Chan W Lee
CIK 1882825 · View on SEC EDGAR ↗
Insider
First SEC filing: Sept. 14, 2021 · Latest: June 18, 2026
On this page
Insider at
Insider transactions
0 buys (P)
5 sells (S)
Net:
$-1,079,946
+ 47 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
47 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 17, 2026 | AMBA | S | 2,951 | $67.87 | $200,284 | 157,098 Direct | -1.84% | Disposed | 7.7% (price as of 2026-08-21) |
| March 19, 2026 | AMBA | S | 3,641 | $54.14 | $197,124 | 160,049 Direct | -2.22% | Disposed | 35.0% (price as of 2026-08-21) |
| March 17, 2026 | AMBA | S | 6,729 | $52.77 | $355,089 | 156,370 Direct | -4.13% | Disposed | 38.5% (price as of 2026-08-21) |
| Dec. 17, 2025 | AMBA | S | 2,406 | $71.82 | $172,799 | 124,566 Direct | -1.89% | Disposed | 1.8% (price as of 2026-08-21) |
| Sept. 17, 2025 | AMBA | S | 1,947 | $79.43 | $154,650 | 126,972 Direct | -1.51% | Disposed | -8.0% (price as of 2026-08-21) |
| June 17, 2025 | AMBA | S | 1,601 | $52.26 | $83,668 | 128,696 Direct | -1.23% | Disposed | 39.9% (price as of 2026-08-21) |
| March 18, 2025 | AMBA | S | 1,468 | $55.02 | $80,769 | 130,297 Direct | -1.11% | Disposed | 32.9% (price as of 2026-08-21) |
| March 6, 2025 | AMBA | S | 2,108 | $55.11 | $116,172 | 131,531 Direct | -1.58% | Disposed | 32.7% (price as of 2026-08-21) |
| Jan. 16, 2025 | AMBA | S 10b5-1 | 1,000 | $77.21 | $77,210 | 109,918 Direct | -0.90% | Disposed | -5.3% (price as of 2026-08-21) |
| Jan. 15, 2025 | AMBA | S 10b5-1 | 1,000 | $75.90 | $75,900 | 110,918 Direct | -0.89% | Disposed | -3.7% (price as of 2026-08-21) |
| Jan. 14, 2025 | AMBA | S 10b5-1 | 1,000 | $75.68 | $75,680 | 111,918 Direct | -0.89% | Disposed | -3.4% (price as of 2026-08-21) |
| Jan. 13, 2025 | AMBA | S 10b5-1 | 1,000 | $73.50 | $73,500 | 112,918 Direct | -0.88% | Disposed | -0.5% (price as of 2026-08-21) |
| Jan. 10, 2025 | AMBA | S 10b5-1 | 1,000 | $74.12 | $74,120 | 113,918 Direct | -0.87% | Disposed | -1.4% (price as of 2026-08-21) |
| Jan. 8, 2025 | AMBA | S 10b5-1 | 1,000 | $73.48 | $73,480 | 114,918 Direct | -0.86% | Disposed | -0.5% (price as of 2026-08-21) |
| Jan. 7, 2025 | AMBA | S 10b5-1 | 1,000 | $78.73 | $78,730 | 115,918 Direct | -0.86% | Disposed | -7.1% (price as of 2026-08-21) |
| Jan. 6, 2025 | AMBA | S 10b5-1 | 1,000 | $79.15 | $79,150 | 116,918 Direct | -0.85% | Disposed | -7.6% (price as of 2026-08-21) |
| Jan. 3, 2025 | AMBA | S 10b5-1 | 1,000 | $75.06 | $75,060 | 117,918 Direct | -0.84% | Disposed | -2.6% (price as of 2026-08-21) |
| Jan. 2, 2025 | AMBA | S 10b5-1 | 1,000 | $73.32 | $73,320 | 118,918 Direct | -0.83% | Disposed | -0.3% (price as of 2026-08-21) |
| Dec. 16, 2024 | AMBA | S | 1,488 | $75.41 | $112,210 | 119,918 Direct | -1.23% | Disposed | -3.0% (price as of 2026-08-21) |
| Sept. 17, 2024 | AMBA | S | 1,490 | $53.54 | $79,775 | 121,406 Direct | -1.21% | Disposed | 36.6% (price as of 2026-08-21) |
| June 18, 2024 | AMBA | S | 1,504 | $55.48 | $83,442 | 122,642 Direct | -1.21% | Disposed | 31.8% (price as of 2026-08-21) |
