Key facts
- This page summarizes Paul Christopher Williams's Form 4 filing for Cytek Biosciences, Inc. (CTKB).
- 9 reported transactions and 3 derivative rows are listed below.
- Accepted by SEC: 21 Aug 2024, 18:21.
Paul Christopher Williams - 19 Aug 2024 Form 4 Insider Report for Cytek Biosciences, Inc. (CTKB)
- Reporting relationship
- CHIEF OPERATING OFFICER
- Issuer ticker
- CTKB
- Reported as of
- 19 Aug 2024
- Net transaction value
- -$23,198
- SEC form
- 4
- Accepted by SEC
- 21 Aug 2024, 18:21:19 UTC
- Prior SEC filing
- 22 May 2024
- Source filing
- View source filing
- Reporting owner signature
- /s/ Valerie Barnett, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Paul Christopher Williams filed Form 4 for Cytek Biosciences, Inc. (CTKB) on 21 Aug 2024.
Change
- Previous filing in this sequence was filed on 22 May 2024.
- Current net transaction value: -$23,198.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
CTKB
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +1,006
- Change %
- +10%
- Price
- Shares after
- 10,908
- Date
- 19 Aug 2024
- Ownership
- Direct
- Footnotes
- F1
CTKB
transaction
Common Stock
Tax liability
- Transaction value
- $2,168
- Shares
- -392
- Change %
- -3.6%
- Price
- $5.53
- Shares after
- 10,516
- Date
- 19 Aug 2024
- Ownership
- Direct
- Footnotes
- F2
CTKB
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +920
- Change %
- +8.7%
- Price
- Shares after
- 11,436
- Date
- 19 Aug 2024
- Ownership
- Direct
- Footnotes
- F1
CTKB
transaction
Common Stock
Tax liability
- Transaction value
- $1,985
- Shares
- -359
- Change %
- -3.1%
- Price
- $5.53
- Shares after
- 11,077
- Date
- 19 Aug 2024
- Ownership
- Direct
- Footnotes
- F2
CTKB
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +8,840
- Change %
- +80%
- Price
- Shares after
- 19,917
- Date
- 19 Aug 2024
- Ownership
- Direct
- Footnotes
- F1
CTKB
transaction
Common Stock
Tax liability
- Transaction value
- $19,045
- Shares
- -3,444
- Change %
- -17%
- Price
- $5.53
- Shares after
- 16,473
- Date
- 19 Aug 2024
- Ownership
- Direct
- Footnotes
- F2
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
CTKB
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- $0
- Shares
- -1,006
- Change %
- -10%
- Price
- $0.000000
- Shares after
- 9,063
- Date
- 19 Aug 2024
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,006
- Exercise price
- Footnotes
- F1, F3
CTKB
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- $0
- Shares
- -920
- Change %
- -8.8%
- Price
- $0.000000
- Shares after
- 9,513
- Date
- 19 Aug 2024
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 920
- Exercise price
- Footnotes
- F1, F4
CTKB
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- $0
- Shares
- -8,840
- Change %
- -6.5%
- Price
- $0.000000
- Shares after
- 126,709
- Date
- 19 Aug 2024
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 8,840
- Exercise price
- Footnotes
- F1, F5
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 5 footnotes
Footnote F1
Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.
Footnote F2
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.
Footnote F3
The shares subject to the RSU Award shall vest over 4 years with 12/48 of the total shares underlying the RSU Award vesting on November 18, 2023 and 3/48 of the total shares underlying the RSU Award vesting each subsequent quarter thereafter on February 18, May 18, August 18 and November 18.
Footnote 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.
Footnote 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.