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CYTEK BIOSCIENCES, INC. (CTKB)

Busque Philippe 🟡 adjusted position in 200.8K shares (5 derivative) of Cytek Biosciences, Inc. (CTKB) at $4.23 Transaction Date: Mar 10, 2026 | Filing ID: 000001

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  • News bot March 12, 2026, 8:39 p.m.

    🔍 Busque Philippe (Executive)

    Company: Cytek Biosciences, Inc. (CTKB)

    Report Date: 2026-03-10

    Transaction Summary:

    • Total transactions: 11
    • Derivative instruments: 5
    • Holdings reported: 0
    • Total shares acquired: 213,719
    • Total shares sold: 12,871

    Detailed Transactions and Holdings:

    • Acquired 2,049 shares of Common Stock (Direct)
      Date: 2026-03-10 | Code: M | equity_swap_involved: 0 | shares_owned_after: 30,951.00 | transaction_form_type: 4 | Footnotes: F1
    • Sold 635 shares of Common Stock at $4.23 per share (Direct)
      Date: 2026-03-10 | Code: F | equity_swap_involved: 0 | shares_owned_after: 30,316.00 | transaction_form_type: 4 | Footnotes: F2
    • Acquired 2,946 shares of Common Stock (Direct)
      Date: 2026-03-10 | Code: M | equity_swap_involved: 0 | shares_owned_after: 33,262.00 | transaction_form_type: 4 | Footnotes: F1
    • Sold 912 shares of Common Stock at $4.23 per share (Direct)
      Date: 2026-03-10 | Code: F | equity_swap_involved: 0 | shares_owned_after: 32,350.00 | transaction_form_type: 4 | Footnotes: F2
    • Acquired 4,833 shares of Common Stock (Direct)
      Date: 2026-03-10 | Code: M | equity_swap_involved: 0 | shares_owned_after: 37,183.00 | transaction_form_type: 4 | Footnotes: F1
    • Sold 1,496 shares of Common Stock at $4.23 per share (Direct)
      Date: 2026-03-10 | Code: F | equity_swap_involved: 0 | shares_owned_after: 35,687.00 | transaction_form_type: 4 | Footnotes: F2
    • Acquired 70,665 shares of Employee Stock Option (right to buy) at $4.23 per share (Derivative)
      Date: 2026-03-10 | Code: A | Expires: 2036-03-09 | equity_swap_involved: 0 | shares_owned_after: 70,665.00 | transaction_form_type: 4 | Footnotes: F3
    • Acquired 133,226 shares of Restricted Stock Units (Derivative)
      Date: 2026-03-10 | Code: A | equity_swap_involved: 0 | shares_owned_after: 133,226.00 | transaction_form_type: 4 | Footnotes: F1, F4, F4
    • Sold 2,049 shares of Restricted Stock Units (Derivative)
      Date: 2026-03-10 | Code: M | equity_swap_involved: 0 | shares_owned_after: 6,665.00 | transaction_form_type: 4 | Footnotes: F1, F5, F5
    • Sold 2,946 shares of Restricted Stock Units (Derivative)
      Date: 2026-03-10 | Code: M | equity_swap_involved: 0 | shares_owned_after: 17,682.00 | transaction_form_type: 4 | Footnotes: F1, F6, F6
    • Sold 4,833 shares of Restricted Stock Units (Derivative)
      Date: 2026-03-10 | Code: M | equity_swap_involved: 0 | shares_owned_after: 43,505.00 | transaction_form_type: 4 | Footnotes: F1, F7, F7

    Footnotes:

    • F1: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.
    • F2: Represents the number of shares withheld by and surrendered to the Issuer on March 10, 2026, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.
    • F3: The shares subject to the stock option shall vest over 4 years with 1/48 of the total shares underlying the stock option vesting on April 10, 2026 and each month thereafter until fully vested.
    • F4: The shares subject to the RSU Award shall vest over 4 years with 2/48 of the total shares underlying the RSU Award vesting on May 18, 2026 and each May 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting August 18, 2026 and each August 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting November 18, 2026 and each November 18 thereafter; and 4/48 of the total shares underlying the RSU Award vesting on March 10, 2027 and each March 10 thereafter, until fully vested.
    • F5: The shares subject to the RSU Award shall vest over four years with 13/48 of the total shares underlying the RSU Award vesting on May 18, 2024; 3/48 of the total shares underlying the RSU Award vesting on August 18, 2024 and each August 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting on November 18, 2024 and each November 18 thereafter; 4/48 of the total shares underlying the RSU Award vesting on March 10, 2025 and each March 10 thereafter; and 2/48 of the total shares underlying the RSU Award vesting on May 18, 2025 and each May 18 thereafter.
    • F6: The shares subject to the RSU Award shall vest over 4 years with 2/48 of the total shares underlying the RSU Award vesting on May 18, 2024 and each May 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting on August 18, 2024 and each August 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting on November 18, 2024 and each November 18 thereafter; and 4/48 of the total shares underlying the RSU Award vesting on March 10, 2025 and each March 10 thereafter.
    • F7: The shares subject to the RSU Award shall vest over 4 years with 2/48 of the total shares underlying the RSU Award vesting on May 18, 2025 and each May 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting on August 18, 2025 and each August 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting on November 18, 2025 and each November 18 thereafter; and 4/48 of the total shares underlying the RSU Award vesting on March 10, 2026 and each March 10 thereafter, until fully vested.

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