| March 18, 2024 | AMBA | S | 1,075 | $49.27 | $52,965 | 124,146 Direct | -0.86% | Disposed | 48.4% (price as of 2026-08-21) |
| March 8, 2024 | AMBA | S | 642 | $57.16 | $36,697 | 125,003 Direct | -0.51% | Disposed | 27.9% (price as of 2026-08-21) |
| Dec. 19, 2023 | AMBA | S | 1,520 | $63.04 | $95,821 | 101,336 Direct | -1.48% | Disposed | 16.0% (price as of 2026-08-21) |
| Sept. 18, 2023 | AMBA | S | 1,484 | $57.30 | $85,033 | 102,856 Direct | -1.42% | Disposed | 27.6% (price as of 2026-08-21) |
| June 20, 2023 | AMBA | S | 1,492 | $84.80 | $126,522 | 104,177 Direct | -1.41% | Disposed | -13.8% (price as of 2026-08-21) |
| March 17, 2023 | AMBA | S | 9,430 | $76.85 | $724,696 | 80,437 Direct | -10.49% | Disposed | -4.9% (price as of 2026-08-21) |
| Dec. 16, 2022 | AMBA | S | 2,055 | $83.77 | $172,147 | 66,891 Direct | -2.98% | Disposed | -12.7% (price as of 2026-08-21) |
| Sept. 16, 2022 | AMBA | S | 2,072 | $63.25 | $131,054 | 64,897 Direct | -3.09% | Disposed | 15.6% (price as of 2026-08-21) |
| June 16, 2022 | AMBA | S | 2,184 | $66.25 | $144,690 | 62,778 Direct | -3.36% | Disposed | 10.4% (price as of 2026-08-21) |
| March 16, 2022 | AMBA | S | 31,450 | $91.20 | $2,868,240 | 60,915 Direct | -34.05% | Disposed | -19.8% (price as of 2026-08-21) |
| March 14, 2022 | AMBA | S | 1,595 | $84.42 | $134,650 | 27,499 Direct | -5.48% | Disposed | -13.4% (price as of 2026-08-21) |
| Dec. 16, 2021 | AMBA | S | 2,997 | $188.84 | $565,953 | 24,693 Direct | -10.82% | Disposed | -61.3% (price as of 2026-08-21) |
| Dec. 3, 2021 | AMBA | S | 2,808 | $192.69 | $541,074 | 22,247 Direct | -11.21% | Disposed | -62.1% (price as of 2026-08-21) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| March 17, 2026 | AMBA | Performance Stock Units | Ordinary Shares (13,678) | — | March 15, 2026 | 13,678 | Disposed |
| March 2, 2026 | AMBA | Performance Stock Units | Ordinary Shares (24,701) | — | March 15, 2029 | 24,701 | Acquired |
| Feb. 28, 2025 | AMBA | Performance Stock Units | Ordinary Shares (18,256) | — | March 15, 2028 | 18,256 | Acquired |
| Feb. 29, 2024 | AMBA | Performance Stock Units | Ordinary Shares (22,764) | — | — | 22,764 | Acquired |
| April 3, 2023 | AMBA | Performance Stock Units | Ordinary Shares (13,678) | — | March 15, 2026 | 13,678 | Acquired |
| March 15, 2023 | AMBA | Performance Stock Units | Ordinary Shares (26,850) | — | March 15, 2023 | 26,850 | Disposed |
| March 15, 2023 | AMBA | Restricted Stock Units | Ordinary Shares (2,238) | — | March 15, 2023 | 2,238 | Disposed |
| March 15, 2023 | AMBA | Restricted Stock Units | Ordinary Shares (734) | — | March 15, 2024 | 734 | Disposed |
| March 15, 2023 | AMBA | Restricted Stock Units | Ordinary Shares (1,077) | — | March 15, 2025 | 1,077 | Disposed |
| March 2, 2023 | AMBA | Restricted Stock Units | Ordinary Shares (13,678) | — | — | 13,678 | Acquired |
| Dec. 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (2,237) | — | March 15, 2023 | 2,237 | Disposed |
