Form 4 for AMBQ Ambiq Micro, Inc.
Accepted 2026-02-20 00:00:00 ET · period of report 2026-02-18 · accession 0001835160-26-000003 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DI | 2026-02-20 | 2026-02-18 | AMBQ | HSIEH Wen Hsuan | Dir | M - OptEx | $12.60 | +238.9K | 633.9K | +60% | +$3.01M |
| DI | 2026-02-20 | 2026-02-18 | AMBQ | HSIEH Wen Hsuan | Dir | M - OptEx | $0.00 | -238.9K | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-02-18 | M | A | 238,931 | $12.60 | 633,920 | I By: Matter Venture Partners Fund I, L.P. | — | — | (F1) The Reporting Person exercises sole voting and dispositive control over the shares held by Matter Venture Partners Fund I, L.P. |
| 2 | Derivative | Warrant (Right to Buy) | 2026-02-18 | M | D | 238,931 | $0.00 | 0 | I By: Matter Venture Partners Fund I, L.P. | $12.60 · — to 2034-06-01 | 238,931 Common Stock | (F1) The Reporting Person exercises sole voting and dispositive control over the shares held by Matter Venture Partners Fund I, L.P. (F2) The warrant is exercisable in whole or in part, on the earlier of (i) June 1, 2028, (ii) immediately prior to the completion of the Issuer's initial public offering or (iii) immediately prior to the consummation of an acquisition or asset transfer of the Issuer, until the warrant's expiration on June 1, 2034. |