Skates Spenser — SEC Form 4 filings
SEC reporting owner CIK 1882913. 8 Form 4 filings on record with FilingPulse; latest filed 2026-09-14.
Transaction summary — filings shown
Covers all 8 filings on record, filed 2025-08-06 to 2026-09-14. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 4 legs across 4 filings — 627,843 shares, $7,185,564 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 13.
- Largest priced transaction: sale of 400,000 shares @ $10.99 ($4,395,320) in Amplitude, Inc., filed 2025-11-13.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Amplitude, Inc. (AMPL) | CEO and President, Director, 10% owner | 8 | — | 4 legs · 627,843 sh · $7,185,564 | 13 |
Form 4 filings — Skates Spenser
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-14 | 4 | Amplitude, Inc. (AMPL) | Conversion (C): 185,000 @ $0 · Sale (S): 185,000 @ $12.30 · Conversion (C): 185,000 (derivative) @ $0 | EDGAR |
| 2026-08-18 | 4 | Amplitude, Inc. (AMPL) | Tax withholding (F): 52,369 @ $13.03 | EDGAR |
| 2026-05-19 | 4 | Amplitude, Inc. (AMPL) | Tax withholding (F): 39,562 @ $6.06 | EDGAR |
| 2026-04-22 | 4 | Amplitude, Inc. (AMPL) | Grant/award (A): 1,323,119 @ $0 | EDGAR |
| 2025-12-30 | 4 | Amplitude, Inc. (AMPL) | Conversion (C): 100 @ $0 · Sale (S): 100 @ $12 · Conversion (C): 100 (derivative) @ $0 | EDGAR |
| 2025-12-29 | 4 | Amplitude, Inc. (AMPL) | Conversion (C): 42,743 @ $0 · Sale (S): 42,743 @ $12.01 · Conversion (C): 42,743 (derivative) @ $0 | EDGAR |
| 2025-11-13 | 4 | Amplitude, Inc. (AMPL) | Conversion (C): 400,000 @ $0 · Sale (S): 400,000 @ $10.99 · Conversion (C): 400,000 (derivative) @ $0 | EDGAR |
| 2025-08-06 | 4 | Amplitude, Inc. (AMPL) | Gift (G): 1,010,000 (derivative) @ $0 · Gift (G): 1,010,000 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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