CTKB
Cytek Biosciences, Inc.Open5.39+0.08 +1.41%USD
NasdaqGS · as of Oct 13, 15:49 ET · 15m delay
Open
5.26
Prev close
5.31
Day range
5.185.47
52-week range
3.316.21
Volume
1.12M1.02×
Mkt cap
699.96M
P/E ttm
—
Fwd P/E
76.93
EPS ttm
-0.6200
Div yield
0.00%
Earnings
Aug 5, 2026
From 52w high
−13.29%
CTKB shareholders
CTKB Ownership
13F / N-PORT filings via Yahoo
Institutions
63.0%
68.8% of the float
Insiders
8.5%
officers and directors
Institutional holders
208
filing positions
Top 10 institutions
42.2%
4 adding · 5 trimming
Top Institutions
| Holder | % held | Shares | Value | Change | As of |
|---|---|---|---|---|---|
| Blackrock Inc. | 7.37% | 9.58M | $51.58M | −43.7% | Jun 30, 2026 |
| Millennium Management Llc | 7.18% | 9.34M | $50.29M | +48.4% | Jun 30, 2026 |
| Boston Partners | 5.89% | 7.66M | $41.25M | +32.0% | Jun 30, 2026 |
| HHLR Advisors, LTD | 5.12% | 6.66M | $35.85M | 0.0% | Jun 30, 2026 |
| Topline Capital Management, LLC | 4.83% | 6.28M | $33.84M | −11.1% | Jun 30, 2026 |
| Vanguard Capital Management LLC | 3.80% | 4.94M | $26.60M | +3.7% | Jun 30, 2026 |
| Geode Capital Management, LLC | 2.35% | 3.06M | $16.48M | +8.0% | Jun 30, 2026 |
| Dimensional Fund Advisors LP | 2.01% | 2.62M | $14.09M | −1.8% | Jun 30, 2026 |
| State Street Corporation | 1.97% | 2.57M | $13.82M | −37.8% | Jun 30, 2026 |
| Goldman Sachs Group Inc | 1.67% | 2.17M | $11.67M | −7.6% | Jun 30, 2026 |
Top Funds
| Holder | % held | Shares | Value | Change | As of |
|---|---|---|---|---|---|
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 2.71% | 3.53M | $18.99M | +3.4% | Jun 30, 2026 |
| iShares Trust-iShares Russell 2000 ETF | 2.40% | 3.12M | $16.79M | +0.7% | Aug 31, 2026 |
| Trust for Professional Managers-Column Small Cap Select Fund | 2.10% | 2.74M | $14.73M | +4.9% | Aug 31, 2026 |
| ROYCE MICRO-CAP TRUST, INC.-Royce Micro-Cap Trust Inc | 1.02% | 1.32M | $7.11M | +32.1% | Jun 30, 2026 |
| Fidelity Salem Street Trust-Fidelity Small Cap Index Fund | 1.02% | 1.33M | $7.16M | +0.9% | Jul 31, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund | 1.00% | 1.30M | $7.00M | +5.7% | Jun 30, 2026 |
| iShares Trust-iShares Russell 2000 Value ETF | 0.87% | 1.13M | $6.08M | +0.5% | Aug 31, 2026 |
| RBB Fund, Inc.-WPG Partners Select Small Cap Value Fund | 0.82% | 1.07M | $5.75M | +2.9% | Jul 31, 2026 |
| iShares Trust-iShares Biotechnology ETF | 0.68% | 880.35K | $4.74M | +2.5% | Aug 31, 2026 |
| Goldman Sachs Trust-Goldman Sachs Small Cap Value Insights Fund | 0.49% | 639.13K | $3.44M | +34.0% | Jul 31, 2026 |
Institutions report quarterly, up to 45 days after the quarter ends, so these positions can be months old. Change compares the share count with the holder's previous filing. Insider transactions are on the overview page (INSD).