForm 4 →Jun 15, 4:41 pm EDTMichael N. Thompson Jr.Director3,213——6,659—
Jun 11, 2026 AForm 4 →Jun 15, 4:40 pm EDTDaniel B PonemanDirector3,213——6,659—
Jun 11, 2026 AForm 4 →Jun 15, 4:33 pm EDTDavid G ParkDirector3,213——7,912—
Jun 11, 2026 AForm 4 →Jun 15, 4:32 pm EDTMark T PetersDirector3,213——7,912—
Jun 1, 2026 MForm 4 →Jun 3, 4:25 pm EDTRichard Craig BealmearChief Financial Officer122,096——680,307—10b5-1