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SEC EDGAR - Form 4 insider activity

General Motors $GM

Automotive - 6 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

2

OM sells - 90d

4

Routine filings

6

Cluster filings

$3.52M

Largest trade

34/100

Avg signal score

Filing tape

Recent filings

Last 30d: 0
Option ExerciseCLUSTERRoutine 15/100
filed 2026-08-03
DMOfficer

DIXTON GRANT MICHAEL - Executive Vice President - -

Option exercises are often compensation mechanics rather than a direct market view; what happens to the shares next matters more. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Option ExerciseCLUSTERRoutine 15/100
filed 2026-07-31
ASOfficer

Anderson Sterling - Exective Vice President - -

Option exercises are often compensation mechanics rather than a direct market view; what happens to the shares next matters more. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Open-market SellCLUSTERHigh signal 71/100
filed 2026-07-29
HROfficer

Harvey Rory - Executive Vice President - $772.3K

Insiders sell for many reasons (diversification, tax, personal); size and clustering matter more than a single sale. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Option ExerciseCLUSTERRoutine 15/100
filed 2026-07-29
BTCEO

Barra Mary T - Director, Chair & CEO - $2.58M

Option exercises are often compensation mechanics rather than a direct market view; what happens to the shares next matters more. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Open-market SellCLUSTERHigh signal 71/100
filed 2026-07-29
HCOfficer

Hatto Christopher - Vice President & CAO - $620.5K

Insiders sell for many reasons (diversification, tax, personal); size and clustering matter more than a single sale. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Option ExerciseCLUSTERRoutine 15/100
filed 2026-07-29
RLOfficer

Reuss Mark L - President - $3.52M

Option exercises are often compensation mechanics rather than a direct market view; what happens to the shares next matters more. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing