Cytek Biosciences, Inc.
DE ˙ DB ˙ US23285D1090
3,46 € ↓ -0,08 (-2,26%)
2026-06-04
DEL PRIS
SecurityDE:8EQ / Cytek Biosciences, Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership676,700 shares
Latest Disclosed Value $ 2,957,179
Renaissance Technologies Llc reports 0.25% increase in ownership of 8EQ / Cytek Biosciences, Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 676,700 shares of Cytek Biosciences, Inc. (DE:8EQ) valued at $2,503,790 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 675,000 shares of Cytek Biosciences, Inc.. This represents a change in shares of 0.25% during the quarter. The current value of the position is $2,341,382 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)
2026-05-14 2026-03-31 13F CYTEK BIOSCIENCES COM 23285D109 676,700 1,700 0.25 2,957 -13.23 0.0046
2026-02-12 2025-12-31 13F CYTEK BIOSCIENCES COM 23285D109 675,000 -120,544 -15.15 3,409 23.48 0.0053
2025-11-13 2025-09-30 13F CYTEK BIOSCIENCES COM 23285D109 795,544 -267,595 -25.17 2,761 -23.63 0.0036
2025-08-13 2025-06-30 13F CYTEK BIOSCIENCES COM 23285D109 1,063,139 375,539 54.62 3,615 31.08 0.0048
2025-05-14 2025-03-31 13F CYTEK BIOSCIENCES COM 23285D109 687,600 225,000 48.64 2,757 -8.16 0.0042
2025-02-13 2024-12-31 13F CYTEK BIOSCIENCES COM 23285D109 462,600 251,000 118.62 3,002 156.14 0.0044
2024-11-13 2024-09-30 13F CYTEK BIOSCIENCES COM 23285D109 211,600 -22,300 -9.53 1,172 -10.19 0.0018
2024-08-09 2024-06-30 13F CYTEK BIOSCIENCES COM 23285D109 233,900 233,900 1,305 0.0022
2024-02-13 2023-12-31 13F CYTEK BIOSCIENCES COM 23285D109 0 -296,900 -100.00 0 -100.00
2023-11-14 2023-09-30 13F CYTEK BIOSCIENCES COM 23285D109 296,900 296,900 2 0.0028
2023-08-11 2023-06-30 13F CYTEK BIOSCIENCES COM 23285D109 0 -353,500 -100.00 0 -100.00
2023-05-12 2023-03-31 13F CYTEK BIOSCIENCES COM 23285D109 353,500 -38,300 -9.78 3 -25.00 0.0043
2023-02-13 2022-12-31 13F CYTEK BIOSCIENCES COM 23285D109 391,800 179,900 84.90 4 -99.87 0.0055
2022-11-14 2022-09-30 13F CYTEK BIOSCIENCES COM 23285D109 211,900 49,000 30.08 3,119 78.43 0.0044
2022-08-12 2022-06-30 13F CYTEK BIOSCIENCES COM 23285D109 162,900 108,600 200.00 1,748 198.80 0.0021
2022-05-13 2022-03-31 13F CYTEK BIOSCIENCES COM 23285D109 54,300 -54,700 -50.18 585 -67.12 0.0007
2022-02-11 2021-12-31 13F CYTEK BIOSCIENCES COM 23285D109 109,000 109,000 1,779 0.0022
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.