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CYTEK BIOSCIENCES, INC. (CTKB)

Jiang Wenbin 🟡 adjusted position in 36.3K shares (4 derivative) of Cytek Biosciences, Inc. (CTKB) at $4.67 Transaction Date: Aug 18, 2026 | Filing ID: 000006

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  • News bot Aug. 20, 2026, 8:35 p.m.

    🔍 Jiang Wenbin (Executive)

    Company: Cytek Biosciences, Inc. (CTKB)

    Report Date: 2026-08-18

    Transaction Summary:

    • Total transactions: 12
    • Derivative instruments: 4
    • Holdings reported: 0
    • Total shares acquired: 120,095
    • Total shares sold: 156,364

    Detailed Transactions and Holdings:

    • Acquired 11,781 shares of Common Stock (Direct)
      Date: 2026-08-18 | Code: M | equity_swap_involved: 0 | shares_owned_after: 5,488,984.00 | transaction_form_type: 4 | Footnotes: F1
    • Sold 2,869 shares of Common Stock at $4.67 per share (Direct)
      Date: 2026-08-18 | Code: F | equity_swap_involved: 0 | shares_owned_after: 5,486,115.00 | transaction_form_type: 4 | Footnotes: F2
    • Acquired 22,100 shares of Common Stock (Direct)
      Date: 2026-08-18 | Code: M | equity_swap_involved: 0 | shares_owned_after: 5,508,215.00 | transaction_form_type: 4 | Footnotes: F1
    • Sold 5,382 shares of Common Stock at $4.67 per share (Direct)
      Date: 2026-08-18 | Code: F | equity_swap_involved: 0 | shares_owned_after: 5,502,833.00 | transaction_form_type: 4 | Footnotes: F2
    • Acquired 29,002 shares of Common Stock (Direct)
      Date: 2026-08-18 | Code: M | equity_swap_involved: 0 | shares_owned_after: 5,531,835.00 | transaction_form_type: 4 | Footnotes: F1
    • Sold 7,062 shares of Common Stock at $4.67 per share (Direct)
      Date: 2026-08-18 | Code: F | equity_swap_involved: 0 | shares_owned_after: 5,524,773.00 | transaction_form_type: 4 | Footnotes: F2
    • Acquired 57,212 shares of Common Stock (Direct)
      Date: 2026-08-18 | Code: M | equity_swap_involved: 0 | shares_owned_after: 5,581,985.00 | transaction_form_type: 4 | Footnotes: F1
    • Sold 20,956 shares of Common Stock at $4.67 per share (Direct)
      Date: 2026-08-18 | Code: F | equity_swap_involved: 0 | shares_owned_after: 5,561,029.00 | transaction_form_type: 4 | Footnotes: F2
    • Sold 11,781 shares of Restricted Stock Units (Derivative)
      Date: 2026-08-18 | Code: M | equity_swap_involved: 0 | shares_owned_after: 27,494.00 | transaction_form_type: 4 | Footnotes: F1, F3, F3
    • Sold 22,100 shares of Restricted Stock Units (Derivative)
      Date: 2026-08-18 | Code: M | equity_swap_involved: 0 | shares_owned_after: 139,973.00 | transaction_form_type: 4 | Footnotes: F1, F4, F4
    • Sold 29,002 shares of Restricted Stock Units (Derivative)
      Date: 2026-08-18 | Code: M | equity_swap_involved: 0 | shares_owned_after: 299,694.00 | transaction_form_type: 4 | Footnotes: F1, F5, F5
    • Sold 57,212 shares of Restricted Stock Units (Derivative)
      Date: 2026-08-18 | Code: M | equity_swap_involved: 0 | shares_owned_after: 820,054.00 | transaction_form_type: 4 | Footnotes: F1, F6, F6

    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 August 18, 2026 to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.
    • F3: The shares underlying the RSU Award shall vest over 4 years, with 2/48 of the total shares underlying the RSU Award vesting on May 18, 2023 and each May 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting on August 18, 2023 and each August 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting on November 18, 2023 and each November 18 thereafter; and 4/48 of the total shares underlying the RSU Award vesting on March 10, 2024 and each March 10 thereafter.
    • F4: The shares underlying 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.
    • F5: The shares underlying 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.
    • F6: The shares underlying 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 on August 18, 2026 and each August 18 thereafter; 3/48 of the total shares underlying the RSU Award vesting on 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.

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