Cytek Biosciences, Inc. (CTKB) · Insider trading
What Cytek Biosciences's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$0
0 insiders, 0 trades
Sold, 12 months
$0
0 insiders
Net, 12 months
$0
bought less sold
Latest filing
2026-08-20
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| McCombe William D.Chief Financial Officer | $97,300 | – | 1 | 2025-06-02 | 55,746 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2025-06-02 | McCombe William D.Chief Financial Officer | Buy | 35,000 | 2.78 | $97,300 | 55,746 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
145 × option exercise123 × shares withheld for tax2 × gift
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-08-18 | Muir Glenn PDirector | Option exercise M | +3,086 | – | 3,086 | Form 4 |
| 2026-08-18 | Chin RichardDirector | Option exercise M | +6,107 | – | 28,499 | Form 4 |
| 2026-08-18 | Holder MichaelDirector | Option exercise M | +2,181 | – | 62,875 | Form 4 |
| 2026-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +11,781 | – | 5,488,984 | Form 4 |
| 2026-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −2,869 | 4.67 | 5,486,115 | Form 4 |
| 2026-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +22,100 | – | 5,508,215 | Form 4 |
| 2026-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −5,382 | 4.67 | 5,502,833 | Form 4 |
| 2026-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +29,002 | – | 5,531,835 | Form 4 |
| 2026-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −7,062 | 4.67 | 5,524,773 | Form 4 |
| 2026-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +57,212 | – | 5,581,985 | Form 4 |
| 2026-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −20,956 | 4.67 | 5,561,029 | Form 4 |
| 2026-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +7,363 | – | 4,804,051 | Form 4 |
| 2026-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −1,778 | 4.67 | 4,802,273 | Form 4 |
| 2026-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +5,525 | – | 4,807,798 | Form 4 |
| 2026-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −1,346 | 4.67 | 4,806,452 | Form 4 |
| 2026-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +6,162 | – | 4,812,614 | Form 4 |
| 2026-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −1,501 | 4.67 | 4,811,113 | Form 4 |
| 2026-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +14,220 | – | 4,825,333 | Form 4 |
| 2026-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −3,463 | 4.67 | 4,821,870 | Form 4 |
| 2026-08-18 | McCombe William D.Chief Financial Officer | Option exercise M | +6,320 | – | 117,497 | Form 4 |
| 2026-08-18 | McCombe William D.Chief Financial Officer | Shares withheld for tax F | −2,111 | 4.67 | 115,386 | Form 4 |
| 2026-08-18 | McCombe William D.Chief Financial Officer | Option exercise M | +13,051 | – | 128,437 | Form 4 |
| 2026-08-18 | McCombe William D.Chief Financial Officer | Shares withheld for tax F | −4,392 | 4.67 | 124,045 | Form 4 |
| 2026-08-18 | McCombe William D.Chief Financial Officer | Option exercise M | +16,049 | – | 140,094 | Form 4 |
| 2026-08-18 | McCombe William D.Chief Financial Officer | Shares withheld for tax F | −5,401 | 4.67 | 134,693 | Form 4 |
| 2026-06-12 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Gift G | −135,892 | – | 4,796,688 | Form 4 |
| 2026-06-10 | Neff Deborah JDirector | Option exercise M | +43,973 | – | 59,679 | Form 4 |
| 2026-06-10 | Holder MichaelDirector | Option exercise M | +43,973 | – | 60,694 | Form 4 |
| 2026-06-10 | Ball JackDirector | Option exercise M | +43,973 | – | 86,678 | Form 4 |
| 2026-06-10 | Imper VeraDirector | Option exercise M | +43,973 | – | 59,679 | Form 4 |
| 2026-05-18 | Chin RichardDirector | Option exercise M | +6,107 | – | 22,392 | Form 4 |
| 2026-05-18 | Holder MichaelDirector | Option exercise M | +1,454 | – | 16,721 | Form 4 |
| 2026-05-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +7,854 | – | 5,430,537 | Form 4 |
| 2026-05-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −1,913 | 3.55 | 5,428,624 | Form 4 |
| 2026-05-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +14,733 | – | 5,443,357 | Form 4 |
