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Yan Ming

Disclosed activity across 1 company

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21122
SEC CIK
0001874041

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Reported relationships

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CompanyLast reported asReport datePublished
Cytek Biosciences, Inc.CTKB · Entity 5345Director · CHIEF TECHNOLOGY OFFICERAugust 18, 2026August 20, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Cytek Biosciences, Inc.

Report date August 18, 2026 · Filed August 20, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect4,821,870 Ending reported balance After 2026-08-18 transaction · row 8
8 source rows · reconciled sequence

Row 1 · 2026-08-18 · Exercise / conversion · Acquired 7,363 · Balance 4,804,051

F1: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Row 2 · 2026-08-18 · Tax withholding · Disposed 1,778 · Balance 4,802,273

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.

Row 3 · 2026-08-18 · Exercise / conversion · Acquired 5,525 · Balance 4,807,798

F1: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Row 4 · 2026-08-18 · Tax withholding · Disposed 1,346 · Balance 4,806,452

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.

Row 5 · 2026-08-18 · Exercise / conversion · Acquired 6,162 · Balance 4,812,614

F1: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Row 6 · 2026-08-18 · Tax withholding · Disposed 1,501 · Balance 4,811,113

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.

Row 7 · 2026-08-18 · Exercise / conversion · Acquired 14,220 · Balance 4,825,333

F1: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Row 8 · 2026-08-18 · Tax withholding · Disposed 3,463 · Balance 4,821,870

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.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect17,189 Reported balance After 2026-08-18 transaction · row 9 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 9 · 2026-08-18 · Exercise / conversion · Disposed 7,363 · Balance 17,189

F1: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

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.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect34,995 Reported balance After 2026-08-18 transaction · row 10 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 10 · 2026-08-18 · Exercise / conversion · Disposed 5,525 · Balance 34,995

F1: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

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.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect63,688 Reported balance After 2026-08-18 transaction · row 11 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 11 · 2026-08-18 · Exercise / conversion · Disposed 6,162 · Balance 63,688

F1: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

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.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect203,835 Reported balance After 2026-08-18 transaction · row 12 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 12 · 2026-08-18 · Exercise / conversion · Disposed 14,220 · Balance 203,835

F1: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

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.

Filing footnotes · ownership attribution and instrument terms

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.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 19, 2024 Filed Aug 21, 2024 22:22 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionCommon Stock 5,525 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-24-021857 · form4-08212024_100846.xml · nonDerivative · entry 5

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,008,421

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
August 19, 2024 Filed Aug 21, 2024 22:22 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Tax withholdingCommon Stock 1,797 $5.53 $9,937.41
Disclosure

SEC source: 0001415889-24-021857 · form4-08212024_100846.xml · nonDerivative · entry 4

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,002,896

F2 · shares: Represents the number of shares withheld by and surrendered to the Issuer on August 19, 2024, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.

Read SEC document
August 19, 2024 Filed Aug 21, 2024 22:22 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionCommon Stock 7,363 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-24-021857 · form4-08212024_100846.xml · nonDerivative · entry 3

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,004,693

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
August 19, 2024 Filed Aug 21, 2024 22:22 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Tax withholdingCommon Stock 588 $5.53 $3,251.64
Disclosure

SEC source: 0001415889-24-021857 · form4-08212024_100846.xml · nonDerivative · entry 2

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,997,330

F2 · shares: Represents the number of shares withheld by and surrendered to the Issuer on August 19, 2024, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.

Read SEC document
August 19, 2024 Filed Aug 21, 2024 22:22 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionCommon Stock 1,981 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-24-021857 · form4-08212024_100846.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,997,918

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
May 20, 2024 Filed May 22, 2024 22:36 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionRestricted Stock Units · Derivative 3,683 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-014148 · form4-05222024_100556.xml · derivative · entry 9

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,718

Underlying: Common Stock · 3,683 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

F5 · derivative.exercise_date: 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 each March 10, 2025 and each March 10 thereafter.

F5 · derivative.expiration_date: 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 each March 10, 2025 and each March 10 thereafter.

Read SEC document
May 20, 2024 Filed May 22, 2024 22:36 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionRestricted Stock Units · Derivative 4,980 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-014148 · form4-05222024_100556.xml · derivative · entry 8

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,454

Underlying: Common Stock · 4,908 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

F4 · derivative.exercise_date: The shares subject to the RSU Award shall vest over four 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 each March 10, 2024 and each March 10 thereafter, until fully vested.

F4 · derivative.expiration_date: The shares subject to the RSU Award shall vest over four 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 each March 10, 2024 and each March 10 thereafter, until fully vested.

