Welcome to our dedicated page for Amplitude SEC filings (Ticker: AMPL), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
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.
Tzuo Tien reported acquisition or exercise transactions in this Form 4 filing.
Amplitude, Inc. director Tzuo Tien reported an equity compensation grant of 1,538 shares of Class A Common Stock in the form of restricted stock units. The RSUs were granted under the company’s Non-Employee Director Compensation Program in lieu of cash retainer fees and carry no purchase price.
Each RSU represents one share of Class A Common Stock, with issuance of the underlying shares deferred under the program’s terms. Following this award, Tzuo Tien directly holds 100,080 Class A shares, including 49,268 RSUs.
Amplitude, Inc. Schedule 13G shows Wellington Management entities report 11,154,556 shares, representing 10.71% of Amplitude common stock as of 03/31/2026. The filing attributes shared voting power of 6,578,413 and shared dispositive power of 11,154,556 across related Wellington entities.
Amplitude, Inc. — Wellington Management Group LLP and affiliated entities report beneficial ownership of 11,154,556 shares of Amplitude common stock, representing 10.71% of the class. The filing attributes shared voting power of 6,578,413 shares and shared dispositive power across affiliated filers as shown. The Schedule 13G lists the filing entities and describes that the shares are owned of record by clients of Wellington investment advisers; no single client is identified as holding >5%.
Amplitude Inc: The Vanguard Group filed Amendment No. 4 to a Schedule 13G/A reporting 0% beneficial ownership of Amplitude common stock following an internal realignment effective January 12, 2026. The filing states certain Vanguard subsidiaries will report holdings separately in reliance on SEC Release No. 34-39538.
The filing is signed by Ashley Grim on 03/26/2026 and lists zero shares and zero voting or dispositive power across all categories.
Amplitude, Inc. filed an initial ownership report showing that Chief Commercial Officer Nathaniel Glenn Crook directly holds 877,545 shares of the company’s Class A Common Stock. This total includes 447,890 restricted stock units, which represent share-based compensation that will generally settle in stock over time.
Amplitude, Inc. director and Chief Technology Officer Curtis Liu reported an open-market sale of 33,201 shares of Class A Common Stock at a weighted average price of $8.007 per share on March 6, 2026. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan adopted on November 26, 2025, indicating it was scheduled in advance rather than timed discretionarily. After this sale, Liu directly held 603,756 shares, which the disclosure notes includes 568,585 restricted stock units. This filing shows a planned sale representing only a portion of his overall equity position while he continues to retain a substantial stake in the company.
Amplitude, Inc. director and Chief Technology Officer Curtis Liu sold 30,061 shares of Class A common stock in an open-market transaction at a weighted average price of $8.0017 per share. The sale was effected under a 10b5-1 trading plan adopted by the reporting person. After this transaction, Liu directly holds 636,957 shares, which include 568,585 restricted stock units.
Amplitude, Inc. announced that President Thomas Hansen will leave his role effective March 31, 2026. He will remain with the company in an advisory capacity through April 1, 2027 to help ensure continuity and a smooth transition, and the company states his departure is not due to any dispute or disagreement.
Nathaniel Crook, currently Chief Revenue Officer, will become Amplitude’s first Chief Commercial Officer, taking on many of Hansen’s responsibilities. At the same time, Amplitude reaffirmed its previously issued financial outlook for the first quarter and full year 2026 as described in its February 18, 2026 earnings release, signaling no change to its current guidance alongside this leadership change.
Amplitude, Inc. files its annual report outlining 2025 performance and strategy for its AI Analytics Platform. Revenue reached $343.2 million, up from $299.3 million in 2024, but the company remained unprofitable with a net loss of $88.5 million and an accumulated deficit of $546.4 million.
Amplitude positions itself as a leader in AI-driven product analytics, unifying analytics, experimentation, activation, session replay, and new AI offerings such as AI Agents, MCP, AI Visibility, AI Feedback, and Automated Insights. As of December 31, 2025, it had 4,797 paying customers, including 27 of the Fortune 100, and reports dollar-based net retention of 104%.
The company highlights a land‑and‑expand, subscription-based model with 98% of revenue from subscriptions, growing enterprise adoption, and increased use of AI technologies, while also flagging numerous risks around competition, ongoing losses, data privacy, and rapid industry and AI regulatory change.