Chen Yun-Lung
Officer · AMBA
As of 2026-09-16, Chen Yun-Lung has 12 Form 4 transactions on record across 1 company — 8 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.
Reconstructed holdings
- Direct $3.8M
- Indirect $0
| AMBA | direct | 60,557 sh | $3.8M |
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 |
|---|---|---|---|---|---|---|---|
| 2026-07-09 | AMBA | Sale | 5,958 @ $78.66 | $469K | −9.0% of holding | 60,557 | Form 4 |
| 2026-06-12 | AMBA | Sale | 9,856 @ $67.06 | $661K | −12.9% of holding | 66,515 | Form 4 |
| 2025-09-10 | AMBA | Sale | 8,492 @ $84.42 | $717K | −12.1% of holding | 61,651 | Form 4 |
9 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-03-18 | AMBA | Award / grant | 2,849 | 76,371 | Form 4 |
| 2026-03-17 | AMBA | Option exercise | 4,651 | 0 | Form 4 |
| 2026-03-17 | AMBA | Option exercise | 4,651 | 73,522 | Form 4 |
| 2026-03-17 | AMBA | Option exercise | 4,651 | 73,522 | Form 4 |
| 2026-03-02 | AMBA | Award / grant | 7,220 | 68,871 | Form 4 |
| 2026-03-02 | AMBA | Award / grant | 7,220 | 7,220 | Form 4 |
| 2025-03-05 | AMBA | Award / grant | 2,249 | 70,143 | Form 4 |
| 2025-02-28 | AMBA | Award / grant | 5,868 | 67,894 | Form 4 |
| 2025-02-28 | AMBA | Award / grant | 5,868 | 5,868 | 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.