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Amplitude, Inc. (AMPL)

Amplitude, Inc. (AMPL) Insider Trading

Directors, officers and holders of more than 10% of AMPL report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 142 transactions on file: 0 with code P, 13 with code S and 37 with other codes.

DateInsiderCodeShares
Oct 28, 2026Skates SpenserC Conversion6,651
Oct 28, 2026Skates SpenserS Sale6,651
Oct 28, 2026Skates SpenserC Conversion6,651
Oct 26, 2026Skates SpenserC Conversion300
Oct 26, 2026Skates SpenserC Conversion300
Oct 26, 2026Skates SpenserS Sale200
Oct 26, 2026Skates SpenserS Sale100
Oct 23, 2026Skates SpenserC Conversion107,136
Oct 23, 2026Skates SpenserC Conversion107,136
Oct 23, 2026Skates SpenserS Sale107,136
Oct 15, 2026Raji Vijaye GaneshA Award37,851
Oct 5, 2026Schultz EricaA Award892
Oct 5, 2026Tzuo TienA Award818
Oct 2, 2026Skates SpenserC Conversion70,087
Oct 2, 2026Skates SpenserS Sale70,087
Oct 2, 2026Skates SpenserC Conversion70,087
Oct 1, 2026Skates SpenserS Sale3,539
Oct 1, 2026Skates SpenserC Conversion3,539
Oct 1, 2026Skates SpenserC Conversion3,539
Sep 30, 2026Skates SpenserC Conversion1,374
Sep 30, 2026Skates SpenserS Sale1,374
Sep 30, 2026Skates SpenserC Conversion1,374
Sep 10, 2026Skates SpenserC Conversion185,000
Sep 10, 2026Skates SpenserC Conversion185,000
Sep 10, 2026Skates SpenserS Sale185,000
Sep 4, 2026Crook Nathaniel GlennS Sale300,000
Aug 17, 2026Casey AndrewF Tax Payment72,814
Aug 17, 2026Liu CurtisF Tax Payment53,878
Aug 17, 2026Skates SpenserF Tax Payment52,369
Aug 17, 2026Crook Nathaniel GlennF Tax Payment109,368
Jul 8, 2026Liu CurtisG Gift175,000
Jul 8, 2026Liu CurtisG Gift175,000
Jul 5, 2026Schultz EricaA Award1,659
Jul 5, 2026Tzuo TienA Award1,521
Jun 12, 2026Wong CatherineS Sale7,453
Jun 9, 2026Gill Ronald SA Award24,857
Jun 9, 2026Schultz EricaA Award24,857
Jun 9, 2026Wong CatherineA Award24,857
Jun 9, 2026Whitehurst James MA Award24,857
Jun 9, 2026Grady Patrick WA Award24,857
Jun 1, 2026Liu CurtisS Sale22,786
Jun 1, 2026Liu CurtisS Sale22,201
May 15, 2026Skates SpenserF Tax Payment39,562
May 15, 2026Casey AndrewF Tax Payment64,872
May 15, 2026Liu CurtisF Tax Payment40,279
May 15, 2026Crook Nathaniel GlennF Tax Payment101,292
May 4, 2026Liu CurtisS Sale17,586
Apr 21, 2026Skates SpenserA Award1,323,119
Apr 15, 2026Casey AndrewA Award431,754
Apr 15, 2026Crook Nathaniel GlennA Award974,930

The full Form 4 history is on the AMPL company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.