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4//SEC Filing

Yan Ming 4

Accession 0001874041-25-000002

CIK 0001831915other

Filed

Nov 19, 7:00 PM ET

Accepted

Nov 20, 7:09 PM ET

Size

26.0 KB

Accession

0001874041-25-000002

Insider Transaction Report

Form 4
Period: 2025-11-18
Yan Ming
DirectorCHIEF TECHNOLOGY OFFICER
Transactions
  • Exercise/Conversion

    Common Stock

    2025-11-18+1,9816,059,400 total
  • Tax Payment

    Common Stock

    2025-11-18$5.53/sh483$2,6716,058,917 total
  • Exercise/Conversion

    Common Stock

    2025-11-18+7,3636,066,280 total
  • Tax Payment

    Common Stock

    2025-11-18$5.53/sh1,793$9,9156,064,487 total
  • Exercise/Conversion

    Common Stock

    2025-11-18+6,1626,074,828 total
  • Exercise/Conversion

    Common Stock

    2025-11-18+5,5256,070,012 total
  • Exercise/Conversion

    Restricted Stock Units

    2025-11-185,52551,569 total
    Common Stock (5,525 underlying)
  • Tax Payment

    Common Stock

    2025-11-18$5.53/sh1,346$7,4436,068,666 total
  • Tax Payment

    Common Stock

    2025-11-18$5.53/sh1,501$8,3016,073,327 total
  • Exercise/Conversion

    Restricted Stock Units

    2025-11-181,9811,332 total
    Common Stock (1,981 underlying)
  • Exercise/Conversion

    Restricted Stock Units

    2025-11-187,36339,277 total
    Common Stock (7,363 underlying)
  • Exercise/Conversion

    Restricted Stock Units

    2025-11-186,16282,175 total
    Common Stock (6,162 underlying)
Footnotes (6)
  • [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 November 18, 2025, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.
  • [F3]The shares subject to the RSU Award shall vest quarterly over four years, with 4/48th of the total shares underlying the RSU Award vesting on May 18, 2022 and 3/48th of the total shares underlying the RSU Award vesting each subsequent quarter thereafter on August 18, November 18, February 18 and May 18.
  • [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, 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, until fully vested.
  • [F5]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.
  • [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, 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.

Issuer

Cytek Biosciences, Inc.

CIK 0001831915

Entity typeother

Related Parties

1
  • filerCIK 0001874041

Filing Metadata

Form type
4
Filed
Nov 19, 7:00 PM ET
Accepted
Nov 20, 7:09 PM ET
Size
26.0 KB