Ju Chi-Hong — SEC Form 4 filings
SEC reporting owner CIK 1882831. 25 Form 4 filings on record with FilingPulse; latest filed 2026-09-18.
Transaction summary — filings shown
Covers all 25 filings on record, filed 2024-03-04 to 2026-09-18. 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): 26 legs across 22 filings — 86,725 shares, $5,944,521 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 16.
- Largest priced transaction: sale of 10,000 shares @ $88.84 ($888,400) in AMBARELLA INC, filed 2026-07-02.
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 |
|---|---|---|---|---|---|
| AMBARELLA INC (AMBA) | Senior VP, Systems & GM | 25 | — | 26 legs · 86,725 sh · $5,944,521 | 16 |
Form 4 filings — Ju Chi-Hong
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-18 | 4 | AMBARELLA INC (AMBA) | Sale (S): 2,009 @ $64.83 | EDGAR |
| 2026-07-02 | 4 | AMBARELLA INC (AMBA) | Sale (S): 10,000 @ $88.84 | EDGAR |
| 2026-06-18 | 4 | AMBARELLA INC (AMBA) | Sale (S): 2,017 @ $67.87 | EDGAR |
| 2026-03-19 | 4 | AMBARELLA INC (AMBA) | Option exercise (M): 9,553 · Sale (S): 4,729 @ $52.77 · Grant/award (A): 5,930 @ $0 · Sale (S): 2,155 @ $54.14 · Option exercise (M): 9,553 (derivative) @ $0 | EDGAR |
| 2026-03-04 | 4 | AMBARELLA INC (AMBA) | Grant/award (A): 17,329 @ $0 · Grant/award (A): 17,329 (derivative) @ $0 | EDGAR |
| 2026-01-23 | 4/A | AMBARELLA INC (AMBA) | Sale (S): 7,945 @ $70.25 | EDGAR |
| 2026-01-07 | 4 | AMBARELLA INC (AMBA) | Sale (S): 7,728 @ $75.58 | EDGAR |
| 2025-12-31 | 4 | AMBARELLA INC (AMBA) | Sale (S): 3,765 @ $70.32 | EDGAR |
| 2025-12-19 | 4 | AMBARELLA INC (AMBA) | Sale (S): 1,342 @ $71.82 | EDGAR |
| 2025-10-15 | 4 | AMBARELLA INC (AMBA) | Sale (S): 5,057 @ $81.29 · Sale (S): 6,156 @ $80.96 | EDGAR |
| 2025-09-19 | 4 | AMBARELLA INC (AMBA) | Sale (S): 1,168 @ $79.43 | EDGAR |
| 2025-06-20 | 4 | AMBARELLA INC (AMBA) | Sale (S): 1,108 @ $52.26 | EDGAR |
| 2025-03-20 | 4 | AMBARELLA INC (AMBA) | Sale (S): 1,034 @ $55.02 | EDGAR |
| 2025-03-07 | 4 | AMBARELLA INC (AMBA) | Grant/award (A): 12,388 @ $0 · Grant/award (A): 4,773 @ $0 · Sale (S): 1,859 @ $55.11 · Grant/award (A): 12,388 (derivative) @ $0 | EDGAR |
| 2024-12-18 | 4 | AMBARELLA INC (AMBA) | Sale (S): 1,048 @ $75.41 | EDGAR |
| 2024-12-10 | 4 | AMBARELLA INC (AMBA) | Gift (G): 593 @ $0 · Sale (S): 2,118 @ $75.69 · Sale (S): 3,000 @ $75.72 | EDGAR |
| 2024-12-06 | 4 | AMBARELLA INC (AMBA) | Gift (G): 5,000 @ $0 · Gift (G): 5,000 @ $0 | EDGAR |
| 2024-09-19 | 4 | AMBARELLA INC (AMBA) | Sale (S): 1,050 @ $53.54 | EDGAR |
| 2024-06-27 | 4 | AMBARELLA INC (AMBA) | Sale (S): 6,000 @ $52.90 | EDGAR |
| 2024-06-24 | 4 | AMBARELLA INC (AMBA) | Option exercise (M): 8,900 @ $38.92 · Sale (S): 8,900 @ $55.53 · Option exercise (M): 8,900 (derivative) @ $0 | EDGAR |
| 2024-06-20 | 4 | AMBARELLA INC (AMBA) | Sale (S): 1,059 @ $55.48 | EDGAR |
| 2024-06-11 | 4 | AMBARELLA INC (AMBA) | Sale (S): 2,296 @ $56.79 · Sale (S): 1,895 @ $57.50 | EDGAR |
| 2024-03-20 | 4 | AMBARELLA INC (AMBA) | Sale (S): 778 @ $49.27 | EDGAR |
| 2024-03-11 | 4 | AMBARELLA INC (AMBA) | Grant/award (A): 1,224 @ $0 · Sale (S): 509 @ $57.16 | EDGAR |
| 2024-03-04 | 4 | AMBARELLA INC (AMBA) | Grant/award (A): 15,898 @ $0 · Grant/award (A): 15,898 (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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