Ticker · CUSIP 23285D109

CTKB

CYTEK BIOSCIENCES INC
···Share
Holders (tracked)
10
Combined shares
14,236,172
Combined value
$71.89M
Last close
$4.61
Quarter
2025Q4
Price · 1Y$4.61+0.96 (+26.30%)H $5.88 · L $2.42 · Avg Vol 1.0M
Position opened
$3.00$4.00$5.00$6.00VolJul 25Oct 25Jan 26Apr 26
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
1072024Q12025Q4
Price is -8.7% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

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

Insider activity

No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of CTKB…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
AQR Capital Management2022Q3$4.01+14.9%$3.4M
Two Sigma Investments2022Q1$4.02+14.7%$138K
Steve Cohen (Point72)2022Q1$4.14+11.3%$527K
Izzy Englander (Millennium Mgmt)2021Q3$4.20+9.7%$21.9M
Ken Griffin (Citadel Advisors)2021Q4$4.53+1.7%$769K
Renaissance Technologies2021Q4$5.92-22.2%$3.1M
Wellington Management2022Q1$6.93-33.5%$3.5M
T. Rowe Price2022Q2$7.53-38.7%$322K
D.E. Shaw & Co.2021Q4$7.57-39.1%$1.2M
Hillhouse (HHLR Advisors)2021Q3$21.41-78.5%$30.7M

Who moved on this name in 2025Q4

Position changes 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
$268.0M
2022Q4
10
$191.0M
2023Q1
11
$176.7M
2023Q2
9
$203.2M
2023Q3
9
$133.8M
2023Q4
4
$223.7M
2024Q1
7
$171.3M
2024Q2
10
$151.8M
2024Q3
8
$52.4M
2024Q4
8
$56.4M
2025Q1
9
$36.8M
2025Q2
6
$35.9M
2025Q3
10
$52.3M
2025Q4
10
$71.9M

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
9T. Rowe Price69.8K$353K
10Two Sigma Investments30.0K$152K

Recent moves

20 transactions
Embed this chart
Paste this iframe anywhere to embed the live CTKB chart.
<iframe src="https://openstocks.me/embed/stocks/CTKB" width="100%" height="480" frameborder="0" loading="lazy" title="CTKB chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>
Explore related topics