InsiderTrades

Form 4 for STDN Standard Nuclear, Inc.

Accepted 2026-07-17 20:58:21 ET · period of report 2026-07-15 · accession 0001628280-26-048733 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
M 2026-07-17 20:58 2026-07-15+ STDN HARRILL KEVIN J CFO A - Grant $0.00 +646.9K 1.59M +69% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Class A common stock 2026-07-15 A A 100,000 $0.00 1,041,222 D — — (F1) Represents shares of Class A Common Stock underlying an award of restricted stock units ("RSUs"). The RSUs will vest over four years, with 25% vesting on June 1, 2027 and the remainder vesting in equal monthly installments thereafter, subject to the Reporting Person's continued service through each vesting date.
2 Common Class A common stock 2026-07-17 A A 546,937 $0.00 1,588,159 D — — (F2) Represents shares of Class A Common Stock underlying an award of RSUs. The RSUs will vest over 18 months in quarterly installments of 1/6th, subject to the Reporting Persons continued service through each vesting date.