SEC CIK 1602676
Chen Yun-Lung
Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| AMBAview stock → | 60,557 | 2026-07-09 |
Position History — AMBA
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — AMBA
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2026-07-09 | Open-market sale | 5,958 | $78.66 | 60,557 |
| 2026-06-12 | Open-market sale | 9,856 | $67.06 | 66,515 |
| 2026-03-18 | Grant / award | 2,849 | $0.00 | 76,371 |
| 2026-03-17 | Option exercise (derivative) | 4,651 | $0.00 | 0 |
| 2026-03-17 | Option exercise | 4,651 | — | 73,522 |
| 2026-03-02 | Grant / award (derivative) | 7,220 | $0.00 | 7,220 |
| 2026-03-02 | Grant / award | 7,220 | $0.00 | 68,871 |
| 2025-09-10 | Open-market sale | 8,492 | $84.42 | 61,651 |
| 2025-03-05 | Grant / award | 2,249 | $0.00 | 70,143 |
| 2025-02-28 | Grant / award (derivative) | 5,868 | $0.00 | 5,868 |
| 2025-02-28 | Grant / award | 5,868 | $0.00 | 67,894 |
| 2024-09-03 | Option exercise (derivative) | 5,963 | $0.00 | 0 |
| 2024-09-03 | Option exercise | 5,963 | $38.92 | 67,989 |
| 2024-09-03 | Open-market sale | 5,963 | $57.56 | 62,026 |
| 2024-03-07 | Grant / award | 726 | $0.00 | 62,026 |
| 2024-02-29 | Grant / award (derivative) | 7,740 | $0.00 | 7,740 |
| 2024-02-29 | Grant / award | 7,740 | $0.00 | 61,300 |
| 2023-06-15 | Grant / award | 8,859 | $0.00 | 53,560 |
| 2023-06-05 | Open-market sale | 8,984 | $76.80 | 44,701 |
| 2023-04-03 | Grant / award (derivative) | 4,651 | $0.00 | 4,651 |
| 2023-03-15 | Option exercise (derivative) | 8,538 | $0.00 | 0 |
| 2023-03-15 | Option exercise (derivative) | 712 | $0.00 | 0 |
| 2023-03-15 | Option exercise (derivative) | 380 | $0.00 | 3,034 |
| 2023-03-15 | Option exercise (derivative) | 294 | $0.00 | 1,174 |
| 2023-03-15 | Option exercise | 7,344 | — | 53,685 |
| 2023-03-08 | Grant / award | 903 | $0.00 | 46,341 |
| 2023-03-02 | Grant / award (derivative) | 4,651 | $0.00 | 4,651 |
| 2022-12-16 | Option exercise (derivative) | 379 | $0.00 | 3,414 |
| 2022-12-16 | Option exercise (derivative) | 293 | $0.00 | 1,468 |
| 2022-12-16 | Option exercise (derivative) | 711 | $0.00 | 712 |
| 2022-12-16 | Option exercise | 1,383 | — | 45,438 |
| 2022-09-16 | Option exercise (derivative) | 379 | $0.00 | 3,793 |
| 2022-09-16 | Option exercise (derivative) | 712 | $0.00 | 1,423 |
| 2022-09-16 | Option exercise (derivative) | 294 | $0.00 | 1,761 |
| 2022-09-16 | Option exercise | 1,385 | — | 44,055 |
| 2022-06-16 | Option exercise (derivative) | 379 | $0.00 | 4,172 |
| 2022-06-16 | Option exercise (derivative) | 711 | $0.00 | 2,135 |
| 2022-06-16 | Option exercise (derivative) | 293 | $0.00 | 2,055 |
| 2022-06-16 | Option exercise | 1,383 | — | 42,670 |
| 2022-04-11 | Grant / award (derivative) | 4,551 | $0.00 | 4,551 |
