Catherine Wong - 12 Jun 2026 Form 4 Insider Report for Amplitude, Inc. (AMPL)

Reporting relationship: Director
Issuer ticker: AMPL
Reported as of: 12 Jun 2026
Net transaction value: -$50,580
SEC form: 4
Accepted by SEC: 15 Jun 2026, 16:26:36 UTC
Prior SEC filing: 11 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Fisher, Elizabeth, as attorney in fact for Catherine Wong

Key filing fact

Catherine Wong filed Form 4 for Amplitude, Inc. (AMPL) on 15 Jun 2026.

Key facts

This page summarizes Catherine Wong's Form 4 filing for Amplitude, Inc. (AMPL).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 15 Jun 2026, 16:26.

Change

Previous filing in this sequence was filed on 11 Jun 2026.
Current net transaction value: -$50,580.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001744910 Primary reporting owner

Wong Catherine

Relationship: Director
Address: C/O AMPLITUDE,INC., 201 THIRD ST., SUITE 200, SAN FRANCISCO
Signature: /s/ Fisher, Elizabeth, as attorney in fact for Catherine Wong
Signature date: 15 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AMPL transaction

Class A Common Stock

Sale

Transaction value: $50,580
Shares: -7,453
Change %: -6.3%
Price: $6.79
Shares after: 111,462
Date: 12 Jun 2026
Ownership: Direct
Footnotes: F1, F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 3 footnotes

Footnote F1

Shares sold to satisfy tax obligations in connection with the vesting of restricted stock units ("RSUs"), pursuant to a 10b5-1 trading plan adopted by the Reporting Person on December 11, 2025.

Footnote F2

This transaction was executed in multiple trades in prices ranging from $6.5800 to $6.9400, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

Footnote F3

Includes 24,857 RSUs.