| Dec. 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (734) | — | March 15, 2024 | 734 | Disposed |
| Dec. 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (1,078) | — | March 15, 2025 | 1,078 | Disposed |
| Sept. 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (2,238) | — | March 15, 2023 | 2,238 | Disposed |
| Sept. 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (734) | — | March 15, 2024 | 734 | Disposed |
| Sept. 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (1,077) | — | March 15, 2025 | 1,077 | Disposed |
| June 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (2,237) | — | March 15, 2023 | 2,237 | Disposed |
| June 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (733) | — | March 15, 2024 | 733 | Disposed |
| June 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (1,077) | — | March 15, 2025 | 1,077 | Disposed |
| April 11, 2022 | AMBA | Performance Stock Units | Ordinary Shares (12,928) | — | March 15, 2025 | 12,928 | Acquired |
| April 11, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (12,928) | — | March 15, 2025 | 12,928 | Acquired |
| March 16, 2022 | AMBA | Performance Stock Units | Ordinary Shares (29,670) | — | March 15, 2022 | 29,670 | Disposed |
| March 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (2,473) | — | March 15, 2022 | 2,473 | Disposed |
| March 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (2,238) | — | March 15, 2023 | 2,238 | Disposed |
| March 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (734) | — | March 15, 2024 | 734 | Disposed |
| Dec. 16, 2021 | AMBA | Restricted Stock Units | Ordinary Shares (2,472) | — | March 15, 2022 | 2,472 | Disposed |
| Dec. 16, 2021 | AMBA | Restricted Stock Units | Ordinary Shares (2,237) | — | March 15, 2023 | 2,237 | Disposed |
| Dec. 16, 2021 | AMBA | Restricted Stock Units | Ordinary Shares (734) | — | March 15, 2024 | 734 | Disposed |
| Sept. 16, 2021 | AMBA | Restricted Stock Units | Ordinary Shares (2,473) | — | March 15, 2022 | 2,473 | Disposed |
| Sept. 16, 2021 | AMBA | Restricted Stock Units | Ordinary Shares (2,238) | — | March 15, 2023 | 2,238 | Disposed |
| Sept. 16, 2021 | AMBA | Restricted Stock Units | Ordinary Shares (734) | — | March 15, 2024 | 734 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 7 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Sept. 14, 2021 | AMBA | Ordinary Shares | 19,502 | Direct |
| Sept. 14, 2021 | AMBA | Performance Stock Units→ Ordinary Shares (29,670) | 29,670 | Direct |
| Sept. 14, 2021 | AMBA | Performance Stock Units→ Ordinary Shares (26,850) | 26,850 | Direct |
| Sept. 14, 2021 | AMBA | Performance Stock Units→ Ordinary Shares (8,805) | 8,805 | Direct |
| Sept. 14, 2021 | AMBA | Restricted Stock Units→ Ordinary Shares (7,418) | 7,418 | Direct |
| Sept. 14, 2021 | AMBA | Restricted Stock Units→ Ordinary Shares (15,663) | 15,663 | Direct |
| Sept. 14, 2021 | AMBA | Restricted Stock Units→ Ordinary Shares (8,072) | 8,072 | Direct |