| 2022-04-11 | Grant / award (derivative) | 4,551 | $0.00 | 4,551 |
| 2022-03-29 | Open-market sale | 8,000 | $104.22 | 41,287 |
| 2022-03-16 | Option exercise (derivative) | 8,492 | $0.00 | 0 |
| 2022-03-16 | Option exercise (derivative) | 712 | $0.00 | 2,846 |
| 2022-03-16 | Option exercise (derivative) | 708 | $0.00 | 0 |
| 2022-03-16 | Option exercise (derivative) | 294 | $0.00 | 2,348 |
| 2022-03-16 | Option exercise | 18,698 | — | 49,287 |
| 2022-03-08 | Grant / award | 1,975 | $0.00 | 30,589 |
| 2022-03-03 | Option exercise (derivative) | 5,241 | $0.00 | 0 |
| 2022-03-03 | Option exercise | 5,241 | $9.99 | 47,855 |
| 2022-03-03 | Open-market sale | 5,241 | $96.31 | 42,614 |
| 2022-03-03 | Open-market sale | 14,000 | $97.14 | 28,614 |
| 2021-12-16 | Option exercise (derivative) | 708 | $0.00 | 708 |
| 2021-12-16 | Option exercise (derivative) | 711 | $0.00 | 3,558 |
| 2021-12-16 | Option exercise (derivative) | 293 | $0.00 | 2,642 |
| 2021-12-16 | Option exercise | 1,712 | — | 42,614 |
| 2021-12-03 | Option exercise | 1,713 | — | 52,902 |
| 2021-12-03 | Open-market sale | 1,500 | $199.04 | 40,902 |
| 2021-12-03 | Open-market sale | 10,500 | $198.22 | 42,402 |
| 2021-09-16 | Option exercise (derivative) | 707 | $0.00 | 1,416 |
| 2021-09-16 | Option exercise (derivative) | 712 | $0.00 | 4,269 |
| 2021-09-16 | Option exercise (derivative) | 294 | $0.00 | 2,935 |
| 2021-06-28 | Open-market sale | 5,951 | $104.09 | 51,189 |
| 2021-06-16 | Option exercise (derivative) | 1,279 | $0.00 | 0 |
| 2021-06-16 | Option exercise (derivative) | 708 | $0.00 | 2,123 |
| 2021-06-16 | Option exercise (derivative) | 711 | $0.00 | 4,981 |
| 2021-06-16 | Option exercise (derivative) | 293 | $0.00 | 3,229 |
| 2021-06-16 | Option exercise | 2,991 | — | 57,140 |
| 2021-03-16 | Option exercise (derivative) | 13,148 | $0.00 | 0 |
| 2021-03-16 | Option exercise (derivative) | 708 | $0.00 | 2,831 |
| 2021-03-16 | Option exercise (derivative) | 1,278 | $0.00 | 1,279 |
| 2021-03-16 | Option exercise (derivative) | 712 | $0.00 | 5,692 |
| 2021-03-16 | Option exercise | 14,203 | — | 54,149 |
| 2021-03-12 | Option exercise (derivative) | 5,927 | $0.00 | 0 |
| 2021-03-12 | Option exercise | 8,289 | $8.82 | 48,235 |
| 2021-03-12 | Open-market sale | 2,837 | $113.13 | 39,946 |
| 2021-03-12 | Open-market sale | 5,452 | $111.60 | 42,783 |
| 2021-03-09 | Grant / award | 875 | $0.00 | 39,946 |
| 2021-03-04 | Grant / award (derivative) | 3,522 | $0.00 | 3,522 |
| 2021-03-04 | Grant / award (derivative) | 3,522 | $0.00 | 3,522 |
| 2020-12-16 | Option exercise (derivative) | 1,278 | $0.00 | 2,557 |
| 2020-12-16 | Option exercise (derivative) | 707 | $0.00 | 3,539 |
| 2020-12-16 | Option exercise (derivative) | 711 | $0.00 | 6,404 |
| 2020-12-16 | Option exercise | 2,696 | — | 39,071 |
