A Form 144 notice of proposed sale was filed on November 4, 2026, by Spenser Skates on behalf of Anne L. Skates, spouse of Spenser J. Skates, an Officer and Director of Amplitude, Inc., covering 901 Class A shares of Amplitude with an aggregate market value of $15,734.05.

Key Highlights

  • Proposed sale: 901 Class A shares with an aggregate market value of $15,734.05, to be sold through Fidelity Brokerage Services LLC on or around November 4, 2026.
  • Seller relationship: The filing states the securities are in the account of Anne L. Skates, spouse of Spenser J. Skates, described as "an Officer and Director of the company."
  • Acquisition history: The 901 shares were acquired on December 7, 2011, as Pre-IPO Shares from the Issuer, with payment made in cash on the same date.
  • Shares outstanding: 101,261,624 Class A shares were listed as outstanding at the time of filing.
  • Prior three-month sales: Anne L. Skates sold a combined 384,935 Class A shares across seven transactions between September 10, 2026, and October 28, 2026, generating gross proceeds totaling $5,534,302.45.
  • Rule 10b5-1 plan: The filing indicates a plan adoption date of June 11, 2026, with the filer relying on Rule 10b5-1.
  • Exchange listed: The securities are listed on NASDAQ (NASDAQ:AMPL).

Amplitude Insider Household Files Form 144 for Class A Share Sale

According to the filing, Spenser Skates filed a Form 144 notice with the SEC on November 4, 2026, disclosing a proposed sale of 901 Class A shares of Amplitude, Inc. (NASDAQ:AMPL). The filing states that the securities to be sold are held in the account of Anne L. Skates, who is identified as the spouse of Spenser J. Skates, an Officer and Director of the company. The aggregate market value of the proposed sale is listed as $15,734.05, and the sale is to be executed through Fidelity Brokerage Services LLC, located at 900 Salem Street, Smithfield, RI 02917.

The filing discloses that the 901 shares subject to the proposed sale were originally acquired on December 7, 2011, as Pre-IPO Shares from the Issuer, with full cash payment made on the same date. The total Class A shares outstanding are reported as 101,261,624. The filing notes reliance on a Rule 10b5-1 trading plan adopted on June 11, 2026, and was signed by Joshua Schmitt as a duly authorized representative of Fidelity Brokerage Services LLC, acting as attorney-in-fact for Spenser J. Skates.

The filing also discloses seven separate sales of Amplitude Class A shares by Anne L. Skates during the three months preceding the notice. These transactions, dated between September 10, 2026, and October 28, 2026, ranged in size from 300 shares (gross proceeds of $5,239.00 on October 26, 2026) to 185,000 shares (gross proceeds of $2,275,219.06 on September 10, 2026). The combined amount sold across all seven prior transactions was 384,935 shares, with total gross proceeds of $5,534,302.45, as reported in the filing.

What Was Disclosed

Amplitude, Inc. received a Form 144 notice dated November 4, 2026, covering a proposed sale of 901 Class A shares valued at $15,734.05 by Anne L. Skates, spouse of company Officer and Director Spenser J. Skates, with the transaction to be executed through Fidelity Brokerage Services LLC under a Rule 10b5-1 plan.