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 |
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 |
2022-08-01 Sale |
2022-08-03 5:49 pm |
Cytek Biosciences Inc. | CTKB | Jeanmonod Patrik Chief Financial Officer |
3,500 | $12.8 | $44,800 | 94,994 (Direct) |
View |
2022-07-19 Sale |
2022-07-20 6:14 pm |
Cytek Biosciences Inc. | CTKB | Yan Ming Chief Technology Officer |
20,000 | $11.83 | $236,600 | 8,064,415 (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 |
2022-06-21 Sale |
2022-06-22 7:07 pm |
Cytek Biosciences Inc. | CTKB | Yan Ming Chief Technology Officer |
20,000 | $10.06 | $201,200 | 8,084,415 (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 |
2022-05-19 Sale |
2022-05-20 7:19 pm |
Cytek Biosciences Inc. | CTKB | Yan Ming Chief Technology Officer |
20,000 | $9.92 | $198,400 | 8,133,481 (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 |
2022-04-19 Sale |
2022-04-21 8:58 pm |
Cytek Biosciences Inc. | CTKB | Yan Ming Chief Technology Officer |
20,000 | $10.34 | $206,800 | 8,122,803 (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 |
2022-03-21 Sale |
2022-03-23 6:03 pm |
Cytek Biosciences Inc. | CTKB | Yan Ming Chief Technology Officer |
20,000 | $11.64 | $232,800 | 8,142,803 (Direct) |
View |
2022-03-14 Purchase |
2022-03-16 5:10 pm |
Cytek Biosciences Inc. | CTKB | RA CAPITAL MANAGEMENT L.P. RA Capital Healthcare Fund LP RA Capital Nexus Fund II L.P. Kolchinsky Peter Shah Rajeev M. Director 10% Owner |
583,870 | $12.31 | $7,188,926 | 13,381,054 (Indirect) |
View |
2022-03-09 Purchase |
2022-03-11 5:27 pm |
Cytek Biosciences Inc. | CTKB | RA CAPITAL MANAGEMENT L.P. RA Capital Healthcare Fund LP RA Capital Nexus Fund II L.P. Kolchinsky Peter Shah Rajeev M. Director |
634,638 | $12.86 | $8,158,671 | 12,797,184 (Indirect) |
View |
2022-03-07 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 |
2022-03-04 Purchase |
2022-03-08 4:59 pm |
Cytek Biosciences Inc. | CTKB | RA CAPITAL MANAGEMENT L.P. RA Capital Healthcare Fund LP RA Capital Nexus Fund II L.P. Kolchinsky Peter Shah Rajeev M. Director |
647,264 | $12.74 | $8,248,255 | 12,162,546 (Indirect) |
View |
2022-02-28 Purchase |
2022-03-02 5:29 pm |
Cytek Biosciences Inc. | CTKB | RA CAPITAL MANAGEMENT L.P. RA Capital Healthcare Fund LP RA Capital Nexus Fund II L.P. Kolchinsky Peter Shah Rajeev M. Director |
441,865 | $12.95 | $5,721,951 | 11,515,282 (Indirect) |
View |
2022-02-23 Purchase |
2022-02-25 5:43 pm |
Cytek Biosciences Inc. | CTKB | RA CAPITAL MANAGEMENT L.P. RA Capital Healthcare Fund LP RA Capital Nexus Fund II L.P. Kolchinsky Peter Shah Rajeev M. Director |
420,380 | $13.23 | $5,559,664 | 11,073,417 (Indirect) |
View |
2022-02-22 Sale |
2022-02-24 5:41 pm |
Cytek Biosciences Inc. | CTKB | Yan Ming Chief Technology Officer |
20,000 | $13.44 | $268,800 | 8,089,792 (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 |
2022-08-18 Tax Withholding |
2022-08-19 7:33 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Jeanmonod Patrik Chief Financial Officer |
683 | $14.06 | 120,017 (Direct) |
View |
2022-08-18 Exercise |
2022-08-19 7:33 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Jeanmonod Patrik Chief Financial Officer |
1,752 | $0 | 120,017 (Direct) |
View |
2022-08-18 Tax Withholding |
2022-08-19 7:30 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Barnett Valerie General Counsel |
786 | $14.06 | 45,435 (Direct) |
View |
2022-08-18 Exercise |
2022-08-19 7:30 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Barnett Valerie General Counsel |
2,016 | $0 | 45,435 (Direct) |
View |
2022-06-01 Option Award |
2022-06-03 5:38 pm |
2023-06-01 2032-06-01 |
Cytek Biosciences Inc. | CTKB | Ball Jack Director |
25,789 | $0 | 25,789 (Direct) |
View |
2022-06-01 Option Award |
2022-06-03 5:36 pm |
2023-06-01 2032-06-01 |
