Wang Feng-Ming
Director · Officer · AMBA
As of 2026-09-16, Wang Feng-Ming has 31 Form 4 transactions on record across 1 company — 23 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in June in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $48.6M
- Indirect $0
| AMBA | direct | 773,607 sh | $48.6M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-07-01 | AMBA | Sale | 16,250 @ $90.08 | $1.5M | −2.1% of holding | 773,607 | Form 4 |
| 2026-06-17 | AMBA | Sale | 6,204 @ $67.87 | $421K | −0.8% of holding | 799,857 | Form 4 |
| 2026-05-26 | AMBA | Sale | 17,285 @ $90.38 | $1.6M | −2.1% of holding | 821,276 | Form 4 |
| 2026-05-26 | AMBA | Sale | 9,150 @ $92.05 | $842K | −1.1% of holding | 806,061 | Form 4 |
| 2026-05-26 | AMBA | Sale | 6,065 @ $91.23 | $553K | −0.7% of holding | 815,211 | Form 4 |
| 2026-03-19 | AMBA | Sale | 8,083 @ $54.14 | $438K | −1.0% of holding | 838,561 | Form 4 |
| 2026-03-17 | AMBA | Sale | 18,976 @ $52.77 | $1.0M | −2.2% of holding | 830,958 | Form 4 |
| 2026-03-02 | AMBA | Sale | 32,460 @ $60.91 | $2.0M | −4.0% of holding | 781,019 | Form 4 |
| 2026-03-02 | AMBA | Sale | 12,040 @ $61.42 | $740K | −1.5% of holding | 768,979 | Form 4 |
| 2026-03-02 | AMBA | Sale | 2,600 @ $59.53 | $155K | −0.3% of holding | 813,479 | Form 4 |
| 2026-03-02 | AMBA | Sale | 1,900 @ $58.77 | $112K | −0.2% of holding | 816,079 | Form 4 |
| 2026-03-02 | AMBA | Sale | 1,000 @ $56.83 | $57K | −0.1% of holding | 817,979 | Form 4 |
| 2025-12-17 | AMBA | Sale | 4,950 @ $71.82 | $356K | −0.6% of holding | 783,979 | Form 4 |
| 2025-09-17 | AMBA | Sale | 4,928 @ $79.43 | $391K | −0.6% of holding | 788,929 | Form 4 |
| 2025-06-17 | AMBA | Sale | 4,677 @ $52.26 | $244K | −0.6% of holding | 793,634 | Form 4 |
| 2025-03-18 | AMBA | Sale | 3,194 @ $55.02 | $176K | −0.4% of holding | 798,311 | Form 4 |
| 2025-03-06 | AMBA | Sale | 4,104 @ $55.11 | $226K | −0.5% of holding | 801,271 | Form 4 |
| 2024-12-16 | AMBA | Sale | 4,296 @ $75.41 | $324K | −0.6% of holding | 755,231 | Form 4 |
13 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-17 | AMBA | Gift | 10,000 | 789,857 | Form 4 |
| 2026-03-18 | AMBA | Award / grant | 15,686 | 846,644 | Form 4 |
| 2026-03-17 | AMBA | Option exercise | 27,598 | 0 | Form 4 |
| 2026-03-17 | AMBA | Option exercise | 27,598 | 849,934 | Form 4 |
| 2026-03-17 | AMBA | Option exercise | 27,598 | 849,934 | Form 4 |
| 2026-03-02 | AMBA | Option exercise | 50,000 | 818,979 | Form 4 |
| 2026-03-02 | AMBA | Award / grant | 53,203 | 53,203 | Form 4 |
| 2026-03-02 | AMBA | Award / grant | 53,203 | 822,182 | Form 4 |
| 2026-03-02 | AMBA | Option exercise | 50,000 | 0 | Form 4 |
| 2025-12-19 | AMBA | Gift | 15,000 | 768,979 | Form 4 |
| 2025-03-05 | AMBA | Award / grant | 11,024 | 805,375 | Form 4 |
| 2025-02-28 | AMBA | Award / grant | 39,120 | 794,351 | Form 4 |
| 2025-02-28 | AMBA | Award / grant | 39,120 | 39,120 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.