A

SEC EDGAR - Form 4 insider activity

Amplitude, Inc. $AMPL

Tracked equity - 4 filings indexed by Nortis

Nortis signal thesis

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

2

OM buys - 90d

0

OM sells - 90d

2

Routine filings

4

Cluster filings

-

Largest trade

50/100

Avg signal score

Filing tape

Recent filings

Last 30d: 4
Grant / AwardCLUSTERRoutine 15/100
filed 2026-10-07
SEBoard

Schultz Erica - Director - -

This is compensation-related stock, not a purchase decision - it should not be read as an open-market buy. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Grant / AwardCLUSTERRoutine 15/100
filed 2026-10-07
TTBoard

Tzuo Tien - Director - -

This is compensation-related stock, not a purchase decision - it should not be read as an open-market buy. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Reported BuyCLUSTERHigh signal 85/100
filed 2026-10-06
SSCEO

Skates Spenser - Director, CEO and President, 10% Owner - -

Open-market purchases use the insider's own money, so they are generally more informative than awards or option mechanics. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Reported BuyCLUSTERHigh signal 85/100
filed 2026-10-02
SSCEO

Skates Spenser - Director, CEO and President, 10% Owner - -

Open-market purchases use the insider's own money, so they are generally more informative than awards or option mechanics. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing