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MILLENNIUM MANAGEMENT LLC

Position in CTKB — Cytek Biosciences, Inc.

CIK 1273087 NEW YORK, NY

Position in CTKB

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$41,367,384
+$13,872,227 QoQ
Shares Held
9,338,010
+48.4% QoQ
Ownership
7.18%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#2
of 154 holders
Holding Since
Sep 2021
18 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CTKB Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Jun 30, 2026

MILLENNIUM MANAGEMENT LLC holds $2,412,325,784 across 81 Medical Devices names. CTKB ranks #11 (1.7% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in CTKB

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21 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $41,367,384 9,338,010
2026-06-30 $41,367,384 9,338,010
2026-05-11 $32,436,348 7,872,900
2026-04-02 $29,502,947 6,638,827
2026-03-31 $27,495,157 6,291,798
2025-12-31 $23,999,857 4,752,447
2025-09-30 $11,861,785 3,418,382
2025-06-30 $3,144,224 924,772
2025-03-31 $1,986,702 495,437
2024-12-31 $5,217,460 803,923
2024-09-30 $1,055,973 190,609
2024-06-30 $5,281,414 946,490
2024-03-31 $178,787 26,645
2023-09-30 $2,362,306 427,954
2023-06-30 $4,953,225 580,003
2023-03-31 $8,750,488 952,175
2022-12-31 $1,375,593 134,730
2022-09-30 $6,012,516 408,459
2022-06-30 $9,683,631 902,482
2022-03-31 $1,269,603 117,774
2021-09-30 $3,831,918 178,978