A Form 144 notice of proposed sale was filed on October 26, 2026, by Spenser Skates on behalf of Anne L. Skates, spouse of Spenser Skates, an officer and director of Amplitude, Inc., disclosing a planned sale of 300 Class A shares with an aggregate market value of $5,239.00.

Key Highlights

  • Proposed sale: 300 Class A shares of Amplitude, Inc. with an aggregate market value of $5,239.00, to be sold on approximately October 26, 2026, through Fidelity Brokerage Services LLC on NASDAQ.
  • Seller relationship: According to the filing, the securities are held in the account of Anne L. Skates, who is described as the spouse of Spenser Skates, "an Officer and Director of the company."
  • Original acquisition: The 300 shares were acquired on December 7, 2011, as pre-IPO shares from the issuer, with cash payment made on the same date.
  • Rule 10b5-1 plan: The filing indicates a trading plan was adopted or instruction given on June 11, 2026.
  • Prior three-month sales: Sales listed under Anne L. Skates in the preceding three months totaled 367,136 Class A shares across five transactions, with gross proceeds of approximately $5,240,590.70 in aggregate.
  • Shares outstanding: The filing states 101,261,624 Class A shares were outstanding at the time of the notice.

Anne L. Skates Proposes 300-Share Sale of Amplitude Class A Stock

The Form 144 notice, filed October 26, 2026, covers a proposed sale of 300 Class A shares of Amplitude, Inc. (NASDAQ:AMPL) through Fidelity Brokerage Services LLC, located at 900 Salem Street, Smithfield, RI 02917. The aggregate market value of the proposed sale is listed as $5,239.00. The filing identifies Spenser Skates as the filer, with the securities to be sold for the account of Anne L. Skates. The filing states: "Today's sale and the securities sold in the past 3 months took place in the account of Anne L. Skates, who is the spouse of Spenser Skates, an Officer and Director of the company."

The 300 shares subject to this notice were originally acquired on December 7, 2011, as pre-IPO shares directly from the issuer, with cash payment also recorded on December 7, 2011. The filing notes that the filer is relying on Rule 10b5-1, with a plan adoption or instruction date of June 11, 2026. Amplitude, Inc. is headquartered at 201 Third Street, Suite 200, San Francisco, California 94103, and carries SEC File Number 001-40817.

The filing also discloses five sales by Anne L. Skates during the three months preceding this notice: 185,000 shares on September 10, 2026 (gross proceeds $2,275,219.06); 1,374 shares on September 30, 2026 (gross proceeds $19,857.42); 3,539 shares on October 1, 2026 (gross proceeds $51,138.55); 70,087 shares on October 2, 2026 (gross proceeds $1,017,553.05); and 107,136 shares on October 23, 2026 (gross proceeds $1,876,822.62). All prior sales are attributed to Anne L. Skates at 201 Third Street, Suite 200, San Francisco, CA 94103.

What Was Disclosed

A Form 144 was filed for Spenser Skates disclosing a proposed sale of 300 Amplitude, Inc. Class A shares, valued at $5,239.00, to be executed through Fidelity Brokerage Services LLC on NASDAQ on approximately October 26, 2026, under a Rule 10b5-1 plan adopted June 11, 2026.