Spenser Skates sold $2.3M of Amplitude (AMPL)

Executed Sep 10, disclosed Sep 14, 4 days later.

Value, as filed

$2.3M

185,000 sh × $12.30

Executed

Sep 10

the trade date, as filed

Disclosed

Sep 14

4 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 6 Form 4 reports in the trailing twelve months (0 purchases, 6 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 · 24 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. $117K
6,651 sh × $17.53
Exec Oct 28
Filed Oct 28 · 5:45 PM ET AMPLSALE Amplitude, Inc. $1.9M
107,136 sh × $17.52
Exec Oct 23
Filed Oct 27 · 4:45 PM ET AMPLSALE Amplitude, Inc. $1.0M
70,087 sh × $14.52
Exec Oct 2
Filed Oct 6 · 4:17 PM ET AMPLSALE Amplitude, Inc. $513K
42,743 sh × $12.01
Exec Dec 24 2025
Filed Dec 29 2025 · 5:30 PM ET AMPLSALE Amplitude, Inc. $4.4M
400,000 sh × $10.99
Exec Nov 11 2025
Filed Nov 13 2025 · 5:30 PM ET