Ticker · CUSIP 23285D109

CTKB

CYTEK BIOSCIENCES INC
···Share
Holders (tracked)
10
Combined shares
14,236,172
Combined value
$71.54M
Last close
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
1072024Q12025Q4

SEC event timeline

17 events
  1. +84,450 shares · 2025Q4
    13F
  2. +142,104 shares · 2025Q4
    13F
  3. −145,727 shares · 2025Q4
    13F
  4. +1,334,065 shares · 2025Q4
    13F
  5. −73,362 shares · 2025Q4
    13F
  6. +7,658 shares · 2025Q4
    13F
  7. −1,776,767 shares · 2025Q4
    13F
  8. −276,435 shares · 2025Q4
    13F
  9. −120,544 shares · 2025Q4
    13F
  10. −218,503 shares · 2025Q3
    13F
  11. +187,618 shares · 2025Q3
    13F
  12. +175,759 shares · 2025Q3
    13F
  13. +5,314 shares · 2025Q3
    13F
  14. +2,541,046 shares · 2025Q3
    13F
  15. +121,022 shares · 2025Q3
    13F
  16. +2,493,610 shares · 2025Q3
    13F
  17. −267,595 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
New positions0
Trimmed5
Exited0

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
10
$183.6M
2022Q2
9
$209.0M
2022Q3
10
$268K
2022Q4
10
$185.5M
2023Q1
11
$163.4M
2023Q2
9
$203.0M
2023Q3
9
$132.0M
2023Q4
4
$223.4M
2024Q1
7
$171.1M
2024Q2
10
$151.6M
2024Q3
8
$52.2M
2024Q4
8
$56.1M
2025Q1
9
$36.6M
2025Q2
6
$35.7M
2025Q3
10
$52.0M
2025Q4
10
$71.5M

Who owns CTKB

10 super-investors · 2025Q4
Tracked stake
14.24M
shares
Combined value
$72M
% of shares outstanding
shares-out unknown
Quarter action mix
Added4Trim5Held1
#ManagerSharesValue
1Hillhouse
HHLR Advisors
6.66M$34M
2Izzy Englander
Millennium Mgmt
4.75M$24M
3Wellington Management764.3K$4M
4AQR Capital Management743.5K$4M
5Renaissance Technologies675.0K$3M
6D.E. Shaw & Co.263.1K$1M
7Ken Griffin
Citadel Advisors
166.8K$842K
8Steve Cohen
Point72
114.3K$577K
9Two Sigma Investments30.0K$152K
10T. Rowe Price69.8K$353

Recent moves

20 transactions
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