Tien Tzuo

Companies

• Amplitude, Inc.Board member Feb 25, 2025 to now¹
• ZuoraChief executive officer Jul 2, 2019 to Feb 14, 2025²
• ZuoraChair Jul 2, 2019 to Feb 14, 2025²
• VonageBoard member Jul 20, 2020 to Jul 21, 2022³
• ZuoraBoard member Apr 11, 2018 to Feb 14, 2019⁴
• ZuoraOfficer Apr 11, 2018 to Feb 14, 2019⁴

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• AAmplitude, Inc. AMPL101,601 shares⁵$1.5M at $14.75Jul 5, 2026
• Vonage0 shares⁶Jul 21, 2022
• Zuora ZUO0 shares⁷Feb 14, 2025

As of each latest filing. The line shows shares held over time.

Recent filings

• Jul 5, 2026Granted 1,521 shares of Amplitude, Inc.⁵
• Apr 5, 2026Granted 1,538 shares of Amplitude, Inc.⁸
• Jan 5, 2026Granted 999 shares of Amplitude, Inc.⁹
• Oct 5, 2025Granted 977 shares of Amplitude, Inc.¹⁰
• Jul 5, 2025Granted 894 shares of Amplitude, Inc.¹¹
• Apr 5, 2025Granted 398 shares of Amplitude, Inc.¹²
• Feb 22, 2025Granted 44,462 shares of Amplitude, Inc.¹³
• Feb 14, 2025Returned to company 110,104 shares at $10.00 of Zuora⁷
• Jan 10, 2025Sold 49,041 shares at $9.95 of Zuora¹⁴
• Jan 2, 2025Sold 48,569 shares at $9.93 of Zuora¹⁵
• Dec 31, 2024Exercised options 25,000 shares of Zuora¹⁴
• Dec 31, 2024Exercised options 25,000 shares of Zuora¹⁵
• Dec 31, 2024Exercised options 58,333 shares of Zuora¹⁴
• Dec 31, 2024Exercised options 58,333 shares of Zuora¹⁵
• Dec 31, 2024Exercised options 12,500 shares of Zuora¹⁴
• Dec 31, 2024Exercised options 12,500 shares of Zuora¹⁵
• Oct 3, 2024Sold 63,873 shares at $8.34 of Zuora¹⁶
• Sep 30, 2024Exercised options 50,000 shares of Zuora¹⁷
• Sep 30, 2024Exercised options 58,333 shares of Zuora¹⁷
• Sep 30, 2024Exercised options 12,500 shares of Zuora¹⁷
• Jul 16, 2024Sold 13,353 shares at $9.12 of Zuora¹⁸
• Jul 16, 2024Exercised options 13,353 shares of Zuora¹⁸
• Jul 15, 2024Sold 81,731 shares at $9.05 of Zuora¹⁹
• Jul 15, 2024Exercised options 81,731 shares of Zuora¹⁹
• Jul 12, 2024Sold 11,200 shares at $9.00 of Zuora¹⁹