Skip to main content

Cytek Biosciences, Inc.

CTKB
Exchange
Nasdaq
Industry
Laboratory Analytical Instruments
SEC CIK
0001831915

No open-market purchases or sales by Cytek Biosciences, Inc. insiders were filed in the last 90 days; 154 institutions reported holding it in 13F filings for Q2 2026, worth $361.0M in total; HHLR Advisors (Hillhouse) is the only superinvestor holding it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Cytek Biosciences, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
0 filings
Insiders trading
0
Net value
$0
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Cytek Biosciences, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Cytek Biosciences, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Jiang WenbinPRESIDENT AND CEO5,561,029Aug 20, 20265
McCombe William D.Chief Financial Officer134,693Aug 20, 20264
Muir Glenn PDirector3,086Aug 20, 20262
Holder MichaelDirector62,875Aug 20, 20265
Chin RichardDirector28,499Aug 20, 20265
Yan MingCHIEF TECHNOLOGY OFFICER4,821,870Aug 20, 20267
Feuchtwang IlanChief Legal Officer, Secretary–Aug 12, 20261
Neff Deborah JDirector59,679Jun 12, 20261
Ball JackDirector86,678Jun 12, 20261
Imper VeraDirector59,679Jun 12, 20261
Barnett ValerieCHIEF LEGAL OFFICER150,012May 20, 20264
Busque PhilippeSVP, GLOBAL SALES AND SERVICES43,466May 20, 20263
Hardison Don MDirector15,706Jun 9, 20250
Poirson AllenSVP BUS. AND CORP. DEV.59,981Nov 20, 20240
Williams Paul ChristopherCHIEF OPERATING OFFICER16,473Aug 21, 20240
Jeanmonod PatrikCHIEF FINANCIAL OFFICER97,465Mar 13, 20240
Garland Jonathan ToddChief Commercial Officer8,763Aug 21, 20230
Dion GiseleDirector5,000Jun 16, 20230
RA Capital Healthcare Fund LPDirector, 10% Owner13,381,054IndirectMar 16, 20220
Ra Capital Management, L.P.Director, 10% Owner13,381,054IndirectMar 16, 20220
Kolchinsky PeterDirector, 10% Owner13,381,054IndirectMar 16, 20220
Shah Rajeev M.Director, 10% Owner13,381,054IndirectMar 16, 20220
RA Capital Nexus Fund II, L.P.Director13,381,054IndirectMar 16, 20220
Deng FengDirector443,800IndirectJul 27, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Mar 7, 2023 (view filing)Mar 7Same dayJiang WenbinPresident and CEOSSale−20.0K$10.13−$202.6K−0.3%7.70M after
Mar 21, 2023 (view filing)Mar 201 dayYan MingChief Technology OfficerSSale−20.0K$9.29−$185.8K−0.3%7.91M after
Mar 24, 2023 (view filing)Mar 24Same dayJeanmonod PatrikChief Financial OfficerSSale−3.00K$8.33−$25.0K−2.6%111.2K after
Apr 11, 2023 (view filing)Apr 101 dayJiang WenbinPresident and CEOSSale−20.0K$8.88−$177.6K−0.3%7.68M after10b5-1
Apr 20, 2023 (view filing)Apr 191 dayYan MingChief Technology OfficerSSale−20.0K$9.71−$194.2K−0.3%7.89M after10b5-1
Apr 25, 2023 (view filing)Apr 241 dayJeanmonod PatrikChief Financial OfficerSSale−3.00K$10.24−$30.7K−2.7%108.2K after10b5-1
May 10, 2023 (view filing)May 82 daysJiang WenbinPresident and CEOSSale−20.0K$11.55−$231.0K−0.3%7.66M after10b5-1
