Cytek Biosciences, Inc.
US ˙ NasdaqGS ˙ US23285D1090

SecurityCTKB / Cytek Biosciences, Inc.
InsiderPhilippe Busque
This page shows the track record and history of Busque Philippe insider trades in Cytek Biosciences, Inc.. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Philippe Busque in CTKB / Cytek Biosciences, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

CTKB / Cytek Biosciences, Inc. Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Philippe Busque in CTKB / Cytek Biosciences, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

CTKB / Cytek Biosciences, Inc. Insider Trades
Insider Transaction History
File
Date
Trade
Date
Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price
Unit
Price
Units
Changed
Value
Changed (1K)
Remaining
Options
Remaining
Shares
2026-05-20 2026-05-18 4 Busque Philippe CTKB Common Stock F - Taxes D 3.5500 -1,424 -5 43,466
2026-05-20 2026-05-18 4 Busque Philippe CTKB Common Stock M - Exercise D 5,551 44,890
2026-05-20 2026-05-18 4 Busque Philippe CTKB Common Stock F - Taxes D 3.5500 -620 -2 39,339
2026-05-20 2026-05-18 4 Busque Philippe CTKB Common Stock M - Exercise D 2,416 39,959
2026-05-20 2026-05-18 4 Busque Philippe CTKB Common Stock F - Taxes D 3.5500 -378 -1 37,543
2026-05-20 2026-05-18 4 Busque Philippe CTKB Common Stock M - Exercise D 1,473 37,921
2026-05-20 2026-05-18 4 Busque Philippe CTKB Common Stock F - Taxes D 3.5500 -263 -1 36,448
2026-05-20 2026-05-18 4 Busque Philippe CTKB Common Stock M - Exercise D 1,024 36,711
2026-03-12 2026-03-10 4 Busque Philippe CTKB Common Stock F - Taxes D 4.2300 -1,496 -6 35,687
2026-03-12 2026-03-10 4 Busque Philippe CTKB Common Stock M - Exercise D 4,833 37,183
2026-03-12 2026-03-10 4 Busque Philippe CTKB Common Stock F - Taxes D 4.2300 -912 -4 32,350
2026-03-12 2026-03-10 4 Busque Philippe CTKB Common Stock M - Exercise D 2,946 33,262
2026-03-12 2026-03-10 4 Busque Philippe CTKB Common Stock F - Taxes D 4.2300 -635 -3 30,316
2026-03-12 2026-03-10 4 Busque Philippe CTKB Common Stock M - Exercise D 2,049 30,951
2025-11-20 2025-11-18 4 Busque Philippe CTKB Common Stock F - Taxes D 5.5300 -927 -5 28,902
2025-11-20 2025-11-18 4 Busque Philippe CTKB Common Stock M - Exercise D 3,625 29,829
2025-11-20 2025-11-18 4 Busque Philippe CTKB Common Stock F - Taxes D 5.5300 -565 -3 26,204
2025-11-20 2025-11-18 4 Busque Philippe CTKB Common Stock M - Exercise D 2,210 26,769
2025-11-20 2025-11-18 4 Busque Philippe CTKB Common Stock F - Taxes D 5.5300 -393 -2 24,559
2025-11-20 2025-11-18 4 Busque Philippe CTKB Common Stock M - Exercise D 1,536 24,952
2025-08-20 2025-08-18 4 Busque Philippe CTKB Common Stock F - Taxes D 4.0600 -1,412 -6 23,416
2025-08-20 2025-08-18 4 Busque Philippe CTKB Common Stock M - Exercise D 3,625 24,828
