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Company
▲ Purchases (0 ops.)
▼ Sales (5 ops.)
Latest filing published 18 Aug 2026 for Amplitude, Inc., €606k.
Filing timeline
BuySaleCurtis Liu
Insider track record
Disclosed buys
0
Disclosed sells
5
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Curtis Liu: trading record in brief
Curtis Liu is a declared insider of Amplitude, Inc. (senior executive), with filings sourced from SEC (Form 4). Over a trading history stretching from 21 September 2021 to 17 August 2026, the count stands at 21 filings.
The open-market record consists of 5 sales worth €13.6M, with no purchase. Besides market trades, the filings include 7 share grants and 4 option exercises. Since January 2026: no purchases and 3 sales on the market.
Most recently, on 18 August 2026, the filings show a share grant worth €606k in Amplitude, Inc. Filings reach the SEC (Form 4) feed a median of 4 days after the trade. For comparison, the SEC allows two business days to file a Form 4. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
Companies and markets linked to Curtis Liu
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations15 total
53,878 shares@ US$13.030.042% mcap6.3% of flowClass A Common StockSEC:0001866692-26-000013:0
22,201 shares@ US$8.02590.0099% mcap1.0% of flowClass A Common StockSEC:0001883022-26-000014:0
417,827 shares0Class A Common StockSEC:0001883022-26-000008:0
33,201 shares@ US$8.0070.015% mcap1.5% of flowClass A Common StockSEC:0001883022-26-000006:0
30,061 shares@ US$8.00172.3% of flowClass A Common StockSEC:0001883022-26-000005:0
26,672 shares@ US$6.340.9% of flowClass A Common StockSEC:0001883022-26-000002:0
36,092 shares@ US$10.732.1% of flowClass A Common StockSEC:0001883022-25-000003:0
34,301 shares@ US$11.472.2% of flowClass A Common StockSEC:0001562180-25-005897:0
25,533 shares@ US$12.141.8% of flowClass A Common StockSEC:0001562180-25-004004:0
852,878 shares0Class A Common StockSEC:0001562180-25-003350:0
23,866 shares@ US$4.190.6% of flowClass A Common StockSEC:0001562180-24-001049:0
23,866 shares@ US$4.190.6% of flowClass A Common StockSEC:0001562180-23-000989:0
70,000 shares@ US$4.192.8% of flowClass A Common StockSEC:0001567619-22-005406:0
158,772 shares@ US$50.0074.9% of flowClass A Common StockSEC:0000899243-21-038472:0
380,000 shares0Class A Common StockSEC:0000899243-21-037513:0
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