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Ju Chi-Hong insider trades
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Ju Chi-Hong insider trades

Ju Chi-Hong has filed 47 Form 4s with the SEC that we hold, all for Ambarella INC (AMBA), as Senior VP, Systems & GM. Across all of them we count 0 purchases worth $0 and 45 sales worth $10.1M reported on Form 4. In the last 12 months: 0 purchases ($0) and 11 sales ($3.9M). The largest single trade was a sale of 14,598 shares of Ambarella INC worth $1.3M, dated 2022-03-16. Of 1 sale filed since we began reading the 10b5-1 checkbox, 0 (0%) were marked as made under a 10b5-1 trading plan. The first filing on our record is dated 2021-09-17 and the latest 2026-09-18.

Ambarella INC (AMBA)

Senior VP, Systems & GM · 47 filings · 45 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-12-03S, sale reported on Form 41,495$288.1K2021-12-07
2021-12-07S, sale reported on Form 4500$110.4K2022-01-05
2021-12-07S, sale reported on Form 4500$111.5K2022-01-05
2021-12-16S, sale reported on Form 41,595$301.3K2021-12-17
2021-12-27S, sale reported on Form 4402$84.4K2021-12-28
2021-12-30S, sale reported on Form 4536$110.5K2022-01-03
2022-03-14S, sale reported on Form 41,315$111.0K2022-03-14
2022-03-16S, sale reported on Form 414,598$1.3M2022-03-18
2022-06-16S, sale reported on Form 41,340$88.8K2022-06-17
2022-09-16S, sale reported on Form 41,272$80.5K2022-09-20
2022-12-16S, sale reported on Form 41,262$105.7K2022-12-20
2022-12-19S, sale reported on Form 4764$61.5K2022-12-20
2022-12-22S, sale reported on Form 42,000$162.3K2022-12-22
2023-03-17S, sale reported on Form 44,402$338.3K2023-03-17
2023-06-08S, sale reported on Form 44,165$344.1K2023-06-09
2023-06-20S, sale reported on Form 41,015$86.1K2023-06-20
2023-07-07S, sale reported on Form 44,251$347.8K2023-07-10
2023-09-18S, sale reported on Form 41,048$60.1K2023-09-20
2023-12-19S, sale reported on Form 41,074$67.7K2023-12-21
2024-03-08S, sale reported on Form 4509$29.1K2024-03-11
2024-03-18S, sale reported on Form 4778$38.3K2024-03-20
2024-06-07S, sale reported on Form 42,296$130.4K2024-06-11
2024-06-10S, sale reported on Form 41,895$109.0K2024-06-11
2024-06-18S, sale reported on Form 41,059$58.8K2024-06-20
2024-06-21S, sale reported on Form 48,900$494.2K2024-06-24
2024-06-26S, sale reported on Form 46,000$317.4K2024-06-27
2024-09-17S, sale reported on Form 41,050$56.2K2024-09-19
2024-12-09S, sale reported on Form 43,000$227.2K2024-12-10
2024-12-09S, sale reported on Form 42,118$160.3K2024-12-10
2024-12-16S, sale reported on Form 41,048$79.0K2024-12-18
2025-03-06S, sale reported on Form 41,859$102.4K2025-03-07
2025-03-18S, sale reported on Form 41,034$56.9K2025-03-20
2025-06-17S, sale reported on Form 41,108$57.9K2025-06-20
2025-09-17S, sale reported on Form 41,168$92.8K2025-09-19
2025-10-13S, sale reported on Form 45,057$411.1K2025-10-15
2025-10-14S, sale reported on Form 46,156$498.4K2025-10-15
2025-12-17S, sale reported on Form 41,342$96.4K2025-12-19
2025-12-30S, sale reported on Form 47,945$558.1K2026-01-23
2025-12-30S, sale reported on Form 43,765$264.8K2025-12-31
2026-01-05S, sale reported on Form 47,728$584.1K2026-01-07
2026-03-17S, sale reported on Form 44,729$249.5K2026-03-19
2026-03-19S, sale reported on Form 42,155$116.7K2026-03-19
2026-06-17S, sale reported on Form 42,017$136.9K2026-06-18
2026-07-01S, sale reported on Form 410,000$888.4K2026-07-02
2026-09-17S, sale reported on Form 42,009$130.2K2026-09-18
Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1882831) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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