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Of the 10 tracked institutions holding CTKB, 5 have a 3-year clone track record — 4 of them beat the S&P. Average holder's clone alpha: +1.3pt. It's a gauge of who owns the name, not just how many.
Among the 10 tracked institutional investors we monitor, CTKB (CYTEK BIOSCIENCES INC) is held with a combined value of $197.27M across 43,979,284 shares. The largest holder is BlackRock, Inc. with a position worth $74.32M. 7 funds increased their holdings. 2 funds reduced their position.
Total Institutional Value
$197.27M
Total Shares Held
43,979,284
Institutional Holders
10
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $74.32M | 0.00% | -1.0% |
| 2 | VANGUARD GROUP INC | $37.75M | 0.00% | +7.8% |
| 3 | HHLR ADVISORS, LTD. | $29.09M | 1.74% | - |
| 4 | MILLENNIUM MANAGEMENT LLC | $27.50M | 0.01% | +32.4% |
| 5 | STATE STREET CORP | $18.02M | 0.00% | -0.6% |
| 6 | AQR CAPITAL MANAGEMENT LLC | $3.99M | 0.00% | +22.7% |
| 7 | RENAISSANCE TECHNOLOGIES LLC | $2.96M | 0.00% | +0.3% |
| 8 | CITADEL ADVISORS LLC | $2.06M | 0.00% | +182.7% |
| 9 | FMR LLC | $1.24M | 0.00% | +21.1% |
| 10 | PRICE T ROWE ASSOCIATES INC /MD/ | $351.00K | 0.00% | +14.8% |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of CTKB with a position worth $74.32M, representing 0.00% of their portfolio. In total, 10 institutional investors hold CTKB with a combined value of $197.27M.
Institutional investors hold $197.27M worth of CTKB stock across 10 positions. The largest institutional holder is BlackRock, Inc. with $74.32M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For CTKB, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their CTKB positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$4.46
2026-07-24
YTD
-9.3%
49% of 52-week range