Cytek Biosciences Inc. | CTKB | Dion Gisele Director |
25,789 | $0 | 25,789 (Direct) |
View |
2022-06-01 Option Award |
2022-06-03 5:35 pm |
2023-06-01 2032-06-01 |
Cytek Biosciences Inc. | CTKB | Imper Vera Director |
25,789 | $0 | 25,789 (Direct) |
View |
2022-06-01 Option Award |
2022-06-03 5:32 pm |
N/A 2032-06-01 |
Cytek Biosciences Inc. | CTKB | HARDISON DON M Director |
47,013 | $0 | 47,013 (Direct) |
View |
2022-06-01 Option Award |
2022-06-03 5:26 pm |
N/A 2032-06-01 |
Cytek Biosciences Inc. | CTKB | NEFF DEBORAH J Director |
47,013 | $0 | 47,013 (Direct) |
View |
2022-05-18 Tax Withholding |
2022-05-20 7:19 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Yan Ming Chief Technology Officer |
1,030 | $9.65 | 8,133,481 (Direct) |
View |
2022-05-18 Exercise |
2022-05-20 7:19 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Yan Ming Chief Technology Officer |
2,642 | $0 | 8,133,481 (Direct) |
View |
2022-05-18 Tax Withholding |
2022-05-20 7:17 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Marketing and Corp. Dev. |
411 | $9.65 | 52,618 (Direct) |
View |
2022-05-18 Exercise |
2022-05-20 7:17 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Marketing and Corp. Dev. |
1,053 | $0 | 52,618 (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 |
2022-05-18 Tax Withholding |
2022-05-20 7:12 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Jeanmonod Patrik Chief Financial Officer |
910 | $9.65 | 123,129 (Direct) |
View |
2022-05-18 Exercise |
2022-05-20 7:12 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Jeanmonod Patrik Chief Financial Officer |
2,336 | $0 | 123,129 (Direct) |
View |
2022-05-18 Tax Withholding |
2022-05-20 7:09 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Barnett Valerie General Counsel |
1,047 | $9.65 | 43,611 (Direct) |
View |
2022-05-18 Exercise |
2022-05-20 7:09 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Barnett Valerie General Counsel |
2,688 | $0 | 43,611 (Direct) |
View |
2022-04-25 Option Award |
2022-04-27 8:07 pm |
N/A 2032-04-25 |
Cytek Biosciences Inc. | CTKB | Garland Jonathan Todd Chief Commercial Officer |
78,188 | $0 | 78,188 (Direct) |
View |
2022-03-07 Exercise |
2022-03-08 5:57 pm |
2021-06-28 2027-06-28 |
Cytek Biosciences Inc. | CTKB | Yan Ming Chief Technology Officer |
73,011 | $0 | 8,178,914 (Direct) |
View |
2022-03-07 Exercise |
2022-03-08 5:57 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Yan Ming Chief Technology Officer |
10,555 | $0.92 | 8,178,914 (Direct) |
View |
2022-03-07 Exercise |
2022-03-08 5:57 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Yan Ming Chief Technology Officer |
62,456 | $0.25 | 8,178,914 (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 |
2022-03-04 Exercise |
2022-03-08 5:51 pm |
N/A 2031-03-22 |
Cytek Biosciences Inc. | CTKB | Barnett Valerie General Counsel |
10,500 | $0 | 135,230 (Direct) |
View |
2022-03-04 Exercise |
2022-03-08 5:51 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Barnett Valerie General Counsel |
10,500 | $4.71 | 135,230 (Direct) |
View |
2022-02-28 Option Award |
2022-03-02 6:02 pm |
N/A 2032-02-28 |
Cytek Biosciences Inc. | CTKB | Yan Ming Chief Technology Officer |
79,549 | $0 | 79,549 (Direct) |
View |
2022-02-28 Option Award |
2022-03-02 6:00 pm |
N/A 2032-02-28 |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Marketing and Corp. Dev. |
31,727 | $0 | 31,727 (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 |
2022-02-28 Option Award |
2022-03-02 5:54 pm |
N/A 2032-02-28 |
Cytek Biosciences Inc. | CTKB | Jeanmonod Patrik Chief Financial Officer |
70,352 | $0 | 70,352 (Direct) |
View |
2022-02-28 Option Award |
2022-03-02 5:51 pm |
N/A 2032-02-28 |
Cytek Biosciences Inc. | CTKB | Barnett Valerie General Counsel |
80,929 | $0 | 80,929 (Direct) |
View |