Liu Curtis 4
4 · Amplitude, Inc. · Filed Mar 10, 2026
Research Summary
AI-generated summary of this filing
Amplitude (AMPL) 10% Owner Curtis Liu Sells 33,201 Shares
What Happened
- Curtis Liu (reported as a 10% owner) sold 33,201 Amplitude (AMPL) shares in an open-market transaction on March 6, 2026. The weighted-average sale price was $8.01, generating approximately $265,840 in proceeds. This was a sale (not a purchase) and was executed pursuant to a pre-established 10b5-1 trading plan.
Key Details
- Transaction date: 2026-03-06.
- Price: range $8.00–$8.04; weighted average $8.01 (multiple trades). Total proceeds ≈ $265,840.
- Shares owned after transaction: not specified in the supplied data; footnote indicates holdings include 568,585 restricted stock units.
- Notable footnotes: sale effected under a 10b5-1 plan adopted November 26, 2025; reporting person can provide a breakdown of the number of shares sold at each price within the stated range.
- Filing timeliness: Form 4 filed 2026-03-10 — appears to be timely (filed within required reporting window).
Context
- The sale was made under a 10b5-1 plan, which typically reflects a pre-authorized trading arrangement rather than an ad-hoc decision. As a 10% owner, Liu’s transactions are reportable insider activity; sales do not necessarily indicate negative views about the company.
Insider Transaction Report
Form 4
Amplitude, Inc.AMPL
Liu Curtis
DirectorChief Technology Officer10% Owner
Transactions
- Sale
Class A Common Stock
[F1][F2][F3]2026-03-06$8.01/sh−33,201$265,840→ 603,756 total
Footnotes (3)
- [F1]The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on November 26, 2025.
- [F2]This transaction was executed in multiple trades at prices ranging from $8.00 to $8.04. 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.
- [F3]Includes 568,585 restricted stock units.
Signature
/s/ Elizabeth Fisher, as attorney in fact for Liu Curtis|2026-03-10