CTKB Cytek Biosciences, Inc.

NASDAQ
$4.61

Cytek Biosciences, Inc. (CTKB) Hedge Fund Activity

This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.

Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.

Hedge fund breadth
+71.43
18 buyers / 3 sellers
STRONG BUYING
Funds compared
21
funds with comparable CTKB positions
21 current holders · 9 prior-quarter holders
Net share change
+6.10M
+6.80M added, -694.5K cut
Position activity
12 new 6 increased 3 reduced 0 exited

Most significant moves

Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.

Fund Action Shares changed Change Est. value Portfolio wt. Score
Point72 Asset Management, L.P. New +422.4K — $1.9M 0.0% 61
MARSHALL WACE, LLP Long/Short New +441.7K — $2.0M 0.0% 58
Balyasny Asset Management L.P. New +54.4K — $240.9K 0.0% 57
Qube Research & Technologies Ltd Quant New +689.8K — $3.1M 0.0% 57
Jain Global Long/Short Quant New +411.5K — $1.8M 0.0% 54
D. E. Shaw & Co., Inc. Quant Increased +409.1K +157.3% $1.8M 0.0% 54
Caxton Associates Macro New +11.9K — $52.9K 0.0% 53
Quadrature Capital Quant New +21.4K — $94.9K 0.0% 52
ExodusPoint Capital Management Long/Short Quant New +36.1K — $160.1K 0.0% 52
TWO SIGMA INVESTMENTS, LP Quant Increased +142.6K +557.1% $631.8K 0.0% 51

Most significant buyers

By move score, not size.

  • Point72 Asset Management, L.P. New · +422.4K
  • MARSHALL WACE, LLP New · +441.7K
  • Balyasny Asset Management L.P. New · +54.4K
  • Qube Research & Technologies Ltd New · +689.8K
  • Jain Global New · +411.5K

Most significant sellers

By move score, not size.

  • CenterBook Partners Reduced · -580.7K
  • RENAISSANCE TECHNOLOGIES LLC Reduced · -15.4K
  • AQR Capital Management Reduced · -98.4K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
Point72 Asset Management, L.P. 1 422.4K 0 +422.4K — 0.0% New 61
MARSHALL WACE, LLP 2 441.7K 0 +441.7K — 0.0% New 58
Balyasny Asset Management L.P. 2 54.4K 0 +54.4K — 0.0% New 57
Qube Research & Technologies Ltd 2 689.8K 0 +689.8K — 0.0% New 57
Jain Global 3 411.5K 0 +411.5K — 0.0% New 54
D. E. Shaw & Co., Inc. 1 669.2K 260.1K +409.1K +157.3% 0.0% Increased 54
Caxton Associates 3 11.9K 0 +11.9K — 0.0% New 53
Quadrature Capital 3 21.4K 0 +21.4K — 0.0% New 52
ExodusPoint Capital Management 3 36.1K 0 +36.1K — 0.0% New 52
TWO SIGMA INVESTMENTS, LP 2 168.2K 25.6K +142.6K +557.1% 0.0% Increased 51
Tudor Investment Corporation 2 837.9K 320.7K +517.2K +161.3% 0.0% Increased 50
Brevan Howard Capital Management 3 10.4K 0 +10.4K — 0.0% New 49
Squarepoint Ops LLC 2 82.8K 25.3K +57.5K +227.2% 0.0% Increased 48
Y-Intercept 4 193.1K 0 +193.1K — 0.0% New 48
Aquatic Capital Management 4 76.8K 0 +76.8K — 0.0% New 48
Quantbot Technologies 4 6.5K 0 +6.5K — 0.0% New 45
MILLENNIUM MANAGEMENT LLC 2 9.3M 6.3M +3.05M +48.4% 0.0% Increased 42
CITADEL ADVISORS LLC 1 721.5K 471.4K +250.1K +53.1% 0.0% Increased 42
CenterBook Partners 4 149.2K 729.9K -580.7K -79.6% 0.0% Reduced 40
RENAISSANCE TECHNOLOGIES LLC 1 661.3K 676.7K -15.4K -2.3% 0.0% Reduced 28
AQR Capital Management 3 814.0K 912.3K -98.4K -10.8% 0.0% Reduced 22

Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Hedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.