InsiderFlow

CTKB

Cytek Biosciences, Inc.$5.64+0.36 (+6.91%)
Prev Close$5.28·MCap$684.5M·P/E·Vol1.18M·Yield

Buys (12M)

0

$0.00

Sells (12M)

8

$277.5K

Net Activity

Net Seller

$277.5K

Active Insiders

5

last 12 mo

Over the past 12 months, insider activity at Cytek Biosciences, Inc. (CTKB) has been exclusively selling, with 0 insider purchases totaling $0.00 and 8 insider sales totaling $277.5K. The most recent insider transaction was by Barnett Valerie (CHIEF LEGAL OFFICER), who sold $2.2K worth of shares on Feb 18, 2026. Cytek Biosciences, Inc. operates in the Healthcare sector, within the Medical - Devices industry, with a market cap of $684.5M.

CTKB Insider Trading Activity

DateInsiderTypeValue
Feb 18, 2026 Barnett ValerieSell$2.2K
Feb 18, 2026 Jiang WenbinSell$5.6K
Feb 18, 2026 Yan MingSell$1.7K
Nov 18, 2025 Barnett ValerieSell$43.2K
Nov 18, 2025 Busque PhilippeSell$10.4K
Nov 18, 2025 Jiang WenbinSell$151.6K
Nov 18, 2025 McCombe William D.Sell$34.4K
Nov 18, 2025 Yan MingSell$28.3K
Aug 18, 2025 Barnett ValerieSell$35.8K
Aug 18, 2025 Busque PhilippeSell$11.7K
Aug 18, 2025 Jiang WenbinSell$68.9K
Aug 18, 2025 McCombe William D.Sell$30.6K
Aug 18, 2025 Yan MingSell$23.3K
Jun 2, 2025 McCombe William D.Buy$97.3K
May 19, 2025 Barnett ValerieSell$17.7K
May 19, 2025 Busque PhilippeSell$5.2K
May 19, 2025 Jiang WenbinSell$31.9K
May 19, 2025 McCombe William D.Sell$35.6K
May 19, 2025 Yan MingSell$11.7K
Mar 10, 2025 Barnett ValerieSell$25.9K
Mar 10, 2025 Busque PhilippeSell$8.5K
Mar 10, 2025 Jiang WenbinSell$55.2K
Mar 10, 2025 Yan MingSell$22.2K
Feb 18, 2025 Barnett ValerieSell$4.2K
Feb 18, 2025 Jiang WenbinSell$10.6K
Feb 18, 2025 Yan MingSell$3.1K
Nov 18, 2024 Barnett ValerieSell$27.1K
Nov 18, 2024 Busque PhilippeSell$8.8K
Nov 18, 2024 Jiang WenbinSell$59.7K
Nov 18, 2024 Poirson AllenSell$12.2K
Nov 18, 2024 Yan MingSell$21.8K
Aug 19, 2024 Barnett ValerieSell$27.9K
Aug 19, 2024 Busque PhilippeSell$8.1K
Aug 19, 2024 Jiang WenbinSell$54.7K
Aug 19, 2024 Poirson AllenSell$11.1K
Aug 19, 2024 Williams Paul ChristopherSell$23.2K
Aug 19, 2024 Yan MingSell$20.6K
May 20, 2024 Barnett ValerieSell$22.4K
May 20, 2024 Busque PhilippeSell$18.9K
May 20, 2024 Jiang WenbinSell$42.3K
May 20, 2024 Poirson AllenSell$8.6K
May 20, 2024 Williams Paul ChristopherSell$17.4K
May 20, 2024 Yan MingSell$18.7K
Apr 19, 2024 Yan MingSell$117.4K
Apr 9, 2024 Yan MingSell$13.3K
Mar 20, 2024 Busque PhilippeSell$14.3K
Mar 18, 2024 Yan MingSell$269.6K
Mar 11, 2024 Jeanmonod PatrikSell$13.8K
Mar 11, 2024 Jiang WenbinSell$33.5K
Mar 11, 2024 Poirson AllenSell$9.4K
1 / 4

CTKB Insider Buying Activity

The following table shows recent insider purchases of Cytek Biosciences, Inc. (CTKB) stock reported via SEC Form 4 filings.

DateInsiderTypeValue
Jun 2, 2025 McCombe William D.Buy$97.3K

CTKB Insider Selling Activity

The following table shows recent insider sales of Cytek Biosciences, Inc. (CTKB) stock reported via SEC Form 4 filings.

