Cytek Biosciences, Inc.
Total Trades
86
Buys
8
Sells
69
Largest Trade
N/A
Insiders
6
Institutional Funds
124
Inst. Value
$1M+
Activist Filings
28
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| McCombe William D. | CFO | BUY | $50K–$100K | 35K | $2.78 | Jun 3, 2025 |
| Yan Ming | CHIEF TECHNOLOGY O… | SELL | $100K–$500K | 20K | $5.87 | Apr 23, 2024 |
| Yan Ming | CHIEF TECHNOLOGY O… | SELL | $1K–$15K | 2K | $7.00 | Apr 11, 2024 |
| Jeanmonod Patrik | CFO | SELL | $15K–$50K | 3K | $9.50 | Dec 27, 2023 |
| Yan Ming | CTO | SELL | $100K–$500K | 20K | $9.43 | Dec 21, 2023 |
| Jeanmonod Patrik | CFO | SELL | $15K–$50K | 3K | $6.94 | Nov 28, 2023 |
| Yan Ming | CTO | SELL | $100K–$500K | 20K | $6.03 | Nov 21, 2023 |
| Yan Ming | CTO | EXERCISE | N/A | 9K | — | Nov 21, 2023 |
| Jiang Wenbin | President and CEO | SELL | $50K–$100K | 20K | $4.34 | Nov 8, 2023 |
| Jeanmonod Patrik | CFO | SELL | $1K–$15K | 3K | $4.68 | Oct 25, 2023 |
| Yan Ming | CTO | SELL | $50K–$100K | 20K | $4.80 | Oct 24, 2023 |
| Jiang Wenbin | President and CEO | SELL | $100K–$500K | 20K | $5.33 | Oct 11, 2023 |
| Jeanmonod Patrik | CFO | SELL | $15K–$50K | 3K | $6.38 | Sep 26, 2023 |
| Yan Ming | CTO | SELL | $100K–$500K | 20K | $6.49 | Sep 20, 2023 |
| Jiang Wenbin | President and CEO | SELL | $100K–$500K | 20K | $6.83 | Sep 8, 2023 |
| Jeanmonod Patrik | CFO | SELL | $15K–$50K | 3K | $7.69 | Aug 28, 2023 |
| Yan Ming | CTO | SELL | $100K–$500K | 20K | $8.07 | Aug 22, 2023 |
| Yan Ming | CTO | EXERCISE | N/A | 9K | — | Aug 22, 2023 |
| Jiang Wenbin | President and CEO | SELL | $100K–$500K | 20K | $9.04 | Aug 9, 2023 |
| Jeanmonod Patrik | CFO | SELL | $15K–$50K | 3K | $9.17 | Jul 25, 2023 |
| Yan Ming | CTO | SELL | $100K–$500K | 20K | $8.76 | Jul 20, 2023 |
| Jiang Wenbin | President and CEO | SELL | $100K–$500K | 20K | $8.48 | Jul 8, 2023 |
| Jeanmonod Patrik | CFO | SELL | $15K–$50K | 3K | $7.96 | Jun 27, 2023 |
| Yan Ming | CTO | SELL | $100K–$500K | 20K | $8.18 | Jun 21, 2023 |
| Jiang Wenbin | President and CEO | SELL | $100K–$500K | 20K | $8.23 | Jun 7, 2023 |
| Jeanmonod Patrik | CFO | SELL | $15K–$50K | 3K | $7.76 | May 25, 2023 |
| Yan Ming | CTO | SELL | $100K–$500K | 20K | $7.19 | May 20, 2023 |
| Yan Ming | CTO | EXERCISE | N/A | 7K | — | May 20, 2023 |
| Jiang Wenbin | President and CEO | SELL | $100K–$500K | 20K | $11.55 | May 10, 2023 |
| Jeanmonod Patrik | CFO | SELL | $15K–$50K | 3K | $10.24 | Apr 25, 2023 |
| Yan Ming | CTO | SELL | $100K–$500K | 20K | $9.71 | Apr 20, 2023 |
| Jiang Wenbin | President and CEO | SELL | $100K–$500K | 20K | $8.88 | Apr 11, 2023 |
| Jeanmonod Patrik | CFO | SELL | $15K–$50K | 3K | $8.33 | Mar 25, 2023 |
| Yan Ming | CTO | SELL | $100K–$500K | 20K | $9.29 | Mar 21, 2023 |
| Jiang Wenbin | President and CEO | SELL | $100K–$500K | 20K | $10.13 | Mar 8, 2023 |
| Jeanmonod Patrik | CFO | SELL | $15K–$50K | 3K | $11.05 | Feb 28, 2023 |
| Yan Ming | CTO | SELL | $100K–$500K | 20K | $10.94 | Feb 23, 2023 |
| Yan Ming | CTO | EXERCISE | N/A | 2K | — | Feb 23, 2023 |
| Yan Ming | CTO | SELL | $1K–$15K | 897 | $13.53 | Feb 10, 2023 |
| Jiang Wenbin | President and CEO | SELL | $100K–$500K | 20K | $13.19 | Feb 9, 2023 |
