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>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2025-06-02 Purchase | 2025-06-03 5:39 pm | Cytek Biosciences Inc. | CTKB | McCombe William D. Chief Financial Officer | 35,000 | $2.78 | $97,300 | 55,746 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2025-06-05 Exercise | 2025-06-09 5:11 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Imper Vera Director | 15,706 | $0 | 15,706 (Direct) | View |
| 2025-06-05 Exercise | 2025-06-09 5:08 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | HARDISON DON M Director | 15,706 | $0 | 15,706 (Direct) | View |
| 2025-06-05 Exercise | 2025-06-09 5:04 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Ball Jack Director | 15,706 | $0 | 42,705 (Direct) | View |
| 2025-06-05 Exercise | 2025-06-09 4:57 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | NEFF DEBORAH J Director | 15,706 | $0 | 15,706 (Direct) | View |
| 2025-05-19 Tax Withholding | 2025-05-21 5:57 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | McCombe William D. Chief Financial Officer | 13,237 | $2.69 | 296,711 (Direct) | View |
| 2025-05-19 Exercise | 2025-05-21 5:57 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | McCombe William D. Chief Financial Officer | 33,983 | $0 | 296,711 (Direct) | View |
| 2025-05-19 Tax Withholding | 2025-05-21 5:55 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 11,855 | $2.69 | 6,061,340 (Direct) | View |
| 2025-05-19 Exercise | 2025-05-21 5:55 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 48,679 | $0 | 6,061,340 (Direct) | View |
| 2025-05-19 Tax Withholding | 2025-05-21 5:54 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 6,575 | $2.69 | 370,485 (Direct) | View |
| 2025-05-19 Exercise | 2025-05-21 5:54 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 16,876 | $0 | 370,485 (Direct) | View |
| 2025-05-19 Tax Withholding | 2025-05-21 5:52 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 1,915 | $2.69 | 111,339 (Direct) | View |
| 2025-05-19 Exercise | 2025-05-21 5:52 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 4,913 | $0 | 111,339 (Direct) | View |
| 2025-05-19 Tax Withholding | 2025-05-21 5:50 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 4,356 | $2.69 | 6,258,541 (Direct) | View |
| 2025-05-19 Exercise | 2025-05-21 5:50 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 14,680 | $0 | 6,258,541 (Direct) | View |
| 2025-05-19 Exercise | 2025-05-21 5:48 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Holder Michael Director | 1,454 | $0 | 26,178 (Direct) | View |
| 2025-03-10 Tax Withholding | 2025-03-12 5:55 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 5,929 | $4.36 | 195,653 (Direct) | View |
| 2025-03-10 Exercise | 2025-03-12 5:55 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 15,221 | $0 | 195,653 (Direct) | View |
| 2025-03-10 Tax Withholding | 2025-03-12 5:53 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 1,947 | $4.36 | 55,250 (Direct) | View |
| 2025-03-10 Exercise | 2025-03-12 5:53 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 4,995 | $0 | 55,250 (Direct) | View |
| 2025-03-10 Tax Withholding | 2025-03-12 5:51 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 12,656 | $4.36 | 5,584,370 (Direct) | View |
| 2025-03-10 Exercise | 2025-03-12 5:51 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 45,175 | $0 | 5,584,370 (Direct) | View |
| 2025-03-10 Tax Withholding | 2025-03-12 5:49 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 5,096 | $4.36 | 6,157,015 (Direct) | View |
| 2025-03-10 Exercise | 2025-03-12 5:49 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 17,183 | $0 | 6,157,015 (Direct) | View |
| 2025-03-10 Exercise | 2025-03-12 5:47 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Holder Michael Director | 2,908 | $0 | 26,178 (Direct) | View |
| 2025-03-04 Option Award | 2025-03-06 5:58 pm | N/A 2035-03-04 | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 254,857 | $0 | 254,857 (Direct) | View |
| 2025-03-04 Option Award | 2025-03-06 5:56 pm | N/A 2035-03-04 | Cytek Biosciences Inc. | CTKB | McCombe William D. Chief Financial Officer | 539,698 | $0 | 539,698 (Direct) | View |
| 2025-03-04 Option Award | 2025-03-06 5:55 pm | N/A 2035-03-04 | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 1,199,331 | $0 | 1,199,331 (Direct) | View |
| 2025-03-04 Option Award | 2025-03-06 5:52 pm | N/A 2035-03-04 | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 149,915 | $0 | 149,915 (Direct) | View |
| 2025-03-04 Option Award | 2025-03-06 5:50 pm | N/A 2035-03-04 | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 449,748 | $0 | 449,748 (Direct) | View |
| 2025-02-18 Tax Withholding | 2025-02-20 6:12 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 786 | $5.31 | 71,474 (Direct) | View |