DateInsiderTypeValue
Feb 18, 2026 Barnett ValerieSell$2.2K
Feb 18, 2026 Jiang WenbinSell$5.6K
Feb 18, 2026 Yan MingSell$1.7K
Nov 18, 2025 Barnett ValerieSell$43.2K
Nov 18, 2025 Busque PhilippeSell$10.4K
Nov 18, 2025 Jiang WenbinSell$151.6K
Nov 18, 2025 McCombe William D.Sell$34.4K
Nov 18, 2025 Yan MingSell$28.3K
Aug 18, 2025 Barnett ValerieSell$35.8K
Aug 18, 2025 Busque PhilippeSell$11.7K
Aug 18, 2025 Jiang WenbinSell$68.9K
Aug 18, 2025 McCombe William D.Sell$30.6K
Aug 18, 2025 Yan MingSell$23.3K
May 19, 2025 Barnett ValerieSell$17.7K
May 19, 2025 Busque PhilippeSell$5.2K
May 19, 2025 Jiang WenbinSell$31.9K
May 19, 2025 McCombe William D.Sell$35.6K
May 19, 2025 Yan MingSell$11.7K
Mar 10, 2025 Barnett ValerieSell$25.9K
Mar 10, 2025 Busque PhilippeSell$8.5K
Mar 10, 2025 Jiang WenbinSell$55.2K
Mar 10, 2025 Yan MingSell$22.2K
Feb 18, 2025 Barnett ValerieSell$4.2K
Feb 18, 2025 Jiang WenbinSell$10.6K
Feb 18, 2025 Yan MingSell$3.1K
Nov 18, 2024 Barnett ValerieSell$27.1K
Nov 18, 2024 Busque PhilippeSell$8.8K
Nov 18, 2024 Jiang WenbinSell$59.7K
Nov 18, 2024 Poirson AllenSell$12.2K
Nov 18, 2024 Yan MingSell$21.8K
Aug 19, 2024 Barnett ValerieSell$27.9K
Aug 19, 2024 Busque PhilippeSell$8.1K
Aug 19, 2024 Jiang WenbinSell$54.7K
Aug 19, 2024 Poirson AllenSell$11.1K
Aug 19, 2024 Williams Paul ChristopherSell$23.2K
Aug 19, 2024 Yan MingSell$20.6K
May 20, 2024 Barnett ValerieSell$22.4K
May 20, 2024 Busque PhilippeSell$18.9K
May 20, 2024 Jiang WenbinSell$42.3K
May 20, 2024 Poirson AllenSell$8.6K
May 20, 2024 Williams Paul ChristopherSell$17.4K
May 20, 2024 Yan MingSell$18.7K
Apr 19, 2024 Yan MingSell$117.4K
Apr 9, 2024 Yan MingSell$13.3K
Mar 20, 2024 Busque PhilippeSell$14.3K
Mar 18, 2024 Yan MingSell$269.6K
Mar 11, 2024 Jeanmonod PatrikSell$13.8K
Mar 11, 2024 Jiang WenbinSell$33.5K
Mar 11, 2024 Poirson AllenSell$9.4K

CTKB Insiders

Jiang Wenbin

PRESIDENT AND CEO

Sold $5.46M
40 tradesLast: Feb 18, 2026
Yan Ming

CHIEF TECHNOLOGY OFFICER

Sold $5.67M
40 tradesLast: Feb 18, 2026
Barnett Valerie

General Counsel

Bought $32.3KSold $277.3K
18 tradesLast: Feb 18, 2026
McCombe William D.

Chief Financial Officer

Bought $97.3KSold $100.7K
4 tradesLast: Nov 18, 2025
Busque Philippe

SVP, GLOBAL SALES AND SERVICES

Sold $85.7K
8 tradesLast: Nov 18, 2025
Poirson Allen

SVP Marketing and Corp. Dev.

Bought $25.5KSold $85.1K
13 tradesLast: Nov 18, 2024
Williams Paul Christopher

CHIEF OPERATING OFFICER

Sold $63.5K
7 tradesLast: Aug 19, 2024
Jeanmonod Patrik

CHIEF FINANCIAL OFFICER

Sold $671.8K
27 tradesLast: Mar 11, 2024
Garland Jonathan Todd

Chief Commercial Officer

Sold $40.7K
2 tradesLast: Aug 18, 2023
Ball Jack

Director

Bought $51.0KSold $235.0K
2 tradesLast: Nov 14, 2022
Dion Gisele

Director

Bought $85.0K
1 tradesLast: Jul 22, 2021