| 2020-12-09 | Open-market sale | 6,027 | $89.16 | 36,375 |
| 2020-09-16 | Option exercise (derivative) | 1,279 | $0.00 | 3,835 |
| 2020-09-16 | Option exercise (derivative) | 712 | $0.00 | 7,115 |
| 2020-09-16 | Option exercise (derivative) | 708 | $0.00 | 4,246 |
| 2020-09-16 | Option exercise | 2,699 | — | 42,402 |
| 2020-06-16 | Option exercise (derivative) | 1,278 | $0.00 | 5,114 |
| 2020-06-16 | Option exercise (derivative) | 708 | $0.00 | 4,954 |
| 2020-06-16 | Option exercise (derivative) | 711 | $0.00 | 7,827 |
| 2020-06-16 | Option exercise | 2,697 | — | 39,703 |
| 2020-06-05 | Option exercise (derivative) | 5,555 | $0.00 | 0 |
| 2020-06-05 | Option exercise | 5,555 | $8.82 | 42,561 |
| 2020-06-05 | Open-market sale | 5,555 | $55.82 | 37,006 |
| 2020-03-27 | Grant / award | 2,496 | $0.00 | 37,006 |
| 2020-03-25 | Grant / award (derivative) | 8,538 | $0.00 | 8,538 |
| 2020-03-25 | Grant / award (derivative) | 8,538 | $0.00 | 8,538 |
| 2020-03-17 | Option exercise (derivative) | 707 | $0.00 | 5,662 |
| 2020-03-17 | Option exercise (derivative) | 3,984 | $0.00 | 0 |
| 2020-03-17 | Option exercise (derivative) | 1,278 | $0.00 | 6,392 |
| 2020-03-17 | Option exercise | 4,973 | — | 34,510 |
| 2019-12-17 | Option exercise (derivative) | 1,279 | $0.00 | 7,670 |
| 2019-12-17 | Option exercise (derivative) | 708 | $0.00 | 6,369 |
| 2019-12-17 | Option exercise | 1,987 | — | 29,537 |
| 2019-09-17 | Option exercise (derivative) | 883 | $0.00 | 0 |
| 2019-09-17 | Option exercise (derivative) | 708 | $0.00 | 7,077 |
| 2019-09-17 | Option exercise (derivative) | 1,278 | $0.00 | 8,949 |
| 2019-09-17 | Option exercise | 4,153 | — | 27,550 |
| 2019-09-09 | Open-market sale | 5,734 | $64.80 | 23,397 |
| 2019-06-18 | Option exercise (derivative) | 707 | $0.00 | 7,785 |
| 2019-06-18 | Option exercise (derivative) | 1,278 | $0.00 | 10,227 |
| 2019-06-18 | Option exercise (derivative) | 929 | $0.00 | 930 |
| 2019-06-18 | Option exercise (derivative) | 883 | $0.00 | 883 |
| 2019-06-18 | Option exercise (derivative) | 353 | $0.00 | 354 |
| 2019-06-18 | Option exercise | 4,150 | — | 29,131 |
| 2019-03-19 | Option exercise (derivative) | 930 | $0.00 | 1,859 |
| 2019-03-19 | Option exercise (derivative) | 1,279 | $0.00 | 11,505 |
| 2019-03-19 | Option exercise (derivative) | 353 | $0.00 | 707 |
| 2019-03-19 | Option exercise (derivative) | 882 | $0.00 | 1,766 |
| 2019-03-19 | Option exercise | 3,444 | — | 24,981 |
| 2019-03-08 | Option exercise (derivative) | 2,037 | $0.00 | 0 |
| 2019-03-08 | Option exercise | 2,037 | $3.20 | 27,511 |
| 2019-03-08 | Open-market sale | 6,320 | $41.28 | 21,191 |
| 2019-03-07 | Grant / award (derivative) | 8,492 | $0.00 | 8,492 |
| 2019-03-07 | Grant / award (derivative) | 8,492 | $0.00 | 8,492 |
