Skates Spenser insider trades
Skates Spenser has filed 15 Form 4s with the SEC that we hold, all for Amplitude, Inc. (AMPL), as CEO and President, Director, 10% owner. Across all of them we count 0 purchases worth $0 and 10 sales worth $38.4M reported on Form 4. In the last 12 months: 0 purchases ($0) and 7 sales ($8.3M). The largest single trade was a sale of 550,000 shares of Amplitude, Inc. worth $27.5M, dated 2021-09-28. Of 4 sales filed since we began reading the 10b5-1 checkbox, 4 (100%) were marked as made under a 10b5-1 trading plan. The first filing on our record is dated 2021-09-23 and the latest 2026-10-06.
Amplitude, Inc. (AMPL)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2021-09-28 | S, sale reported on Form 4 | 25,000 | $1.3M | 2021-09-30 |
| 2021-09-28 | S, sale reported on Form 4 | 550,000 | $27.5M | 2021-09-30 |
| 2021-10-01 | S, sale reported on Form 4 | 25,000 | $1.4M | 2021-10-05 |
| 2025-11-11 | S, sale reported on Form 4 | 400,000 | $4.4M | 2025-11-13 |
| 2025-12-24 | S, sale reported on Form 4 | 42,743 | $513.3K | 2025-12-29 |
| 2025-12-26 | S, sale reported on Form 4 | 100 | $1.2K | 2025-12-30 |
| 2026-09-10 | S, sale reported on Form 4 | 185,000 | $2.3M | 2026-09-14 |
| 2026-09-30 | S, sale reported on Form 4 | 1,374 | $19.9K | 2026-10-02 |
| 2026-10-01 | S, sale reported on Form 4 | 3,539 | $51.1K | 2026-10-02 |
| 2026-10-02 | S, sale reported on Form 4 | 70,087 | $1.0M | 2026-10-06 |
Counted from the Form 4 filings this reporting owner (SEC CIK 1882913) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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