Spenser Skates sold $513K of Amplitude (AMPL)

Executed Dec 24 2025, disclosed Dec 29 2025, 5 days later.

Value, as filed

$513K

42,743 sh × $12.01

Executed

Dec 24 2025

the trade date, as filed

Disclosed

Dec 29 2025

5 days after the trade

Return, 21 sessionsiFrom the disclosed entry session; derived

–

purchases only

Returns are measured on stock purchases only.

The filer

Spenser Skates Chief Executive Officer profile →

Spenser Skates (Chief Executive Officer) filed 3 Form 4 reports in the trailing twelve months (0 purchases, 3 sales), most often in Amplitude, Inc. (AMPL). The largest single filing was $4.4M of AMPL (400,000 sh × $10.99, as filed), executed Nov 11 2025.

The name

AMPL

Amplitude, Inc. AMPL · Technology · 21 filings in 24 months ticker →

Technology · Amplitude, Inc., together with its subsidiaries, provides an AI analytics platform that helps analyze customer behavior within digital prod…

More Technology filings→ Insider filings, newest first→ View the original filing at www.sec.gov→

Other filings by Spenser Skates in AMPL

AMPLSALE Amplitude, Inc. $2.3M
185,000 sh × $12.30
Exec Sep 10
Filed Sep 14 · 4:59 PM ET AMPLSALE Amplitude, Inc. $4.4M
400,000 sh × $10.99
Exec Nov 11 2025
Filed Nov 13 2025 · 5:30 PM ET