Skates Spenser Insider Trades & Stock Holdings

CEO and President · Amplitude, Inc. · Latest filing Oct 2, 2026

Skates Spenser, CEO and President at Amplitude, Inc. has 3 Form 4 trades on file since Sep 30, 2026. Open-market activity: 0 purchases ($0) and 3 sales ($1.09M), net -$1.09M. Latest filing: disposed of 70.09K shares of $AMPL on Oct 2, 2026 at $14.52.

Trades on file

3

Open-market bought

$0

Open-market sold

$1.09M

Net open-market

-$1.09M

Latest filing

Oct 2, 2026

All insider trades by Skates Spenser

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Oct 2, 2026	$AMPL	Sell (Open-market sale) 10b5-1	70.09K	$14.52	$1.02M			+7.9%			CEO and President		—
Oct 1, 2026	$AMPL	Sell (Open-market sale) 10b5-1	3.54K	$14.45	$51.14K			+6.9%			CEO and President		—
Sep 30, 2026	$AMPL	Sell (Open-market sale) 10b5-1	1.37K	$14.45	$19.86K			+6.6%			CEO and President		—

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Skates Spenser traded

• $AMPL

Frequently asked questions

Has Skates Spenser been buying or selling stock?

Skates Spenser has 0 open-market purchases and 3 open-market sales on file, net -$1.09M. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was Skates Spenser's latest insider trade?

disposed of 70.09K shares of $AMPL on Oct 2, 2026 at $14.52.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.