| 2026-05-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −3,588 | 3.55 | 5,439,769 | Form 4 |
| 2026-05-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +19,334 | – | 5,459,103 | Form 4 |
| 2026-05-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −5,032 | 3.55 | 5,454,071 | Form 4 |
| 2026-05-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +38,141 | – | 5,492,212 | Form 4 |
| 2026-05-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −15,009 | 3.55 | 5,477,203 | Form 4 |
| 2026-05-18 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +2,454 | – | 136,890 | Form 4 |
| 2026-05-18 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −881 | 3.55 | 136,009 | Form 4 |
| 2026-05-18 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +5,156 | – | 141,165 | Form 4 |
| 2026-05-18 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −1,850 | 3.55 | 139,315 | Form 4 |
| 2026-05-18 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +7,250 | – | 146,565 | Form 4 |
| 2026-05-18 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −2,602 | 3.55 | 143,963 | Form 4 |
| 2026-05-18 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +9,435 | – | 153,398 | Form 4 |
| 2026-05-18 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −3,386 | 3.55 | 150,012 | Form 4 |
| 2026-05-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +4,908 | – | 4,920,841 | Form 4 |
| 2026-05-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −1,224 | 3.55 | 4,919,617 | Form 4 |
| 2026-05-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +3,683 | – | 4,923,300 | Form 4 |
| 2026-05-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −919 | 3.55 | 4,922,381 | Form 4 |
| 2026-05-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +4,108 | – | 4,926,489 | Form 4 |
| 2026-05-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −1,025 | 3.55 | 4,925,464 | Form 4 |
| 2026-05-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +9,480 | – | 4,934,944 | Form 4 |
| 2026-05-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −2,364 | 3.55 | 4,932,580 | Form 4 |
| 2026-05-18 | McCombe William D.Chief Financial Officer | Option exercise M | +6,320 | – | 101,007 | Form 4 |
| 2026-05-18 | McCombe William D.Chief Financial Officer | Shares withheld for tax F | −2,268 | 3.55 | 98,739 | Form 4 |
| 2026-05-18 | McCombe William D.Chief Financial Officer | Option exercise M | +8,700 | – | 107,439 | Form 4 |
| 2026-05-18 | McCombe William D.Chief Financial Officer | Shares withheld for tax F | −3,122 | 3.55 | 104,317 | Form 4 |
| 2026-05-18 | McCombe William D.Chief Financial Officer | Option exercise M | +10,699 | – | 115,016 | Form 4 |
| 2026-05-18 | McCombe William D.Chief Financial Officer | Shares withheld for tax F | −3,839 | 3.55 | 111,177 | Form 4 |
| 2026-05-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +1,024 | – | 36,711 | Form 4 |
| 2026-05-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −263 | 3.55 | 36,448 | Form 4 |
| 2026-05-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +1,473 | – | 37,921 | Form 4 |
| 2026-05-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −378 | 3.55 | 37,543 | Form 4 |
| 2026-05-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +2,416 | – | 39,959 | Form 4 |
| 2026-05-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −620 | 3.55 | 39,339 | Form 4 |
| 2026-05-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +5,551 | – | 44,890 | Form 4 |
| 2026-05-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −1,424 | 3.55 | 43,466 | Form 4 |
| 2026-03-13 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Gift G | −1,176,000 | – | 4,915,933 | Form 4 |
| 2026-03-10 | Chin RichardDirector | Option exercise M | +6,107 | – | 16,285 | Form 4 |
| 2026-03-10 | Holder MichaelDirector | Option exercise M | +2,908 | – | 15,267 | Form 4 |
| 2026-03-10 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +15,708 | – | 5,375,535 | Form 4 |
| 2026-03-10 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −3,825 | 4.23 | 5,371,710 | Form 4 |
| 2026-03-10 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +29,467 | – | 5,401,177 | Form 4 |
| 2026-03-10 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −7,747 | 4.23 | 5,393,430 | Form 4 |
| 2026-03-10 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +38,669 | – | 5,432,099 | Form 4 |
| 2026-03-10 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −9,416 | 4.23 | 5,422,683 | Form 4 |
| 2026-03-10 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +4,908 | – | 121,370 | Form 4 |
| 2026-03-10 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −1,761 | 4.23 | 119,609 | Form 4 |
| 2026-03-10 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +10,313 | – | 129,922 | Form 4 |
| 2026-03-10 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −4,247 | 4.23 | 125,675 | Form 4 |
| 2026-03-10 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +14,501 | – | 140,176 | Form 4 |
| 2026-03-10 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −5,740 | 4.23 | 134,436 | Form 4 |
| 2026-03-10 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +9,817 | – | 6,084,081 | Form 4 |
| 2026-03-10 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −3,047 | 4.23 | 6,081,034 | Form 4 |
| 2026-03-10 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +7,366 | – | 6,088,400 | Form 4 |
| 2026-03-10 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −2,287 | 4.23 | 6,086,113 | Form 4 |
| 2026-03-10 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +8,217 | – | 6,094,330 | Form 4 |
| 2026-03-10 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −2,397 | 4.23 | 6,091,933 | Form 4 |
| 2026-03-10 | McCombe William D.Chief Financial Officer | Option exercise M | +6,320 | – | 87,034 | Form 4 |
| 2026-03-10 | McCombe William D.Chief Financial Officer | Shares withheld for tax F | −2,603 | 4.23 | 84,431 | Form 4 |
| 2026-03-10 | McCombe William D.Chief Financial Officer | Option exercise M | +17,401 | – | 101,832 | Form 4 |
| 2026-03-10 | McCombe William D.Chief Financial Officer | Shares withheld for tax F | −7,145 | 4.23 | 94,687 | Form 4 |
| 2026-03-10 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +2,049 | – | 30,951 | Form 4 |
| 2026-03-10 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −635 | 4.23 | 30,316 | Form 4 |
| 2026-03-10 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +2,946 | – | 33,262 | Form 4 |
| 2026-03-10 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −912 | 4.23 | 32,350 | Form 4 |
| 2026-03-10 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +4,833 | – | 37,183 | Form 4 |
| 2026-03-10 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −1,496 | 4.23 | 35,687 | Form 4 |
| 2026-02-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +4,514 | – | 5,361,166 | Form 4 |
| 2026-02-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −1,339 | 4.20 | 5,359,827 | Form 4 |
| 2026-02-18 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +1,346 | – | 116,987 | Form 4 |
| 2026-02-18 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −525 | 4.20 | 116,462 | Form 4 |
| 2026-02-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +1,332 | – | 6,074,659 | Form 4 |
| 2026-02-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −395 | 4.20 | 6,074,264 | Form 4 |
| 2025-11-18 | Chin RichardDirector | Option exercise M | +6,107 | – | 10,178 | Form 4 |
| 2025-11-18 | Holder MichaelDirector | Option exercise M | +2,181 | – | 12,359 | Form 4 |
| 2025-11-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +6,758 | – | 5,321,175 | Form 4 |
| 2025-11-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −2,660 | 5.53 | 5,318,515 | Form 4 |
| 2025-11-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +11,781 | – | 5,330,296 | Form 4 |
| 2025-11-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −4,636 | 5.53 | 5,325,660 | Form 4 |
| 2025-11-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +22,100 | – | 5,347,760 | Form 4 |
| 2025-11-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −8,697 | 5.53 | 5,339,063 | Form 4 |
| 2025-11-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +29,002 | – | 5,368,065 | Form 4 |
| 2025-11-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −11,413 | 5.53 | 5,356,652 | Form 4 |
| 2025-11-18 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +2,016 | – | 101,167 | Form 4 |
| 2025-11-18 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −649 | 5.53 | 100,518 | Form 4 |
| 2025-11-18 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +3,681 | – | 104,199 | Form 4 |
| 2025-11-18 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −1,184 | 5.53 | 103,015 | Form 4 |
| 2025-11-18 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +7,735 | – | 110,750 | Form 4 |
| 2025-11-18 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −2,487 | 5.53 | 108,263 | Form 4 |
| 2025-11-18 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +10,875 | – | 119,138 | Form 4 |
| 2025-11-18 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −3,497 | 5.53 | 115,641 | Form 4 |
| 2025-11-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +1,981 | – | 6,059,400 | Form 4 |
| 2025-11-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −483 | 5.53 | 6,058,917 | Form 4 |
| 2025-11-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +7,363 | – | 6,066,280 | Form 4 |
| 2025-11-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −1,793 | 5.53 | 6,064,487 | Form 4 |
| 2025-11-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +5,525 | – | 6,070,012 | Form 4 |
| 2025-11-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −1,346 | 5.53 | 6,068,666 | Form 4 |
| 2025-11-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +6,162 | – | 6,074,828 | Form 4 |
| 2025-11-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −1,501 | 5.53 | 6,073,327 | Form 4 |
| 2025-11-18 | McCombe William D.Chief Financial Officer | Option exercise M | +6,320 | – | 73,891 | Form 4 |
| 2025-11-18 | McCombe William D.Chief Financial Officer | Shares withheld for tax F | −2,032 | 5.53 | 71,859 | Form 4 |
| 2025-11-18 | McCombe William D.Chief Financial Officer | Option exercise M | +13,051 | – | 84,910 | Form 4 |
| 2025-11-18 | McCombe William D.Chief Financial Officer | Shares withheld for tax F | −4,196 | 5.53 | 80,714 | Form 4 |
| 2025-11-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +1,536 | – | 24,952 | Form 4 |
| 2025-11-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −393 | 5.53 | 24,559 | Form 4 |
| 2025-11-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +2,210 | – | 26,769 | Form 4 |
| 2025-11-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −565 | 5.53 | 26,204 | Form 4 |
| 2025-11-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +3,625 | – | 29,829 | Form 4 |
| 2025-11-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −927 | 5.53 | 28,902 | Form 4 |
| 2025-08-18 | Chin RichardDirector | Option exercise M | +4,071 | – | 4,071 | Form 4 |
| 2025-08-18 | Holder MichaelDirector | Option exercise M | +2,181 | – | 10,178 | Form 4 |
| 2025-08-18 | McCombe William D.Chief Financial Officer | Option exercise M | +6,320 | – | 62,066 | Form 4 |
| 2025-08-18 | McCombe William D.Chief Financial Officer | Shares withheld for tax F | −2,462 | 4.06 | 59,604 | Form 4 |
| 2025-08-18 | McCombe William D.Chief Financial Officer | Option exercise M | +13,051 | – | 72,655 | Form 4 |
| 2025-08-18 | McCombe William D.Chief Financial Officer | Shares withheld for tax F | −5,084 | 4.06 | 67,571 | Form 4 |
| 2025-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +6,758 | – | 5,268,493 | Form 4 |
| 2025-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −1,646 | 4.06 | 5,266,847 | Form 4 |
| 2025-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +11,781 | – | 5,278,628 | Form 4 |
| 2025-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −2,869 | 4.06 | 5,275,759 | Form 4 |
| 2025-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +22,100 | – | 5,297,859 | Form 4 |
| 2025-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −5,382 | 4.06 | 5,292,477 | Form 4 |
| 2025-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Option exercise M | +29,002 | – | 5,321,479 | Form 4 |
| 2025-08-18 | Jiang WenbinDirector, PRESIDENT AND CEO | Shares withheld for tax F | −7,062 | 4.06 | 5,314,417 | Form 4 |
| 2025-08-18 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +2,016 | – | 85,689 | Form 4 |
| 2025-08-18 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −786 | 4.06 | 84,903 | Form 4 |