2025-08-20 2025-08-18 4 Busque Philippe CTKB Common Stock F - Taxes D 4.0600 -861 -3 21,203
2025-08-20 2025-08-18 4 Busque Philippe CTKB Common Stock M - Exercise D 2,210 22,064
2025-08-20 2025-08-18 4 Busque Philippe CTKB Common Stock F - Taxes D 4.0600 -599 -2 19,854
2025-08-20 2025-08-18 4 Busque Philippe CTKB Common Stock M - Exercise D 1,536 20,453
2025-05-21 2025-05-19 4 Busque Philippe CTKB Common Stock F - Taxes D 2.6900 -942 -3 18,917
2025-05-21 2025-05-19 4 Busque Philippe CTKB Common Stock M - Exercise D 2,416 19,859
2025-05-21 2025-05-19 4 Busque Philippe CTKB Common Stock F - Taxes D 2.6900 -574 -2 17,443
2025-05-21 2025-05-19 4 Busque Philippe CTKB Common Stock M - Exercise D 1,473 18,017
2025-05-21 2025-05-19 4 Busque Philippe CTKB Common Stock F - Taxes D 2.6900 -399 -1 16,544
2025-05-21 2025-05-19 4 Busque Philippe CTKB Common Stock M - Exercise D 1,024 16,943
2025-03-12 2025-03-10 4 Busque Philippe CTKB Common Stock F - Taxes D 4.3600 -1,148 -5 15,919
2025-03-12 2025-03-10 4 Busque Philippe CTKB Common Stock M - Exercise D 2,946 17,067
2025-03-12 2025-03-10 4 Busque Philippe CTKB Common Stock F - Taxes D 4.3600 -799 -3 14,121
2025-03-12 2025-03-10 4 Busque Philippe CTKB Common Stock M - Exercise D 2,049 14,920
2024-11-20 2024-11-18 4 Busque Philippe CTKB Common Stock F - Taxes D 6.0300 -861 -5 12,871
2024-11-20 2024-11-18 4 Busque Philippe CTKB Common Stock M - Exercise D 2,210 13,732
2024-11-20 2024-11-18 4 Busque Philippe CTKB Common Stock F - Taxes D 6.0300 -599 -4 11,522
2024-11-20 2024-11-18 4 Busque Philippe CTKB Common Stock M - Exercise D 1,536 12,121
2024-08-21 2024-08-19 4 Busque Philippe CTKB Common Stock F - Taxes D 5.5300 -861 -5 10,585
2024-08-21 2024-08-19 4 Busque Philippe CTKB Common Stock M - Exercise D 2,210 11,446
2024-08-21 2024-08-19 4 Busque Philippe CTKB Common Stock F - Taxes D 5.5300 -599 -3 9,236
2024-08-21 2024-08-19 4 Busque Philippe CTKB Common Stock M - Exercise D 1,536 9,835
2024-05-22 2024-05-20 4 Busque Philippe CTKB Common Stock F - Taxes D 5.9600 -574 -3 8,299
2024-05-22 2024-05-20 4 Busque Philippe CTKB Common Stock M - Exercise D 1,473 8,873
2024-05-22 2024-05-20 4 Busque Philippe CTKB Common Stock F - Taxes D 5.9600 -2,594 -15 7,400
2024-05-22 2024-05-20 4 Busque Philippe CTKB Common Stock M - Exercise D 6,659 9,994
2024-03-21 2024-03-20 4 Busque Philippe CTKB Common Stock F - Taxes D 6.7000 -2,129 -14 3,335
2024-03-21 2024-03-20 4 Busque Philippe CTKB Common Stock M - Exercise D 5,464 5,464
P
非デリバティブまたはデリバティブ証券の公開市場または非公開購入
S
非デリバティブ証券またはデリバティブ証券の公開市場または非公開売却
A
会社からの有価証券の交付、授与その他の取得 (オプション等)
C
デリバティブの転換
D
有価証券の会社への売却または譲渡
F
会社から受領した有価証券の一部を使用した、行使価格または納税義務のお支払い
G
内部者によるまたは内部者に対する有価証券の贈与
K
株式スワップと類似のヘッジ取引
M
会社から受け取ったデリバティブ証券 (オプションなど) の行使または転換
V
フォーム4により任意に報告した取引
J
その他 (取引を説明する脚注を含む)