greeksoup/ stock research
Stock research / United States / AMPL / Planned sales

Amplitude, Inc. planned insider sales

In the last twelve months insiders at Amplitude, Inc. filed 15 Form 144 notices of planned sales, 1.3 million shares worth $15.7 million at the time of filing, from 6 sellers. The latest, filed 28 October 2026: Skates Spenser (member of immediate family of any of the foregoing), 16,499 shares worth $288,473, planned for around 28 October 2026 through Fidelity Brokerage Services LLC.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
28 October 2026Skates SpenserMember of immediate family of any of the foregoing16,499$288,47328 October 20266,651 shares from 28 October 2026Fidelity Brokerage Services LLCPre-IPO SharesForm 144
26 October 2026Skates SpenserMember of immediate family of any of the foregoing300$5,23926 October 2026300 shares from 26 October 2026Fidelity Brokerage Services LLCPre-IPO SharesForm 144
23 October 2026Skates SpenserMember of immediate family of any of the foregoing107,136$1.9 million23 October 2026107,136 shares from 23 October 2026Fidelity Brokerage Services LLCPre-IPO SharesForm 144
2 October 2026Skates SpenserMember of immediate family of any of the foregoing70,087$1.0 million2 October 202673,626 shares from 1 October 2026Fidelity Brokerage Services LLCPre-IPO SharesForm 144
1 October 2026Skates SpenserMember of immediate family of any of the foregoing3,539$51,1391 October 20261,374 shares from 30 September 2026Fidelity Brokerage Services LLCPre-IPO SharesForm 144
30 September 2026Skates SpenserMember of immediate family of any of the foregoing1,374$19,85730 September 2026None on Form 4 yetFidelity Brokerage Services LLCPre-IPO SharesForm 144
10 September 2026Skates SpenserMember of immediate family of any of the foregoing185,000$2.3 million10 September 2026185,000 shares from 10 September 2026Fidelity Brokerage Services LLCPre-IPO SharesForm 144
4 September 2026Crook Nathaniel GlennOfficer300,000$3.9 million4 September 2026300,000 shares from 4 September 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
12 June 2026Catherine Jen WongOfficer7,453$51,27712 June 20267,453 shares from 12 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
1 June 2026Curtis LiuDirector, Officer, 10% Stockholder22,201$173,6121 June 202622,201 shares from 1 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
5 March 2026Curtis LiuDirector, Officer, 10% Stockholder80,848$624,1475 March 202680,848 shares from 5 March 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
29 December 2025Anne Lee SkatesDirector, Officer, 10% Stockholder75,000$870,75024 December 2025No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock AwardsForm 144
15 December 2025Erica SchultzDirector10,000$112,50015 December 202510,000 shares from 15 December 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
17 November 2025Erica SchultzDirector10,000$107,30017 November 202510,000 shares from 17 November 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
12 November 2025Anne Lee SkatesDirector, Officer, 10% Stockholder400,000$4.3 million11 November 2025No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock AwardsForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?