Stock overview
Cytek Biosciences Inc.
Explore the company, reported ownership, price history, and available source evidence.
CYTEK BIOSCIENCES INC (CTKB) is a healthcare or biotechnology equity security tracked from 13F filings.
- Last close
- $5.65
- · CTKB
- Tracked holders
- 2 funds
- Latest available 13F per fund
CTKB · USD
Price
$5.65
-$19.44
(-77.48%)
over selected range
Close · Sep 25, 2026
Market closed
1255 stored daily closes
$5.65
Sep 25, 2026
- Range low
- $2.42
- Range high
- $25.09
- Observations
- 1255
- Session date
- Sep 25, 2026
Sep 27, 2021–Sep 25, 2026. Regular market hours only. Historical prices are unadjusted; splits and other corporate actions can affect comparisons.
Investor Popularity
Rows are narrowed by movement, fund type, and position size.
| Fund | Move | Value | Weight |
|---|---|---|---|
| Tudor Investment Corp largest tracked holder Q2 2026 · filed Aug 14, 2026 · SEC filing | +161% 26'Q2 | $3,711,955 | 0.01% |
| Renaissance Technologies position history Q2 2026 · filed Aug 13, 2026 · SEC filing | −2% 26'Q2 | $2,929,559 | 0% |
SEC Forms 4/5
Insiders
Financials
Official-source analysis
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