| 2019-03-04 | Grant / award (derivative) | 13,148 | $0.00 | 13,148 |
| 2018-12-18 | Option exercise (derivative) | 353 | $0.00 | 1,060 |
| 2018-12-18 | Option exercise (derivative) | 929 | $0.00 | 2,789 |
| 2018-12-18 | Option exercise (derivative) | 1,278 | $0.00 | 12,784 |
| 2018-12-18 | Option exercise (derivative) | 883 | $0.00 | 2,648 |
| 2018-12-18 | Option exercise | 3,443 | — | 25,474 |
| 2018-09-18 | Option exercise (derivative) | 882 | $0.00 | 3,531 |
| 2018-09-18 | Option exercise (derivative) | 1,160 | $0.00 | 0 |
| 2018-09-18 | Option exercise (derivative) | 354 | $0.00 | 1,413 |
| 2018-09-18 | Option exercise (derivative) | 930 | $0.00 | 3,718 |
| 2018-09-18 | Option exercise (derivative) | 1,278 | $0.00 | 14,062 |
| 2018-09-18 | Option exercise | 4,604 | — | 22,031 |
| 2018-06-18 | Option exercise (derivative) | 1,159 | $0.00 | 1,160 |
| 2018-06-18 | Option exercise (derivative) | 929 | $0.00 | 4,648 |
| 2018-06-18 | Option exercise (derivative) | 883 | $0.00 | 4,413 |
| 2018-06-18 | Option exercise (derivative) | 353 | $0.00 | 1,767 |
| 2018-06-18 | Option exercise | 3,324 | — | 17,193 |
| 2018-06-07 | Grant / award (derivative) | 15,340 | $0.00 | 15,340 |
| 2018-03-16 | Option exercise (derivative) | 930 | $0.00 | 5,577 |
| 2018-03-16 | Option exercise (derivative) | 353 | $0.00 | 2,120 |
| 2018-03-16 | Option exercise (derivative) | 1,160 | $0.00 | 2,319 |
| 2018-03-16 | Option exercise (derivative) | 882 | $0.00 | 5,296 |
| 2018-03-16 | Option exercise | 3,325 | — | 13,869 |
| 2018-02-26 | Grant / award (derivative) | 3,984 | $0.00 | 3,984 |
| 2017-12-29 | Open-market sale | 4,435 | $59.80 | 10,275 |
| 2017-12-18 | Option exercise (derivative) | 1,159 | $0.00 | 3,479 |
| 2017-12-18 | Option exercise (derivative) | 929 | $0.00 | 6,507 |
| 2017-12-18 | Option exercise (derivative) | 353 | $0.00 | 2,473 |
| 2017-12-18 | Option exercise (derivative) | 883 | $0.00 | 6,178 |
| 2017-12-18 | Option exercise | 3,324 | — | 14,710 |
| 2017-12-11 | Open-market sale | 11,340 | $59.80 | 11,386 |
| 2017-09-18 | Option exercise (derivative) | 354 | $0.00 | 2,826 |
| 2017-09-18 | Option exercise (derivative) | 883 | $0.00 | 7,061 |
| 2017-09-18 | Option exercise (derivative) | 930 | $0.00 | 7,436 |
| 2017-09-18 | Option exercise (derivative) | 1,313 | $0.00 | 0 |
| 2017-09-18 | Option exercise (derivative) | 1,159 | $0.00 | 4,638 |
| 2017-09-18 | Option exercise | 4,639 | — | 22,726 |
| 2017-06-16 | Option exercise (derivative) | 929 | $0.00 | 8,366 |
| 2017-06-16 | Option exercise (derivative) | 1,160 | $0.00 | 5,797 |
| 2017-06-16 | Option exercise (derivative) | 1,312 | $0.00 | 1,313 |
| 2017-06-16 | Option exercise (derivative) | 353 | $0.00 | 3,180 |
| 2017-06-16 | Option exercise (derivative) | 882 | $0.00 | 7,944 |
