S

SEC EDGAR - Form 4 insider activity

Standard Nuclear, Inc. $STDN

Tracked equity - 5 filings indexed by Nortis

Nortis signal thesis

Cluster activity detected. Review whether the filings are open-market trades or routine compensation events.

0

OM buys - 90d

0

OM sells - 90d

5

Routine filings

5

Cluster filings

$1.34M

Largest trade

15/100

Avg signal score

Filing tape

Recent filings

Last 30d: 5
Tax WithholdingCLUSTERRoutine 15/100
filed 2026-10-19
GSOfficer

GHASEMIAN SHAHRAM - Chief Legal Officer - $60.3K

Shares were withheld to cover taxes on vesting stock - this is routine mechanics, not a discretionary insider sale. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Tax WithholdingCLUSTERRoutine 15/100
filed 2026-10-19
TACEO

Terrani Kurt Amir - Director, CEO and Director - $1.34M

Shares were withheld to cover taxes on vesting stock - this is routine mechanics, not a discretionary insider sale. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Tax WithholdingCLUSTERRoutine 15/100
filed 2026-10-19
MROfficer

Marrocco Keeley Rose - Chief Operating Officer - $90.0K

Shares were withheld to cover taxes on vesting stock - this is routine mechanics, not a discretionary insider sale. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Tax WithholdingCLUSTERRoutine 15/100
filed 2026-10-19
HJCFO

HARRILL KEVIN J - Chief Financial Officer - $398.1K

Shares were withheld to cover taxes on vesting stock - this is routine mechanics, not a discretionary insider sale. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Tax WithholdingCLUSTERRoutine 15/100
filed 2026-10-19
HEBoard

Hendrix Thomas Edward - Director, Executive Chairman - $1.16M

Shares were withheld to cover taxes on vesting stock - this is routine mechanics, not a discretionary insider sale. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing