Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-06-12 Gift | 2026-06-16 4:59 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 135,892 | $0 | 4,796,688 (Direct) | View |
| 2026-06-10 Exercise | 2026-06-12 7:34 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Ball Jack Director | 43,973 | $0 | 86,678 (Direct) | View |
| 2026-06-10 Option Award | 2026-06-12 7:31 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | MUIR GLENN P Director | 85,390 | $0 | 85,390 (Direct) | View |
| 2026-06-10 Option Award | 2026-06-12 7:27 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Chin Richard Director | 51,594 | $0 | 51,594 (Direct) | View |
| 2026-06-10 Option Award | 2026-06-12 7:25 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Imper Vera Director | 51,594 | $0 | 111,273 (Direct) | View |
| 2026-06-10 Exercise | 2026-06-12 7:25 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Imper Vera Director | 43,973 | $0 | 111,273 (Direct) | View |
| 2026-06-10 Option Award | 2026-06-12 7:23 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | NEFF DEBORAH J Director | 51,594 | $0 | 111,273 (Direct) | View |
| 2026-06-10 Exercise | 2026-06-12 7:23 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | NEFF DEBORAH J Director | 43,973 | $0 | 111,273 (Direct) | View |
| 2026-06-10 Option Award | 2026-06-12 7:22 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Holder Michael Director | 51,594 | $0 | 112,288 (Direct) | View |
| 2026-06-10 Exercise | 2026-06-12 7:22 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Holder Michael Director | 43,973 | $0 | 112,288 (Direct) | View |
| 2026-05-18 Exercise | 2026-05-20 6:01 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Holder Michael Director | 1,454 | $0 | 26,178 (Direct) | View |
| 2026-05-18 Exercise | 2026-05-20 5:59 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Chin Richard Director | 6,107 | $0 | 73,289 (Direct) | View |
| 2026-05-18 Tax Withholding | 2026-05-20 5:56 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 5,532 | $3.55 | 5,285,557 (Direct) | View |
| 2026-05-18 Exercise | 2026-05-20 5:56 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 22,179 | $0 | 5,285,557 (Direct) | View |
| 2026-05-18 Tax Withholding | 2026-05-20 5:53 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 2,685 | $3.55 | 234,080 (Direct) | View |
| 2026-05-18 Exercise | 2026-05-20 5:53 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 10,464 | $0 | 234,080 (Direct) | View |
| 2026-05-18 Tax Withholding | 2026-05-20 5:50 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 25,542 | $3.55 | 6,884,513 (Direct) | View |
| 2026-05-18 Exercise | 2026-05-20 5:50 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 80,062 | $0 | 6,884,513 (Direct) | View |
| 2026-05-18 Tax Withholding | 2026-05-20 5:48 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | McCombe William D. Chief Financial Officer | 9,229 | $3.55 | 555,750 (Direct) | View |
| 2026-05-18 Exercise | 2026-05-20 5:48 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | McCombe William D. Chief Financial Officer | 25,719 | $0 | 555,750 (Direct) | View |
| 2026-05-18 Tax Withholding | 2026-05-20 5:45 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 8,719 | $3.55 | 559,300 (Direct) | View |
| 2026-05-18 Exercise | 2026-05-20 5:45 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 24,295 | $0 | 559,300 (Direct) | View |
| 2026-03-13 Gift | 2026-03-13 6:30 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 1,176,000 | $0 | 4,915,933 (Direct) | View |
| 2026-03-10 Exercise | 2026-03-12 4:41 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Chin Richard Director | 6,107 | $0 | 73,289 (Direct) | View |
| 2026-03-10 Option Award | 2026-03-12 4:40 pm | N/A 2036-03-09 | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 346,567 | $0 | 688,133 (Direct) | View |
| 2026-03-10 Tax Withholding | 2026-03-12 4:40 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 11,748 | $4.23 | 688,133 (Direct) | View |
| 2026-03-10 Exercise | 2026-03-12 4:40 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 29,722 | $0 | 688,133 (Direct) | View |
| 2026-03-10 Option Award | 2026-03-12 4:39 pm | N/A 2036-03-09 | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 203,891 | $0 | 307,430 (Direct) | View |
| 2026-03-10 Tax Withholding | 2026-03-12 4:39 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 3,043 | $4.23 | 307,430 (Direct) | View |
| 2026-03-10 Exercise | 2026-03-12 4:39 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 9,828 | $0 | 307,430 (Direct) | View |
| 2026-03-10 Option Award | 2026-03-12 4:38 pm | N/A 2036-03-09 | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 1,400,952 | $0 | 7,395,600 (Direct) | View |
| 2026-03-10 Tax Withholding | 2026-03-12 4:38 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 20,988 | $4.23 | 7,395,600 (Direct) | View |
| 2026-03-10 Exercise | 2026-03-12 4:38 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 83,844 | $0 | 7,395,600 (Direct) | View |
| 2026-03-10 Option Award | 2026-03-12 4:37 pm | N/A 2036-03-09 | Cytek Biosciences Inc. | CTKB | McCombe William D. Chief Financial Officer | 392,995 | $0 | 701,184 (Direct) | View |