Read SEC document
May 20, 2024 Filed May 22, 2024 22:36 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionRestricted Stock Units · Derivative 1,981 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-014148 · form4-05222024_100556.xml · derivative · entry 7

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,218

Underlying: Common Stock · 1,981 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

F3 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: 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.

Read SEC document
May 20, 2024 Filed May 22, 2024 22:36 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Tax withholdingCommon Stock 1,093 $5.96 $6,514.28
Disclosure

SEC source: 0001415889-24-014148 · form4-05222024_100556.xml · nonDerivative · entry 6

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,995,937

F2 · shares: Represents the number of shares withheld by and surrendered to the Issuer on May 20, 2024, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.

Read SEC document
May 20, 2024 Filed May 22, 2024 22:36 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionCommon Stock 3,683 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-24-014148 · form4-05222024_100556.xml · nonDerivative · entry 5

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,997,030

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
May 20, 2024 Filed May 22, 2024 22:36 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Tax withholdingCommon Stock 1,456 $5.96 $8,677.76
Disclosure

SEC source: 0001415889-24-014148 · form4-05222024_100556.xml · nonDerivative · entry 4

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,993,347

F2 · shares: Represents the number of shares withheld by and surrendered to the Issuer on May 20, 2024, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.

Read SEC document
May 20, 2024 Filed May 22, 2024 22:36 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionCommon Stock 4,908 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-24-014148 · form4-05222024_100556.xml · nonDerivative · entry 3

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,994,803

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
May 20, 2024 Filed May 22, 2024 22:36 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Tax withholdingCommon Stock 588 $5.96 $3,504.48
Disclosure

SEC source: 0001415889-24-014148 · form4-05222024_100556.xml · nonDerivative · entry 2

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,989,895

F2 · shares: Represents the number of shares withheld by and surrendered to the Issuer on May 20, 2024, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.

Read SEC document
May 20, 2024 Filed May 22, 2024 22:36 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionCommon Stock 1,981 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-24-014148 · form4-05222024_100556.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,990,483

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
April 19, 2024 Filed Apr 23, 2024 22:07 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 SaleCommon Stock 20,000 $5.87 $117,400.00
Disclosure

SEC source: 0001415889-24-011390 · form4-04232024_100439.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,988,502

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 30, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.75 to $5.99, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
April 09, 2024 Filed Apr 11, 2024 22:17 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 SaleCommon Stock 400 $7.01 $2,804.00
Disclosure

SEC source: 0001415889-24-010714 · form4-04112024_100410.xml · nonDerivative · entry 2

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,008,502

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 30, 2023.

Read SEC document
April 09, 2024 Filed Apr 11, 2024 22:17 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 SaleCommon Stock 1,500 $7.00 $10,500.00
Disclosure

SEC source: 0001415889-24-010714 · form4-04112024_100410.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,008,902

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 30, 2023.

Read SEC document
March 19, 2024 Filed Mar 19, 2024 22:25 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 SaleCommon Stock 20,000 $6.71 $134,200.00
Disclosure

SEC source: 0001415889-24-008641 · form4-03192024_100347.xml · nonDerivative · entry 2

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,010,402

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 30, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.56 to $6.83, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
March 18, 2024 Filed Mar 19, 2024 22:25 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 SaleCommon Stock 20,000 $6.77 $135,400.00
Disclosure

SEC source: 0001415889-24-008641 · form4-03192024_100347.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,030,402

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 30, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.55 to $6.87, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
March 11, 2024 Filed Mar 13, 2024 22:55 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionRestricted Stock Units · Derivative 9,817 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-007872 · form4-03132024_100322.xml · derivative · entry 3

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,362

Underlying: Common Stock · 9,817 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

F3 · derivative.exercise_date: The shares subject to the RSU Award shall vest over four 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 each March 10, 2024 and each March 10 thereafter, until fully vested.

F3 · derivative.expiration_date: The shares subject to the RSU Award shall vest over four 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 each March 10, 2024 and each March 10 thereafter, until fully vested.

Read SEC document
March 11, 2024 Filed Mar 13, 2024 22:55 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Tax withholdingCommon Stock 2,911 $7.22 $21,017.42
Disclosure

SEC source: 0001415889-24-007872 · form4-03132024_100322.xml · nonDerivative · entry 2

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,050,402

F2 · shares: Represents the number of shares withheld by and surrendered to the Issuer on March 11, 2024, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.

