Tzuo Tien
SEC insider (Form 3/4/5 filer). CIK 0001735409. Director at Amplitude, Inc. (AMPL) and 1 other issuer. 24 reported Form 4/5 transactions since Sep 2024; latest on Oct 5, 2026. Located in SAN FRANCISCO, CA.
Companies Tzuo Tien has filed insider reports for
- Amplitude, Inc. (AMPL): Director
- ZUORA INC (ZUO): Director, Officer, 10% Owner, Chairman and CEO
Tzuo Tien
CIK: 0001735409
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (24 total)
- Oct 5, 2026AMPL
Amplitude, Inc.
AwardDirect818 shares- - Jul 5, 2026AMPL
Amplitude, Inc.
AwardDirect1.5K shares- - Apr 5, 2026AMPL
Amplitude, Inc.
AwardDirect1.5K shares- - Jan 5, 2026AMPL
Amplitude, Inc.
AwardDirect999 shares- - Oct 5, 2025AMPL
Amplitude, Inc.
AwardDirect977 shares- - Jul 5, 2025AMPL
Amplitude, Inc.
AwardDirect894 shares- - Apr 5, 2025AMPL
Amplitude, Inc.
AwardDirect398 shares- - Feb 22, 2025AMPL
Amplitude, Inc.
AwardDirect44.5K shares- - Feb 14, 2025ZUO
ZUORA INC
DispositionDirect110.1K shares at avg. $10.00$1.1M - Feb 3, 2025ZUO
ZUORA INC
AwardDirectRestricted Stock Units (RSU)(Class A)
600K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 5, 2026 |  AMPL Amplitude, Inc. | Award | 818 | - | $0 | Direct |
| Jul 5, 2026 | AMPL Amplitude, Inc. | Award | 1,521 | - | $0 | Direct |
| Apr 5, 2026 | AMPL Amplitude, Inc. | Award | 1,538 | - | $0 | Direct |
| Jan 5, 2026 | AMPL Amplitude, Inc. | Award | 999 | - | $0 | Direct |
| Oct 5, 2025 | AMPL Amplitude, Inc. | Award | 977 | - | - | Direct |
| Jul 5, 2025 | AMPL Amplitude, Inc. | Award | 894 | - | - | Direct |
| Apr 5, 2025 | AMPL Amplitude, Inc. | Award | 398 | - | - | Direct |
| Feb 22, 2025 | AMPL Amplitude, Inc. | Award | 44,462 | - | - | Direct |
| Feb 14, 2025 |  ZUO ZUORA INC | Disposition | 110,104 | $10.00 | $1,101,040 | Direct |
| Feb 3, 2025 | ZUO ZUORA INC | Award Restricted Stock Units (RSU)(Class A) | 600,000 | - | - | Direct |
1-10 of 24 transactions