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 $10.3M · 8net −$10.3M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 18Sep 23Sep 28

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—

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—