Cytek Biosciences, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Yan Ming | Chief Technology Officer | Sale | 20,000 | $8.18 | $163,600 | 7,850,258 | Jun 20, 2023 |
| Jiang Wenbin | President and CEO | Sale | 20,000 | $8.23 | $164,600 | 7,653,467 | Jun 7, 2023 |
| Jeanmonod Patrik | Chief Financial Officer | Sale | 3,000 | $7.76 | $23,280 | 107,768 | May 24, 2023 |
| Yan Ming | Chief Technology Officer | Option Exercise | 4,908 | — | — | 7,892,170 | May 18, 2023 |
| Barnett Valerie | General Counsel | Tax Withholding | 786 | $6.69 | $5,258 | 21,572 | May 18, 2023 |
| Williams Paul Christopher | Chief Operating Officer | Option Exercise | 613 | — | — | 613 | May 18, 2023 |
| Jeanmonod Patrik | Chief Financial Officer | Tax Withholding | 683 | $6.69 | $4,569 | 109,270 | May 18, 2023 |
| Jiang Wenbin | President and CEO | Tax Withholding | 2,951 | $6.69 | $19,742 | 7,673,467 | May 18, 2023 |
| Garland Jonathan Todd | Chief Commercial Officer | Option Exercise | 1,840 | — | — | 6,604 | May 18, 2023 |
| Poirson Allen | SVP Bus. and Corp. Dev. | Option Exercise | 790 | — | — | 43,498 | May 18, 2023 |
| Jiang Wenbin | President and CEO | Sale | 20,000 | $11.55 | $231,000 | 7,664,439 | May 8, 2023 |
| Jeanmonod Patrik | Chief Financial Officer | Sale | 3,000 | $10.24 | $30,720 | 108,201 | Apr 24, 2023 |
| Yan Ming | Chief Technology Officer | Sale | 20,000 | $9.71 | $194,200 | 7,886,053 | Apr 19, 2023 |
| Jiang Wenbin | President and CEO | Sale | 20,000 | $8.88 | $177,600 | 7,684,439 | Apr 10, 2023 |
| Jeanmonod Patrik | Chief Financial Officer | Sale | 3,000 | $8.33 | $24,990 | 111,201 | Mar 24, 2023 |
| Yan Ming | Chief Technology Officer | Sale | 20,000 | $9.29 | $185,800 | 7,906,053 | Mar 20, 2023 |
| Jiang Wenbin | President and CEO | Sale | 20,000 | $10.13 | $202,600 | 7,704,439 | Mar 7, 2023 |
| Jeanmonod Patrik | Chief Financial Officer | Sale | 3,000 | $11.05 | $33,150 | 114,201 | Feb 24, 2023 |
| Yan Ming | Chief Technology Officer | Option Exercise | 1,981 | — | — | 7,946,825 | Feb 21, 2023 |
| Poirson Allen | SVP Bus. and Corp. Dev. | Tax Withholding | 308 | $10.97 | $3,379 | 42,708 | Feb 21, 2023 |
| Jiang Wenbin | President and CEO | Tax Withholding | 2,633 | $10.97 | $28,884 | 7,724,439 | Feb 21, 2023 |
| Barnett Valerie | General Counsel | Tax Withholding | 786 | $10.97 | $8,622 | 20,342 | Feb 21, 2023 |
| Jeanmonod Patrik | Chief Financial Officer | Tax Withholding | 683 | $10.97 | $7,493 | 117,201 | Feb 21, 2023 |
| Yan Ming | Chief Technology Officer | Sale | 897 | $13.53 | $12,136 | 7,944,844 | Feb 8, 2023 |
| Jiang Wenbin | President and CEO | Sale | 20,000 | $13.19 | $263,800 | 7,720,314 | Feb 7, 2023 |
| Yan Ming | Chief Technology Officer | Sale | 1,081 | $13.50 | $14,594 | 7,945,752 | Feb 3, 2023 |
| Jeanmonod Patrik | Chief Financial Officer | Sale | 3,500 | $11.05 | $38,675 | 76,132 | Jan 24, 2023 |
| Yan Ming | Chief Technology Officer | Sale | 20,000 | $11.03 | $220,600 | 7,946,833 | Jan 19, 2023 |
| Jiang Wenbin | President and CEO | Sale | 20,000 | $10.66 | $213,200 | 7,740,314 | Jan 9, 2023 |
| Jeanmonod Patrik | Chief Financial Officer | Sale | 3,500 | $9.77 | $34,195 | 79,632 | Dec 27, 2022 |
| Yan Ming | Chief Technology Officer | Sale | 20,000 | $10.38 | $207,600 | 7,966,833 | Dec 19, 2022 |
| Ball Jack | — | Option Exercise | 10,666 | $0.40 | $4,266 | 13,666 | Nov 29, 2022 |
| Jiang Wenbin | President and CEO | Sale | 20,000 | $11.86 | $237,200 | 7,760,314 | Nov 29, 2022 |
| Jeanmonod Patrik | Chief Financial Officer | Sale | 3,500 | $14.30 | $50,050 | 83,132 | Nov 25, 2022 |
| Poirson Allen | SVP Bus. and Corp. Dev. | Option Exercise | 790 | — | — | 42,297 | Nov 18, 2022 |
| Jeanmonod Patrik | Chief Financial Officer | Tax Withholding | 683 | $14.75 | $10,074 | 86,632 | Nov 18, 2022 |
| Barnett Valerie | General Counsel | Option Exercise | 2,016 | — | — | 19,897 | Nov 18, 2022 |
| Yan Ming | Chief Technology Officer | Sale | 20,000 | $14.66 | $293,200 | 7,986,833 | Nov 18, 2022 |
| Jiang Wenbin | President and CEO | Tax Withholding | 2,264 | $14.75 | $33,394 | 7,790,314 | Nov 18, 2022 |
| Ball Jack | — | Sale | 16,000 | $14.69 | $235,040 | 3,000 | Nov 14, 2022 |
| Jiang Wenbin | President and CEO | Sale | 20,000 | $14.76 | $295,200 | 7,785,820 | Nov 7, 2022 |
| Jeanmonod Patrik | Chief Financial Officer | Sale | 3,500 | $15.16 | $53,060 | 85,563 | Oct 24, 2022 |
| Yan Ming | Chief Technology Officer | Sale | 20,000 | $14.42 | $288,400 | 8,005,624 | Oct 19, 2022 |
| Jiang Wenbin | President and CEO | Sale | 20,000 | $14.79 | $295,800 | 7,805,820 | Oct 7, 2022 |
| Jeanmonod Patrik | Chief Financial Officer | Sale | 3,500 | $12.63 | $44,205 | 89,063 | Sep 26, 2022 |
| Yan Ming | Chief Technology Officer | Sale | 20,000 | $12.42 | $248,400 | 8,025,624 | Sep 19, 2022 |
| Jeanmonod Patrik | Chief Financial Officer | Option Exercise | 40,000 | $0.40 | $16,000 | 116,132 | Sep 8, 2022 |
| Jiang Wenbin | President and CEO | Sale | 20,000 | $12.89 | $257,800 | 7,825,820 | Sep 7, 2022 |
| Jeanmonod Patrik | Chief Financial Officer | Sale | 3,500 | $13.45 | $47,075 | 92,563 | Aug 24, 2022 |
| Barnett Valerie | General Counsel | Tax Withholding | 786 | $14.06 | $11,051 | 17,881 | Aug 18, 2022 |