Read SEC document
March 11, 2024 Filed Mar 13, 2024 22:55 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionCommon Stock 9,817 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-24-007872 · form4-03132024_100322.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,053,313

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
March 06, 2024 Filed Mar 8, 2024 23:52 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 GrantRestricted Stock Units · Derivative 88,401 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-007440 · form4-03082024_110327.xml · derivative · entry 2

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,401

Underlying: Common Stock · 88,401 shares

Expires not disclosed

F2 · derivative.exercise_price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

F3 · derivative.exercise_date: 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 each March 10, 2025 and each March 10 thereafter.

F3 · derivative.expiration_date: 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 each March 10, 2025 and each March 10 thereafter.

Read SEC document
March 06, 2024 Filed Mar 8, 2024 23:52 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 GrantEmployee Stock Option (right to buy) · Derivative 131,578 $0.00 Strike: $7.07 $0.00
Disclosure

SEC source: 0001415889-24-007440 · form4-03082024_110327.xml · derivative · entry 1

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,578

Underlying: Common Stock · 131,578 shares

Expires 2034-03-06

F1 · derivative.exercise_date: The shares subject to the option shall vest over 4 years with 1/48 of the total shares underlying the option vesting on April 6, 2024 and each month thereafter.

Read SEC document
February 20, 2024 Filed Feb 22, 2024 22:50 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionRestricted Stock Units · Derivative 1,981 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-004899 · form4-02222024_100239.xml · derivative · entry 3

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,199

Underlying: Common Stock · 1,981 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

F3 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: 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.

Read SEC document
February 20, 2024 Filed Feb 22, 2024 22:50 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Tax withholdingCommon Stock 588 $8.38 $4,927.44
Disclosure

SEC source: 0001415889-24-004899 · form4-02222024_100239.xml · nonDerivative · entry 2

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,043,496

F2 · shares: Represents the number of shares withheld by and surrendered to the Issuer on February 20, 2024, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.

Read SEC document
February 20, 2024 Filed Feb 22, 2024 22:50 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionCommon Stock 1,981 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-24-004899 · form4-02222024_100239.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,044,084

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
December 19, 2023 Filed Dec 21, 2023 22:35 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 SaleCommon Stock 20,000 $9.43 $188,600.00
Disclosure

SEC source: 0001209191-23-059472 · doc4.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,042,103

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 17, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.26 to $9.53, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
November 20, 2023 Filed Nov 21, 2023 22:59 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 SaleCommon Stock 20,000 $6.03 $120,600.00
Disclosure

SEC source: 0001209191-23-056353 · doc4.xml · nonDerivative · entry 5

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,762,103

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 17, 2022.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.88 to $6.11, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
November 18, 2023 Filed Nov 21, 2023 22:59 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionRestricted Stock Units · Derivative 7,363 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-056353 · doc4.xml · derivative · entry 7

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 98,179

Underlying: Common Stock · 7,363 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

F6 · derivative.exercise_date: The shares subject to the RSU Award shall vest over four 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 each March 10, 2024 and each March 10 thereafter, until fully vested.

F6 · derivative.expiration_date: The shares subject to the RSU Award shall vest over four 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 each March 10, 2024 and each March 10 thereafter, until fully vested.

Read SEC document
November 18, 2023 Filed Nov 21, 2023 22:59 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionRestricted Stock Units · Derivative 1,981 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-056353 · doc4.xml · derivative · entry 6

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,180

Underlying: Common Stock · 1,981 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

F5 · derivative.exercise_date: 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.

F5 · derivative.expiration_date: 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.

Read SEC document
November 18, 2023 Filed Nov 21, 2023 22:59 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Tax withholdingCommon Stock 2,431 $5.98 $14,537.38
Disclosure

SEC source: 0001209191-23-056353 · doc4.xml · nonDerivative · entry 4

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,782,103

F2 · shares: Represents the number of shares withheld by and surrendered to the Issuer on November 18, 2023, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.

Read SEC document
November 18, 2023 Filed Nov 21, 2023 22:59 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionCommon Stock 7,363 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-23-056353 · doc4.xml · nonDerivative · entry 3

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,784,534

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
November 18, 2023 Filed Nov 21, 2023 22:59 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Tax withholdingCommon Stock 772 $5.98 $4,616.56
Disclosure

SEC source: 0001209191-23-056353 · doc4.xml · nonDerivative · entry 2

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,777,171

F2 · shares: Represents the number of shares withheld by and surrendered to the Issuer on November 18, 2023, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.

