Amplitude, Inc. filings document the public reporting obligations of a Nasdaq-listed software company with Class A common stock registered under the ticker AMPL. Its 8-K reports furnish quarterly and annual financial results, including revenue, annual recurring revenue, remaining performance obligations, operating cash flow, free cash flow, and financial outlook commentary.
The filing record also includes proxy materials for annual stockholder meetings and governance matters, along with Form 8-K disclosures for executive transitions and compensatory arrangements. These documents describe Amplitude's registered securities, reporting status, board and stockholder voting processes, and material events affecting its SaaS analytics business.
Amplitude, Inc. (AMPL) is named in a Rule 144 notice covering the sale of 1,374 Class A shares, with an aggregate market value of $19,857.42. The shares are held in Anne L. Skates’s account; she is identified as the spouse of Spenser J. Skates, an officer and director of the company. The notice also lists a September 10, 2026 sale from Anne L. Skates’s account of 185,000 Class A shares for $2,275,219.06 in gross proceeds during the prior three months.
Amplitude, Inc. (AMPL) reported that CEO and President Spenser Skates, a director and over-10% owner, had spouse-held Class B Common Stock converted into Class A Common Stock and 185,000 Class A shares sold on September 10, 2026 at a weighted average of $12.3006 per share, all held indirectly through his spouse and effected under a Rule 10b5-1 trading plan. Following these transactions, his spouse continues to hold 382,157 Class B shares indirectly, and Skates holds 5,342,146 Class B shares directly, each share of Class B being convertible into one share of Class A.
Amplitude, Inc. (AMPL) is the issuer for a Rule 144 notice covering a proposed sale of up to 185,000 shares of Class A common stock. The shares have an estimated aggregate market value of $2,275,219.06. The securities were acquired on December 7, 2011 as Pre-IPO Shares from the issuer for cash. The notice states that the trades took place in the account of Anne L. Skates, spouse of officer Spenser Skates.
Amplitude, Inc. (AMPL) reported that Chief Commercial Officer Nathaniel Glenn Crook sold 300,000 shares of Class A Common Stock on September 4, 2026 at a weighted average price of $12.9925 per share in open-market transactions. The sales were effected under a Rule 10b5-1 trading plan adopted on June 2, 2026. Following these sales, he held 1,622,696 shares directly, including 1,241,362 restricted stock units.
Amplitude, Inc. (AMPL) received a Rule 144 notice indicating that officer Nathaniel Glenn Crook may sell up to 300,000 shares of Class A common stock through Fidelity Brokerage Services LLC on NASDAQ. The shares derive from multiple restricted stock vesting events granted as compensation by the issuer.
Amplitude, Inc. (AMPL) reported an insider equity-compensation event for Chief Technology Officer and director Curtis Liu. On August 17, 2026, 53,878 shares of Class A common stock were withheld at $13.03 per share to satisfy tax withholding obligations arising from RSUs that vested on August 15, 2026; this withholding does not represent an open-market sale. After this transaction, Liu directly held 950,316 shares of Class A common stock, including 774,628 RSUs.
Amplitude, Inc. (AMPL) disclosed that CEO, President and 10% owner Spenser Skates had 52,369 shares of Class A Common Stock withheld on August 17, 2026. These shares were withheld by the company solely to satisfy tax withholding obligations related to the net issuance of shares from vested restricted stock units and do not represent an open-market sale. Following this withholding, Skates holds 1,231,188 shares directly, including 1,102,599 RSUs.
Amplitude, Inc. (AMPL) reported that Chief Commercial Officer Nathaniel Glenn Crook had 109,368 shares of Class A Common Stock withheld on August 17, 2026 to satisfy tax withholding obligations related to RSU vesting. The company notes this was not an open-market sale. Following this withholding, Crook directly holds 1,922,696 shares of Class A Common Stock, which includes 1,241,362 RSUs.
Amplitude, Inc. (AMPL) reported that its Chief Financial Officer, Andrew Casey, had 72,814 shares of Class A Common Stock withheld on August 17, 2026. The shares were withheld by the company solely to satisfy tax withholding obligations related to the vesting of restricted stock units and are explicitly stated not to represent a sale by the reporting person. After this tax-withholding transaction, Casey directly holds 1,363,338 shares of Class A Common Stock, including 814,949 RSUs.
FMR LLC filed as a significant shareholder of Amplitude Inc., reporting beneficial ownership of 5,979,436.49 shares of Class A common stock, representing 5.8% of the class as of June 30, 2026. FMR reports sole voting power over 5,951,499 shares and sole dispositive power over the full 5,979,436.49 shares.
Abigail P. Johnson is reported with beneficial ownership of the same 5,979,436.49 shares, representing 5.8% of the class, with sole dispositive but no voting power. One or more other persons have rights to dividends or sale proceeds, including Select Software and IT Services Portfolio with 5,944,076 shares, or 5.7% of outstanding Class A shares as of June 30, 2026.