Insider · SEC Forms 3, 4, 5
CIK 1494730
All transactions
Every Form 4 row this person reported, newest first
Insider · SEC Forms 3, 4, 5
Every Form 4 row this person reported, newest first
Skates Spenser (CIK 1882913) reported 11 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-09-14). Recent activity: Buy AMPL (185,000 shares), Sell AMPL (185,000 shares), Sell AMPL (52,369 shares), Sell AMPL (39,562 shares), Buy AMPL (1.3M shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-14 | Amplitude, Inc. (AMPL) | CEO and President | Buy | 185,000 | $0 |
| 2026-09-14 | Amplitude, Inc. (AMPL) | CEO and President | Sell | 185,000 | $2.3M |
| 2026-08-18 | Amplitude, Inc. (AMPL) | CEO and President | Sell | 52,369 | $682,368 |
| 2026-05-19 | Amplitude, Inc. (AMPL) | CEO and President | Sell | 39,562 | $239,746 |
| 2026-04-22 | Amplitude, Inc. (AMPL) | CEO and President | Buy | 1.3M | $0 |
| 2025-12-30 | Amplitude, Inc. (AMPL) | Chief Executive Officer | Buy | 100 | $0 |
| 2025-12-30 | Amplitude, Inc. (AMPL) | Chief Executive Officer | Sell | 100 | $1,200 |
| 2025-12-29 | Amplitude, Inc. (AMPL) | Chief Executive Officer | Buy | 42,743 | $0 |
| 2025-12-29 | Amplitude, Inc. (AMPL) | Chief Executive Officer | Sell | 42,743 | $513,343 |
| 2025-11-13 | Amplitude, Inc. (AMPL) | Chief Executive Officer | Buy | 400,000 | $0 |
| 2025-11-13 | Amplitude, Inc. (AMPL) | Chief Executive Officer | Sell | 400,000 | $4.4M |
Source: SEC Form 4 filings · as of 2026-09-14