| 2017-06-16 | Option exercise | 4,636 | — | 17,863 |
| 2017-03-28 | Grant / award (derivative) | 9,295 | $0.00 | 9,295 |
| 2017-03-16 | Option exercise (derivative) | 1,313 | $0.00 | 2,625 |
| 2017-03-16 | Option exercise (derivative) | 1,159 | $0.00 | 6,957 |
| 2017-03-16 | Option exercise (derivative) | 353 | $0.00 | 3,533 |
| 2017-03-16 | Option exercise (derivative) | 883 | $0.00 | 8,826 |
| 2017-03-16 | Option exercise | 3,708 | — | 13,227 |
| 2017-03-13 | Open-market sale | 7,898 | $55.16 | 9,338 |
| 2016-12-16 | Option exercise (derivative) | 882 | $0.00 | 9,709 |
| 2016-12-16 | Option exercise (derivative) | 353 | $0.00 | 3,886 |
| 2016-12-16 | Option exercise (derivative) | 1,159 | $0.00 | 8,116 |
| 2016-12-16 | Option exercise (derivative) | 1,312 | $0.00 | 3,938 |
| 2016-12-16 | Option exercise | 3,706 | — | 17,236 |
| 2016-09-30 | Open-market sale | 4,197 | $74.19 | 13,530 |
| 2016-09-16 | Option exercise (derivative) | 1,160 | $0.00 | 9,275 |
| 2016-09-16 | Option exercise (derivative) | 487 | $0.00 | 0 |
| 2016-09-16 | Option exercise (derivative) | 1,313 | $0.00 | 5,250 |
| 2016-09-16 | Option exercise (derivative) | 883 | $0.00 | 10,591 |
| 2016-09-16 | Option exercise (derivative) | 354 | $0.00 | 4,239 |
| 2016-09-16 | Option exercise | 4,197 | — | 17,727 |
| 2016-06-16 | Option exercise (derivative) | 1,159 | $0.00 | 10,435 |
| 2016-06-16 | Option exercise (derivative) | 486 | $0.00 | 487 |
| 2016-06-16 | Option exercise (derivative) | 882 | $0.00 | 11,474 |
| 2016-06-16 | Option exercise (derivative) | 353 | $0.00 | 4,593 |
| 2016-06-16 | Option exercise (derivative) | 1,312 | $0.00 | 6,563 |
| 2016-06-16 | Option exercise | 4,192 | — | 13,239 |
| 2016-03-16 | Option exercise (derivative) | 486 | $0.00 | 973 |
| 2016-03-16 | Option exercise (derivative) | 1,125 | $0.00 | 0 |
| 2016-03-16 | Option exercise (derivative) | 1,313 | $0.00 | 7,875 |
| 2016-03-16 | Option exercise (derivative) | 353 | $0.00 | 4,946 |
| 2016-03-16 | Option exercise (derivative) | 1,160 | $0.00 | 11,594 |
| 2016-03-16 | Option exercise | 4,437 | — | 9,047 |
| 2016-03-07 | Grant / award (derivative) | 12,356 | $0.00 | 12,356 |
| 2015-12-16 | Option exercise (derivative) | 353 | $0.00 | 5,299 |
| 2015-12-16 | Option exercise (derivative) | 1,159 | $0.00 | 12,754 |
| 2015-12-16 | Option exercise (derivative) | 1,312 | $0.00 | 9,188 |
| 2015-12-16 | Option exercise (derivative) | 1,125 | $0.00 | 1,125 |
| 2015-12-16 | Option exercise (derivative) | 486 | $0.00 | 1,459 |
| 2015-12-16 | Option exercise | 4,435 | — | 4,435 |
| 2015-10-08 | Grant / award (derivative) | 5,652 | $0.00 | 5,652 |
| 2015-09-17 | Open-market sale | 1,656 | $71.80 | 4,083 |
| 2015-09-17 | Open-market sale | 4,083 | $74.80 | 0 |