May 19, 2023 (view filing)May 19Same dayYan MingChief Technology OfficerSSale−20.0K$7.19−$143.8K−0.3%7.87M after10b5-1
May 25, 2023 (view filing)May 241 dayJeanmonod PatrikChief Financial OfficerSSale−3.00K$7.76−$23.3K−2.7%107.8K after10b5-1
Jun 7, 2023 (view filing)Jun 7Same dayJiang WenbinPresident and CEOSSale−20.0K$8.23−$164.6K−0.3%7.65M after10b5-1
Jun 21, 2023 (view filing)Jun 201 dayYan MingChief Technology OfficerSSale−20.0K$8.18−$163.6K−0.3%7.85M after10b5-1
Jun 27, 2023 (view filing)Jun 261 dayJeanmonod PatrikChief Financial OfficerSSale−3.00K$7.96−$23.9K−2.8%104.8K after
Jul 7, 2023 (view filing)Jul 7Same dayJiang WenbinPresident and CEOSSale−20.0K$8.48−$169.6K−0.3%7.63M after10b5-1
Jul 20, 2023 (view filing)Jul 191 dayYan MingChief Technology OfficerSSale−20.0K$8.76−$175.2K−0.3%7.83M after10b5-1
Jul 25, 2023 (view filing)Jul 241 dayJeanmonod PatrikChief Financial OfficerSSale+3.00K$9.17+$27.5K+3.0%101.8K after10b5-1
Aug 8, 2023 (view filing)Aug 71 dayJiang WenbinPresident and CEOSSale−20.0K$9.04−$180.8K−0.3%7.61M after
Aug 21, 2023 (view filing)Aug 21Same dayYan MingChief Technology OfficerSSale−20.0K$8.07−$161.4K−0.3%7.82M after10b5-1
Aug 28, 2023 (view filing)Aug 244 daysJeanmonod PatrikChief Financial OfficerSSale−3.00K$7.69−$23.1K−2.9%102.1K after10b5-1
Sep 8, 2023 (view filing)Sep 71 dayJiang WenbinPresident and CEOSSale−20.0K$6.83−$136.6K−0.3%7.61M after
Sep 20, 2023 (view filing)Sep 191 dayYan MingChief Technology OfficerSSale−20.0K$6.49−$129.8K−0.3%7.80M after
Sep 26, 2023 (view filing)Sep 251 dayJeanmonod PatrikChief Financial OfficerSSale−3.00K$6.38−$19.1K−2.9%99.1K after10b5-1
Oct 11, 2023 (view filing)Oct 92 daysJiang WenbinPresident and CEOSSale−20.0K$5.33−$106.6K−0.4%5.30M after10b5-1
Oct 23, 2023 (view filing)Oct 194 daysYan MingChief Technology OfficerSSale−20.0K$4.80−$96.0K−0.3%7.78M after
Oct 25, 2023 (view filing)Oct 241 dayJeanmonod PatrikChief Financial OfficerSSale−3.00K$4.68−$14.0K−3.0%96.1K after10b5-1
Nov 8, 2023 (view filing)Nov 71 dayJiang WenbinPresident and CEOSSale−20.0K$4.34−$86.8K−0.4%5.28M after
Nov 21, 2023 (view filing)Nov 201 dayYan MingChief Technology OfficerSSale−20.0K$6.03−$120.6K−0.3%7.76M after
Nov 27, 2023 (view filing)Nov 243 daysJeanmonod PatrikChief Financial OfficerSSale−3.00K$6.94−$20.8K−3.0%96.4K after
Dec 21, 2023 (view filing)Dec 192 daysYan MingChief Technology OfficerSSale−20.0K$9.43−$188.6K−0.3%6.04M after
Dec 27, 2023 (view filing)Dec 261 dayJeanmonod PatrikChief Financial OfficerSSale−3.00K$9.50−$28.5K−3.1%93.4K after10b5-1
Mar 19, 2024 (view filing)Mar 18-191 dayYan MingCHIEF TECHNOLOGY OFFICERSSale−40.0K$6.74−$269.6K−0.7%6.01M after2 lots10b5-1
Apr 11, 2024 (view filing)Apr 92 daysYan MingCHIEF TECHNOLOGY OFFICERSSale−1.90K$7.00−$13.3K0.0%6.01M after2 lots
Apr 23, 2024 (view filing)Apr 194 daysYan MingCHIEF TECHNOLOGY OFFICERSSale−20.0K$5.87−$117.4K−0.3%5.99M after10b5-1
Jun 3, 2025 (view filing)Jun 21 dayMcCombe William D.Chief Financial OfficerPPurchase+35.0K$2.78+$97.3K+168.7%55.7K after