| Yan Ming | CTO | SELL | $1K–$15K | 1K | $13.50 | Feb 7, 2023 |
| Jeanmonod Patrik | CFO | SELL | $15K–$50K | 4K | $11.05 | Jan 26, 2023 |
| Yan Ming | CTO | SELL | $100K–$500K | 20K | $11.03 | Jan 20, 2023 |
| Jiang Wenbin | President and CEO | SELL | $100K–$500K | 20K | $10.66 | Jan 10, 2023 |
| Jeanmonod Patrik | CFO | SELL | $15K–$50K | 4K | $9.77 | Dec 29, 2022 |
| Yan Ming | CTO | SELL | $100K–$500K | 20K | $10.38 | Dec 21, 2022 |
| Jiang Wenbin | President and CEO | SELL | $100K–$500K | 20K | $11.86 | Dec 9, 2022 |
| Jeanmonod Patrik | CFO | SELL | $50K–$100K | 4K | $14.30 | Nov 28, 2022 |
| Yan Ming | CTO | EXERCISE | N/A | 2K | — | Nov 22, 2022 |
| Yan Ming | CTO | SELL | $100K–$500K | 20K | $14.66 | Nov 22, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 124 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| VANGUARD GROUP INC | 6.7M | $1M+ | SH |
| HHLR ADVISORS, LTD. | 6.7M | $1M+ | SH |
| Boston Partners | 5.0M | $1M+ | SH |
| STATE STREET CORP | 4.1M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 2.5M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4M | $1M+ | SH |
| BROWN CAPITAL MANAGEMENT LLC | 2.1M | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 1.7M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.1M | $1M+ | SH |
| M&T BANK CORP | 41K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 675K | $1M+ | SH |
| ACADIAN ASSET MANAGEMENT LLC | 674K | $1M+ | SH |
| HRT FINANCIAL LP | 438K | $1M+ | SH |
| PUBLIC SECTOR PENSION INVESTMENT BOARD | 379K | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 362K | $1M+ | SH |
| Bank of New York Mellon Corp | 304K | $1M+ | SH |
| Simcoe Capital LLC | 298K | $1M+ | SH |
| Connor, Clark & Lunn Investment Management Ltd. | 296K | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 285K | $1M+ | SH |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 264K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Topline Capital Management, LLC
SC 13G · Nov 17, 2025
5.3%
6.8M shares
SC 13G/A · Nov 12, 2025
3.9%
5.0M shares
SC 13G/A · Jul 29, 2025
6.1%
7.8M shares
SC 13G/A · Jul 18, 2025
13.1%
16.5M shares
SC 13G/A · May 15, 2025
5.9%
7.5M shares
SC 13G/A · Apr 30, 2025
7.5%
9.6M shares
SC 13G/A · Feb 14, 2025
0.0%
0 shares
SC 13G/A · Feb 5, 2025
14.3%
18.5M shares
Hillhouse Investment Management, Ltd.
SC 13G · Nov 14, 2024
5.1%
6.7M shares
SC 13G/A · Nov 14, 2024
7.2%
9.5M shares
SC 13G · Feb 23, 2024
5.2%
6.8M shares
SC 13G/A · Feb 14, 2024
4.9%
6.7M shares
SC 13G/A · Feb 14, 2024
4.7%
6.2M shares
SC 13G/A · Feb 14, 2024
4.3%
5.7M shares
SC 13G · Feb 14, 2024
8.9%
12.0M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
8.8%
11.9M shares
SC 13G/A · Jan 23, 2024
13.1%
17.8M shares
SC 13D/A · Sep 19, 2023
5.0%
6.8M shares
SC 13G/A · May 5, 2023
10.9%
14.8M shares
SC 13G/A · Feb 14, 2023
6.4%
8.7M shares
SC 13G · Feb 3, 2023
6.2%
8.4M shares
SC 13G/A · Aug 3, 2022
4.2%
5.7M shares
SC 13D/A · Mar 14, 2022
9.8%
13.1M shares
SC 13D/A · Feb 28, 2022
8.3%
11.1M shares
SC 13G · Feb 16, 2022
7.2%
9.7M shares
SC 13G · Feb 14, 2022
6.5%
8.8M shares
SC 13G · Feb 14, 2022
6.0%
8.0M shares
SC 13G · Feb 14, 2022
6.1%
8.2M shares