Read SEC document
November 18, 2023 Filed Nov 21, 2023 22:59 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionCommon Stock 1,981 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-23-056353 · doc4.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,777,943

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
November 14, 2023 Filed Nov 28, 2023 01:48 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 GiftCommon Stock 1,700,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-056732 · doc4.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,062,103

Read SEC document
October 19, 2023 Filed Oct 24, 2023 00:36 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 SaleCommon Stock 20,000 $4.80 $96,000.00
Disclosure

SEC source: 0001209191-23-053410 · doc4.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,775,962

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 17, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.72 to $4.92, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
September 19, 2023 Filed Sep 20, 2023 22:27 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 SaleCommon Stock 20,000 $6.49 $129,800.00
Disclosure

SEC source: 0001209191-23-050201 · doc4.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,795,962

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 17, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.40 to $6.65, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
August 21, 2023 Filed Aug 22, 2023 00:08 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 SaleCommon Stock 20,000 $8.07 $161,400.00
Disclosure

SEC source: 0001209191-23-046824 · doc4.xml · nonDerivative · entry 5

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,815,962

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 17, 2022.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.83 to $8.37, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
August 18, 2023 Filed Aug 22, 2023 00:08 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionRestricted Stock Units · Derivative 7,363 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-046824 · doc4.xml · derivative · entry 7

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,542

Underlying: Common Stock · 7,363 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

F6 · derivative.exercise_date: The shares subject to the RSU Award shall vest over four 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 each March 10, 2024 and each March 10 thereafter, until fully vested.

F6 · derivative.expiration_date: The shares subject to the RSU Award shall vest over four 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 each March 10, 2024 and each March 10 thereafter, until fully vested.

Read SEC document
August 18, 2023 Filed Aug 22, 2023 00:08 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionRestricted Stock Units · Derivative 1,981 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-046824 · doc4.xml · derivative · entry 6

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,161

Underlying: Common Stock · 1,981 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

F5 · derivative.exercise_date: 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.

F5 · derivative.expiration_date: 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.

Read SEC document
August 18, 2023 Filed Aug 22, 2023 00:08 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Tax withholdingCommon Stock 2,868 $8.46 $24,263.28
Disclosure

SEC source: 0001209191-23-046824 · doc4.xml · nonDerivative · entry 4

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,835,962

F2 · shares: Represents the number of shares withheld by and surrendered to the Issuer on August 18, 2023, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.

Read SEC document
August 18, 2023 Filed Aug 22, 2023 00:08 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionCommon Stock 7,363 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-23-046824 · doc4.xml · nonDerivative · entry 3

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,838,830

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
August 18, 2023 Filed Aug 22, 2023 00:08 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Tax withholdingCommon Stock 772 $8.46 $6,531.12
Disclosure

SEC source: 0001209191-23-046824 · doc4.xml · nonDerivative · entry 2

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,831,467

F2 · shares: Represents the number of shares withheld by and surrendered to the Issuer on August 18, 2023, to satisfy tax withholding obligations that arose in connection with the vesting of the RSU Award.

Read SEC document
August 18, 2023 Filed Aug 22, 2023 00:08 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionCommon Stock 1,981 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-23-046824 · doc4.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,832,239

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
July 19, 2023 Filed Jul 20, 2023 22:19 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 SaleCommon Stock 20,000 $8.76 $175,200.00
Disclosure

SEC source: 0001209191-23-042952 · doc4.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,830,258

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 17, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.65 to $8.93, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
June 20, 2023 Filed Jun 21, 2023 22:29 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 SaleCommon Stock 20,000 $8.18 $163,600.00
Disclosure

SEC source: 0001209191-23-038904 · doc4.xml · nonDerivative · entry 1

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,850,258

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 17, 2022.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.02 to $8.35, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
May 19, 2023 Filed May 20, 2023 00:09 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 SaleCommon Stock 20,000 $7.19 $143,800.00
Disclosure

SEC source: 0001209191-23-031276 · doc4.xml · nonDerivative · entry 5

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,870,258

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 17, 2022.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.96 to $7.44, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
May 18, 2023 Filed May 20, 2023 00:09 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionRestricted Stock Units · Derivative 4,908 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-031276 · doc4.xml · derivative · entry 7

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 112,905

Underlying: Common Stock · 4,908 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

F6 · derivative.exercise_date: 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 each March 10, 2024 and each March 10 thereafter, until fully vested.

F6 · derivative.expiration_date: 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 each March 10, 2024 and each March 10 thereafter, until fully vested.

Read SEC document
May 18, 2023 Filed May 20, 2023 00:09 UTC Cytek Biosciences, Inc. CTKB · Entity 5345 Exercise / conversionRestricted Stock Units · Derivative 1,981 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-031276 · doc4.xml · derivative · entry 6

Yan Ming · CIK 0001874041 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,142

Underlying: Common Stock · 1,981 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.

F5 · derivative.exercise_date: 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.

F5 · derivative.expiration_date: 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.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.