Form 4 for AMBA AMBARELLA INC
Accepted 2026-03-19 00:00:00 ET · period of report 2026-03-17 · accession 0001280263-26-000027 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-03-19 | 2026-03-17 | AMBA | Wang Feng-Ming | CEO, Dir | M - OptEx | — | +27.6K | 849.9K | +3% | — |
| DM | 2026-03-19 | 2026-03-17+ | AMBA | Wang Feng-Ming | CEO, Dir | S - Sale+OE | $53.18 | -27.1K | 838.6K | -3% | -$1.44M |
| D | 2026-03-19 | 2026-03-18 | AMBA | Wang Feng-Ming | CEO, Dir | A - Grant | $0.00 | +15.7K | 846.6K | +2% | $0 |
| D | 2026-03-19 | 2026-03-17 | AMBA | Wang Feng-Ming | CEO, Dir | M - OptEx | $0.00 | -27.6K | 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 | Ordinary Shares | 2026-03-17 | M | A | 27,598 | — | 849,934 | D | — | — | (F1) Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. (F2) Includes 154 shares acquired under the Company's employee stock purchase plan on March 16, 2026. |
| 2 | Common | Ordinary Shares | 2026-03-17 | S | D | 18,976 | $52.77 | 830,958 | D | — | — | (F3) Shares sold to pay tax obligations resulting from the vesting of restricted stock units. |
| 3 | Common | Ordinary Shares | 2026-03-18 | A | A | 15,686 | $0.00 | 846,644 | D | — | — | (F4) Represents an award of fully-vested restricted stock units (RSUs) issued to reporting person as payment of reporting person's annual bonus under the company's previously established Fiscal Year 2026 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share. |
| 4 | Common | Ordinary Shares | 2026-03-19 | S | D | 8,083 | $54.14 | 838,561 | D | — | — | (F3) Shares sold to pay tax obligations resulting from the vesting of restricted stock units. |
| 5 | Derivative | Performance Stock Units | 2026-03-17 | M | D | 27,598 | $0.00 | 0 | D | — · — to 2026-03-15 | 27,598 Ordinary Shares | (F1) Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. (F5) On April 3, 2023, reporting person was granted a performance-based RSU award covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, the award would vest in full on March 15, 2026. In addition, the number of shares subject to the award could be decreased by up to 100% or increased by up to 150% of the Target RSU Number, based on attainment of specified levels of the Company's total stockholder return and revenue growth over the period of February 1, 2023 through January 31, 2026 (the "TSR Period"). As a result of the Company's performance over the TSR Period, the number of shares that vested was 100% of the Target RSU Number. |