| 2026-03-10 Tax Withholding | 2026-03-12 4:37 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | McCombe William D. Chief Financial Officer | 9,748 | $4.23 | 701,184 (Direct) | View |
| 2026-03-10 Exercise | 2026-03-12 4:37 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | McCombe William D. Chief Financial Officer | 23,721 | $0 | 701,184 (Direct) | View |
| 2026-03-10 Option Award | 2026-03-12 4:36 pm | N/A 2036-03-09 | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 348,223 | $0 | 6,587,777 (Direct) | View |
| 2026-03-10 Tax Withholding | 2026-03-12 4:36 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 7,731 | $4.23 | 6,587,777 (Direct) | View |
| 2026-03-10 Exercise | 2026-03-12 4:36 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 25,400 | $0 | 6,587,777 (Direct) | View |
| 2026-03-10 Exercise | 2026-03-12 4:34 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Holder Michael Director | 2,908 | $0 | 26,178 (Direct) | View |
| 2026-02-18 Tax Withholding | 2026-02-20 5:50 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 1,339 | $4.2 | 5,359,827 (Direct) | View |
| 2026-02-18 Exercise | 2026-02-20 5:50 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 4,514 | $0 | 5,359,827 (Direct) | View |
| 2026-02-18 Tax Withholding | 2026-02-20 5:47 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 395 | $4.2 | 6,074,264 (Direct) | View |
| 2026-02-18 Exercise | 2026-02-20 5:47 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 1,332 | $0 | 6,074,264 (Direct) | View |
| 2026-02-18 Tax Withholding | 2026-02-20 5:44 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 525 | $4.2 | 116,462 (Direct) | View |
| 2026-02-18 Exercise | 2026-02-20 5:44 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 1,346 | $0 | 116,462 (Direct) | View |
| 2025-11-18 Exercise | 2025-11-20 7:09 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 21,031 | $0 | 6,247,680 (Direct) | View |
| 2025-11-18 Tax Withholding | 2025-11-20 7:09 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 5,123 | $5.53 | 6,247,680 (Direct) | View |
| 2025-11-18 Exercise | 2025-11-20 7:07 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 7,371 | $0 | 106,582 (Direct) | View |
| 2025-11-18 Tax Withholding | 2025-11-20 7:07 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 1,885 | $5.53 | 106,582 (Direct) | View |
| 2025-11-18 Exercise | 2025-11-20 7:06 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 24,307 | $0 | 353,839 (Direct) | View |
| 2025-11-18 Tax Withholding | 2025-11-20 7:06 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 7,817 | $5.53 | 353,839 (Direct) | View |
| 2025-11-18 Exercise | 2025-11-20 7:03 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | McCombe William D. Chief Financial Officer | 19,371 | $0 | 317,937 (Direct) | View |
| 2025-11-18 Tax Withholding | 2025-11-20 7:03 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | McCombe William D. Chief Financial Officer | 6,228 | $5.53 | 317,937 (Direct) | View |
| 2025-11-18 Exercise | 2025-11-20 6:56 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 69,641 | $0 | 6,016,975 (Direct) | View |
| 2025-11-18 Tax Withholding | 2025-11-20 6:56 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 27,406 | $5.53 | 6,016,975 (Direct) | View |
| 2025-11-18 Exercise | 2025-11-20 6:53 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Holder Michael Director | 2,181 | $0 | 26,178 (Direct) | View |
| 2025-11-18 Exercise | 2025-11-20 6:50 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Chin Richard Director | 6,107 | $0 | 73,289 (Direct) | View |
| 2025-08-18 Exercise | 2025-08-20 5:58 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 21,031 | $0 | 6,252,803 (Direct) | View |
| 2025-08-18 Tax Withholding | 2025-08-20 5:58 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 5,738 | $4.06 | 6,252,803 (Direct) | View |
| 2025-08-18 Exercise | 2025-08-20 5:56 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 7,371 | $0 | 108,467 (Direct) | View |
| 2025-08-18 Tax Withholding | 2025-08-20 5:56 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 2,872 | $4.06 | 108,467 (Direct) | View |
| 2025-08-18 Exercise | 2025-08-20 5:49 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 24,307 | $0 | 361,656 (Direct) | View |
| 2025-08-18 Tax Withholding | 2025-08-20 5:49 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 8,829 | $4.06 | 361,656 (Direct) | View |
| 2025-08-18 Exercise | 2025-08-20 5:47 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 69,641 | $0 | 6,044,381 (Direct) | View |
| 2025-08-18 Tax Withholding | 2025-08-20 5:47 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 16,959 | $4.06 | 6,044,381 (Direct) | View |
| 2025-08-18 Exercise | 2025-08-20 5:45 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | McCombe William D. Chief Financial Officer | 19,371 | $0 | 324,165 (Direct) | View |
| 2025-08-18 Tax Withholding | 2025-08-20 5:45 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | McCombe William D. Chief Financial Officer | 7,546 | $4.06 | 324,165 (Direct) | View |
| 2025-08-18 Exercise | 2025-08-20 5:43 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Holder Michael Director | 2,181 | $0 | 26,178 (Direct) | View |
| 2025-08-18 Exercise | 2025-08-20 5:41 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Chin Richard Director | 4,071 | $0 | 73,289 (Direct) | View |