| 2015-09-16 | Option exercise (derivative) | 1,313 | $0.00 | 10,500 |
| 2015-09-16 | Option exercise (derivative) | 1,159 | $0.00 | 13,913 |
| 2015-09-16 | Option exercise (derivative) | 486 | $0.00 | 1,945 |
| 2015-09-16 | Option exercise (derivative) | 1,125 | $0.00 | 2,250 |
| 2015-09-16 | Option exercise | 4,083 | $0.00 | 5,739 |
| 2015-09-14 | Option exercise (derivative) | 1,987 | $0.00 | 5,963 |
| 2015-09-14 | Option exercise (derivative) | 6,334 | $0.00 | 5,241 |
| 2015-09-14 | Open-market sale | 8,321 | $68.80 | 1,494 |
| 2015-09-14 | Option exercise | 6,334 | $9.99 | 7,828 |
| 2015-09-14 | Option exercise | 1,987 | $38.92 | 9,815 |
| 2015-09-04 | Open-market sale | 6,520 | $70.25 | 1,494 |
| 2015-06-18 | Open-market sale | 1,646 | $125.04 | 8,014 |
| 2015-06-16 | Option exercise (derivative) | 1,312 | $0.00 | 11,813 |
| 2015-06-16 | Option exercise (derivative) | 1,160 | $0.00 | 15,072 |
| 2015-06-16 | Option exercise (derivative) | 1,125 | $0.00 | 3,375 |
| 2015-06-16 | Option exercise (derivative) | 486 | $0.00 | 2,431 |
| 2015-06-16 | Option exercise | 4,083 | — | 9,660 |
| 2015-03-17 | Option exercise (derivative) | 1,159 | $0.00 | 16,232 |
| 2015-03-17 | Option exercise (derivative) | 1,313 | $0.00 | 13,125 |
| 2015-03-17 | Option exercise (derivative) | 1,125 | $0.00 | 4,500 |
| 2015-03-17 | Option exercise (derivative) | 486 | $0.00 | 2,917 |
| 2015-03-17 | Option exercise | 4,083 | $0.00 | 5,577 |
| 2015-03-06 | Open-market sale | 11,729 | $63.43 | 1,131 |
| 2014-12-16 | Option exercise (derivative) | 1,125 | $0.00 | 5,625 |
| 2014-12-16 | Option exercise (derivative) | 487 | $0.00 | 3,403 |
| 2014-12-16 | Option exercise (derivative) | 1,159 | $0.00 | 17,391 |
| 2014-12-16 | Option exercise (derivative) | 1,312 | $0.00 | 14,438 |
| 2014-12-16 | Option exercise | 4,083 | — | 12,860 |
| 2014-09-16 | Option exercise (derivative) | 1,125 | $0.00 | 6,750 |
| 2014-09-16 | Option exercise (derivative) | 1,313 | $0.00 | 15,750 |
| 2014-09-16 | Option exercise (derivative) | 486 | $0.00 | 3,890 |
| 2014-09-16 | Option exercise | 2,924 | — | 8,777 |
| 2014-09-08 | Grant / award (derivative) | 18,550 | $0.00 | 18,550 |
| 2014-09-08 | Grant / award (derivative) | 7,950 | $0.00 | 7,950 |
| 2014-06-16 | Option exercise (derivative) | 486 | $0.00 | 4,376 |
| 2014-06-16 | Option exercise (derivative) | 1,125 | $0.00 | 7,875 |
| 2014-06-16 | Option exercise (derivative) | 1,312 | $0.00 | 17,063 |
| 2014-06-16 | Option exercise | 2,923 | — | 5,448 |
| 2014-03-17 | Option exercise (derivative) | 1,313 | $0.00 | 18,375 |
| 2014-03-17 | Option exercise (derivative) | 486 | $0.00 | 4,862 |
| 2014-03-17 | Option exercise | 486 | — | 1,212 |
| 2014-03-17 | Option exercise | 1,313 | — | 2,525 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.