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 |
2023-01-09 Sale | 2023-01-10 6:26 pm | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 20,000 | $10.66 | $213,200 | 7,740,314 (Direct) | View |
2022-12-07 Sale | 2022-12-09 5:57 pm | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 20,000 | $11.86 | $237,200 | 7,760,314 (Direct) | View |
2022-11-07 Sale | 2022-11-08 5:44 pm | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 20,000 | $14.76 | $295,200 | 7,785,820 (Direct) | View |
2022-10-07 Sale | 2022-10-11 5:42 pm | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 20,000 | $14.79 | $295,800 | 7,805,820 (Direct) | View |
2022-09-07 Sale | 2022-09-09 8:06 pm | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 20,000 | $12.89 | $257,800 | 7,825,820 (Direct) | View |
2022-08-08 Sale | 2022-08-10 5:59 pm | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 20,000 | $15.09 | $301,800 | 7,841,541 (Direct) | View |
2022-07-07 Sale | 2022-07-08 5:59 pm | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 20,000 | $11.19 | $223,800 | 7,861,541 (Direct) | View |
2022-06-07 Sale | 2022-06-09 8:08 pm | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 20,000 | $10.75 | $215,000 | 7,881,541 (Direct) | View |
2022-05-09 Sale | 2022-05-12 09:18 am | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 20,000 | $8.01 | $160,200 | 7,896,040 (Direct) | View |
2022-04-07 Sale | 2022-04-08 5:33 pm | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 20,000 | $10.54 | $210,800 | 7,916,040 (Direct) | View |
2022-03-04 Sale | 2022-03-08 5:55 pm | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 20,000 | $12.65 | $253,052 | 7,936,040 (Direct) | View |
2022-02-07 Sale | 2022-02-09 5:52 pm | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 20,000 | $14.4 | $288,000 | 7,889,375 (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 |
2022-12-07 Gift | 2022-12-09 5:57 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 10,000 | $0 | 7,760,314 (Direct) | View |
2022-11-18 Exercise | 2022-11-22 6:18 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 6,758 | $0 | 7,875,924 (Direct) | View |
2022-11-18 Tax Withholding | 2022-11-22 6:18 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 2,264 | $14.75 | 7,875,924 (Direct) | View |
2022-08-18 Exercise | 2022-08-19 7:37 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 6,758 | $0 | 7,938,188 (Direct) | View |
2022-08-18 Tax Withholding | 2022-08-19 7:37 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 2,479 | $14.06 | 7,938,188 (Direct) | View |
2022-05-18 Tax Withholding | 2022-05-20 7:15 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 3,510 | $9.65 | 8,000,667 (Direct) | View |
2022-05-18 Exercise | 2022-05-20 7:15 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 9,011 | $0 | 8,000,667 (Direct) | View |
2022-03-04 Exercise | 2022-03-08 5:55 pm | 2021-06-28 2022-06-28 | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 66,665 | $0 | 7,936,040 (Direct) | View |
2022-03-04 Exercise | 2022-03-08 5:55 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 66,665 | $0.25 | 7,936,040 (Direct) | View |
2022-02-28 Option Award | 2022-03-02 5:57 pm | N/A 2032-02-28 | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 271,295 | $0 | 271,295 (Direct) | View |
2022-02-07 Gift | 2022-02-09 5:52 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 5,000 | $0 | 7,889,375 (Direct) | View |
2021-07-22 Conversion | 2021-07-27 8:55 pm | N/A N/A | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 2,666,600 | $0 | 2,666,600 (Indirect) | View |
2021-07-22 Option Award | 2021-07-26 9:46 pm | N/A 2031-07-22 | Cytek Biosciences Inc. | CTKB | Jiang Wenbin President and CEO | 250,000 | $0 | 250,000 (Direct) | View |
2021-07-22 Ownership | 2021-07-22 8:57 pm | N/A N/A | Cytek BioSciences Inc. | CTKB | Jiang Wenbin President and CEO | 0 | $0 | 10,687,639 (Direct) | View |