MarketPeel
Insider Trading Intelligence
MK

Michael Stuart Klein

OKLO
CHAIRMAN · OKLO INC. · CIK 0001327392
FILING MIX · LIFETIME56%/44%
BUYS
22
SELLS
17
TOTAL VALUE
$48.19M
COMPANIES
6
ACTIVE SINCE
Jun 2021
HOLDINGS NOW
25,501,834
AVG SELL PX
$71.99
TRADE KIND
SHOWING 39 / 39
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
9 backtested trades · 8 horizons · 15 pending
Forward-return performance of every backtestable P/S trade by Michael Stuart Klein, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d9+66.67%-4.86%+2.02%-6.88%-3.03%
14d9+55.56%-2.46%+2.88%-5.33%-1.96%
30d9+44.44%+6.23%+3.80%+3.17%+4.12%
60d9+44.44%+4.24%+4.33%-0.09%+3.56%
90d9(1 pending)+37.50%+64.90%+7.30%+57.60%+56.87%
180d9(1 pending)+37.50%+11.84%+9.15%+2.68%+18.44%
1y9(4 pending)+20.00%+6.24%+24.36%-18.12%-13.04%
2y9(9 pending)
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
OKLO · 160,000 shares · as of Sep 22, 2025
03,487,5006,975,00010,462,50013,950,0002022202320242025SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 22 buys / 17 sellsCOVERAGE · 21 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SKIL
SKILLSOFT CORP.
PURCHASEGRANT
Stock grant
17,50017,500Jun 30, 2026Jul 2, 2026View →
SKIL
SKILLSOFT CORP.
PURCHASE
12,43039,336Jun 25, 2026Jun 26, 2026View →
SKIL
SKILLSOFT CORP.
SALE
12,4300Jun 25, 2026Jun 26, 2026View →
CXIIU
CHURCHILL CAPITAL CORP XII
PURCHASE
See Remarks
350,000$10.00$3.50M350,000Apr 29, 2026Apr 29, 2026View →
CTEV
CLARITEV CORP
PURCHASEGRANT
Stock grant
8,97724,334Apr 29, 2026May 1, 2026View →
INFQ
INFLEQTION, INC.
PURCHASE
See Remarks
75,00075,000Feb 12, 2026Feb 17, 2026View →
INFQ
INFLEQTION, INC.
SALE
See Remarks
10,350,0000Feb 12, 2026Feb 17, 2026View →
INFQ
INFLEQTION, INC.
PURCHASE
See Remarks
10,650,00010,650,000Feb 12, 2026Feb 17, 2026View →
CCXIU
CHURCHILL CAPITAL CORP XI
PURCHASE
See Remarks
500,000$10.00$5.00M14,300,000Dec 18, 2025Dec 19, 2025View →
OKLO
OKLO INC.
SALE
10,000$135.20$1.35M150,000Sep 22, 2025Sep 24, 2025View →
OKLO
OKLO INC.
SALE
40,000$133.40$5.34M160,000Sep 22, 2025Sep 24, 2025View →
SKIL
SKILLSOFT CORP.
PURCHASEGRANT
Stock grant
12,43012,430Jul 17, 2025Jul 18, 2025View →
SKIL
SKILLSOFT CORP.
SALE
20,3060Jul 17, 2025Jul 18, 2025View →
SKIL
SKILLSOFT CORP.
PURCHASE
20,30626,906Jul 17, 2025Jul 18, 2025View →
OKLO
OKLO INC.
SALE
25,000$55.22$1.38M225,000Jun 23, 2025Jun 25, 2025View →
OKLO
OKLO INC.
SALE
12,100$53.71$649.8K212,900Jun 23, 2025Jun 25, 2025View →
OKLO
OKLO INC.
SALE
12,900$55.22$712.3K200,000Jun 23, 2025Jun 25, 2025View →
OKLO
OKLO INC.
SALE
150,000$62.74$9.41M250,000Jun 20, 2025Jun 23, 2025View →
OKLO
OKLO INC.
SALE
100,000$63.53$6.35M400,000Jun 18, 2025Jun 23, 2025View →
CTEV
CLARITEV CORP
PURCHASEGRANT
Stock grant
7,35615,357Apr 30, 2025May 2, 2025View →
OKLO
OKLO INC.
SALE
13,450,000500,000Nov 14, 2024Nov 18, 2024View →
SKIL
SKILLSOFT CORP.
PURCHASEGRANT
Stock grant
20,30620,306Jul 19, 2024Jul 23, 2024View →
SKIL
SKILLSOFT CORP.
SALE
3,7500Jul 18, 2024Jul 22, 2024View →
SKIL
SKILLSOFT CORP.
PURCHASE
3,7506,600Jul 18, 2024Jul 22, 2024View →
OKLO
OKLO INC.
PURCHASE
12,500,00013,950,000May 9, 2024Jul 2, 2024View →
OKLO
OKLO INC.
SALE
12,500,0000May 9, 2024Jul 2, 2024View →
OKLO
OKLO INC.
PURCHASE
12,500,00013,935,500May 9, 2024May 13, 2024View →
OKLO
OKLO INC.
SALE
12,500,0000May 9, 2024May 13, 2024View →
SKIL
SKILLSOFT CORP.
PURCHASEGRANT
Stock grant
75,00075,000Jul 20, 2023Jul 24, 2023View →
SKIL
SKILLSOFT CORP.
SALE
35,3980Jun 23, 2023Jun 23, 2023View →
SKIL
SKILLSOFT CORP.
PURCHASE
35,39857,019Jun 23, 2023Jun 23, 2023View →
SKIL
SKILLSOFT CORP.
SALE
21,6210Jun 23, 2022Jun 24, 2022View →
SKIL
SKILLSOFT CORP.
PURCHASE
21,62121,621Jun 23, 2022Jun 24, 2022View →
SKIL
SKILLSOFT CORP.
PURCHASEGRANT
Stock grant
35,39835,398Jun 23, 2022Jun 24, 2022View →
SKIL
SKILLSOFT CORP.
PURCHASEGRANT
Stock grant
21,62121,621Dec 28, 2021Dec 30, 2021View →
OKLO
OKLO INC.
PURCHASEGRANT
Stock grant
1,450,000$10.00$14.50M1,450,000Jul 12, 2021Jul 2, 2024View →
SKIL
SKILLSOFT CORP.
SALE
17,250,0000Jun 11, 2021Jun 14, 2021View →
SKIL
SKILLSOFT CORP.
PURCHASE
17,250,00017,250,000Jun 11, 2021Jun 14, 2021View →
SKIL
SKILLSOFT CORP.
PURCHASEGRANT
Stock grant
1,500,00016,300,000Jun 11, 2021Jun 14, 2021View →
Other insiders · OKLO
Loading peer insiders…
About this filer
CIK 0001327392
ROLE
Chairman
PRIMARY
OKLO
COMPANIES
6
ACTIVE SINCE
Jun 2021
MARKETPEEL · /INSIDER/0001327392DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback