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CYTEK BIOSCI (CTKB)
NASDAQ
$4.07$0.00 (0.00%)
Price as of Jun 23, 2026 7:26 PM EDT- $498.5MMarket Cap
- 26.01%1-Year Change
- Medical DevicesIndustry
CYTEK BIOSCI (CTKB)
$4.07$0.00 (0.00%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK FUNDING, INC. /DE | 14.31% | 18.5M | -9,496 (-0.05%) | Dec 31, 2024 |
BLACKROCK INC. | 13.22% | 17.1M | -355,549 (-2.08%) | Jun 30, 2024 |
BLACKROCK, INC. | 13.17% | 17.0M | -165,759 (-0.97%) | Mar 31, 2026 |
VANGUARD GROUP INC | 5.79% | 7.5M | +541,973 (+7.25%) | Dec 31, 2025 |
TOPLINE CAPITAL MANAGEMENT, LLC | 5.47% | 7.1M | -377,985 (-5.35%) | Mar 31, 2026 |
HHLR ADVISORS, LTD. | 5.15% | 6.7M | 0 (0.00%) | Mar 31, 2026 |
MILLENNIUM MANAGEMENT LLC | 4.87% | 6.3M | +1.5M (+24.47%) | Mar 31, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
iSHARES TRUST | 9.71% | 12.5M | -95,430 (-0.76%) | Mar 31, 2026 |
VANGUARD INDEX FUNDS | 3.59% | 4.6M | +36,725 (+0.79%) | Mar 31, 2026 |
TRUST FOR PROFESSIONAL MANAGERS | 1.35% | 1.7M | +604,233 (+34.66%) | Feb 28, 2026 |
SPDR SERIES TRUST | 1.24% | 1.6M | +28,969 (+1.82%) | Mar 31, 2026 |
DFA INVESTMENT DIMENSIONS GROUP INC | 1.06% | 1.4M | -202,118 (-14.77%) | Jan 31, 2026 |
Brown Capital Management Mutual Funds | 0.82% | 1.1M | -361,939 (-34.16%) | Mar 31, 2026 |
FIDELITY CONCORD STREET TRUST | 0.79% | 1.0M | +43,487 (+4.27%) | Feb 28, 2026 |
Current Ownership Distribution
- Institutions1.3B (74.92%)
- Mutual Funds419.4M (23.98%)
- Insiders19.3M (1.10%)
- Other0 (0.00%)
Insider Transactions
- 1.10% (19.3M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 0Number of InsiderSelling (last 12 months)
- $0.00Amount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Yan Ming CHIEF TECHNOLOGY OFFICER | Gift | Jun 12, 2026 | $0.00 | 135,892 | $0.00 | 4.8M |
Chin Richard | Award | Jun 10, 2026 | $0.00 | 33,333 | $0.00 | 33,333 |
MUIR GLENN P | Award | Jun 10, 2026 | $0.00 | 55,555 | $0.00 | 55,555 |
Chin Richard | Award | Jun 10, 2026 | $0.00 | 18,261 | $0.00 | 18,261 |
MUIR GLENN P | Award | Jun 10, 2026 | $0.00 | 29,835 | $0.00 | 29,835 |
Yan Ming CHIEF TECHNOLOGY OFFICER | Gift | Mar 13, 2026 | $0.00 | 1.2M | $0.00 | 4.9M |
Chin Richard | Exempt | Mar 10, 2026 | $0.00 | 6,107 | $0.00 | 57,004 |
Jiang Wenbin PRESIDENT AND CEO | Award | Mar 10, 2026 | $0.00 | 485,545 | $0.00 | 485,545 |
Yan Ming CHIEF TECHNOLOGY OFFICER | Award | Mar 10, 2026 | $0.00 | 120,688 | $0.00 | 120,688 |
Barnett Valerie CHIEF LEGAL OFFICER | Award | Mar 10, 2026 | $0.00 | 120,114 | $0.00 | 120,114 |
Chin Richard | Exempt | Mar 10, 2026 | $0.00 | 6,107 | $0.00 | 16,285 |
Jiang Wenbin PRESIDENT AND CEO | Award | Mar 10, 2026 | $0.00 | 915,407 | $0.00 | 915,407 |
Yan Ming CHIEF TECHNOLOGY OFFICER | Award | Mar 10, 2026 | $0.00 | 227,535 | $0.00 | 227,535 |
Barnett Valerie CHIEF LEGAL OFFICER | Award | Mar 10, 2026 | $0.00 | 226,453 | $0.00 | 226,453 |
Yan Ming CHIEF TECHNOLOGY OFFICER | Exempt | Mar 10, 2026 | $0.00 | 9,817 | $0.00 | 29,460 |
Jiang Wenbin PRESIDENT AND CEO | Exempt | Mar 10, 2026 | $0.00 | 15,708 | $0.00 | 47,129 |
Yan Ming CHIEF TECHNOLOGY OFFICER | Exempt | Mar 10, 2026 | $0.00 | 7,366 | $0.00 | 44,203 |
Barnett Valerie CHIEF LEGAL OFFICER | Exempt | Mar 10, 2026 | $0.00 | 4,908 | $0.00 | 14,734 |
Yan Ming CHIEF TECHNOLOGY OFFICER | Exempt | Mar 10, 2026 | $0.00 | 8,217 | $0.00 | 73,958 |
Jiang Wenbin PRESIDENT AND CEO | Exempt | Mar 10, 2026 | $0.00 | 29,467 | $0.00 | 176,806 |
Yan Ming CHIEF TECHNOLOGY OFFICER | Exempt | Mar 10, 2026 | $0.00 | 9,817 | $0.00 | 6.1M |
Barnett Valerie CHIEF LEGAL OFFICER | Exempt | Mar 10, 2026 | $0.00 | 10,313 | $0.00 | 61,884 |
Yan Ming CHIEF TECHNOLOGY OFFICER | In Kind | Mar 10, 2026 | $12,888.81 | 3,047 | $4.23 | 6.1M |
Jiang Wenbin PRESIDENT AND CEO | Exempt | Mar 10, 2026 | $0.00 | 38,669 | $0.00 | 348,030 |
Yan Ming CHIEF TECHNOLOGY OFFICER | Exempt | Mar 10, 2026 | $0.00 | 7,366 | $0.00 | 6.1M |
Barnett Valerie CHIEF LEGAL OFFICER | Exempt | Mar 10, 2026 | $0.00 | 14,501 | $0.00 | 130,512 |
Yan Ming CHIEF TECHNOLOGY OFFICER | In Kind | Mar 10, 2026 | $9,674.01 | 2,287 | $4.23 | 6.1M |
Jiang Wenbin PRESIDENT AND CEO | Exempt | Mar 10, 2026 | $0.00 | 15,708 | $0.00 | 5.4M |
Yan Ming CHIEF TECHNOLOGY OFFICER | Exempt | Mar 10, 2026 | $0.00 | 8,217 | $0.00 | 6.1M |
Barnett Valerie CHIEF LEGAL OFFICER | Exempt | Mar 10, 2026 | $0.00 | 4,908 | $0.00 | 121,370 |