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 |
2021-07-22 Purchase |
2021-07-27 8:59 pm |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Marketing and Corp. Dev. |
1,500 | $17 | $25,500 | 40,383 (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 |
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 6:19 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP BUS. AND CORP. DEV. |
2,015 | $6.03 | 112,090 (Direct) |
View |
2024-08-19 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 6:19 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP BUS. AND CORP. DEV. |
2,015 | $5.53 | 114,105 (Direct) |
View |
2024-05-20 Exercise |
2024-05-22 6:41 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP BUS. AND CORP. DEV. |
3,711 | $0 | 116,120 (Direct) |
View |
2024-05-20 Tax Withholding |
2024-05-22 6:41 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP BUS. AND CORP. DEV. |
1,447 | $5.96 | 116,120 (Direct) |
View |
2024-03-11 Exercise |
2024-03-13 6:50 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP BUS. AND CORP. DEV. |
3,338 | $0 | 81,098 (Direct) |
View |
2024-03-11 Tax Withholding |
2024-03-13 6:50 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP BUS. AND CORP. DEV. |
1,301 | $7.22 | 81,098 (Direct) |
View |
2024-03-06 Option Award |
2024-03-08 6:49 pm |
N/A 2034-03-06 |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP BUS. AND CORP. DEV. |
74,792 | $0 | 74,792 (Direct) |
View |
2024-02-20 Exercise |
2024-02-22 5:32 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP BUS. AND CORP. DEV. |
790 | $0 | 55,081 (Direct) |
View |
2024-02-20 Tax Withholding |
2024-02-22 5:32 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP BUS. AND CORP. DEV. |
308 | $8.38 | 55,081 (Direct) |
View |
2023-11-18 Exercise |
2023-11-21 5:54 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Bus. and Corp. Dev. |
3,293 | $0 | 88,770 (Direct) |
View |
2023-11-18 Tax Withholding |
2023-11-21 5:54 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Bus. and Corp. Dev. |
1,283 | $5.98 | 88,770 (Direct) |
View |
2023-08-18 Tax Withholding |
2023-08-21 8:12 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Bus. and Corp. Dev. |
1,283 | $8.46 | 90,053 (Direct) |
View |
2023-08-18 Exercise |
2023-08-21 8:12 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Bus. and Corp. Dev. |
3,293 | $0 | 90,053 (Direct) |
View |
2023-05-18 Exercise |
2023-05-19 6:54 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Bus. and Corp. Dev. |
2,459 | $0 | 91,028 (Direct) |
View |
2023-05-18 Tax Withholding |
2023-05-19 6:54 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Bus. and Corp. Dev. |
959 | $6.69 | 91,028 (Direct) |
View |
2023-03-03 Option Award |
2023-03-07 7:50 pm |
N/A 2033-03-03 |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Bus. and Corp. Dev. |
100,597 | $0 | 100,597 (Direct) |
View |
2023-02-21 Exercise |
2023-02-23 6:45 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Bus. and Corp. Dev. |
790 | $0 | 51,931 (Direct) |
View |
2023-02-21 Tax Withholding |
2023-02-23 6:45 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Bus. and Corp. Dev. |
308 | $10.97 | 51,931 (Direct) |
View |
2022-11-18 Tax Withholding |
2022-11-22 6:02 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Bus. and Corp. Dev. |
308 | $14.75 | 52,002 (Direct) |
View |
2022-11-18 Exercise |
2022-11-22 6:02 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Bus. and Corp. Dev. |
790 | $0 | 52,002 (Direct) |
View |
2022-08-18 Exercise |
2022-08-19 7:39 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Marketing and Corp. Dev. |
790 | $0 | 52,310 (Direct) |
View |
2022-08-18 Tax Withholding |
2022-08-19 7:39 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Marketing and Corp. Dev. |
308 | $14.06 | 52,310 (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 7:17 pm |
N/A N/A |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Marketing and Corp. Dev. |
411 | $9.65 | 52,618 (Direct) |
View |
2022-02-28 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 |
2021-07-22 Option Award |
2021-07-26 9:49 pm |
N/A 2031-07-22 |
Cytek Biosciences Inc. | CTKB | Poirson Allen SVP Marketing and Corp. Dev. |
75,000 | $0 | 75,000 (Direct) |
View |
Ownership |
2021-07-22 9:13 pm |
N/A N/A |
Cytek BioSciences Inc. | CTKB | Poirson Allen SVP Marketing and Corp. Dev. |
0 | $0 | 199,995 (Direct) |
View |