Philippe Busque

Companies

• Cytek Biosciences, Inc.SVP, Global Sales and Services Aug 29, 2023 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• CBCytek Biosciences, Inc. CTKB43,466 shares²$228.2K at $5.25May 18, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• May 18, 2026Shares withheld for tax 1,424 shares at $3.55 of Cytek Biosciences, Inc.²
• May 18, 2026Exercised options 5,551 shares of Cytek Biosciences, Inc.²
• May 18, 2026Shares withheld for tax 620 shares at $3.55 of Cytek Biosciences, Inc.²
• May 18, 2026Exercised options 2,416 shares of Cytek Biosciences, Inc.²
• May 18, 2026Shares withheld for tax 378 shares at $3.55 of Cytek Biosciences, Inc.²
• May 18, 2026Exercised options 1,473 shares of Cytek Biosciences, Inc.²
• May 18, 2026Shares withheld for tax 263 shares at $3.55 of Cytek Biosciences, Inc.²
• May 18, 2026Exercised options 1,024 shares of Cytek Biosciences, Inc.²
• Mar 10, 2026Shares withheld for tax 1,496 shares at $4.23 of Cytek Biosciences, Inc.³
• Mar 10, 2026Exercised options 4,833 shares of Cytek Biosciences, Inc.³
• Mar 10, 2026Shares withheld for tax 912 shares at $4.23 of Cytek Biosciences, Inc.³
• Mar 10, 2026Exercised options 2,946 shares of Cytek Biosciences, Inc.³
• Mar 10, 2026Shares withheld for tax 635 shares at $4.23 of Cytek Biosciences, Inc.³
• Mar 10, 2026Exercised options 2,049 shares of Cytek Biosciences, Inc.³
• Nov 18, 2025Shares withheld for tax 927 shares at $5.53 of Cytek Biosciences, Inc.⁴
• Nov 18, 2025Exercised options 3,625 shares of Cytek Biosciences, Inc.⁴
• Nov 18, 2025Shares withheld for tax 565 shares at $5.53 of Cytek Biosciences, Inc.⁴
• Nov 18, 2025Exercised options 2,210 shares of Cytek Biosciences, Inc.⁴
• Nov 18, 2025Shares withheld for tax 393 shares at $5.53 of Cytek Biosciences, Inc.⁴
• Nov 18, 2025Exercised options 1,536 shares of Cytek Biosciences, Inc.⁴
• Aug 18, 2025Shares withheld for tax 1,412 shares at $4.06 of Cytek Biosciences, Inc.⁵
• Aug 18, 2025Exercised options 3,625 shares of Cytek Biosciences, Inc.⁵
• Aug 18, 2025Shares withheld for tax 861 shares at $4.06 of Cytek Biosciences, Inc.⁵
• Aug 18, 2025Exercised options 2,210 shares of Cytek Biosciences, Inc.⁵
• Aug 18, 2025Shares withheld for tax 599 shares at $4.06 of Cytek Biosciences, Inc.⁵