| 2025-02-18 Exercise | 2025-02-20 6:12 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 2,016 | $0 | 71,474 (Direct) | View |
| 2025-02-18 Tax Withholding | 2025-02-20 6:11 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 588 | $5.31 | 6,026,990 (Direct) | View |
| 2025-02-18 Exercise | 2025-02-20 6:11 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 1,981 | $0 | 6,026,990 (Direct) | View |
| 2025-02-18 Tax Withholding | 2025-02-20 6:09 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 2,004 | $5.31 | 5,217,180 (Direct) | View |
| 2025-02-18 Exercise | 2025-02-20 6:09 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 6,758 | $0 | 5,217,180 (Direct) | View |
| 2024-11-18 Tax Withholding | 2024-11-20 6:25 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 1,460 | $6.03 | 57,197 (Direct) | View |
| 2024-11-18 Exercise | 2024-11-20 6:25 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 3,746 | $0 | 57,197 (Direct) | View |
| 2024-11-18 Tax Withholding | 2024-11-20 6:23 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 4,499 | $6.03 | 209,762 (Direct) | View |
| 2024-11-18 Exercise | 2024-11-20 6:23 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 13,432 | $0 | 209,762 (Direct) | View |
| 2024-11-18 Tax Withholding | 2024-11-20 6:21 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 9,897 | $6.03 | 5,623,818 (Direct) | View |
| 2024-11-18 Exercise | 2024-11-20 6:21 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 40,639 | $0 | 5,623,818 (Direct) | View |
| 2024-11-18 Tax Withholding | 2024-11-20 6:19 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Poirson Allen SVP BUS. AND CORP. DEV. | 2,015 | $6.03 | 112,090 (Direct) | View |
| 2024-11-18 Exercise | 2024-11-20 6:19 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Poirson Allen SVP BUS. AND CORP. DEV. | 5,171 | $0 | 112,090 (Direct) | View |
| 2024-11-18 Tax Withholding | 2024-11-20 6:18 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 3,622 | $6.03 | 6,169,974 (Direct) | View |
| 2024-11-18 Exercise | 2024-11-20 6:18 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 14,869 | $0 | 6,169,974 (Direct) | View |
| 2024-11-18 Exercise | 2024-11-20 6:16 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Holder Michael Director | 2,181 | $0 | 26,178 (Direct) | View |
| 2024-09-14 Gift | 2024-09-16 6:26 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 200,000 | $0 | 5,156,896 (Direct) | View |
| 2024-08-19 Exercise | 2024-08-21 6:28 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Holder Michael Director | 1,454 | $0 | 26,178 (Direct) | View |
| 2024-08-19 Tax Withholding | 2024-08-21 6:26 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 5,046 | $5.53 | 214,261 (Direct) | View |
| 2024-08-19 Exercise | 2024-08-21 6:26 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Barnett Valerie CHIEF LEGAL OFFICER | 13,432 | $0 | 214,261 (Direct) | View |
| 2024-08-19 Tax Withholding | 2024-08-21 6:24 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 9,897 | $5.53 | 5,833,715 (Direct) | View |
| 2024-08-19 Exercise | 2024-08-21 6:24 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin PRESIDENT AND CEO | 40,639 | $0 | 5,833,715 (Direct) | View |
| 2024-08-19 Tax Withholding | 2024-08-21 6:22 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 3,731 | $5.53 | 6,173,596 (Direct) | View |
| 2024-08-19 Exercise | 2024-08-21 6:22 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Yan Ming CHIEF TECHNOLOGY OFFICER | 14,869 | $0 | 6,173,596 (Direct) | View |
| 2024-08-19 Tax Withholding | 2024-08-21 6:21 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Williams Paul Christopher CHIEF OPERATING OFFICER | 4,195 | $5.53 | 161,758 (Direct) | View |
| 2024-08-19 Exercise | 2024-08-21 6:21 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Williams Paul Christopher CHIEF OPERATING OFFICER | 10,766 | $0 | 161,758 (Direct) | View |
| 2024-08-19 Tax Withholding | 2024-08-21 6:19 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Poirson Allen SVP BUS. AND CORP. DEV. | 2,015 | $5.53 | 114,105 (Direct) | View |
| 2024-08-19 Exercise | 2024-08-21 6:19 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Poirson Allen SVP BUS. AND CORP. DEV. | 5,171 | $0 | 114,105 (Direct) | View |
| 2024-08-19 Tax Withholding | 2024-08-21 6:15 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 1,460 | $5.53 | 58,657 (Direct) | View |
| 2024-08-19 Exercise | 2024-08-21 6:15 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Busque Philippe SVP, GLOBAL SALES AND SERVICES | 3,746 | $0 | 58,657 (Direct) | View |
| 2024-06-05 Option Award | 2024-06-07 7:09 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Holder Michael Director | 64,056 | $0 | 64,056 (Direct) | View |