Cytek Biosciences, Inc.
US ˙ NasdaqGS ˙ US23285D1090

SecurityCTKB / Cytek Biosciences, Inc.
InstitutionSquarepoint Ops LLC
Latest Disclosed Ownership25,296 shares
Latest Disclosed Value $ 110,544
Squarepoint Ops LLC ownership in CTKB / Cytek Biosciences, Inc.

On May 15, 2026 - Squarepoint Ops LLC filed a 13F-HR form disclosing ownership of 25,296 shares of Cytek Biosciences, Inc. (US:CTKB) valued at $110,544 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 0 shares of Cytek Biosciences, Inc.. The current value of the position is $102,449 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F CYTEK BIOSCIENCES COM 23285D109 25,296 25,296 111 0.0001
2026-02-13 2025-12-31 13F CYTEK BIOSCIENCES COM 23285D109 0 -158,641 -100.00 0 -100.00
2025-11-14 2025-09-30 13F CYTEK BIOSCIENCES COM 23285D109 158,641 13,590 9.37 550 11.56 0.0006
2025-08-27 2025-06-30 13F/A-1 CYTEK BIOSCIENCES COM 23285D109 145,051 102,047 237.30 493 186.63 0.0005
2025-08-14 2025-06-30 13F CYTEK BIOSCIENCES COM 23285D109 145,051 102,047 493 0.0005
2025-08-27 2025-03-31 13F/A-1 CYTEK BIOSCIENCES COM 23285D109 43,004 -24,911 -36.68 172 -60.91 0.0002
2025-05-15 2025-03-31 13F CYTEK BIOSCIENCES COM 23285D109 43,004 -24,911 172 0.0002
2025-02-14 2024-12-31 13F CYTEK BIOSCIENCES COM 23285D109 67,915 -42,666 -38.58 441 -28.10 0.0004
2024-11-14 2024-09-30 13F CYTEK BIOSCIENCES COM 23285D109 110,581 -76,780 -40.98 613 -41.44 0.0010
2024-08-14 2024-06-30 13F CYTEK BIOSCIENCES COM 23285D109 187,361 170,539 1,013.79 1,045 833.04 0.0017
2024-05-15 2024-03-31 13F CYTEK BIOSCIENCES COM 23285D109 16,822 16,822 113 0.0002
2023-08-14 2023-06-30 13F CYTEK BIOSCIENCES COM 23285D109 0 -30,773 -100.00 0 -100.00
2023-05-15 2023-03-31 13F CYTEK BIOSCIENCES COM 23285D109 30,773 -54,660 -63.98 283 -67.66 0.0012
2023-02-14 2022-12-31 13F CYTEK BIOSCIENCES COM 23285D109 85,433 85,433 872 0.0034
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.