Chin Richard 4
4 · Cytek Biosciences, Inc. · Filed Mar 12, 2026
Research Summary
AI-generated summary of this filing
Cytek (CTKB) Director Richard Chin Converts RSUs into 6,107 Shares
What Happened
- Richard Chin, a director of Cytek Biosciences (CTKB), had 6,107 restricted stock units convert to 6,107 shares on March 10, 2026 (reported as a derivative conversion/exercise, code M). The filing also shows a simultaneous disposition of 6,107 shares at $0.00. No cash purchase or sale proceeds are reported.
- This was not a market purchase or cash sale. Converting RSUs to shares and showing a $0.00 disposition is commonly used for net share settlement or to satisfy tax-withholding obligations, rather than an open-market sale.
Key Details
- Transaction date: March 10, 2026; Form 4 filed March 12, 2026.
- Reported transactions: 6,107 shares acquired via conversion/exercise (derivative); 6,107 shares disposed at $0.00 (derivative).
- Price/value: Acquired price listed as N/A; disposed price listed as $0.00 (no cash proceeds reported).
- Shares owned after transaction: Not disclosed in the filing.
- Footnotes: F1 — each RSU converts to one share; F2 — this transaction reflects the vesting schedule (3/36 of the award vested on March 10, 2026).
Context
- These were RSU conversions (not option purchases). When converted RSUs are immediately reported as disposed at $0.00, it typically indicates net settlement or withholding to cover taxes rather than an active market sale. Such transactions are routine for vested equity awards and do not necessarily signal a change in insider sentiment.
Insider Transaction Report
Form 4
Chin Richard
Director
Transactions
- Exercise/Conversion
Common Stock
[F1]2026-03-10+6,107→ 16,285 total - Exercise/Conversion
Restricted Stock Units
[F1][F2]2026-03-10−6,107→ 57,004 total→ Common Stock (6,107 underlying)
Footnotes (2)
- [F1]Each Restricted Stock Unit (the "RSU Award") represents a contingent right to receive one share of the Issuer's common stock.
- [F2]2/36 of the total shares subject to the RSU Award shall vest on August 18, 2025; 3/36 of the total shares subject to the RSU Award shall vest on November 18, 2025 and each November 18 thereafter; 3/36 of the total shares underlying the RSU Award shall vest on March 10, 2026 and each March 10 thereafter; 3/36 of the total shares underlying the RSU Award vesting shall vest on May 18, 2026 and each May 18 thereafter; and 3/36 of the total shares underlying the RSU Award shall vest on August 18, 2026 and each August 18 thereafter, until fully vested.
Signature
/s/ Valerie Barnett, Attorney-in-Fact|2026-03-12