| 2025-08-18 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +3,681 | – | 88,584 | Form 4 |
| 2025-08-18 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −1,434 | 4.06 | 87,150 | Form 4 |
| 2025-08-18 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +7,735 | – | 94,885 | Form 4 |
| 2025-08-18 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −3,000 | 4.06 | 91,885 | Form 4 |
| 2025-08-18 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +10,875 | – | 102,760 | Form 4 |
| 2025-08-18 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −3,609 | 4.06 | 99,151 | Form 4 |
| 2025-08-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +1,536 | – | 20,453 | Form 4 |
| 2025-08-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −599 | 4.06 | 19,854 | Form 4 |
| 2025-08-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +2,210 | – | 22,064 | Form 4 |
| 2025-08-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −861 | 4.06 | 21,203 | Form 4 |
| 2025-08-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +3,625 | – | 24,828 | Form 4 |
| 2025-08-18 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −1,412 | 4.06 | 23,416 | Form 4 |
| 2025-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +1,981 | – | 6,044,107 | Form 4 |
| 2025-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −588 | 4.06 | 6,043,519 | Form 4 |
| 2025-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +7,363 | – | 6,050,882 | Form 4 |
| 2025-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −2,184 | 4.06 | 6,048,698 | Form 4 |
| 2025-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +5,525 | – | 6,054,223 | Form 4 |
| 2025-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −1,498 | 4.06 | 6,052,725 | Form 4 |
| 2025-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +6,162 | – | 6,058,887 | Form 4 |
| 2025-08-18 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −1,468 | 4.06 | 6,057,419 | Form 4 |
| 2025-06-05 | Neff Deborah JDirector | Option exercise M | +15,706 | – | 15,706 | Form 4 |
| 2025-06-05 | Ball JackDirector | Option exercise M | +15,706 | – | 42,705 | Form 4 |
| 2025-06-05 | Hardison Don MDirector | Option exercise M | +15,706 | – | 15,706 | Form 4 |
| 2025-06-05 | Imper VeraDirector | Option exercise M | +15,706 | – | 15,706 | Form 4 |
| 2025-05-19 | Holder MichaelDirector | Option exercise M | +1,454 | – | 7,997 | Form 4 |
| 2025-05-19 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +1,981 | – | 6,033,783 | Form 4 |
| 2025-05-19 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −588 | 2.69 | 6,033,195 | Form 4 |
| 2025-05-19 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +4,908 | – | 6,038,103 | Form 4 |
| 2025-05-19 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −1,456 | 2.69 | 6,036,647 | Form 4 |
| 2025-05-19 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +3,683 | – | 6,040,330 | Form 4 |
| 2025-05-19 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −1,093 | 2.69 | 6,039,237 | Form 4 |
| 2025-05-19 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Option exercise M | +4,108 | – | 6,043,345 | Form 4 |
| 2025-05-19 | Yan MingDirector, CHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −1,219 | 2.69 | 6,042,126 | Form 4 |
| 2025-05-19 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +1,024 | – | 16,943 | Form 4 |
| 2025-05-19 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −399 | 2.69 | 16,544 | Form 4 |
| 2025-05-19 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +1,473 | – | 18,017 | Form 4 |
| 2025-05-19 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −574 | 2.69 | 17,443 | Form 4 |
| 2025-05-19 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Option exercise M | +2,416 | – | 19,859 | Form 4 |
| 2025-05-19 | Busque PhilippeSVP, GLOBAL SALES AND SERVICES | Shares withheld for tax F | −942 | 2.69 | 18,917 | Form 4 |
| 2025-05-19 | Barnett ValerieCHIEF LEGAL OFFICER | Option exercise M | +2,016 | – | 75,388 | Form 4 |
| 2025-05-19 | Barnett ValerieCHIEF LEGAL OFFICER | Shares withheld for tax F | −786 | 2.69 | 74,602 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.