CTKB NASDAQ
Cytek Biosciences, Inc.
1W: +17.9%
1M: -14.8%
3M: -10.6%
YTD: -19.5%
1Y: +48.9%
3Y: -42.5%
$4.01
+0.05 (+1.26%)
Weekly Expected Move ±10.3%
$3
$3
$3
$4
$4
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🏦 Institutional Activity
Latest: Q1 2026175
Institutions Holding
+1 vs prior
58.1%
Ownership
-20.95%
21
New
57
Increased
77
Reduced
33
Closed
👔 Insider Trades
25 records| Date | Name | Title | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-05-18 | McCombe William D. | officer: chief financial officer | F-Tax Withholding | 3,839 | $3.55 | $14K | Filing |
| 2026-05-18 | Jiang Wenbin | officer: president and ceo | F-Tax Withholding | 1,913 | $3.55 | $7K | Filing |
| 2026-05-18 | Jiang Wenbin | officer: president and ceo | F-Tax Withholding | 3,588 | $3.55 | $13K | Filing |
| 2026-05-18 | McCombe William D. | officer: chief financial officer | F-Tax Withholding | 3,122 | $3.55 | $11K | Filing |
| 2026-05-18 | McCombe William D. | officer: chief financial officer | F-Tax Withholding | 2,268 | $3.55 | $8K | Filing |
| 2026-05-18 | Jiang Wenbin | officer: president and ceo | F-Tax Withholding | 15,009 | $3.55 | $53K | Filing |
| 2026-05-18 | Barnett Valerie | officer: chief legal officer | F-Tax Withholding | 881 | $3.55 | $3K | Filing |
| 2026-05-18 | Jiang Wenbin | officer: president and ceo | F-Tax Withholding | 5,032 | $3.55 | $18K | Filing |
| 2026-05-18 | Barnett Valerie | officer: chief legal officer | F-Tax Withholding | 2,602 | $3.55 | $9K | Filing |
| 2026-05-18 | Barnett Valerie | officer: chief legal officer | F-Tax Withholding | 3,386 | $3.55 | $12K | Filing |
| 2026-05-18 | Yan Ming | officer: chief technology officer | F-Tax Withholding | 1,224 | $3.55 | $4K | Filing |
| 2026-05-18 | Yan Ming | officer: chief technology officer | F-Tax Withholding | 919 | $3.55 | $3K | Filing |
| 2026-05-18 | Yan Ming | officer: chief technology officer | F-Tax Withholding | 1,025 | $3.55 | $4K | Filing |
| 2026-05-18 | Yan Ming | officer: chief technology officer | F-Tax Withholding | 2,364 | $3.55 | $8K | Filing |
| 2026-05-18 | Busque Philippe | officer: svp, global sales and services | F-Tax Withholding | 263 | $3.55 | $934 | Filing |
| 2026-05-18 | Busque Philippe | officer: svp, global sales and services | F-Tax Withholding | 378 | $3.55 | $1K | Filing |
| 2026-05-18 | Busque Philippe | officer: svp, global sales and services | F-Tax Withholding | 620 | $3.55 | $2K | Filing |
| 2026-05-18 | Busque Philippe | officer: svp, global sales and services | F-Tax Withholding | 1,424 | $3.55 | $5K | Filing |
| 2026-05-18 | Barnett Valerie | officer: chief legal officer | F-Tax Withholding | 1,850 | $3.55 | $7K | Filing |
| 2026-03-13 | Yan Ming | officer: chief technology officer | G-Gift | 1,176,000 | $— | $0 | Filing |
| 2026-03-10 | Barnett Valerie | officer: chief legal officer | F-Tax Withholding | 5,740 | $4.23 | $24K | Filing |
| 2026-03-10 | Barnett Valerie | officer: chief legal officer | F-Tax Withholding | 4,247 | $4.23 | $18K | Filing |
| 2026-03-10 | Barnett Valerie | officer: chief legal officer | F-Tax Withholding | 1,761 | $4.23 | $7K | Filing |
| 2026-02-18 | Barnett Valerie | officer: chief legal officer | F-Tax Withholding | 525 | $4.20 | $2K | Filing |
| 2026-02-18 | Yan Ming | officer: chief technology officer | F-Tax Withholding | 395 | $4.20 | $2K | Filing |
🏛️ Congressional Trades
0 records| Date | Politician | Chamber | Type | Amount | Filing |
|---|---|---|---|---|---|
| No congressional trades found | |||||
🏦 Top Institutional Holders
20 holders| Holder | Shares | Value | Date Reported | Filing | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 17,007,269 | $74M | -165,759 | 2026-03-31 | Filing |
| Topline Capital Management, LLC | 7,064,481 | $31M | -377,985 | 2026-03-31 | Filing |
| HHLR ADVISORS, LTD. | 6,657,030 | $29M | — | 2026-03-31 | Filing |
| VANGUARD CAPITAL MANAGEMENT LLC | 4,762,904 | $21M | +4,762,904 | 2026-03-31 | Filing |
| STATE STREET CORP | 4,123,748 | $18M | -23,216 | 2026-03-31 | Filing |
| GEODE CAPITAL MANAGEMENT, LLC | 2,833,955 | $12M | +43,381 | 2026-03-31 | Filing |
| DIMENSIONAL FUND ADVISORS LP | 2,663,329 | $12M | +16,438 | 2026-03-31 | Filing |
| GOLDMAN SACHS GROUP INC | 2,344,735 | $10M | +554,821 | 2026-03-31 | Filing |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2,311,858 | $10M | +2,311,858 | 2026-03-31 | Filing |
| ROYCE & ASSOCIATES LP | 1,642,368 | $7M | -50,289 | 2026-03-31 | Filing |
| BROWN CAPITAL MANAGEMENT LLC | 1,480,506 | $6M | -592,409 | 2026-03-31 | Filing |
| Russell Investments Group, Ltd. | 1,359,900 | $6M | +358,773 | 2026-03-31 | Filing |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1,104,601 | $5M | +10,062 | 2026-03-31 | Filing |
| BANK OF AMERICA CORP /DE | 1,009,054 | $4M | +152,893 | 2026-03-31 | Filing |
| NORTHERN TRUST CORP | 1,005,193 | $4M | +47,599 | 2026-03-31 | Filing |
| AQR CAPITAL MANAGEMENT LLC | 912,342 | $4M | +168,887 | 2026-03-31 | Filing |
| Simcoe Capital LLC | 882,113 | $4M | +583,652 | 2026-03-31 | Filing |
| CenterBook Partners LP | 729,874 | $3M | +729,874 | 2026-03-31 | Filing |
| VANGUARD FIDUCIARY TRUST CO | 717,011 | $3M | +717,011 | 2026-03-31 | Filing |
| RENAISSANCE TECHNOLOGIES LLC | 676,700 | $3M | +1,700 | 2026-03-31 | Filing |