Jiang Wenbin 4
4 · Cytek Biosciences, Inc. · Filed Feb 20, 2026
Research Summary
AI-generated summary of this filing
Cytek (CTKB) CEO Jiang Wenbin Converts RSUs; Shares Withheld for Taxes
What Happened Jiang Wenbin, President, CEO and a director of Cytek Biosciences (CTKB), had 4,514 restricted stock units (RSUs) convert into common shares on February 18, 2026. No cash was paid to convert these RSUs (conversion/exercise recorded at $0.00). To satisfy tax withholding obligations, 1,339 of the resulting shares were withheld and surrendered to the company at an indicated per-share value of $4.20, totaling $5,624.
Key Details
- Transaction date: February 18, 2026.
- Primary action: Conversion/exercise of 4,514 RSUs into common stock (derivative transaction code M).
- Tax withholding: 1,339 shares surrendered to issuer to cover withholding (code F) at $4.20/share = $5,624.
- Reported prices/values: Conversion recorded at $0.00 per share (no exercise price); tax withholding valued at $4.20/share.
- Shares owned after transaction: Not reported in the provided filing excerpt.
- Relevant footnotes: F1 = each RSU converts to one common share; F2 = withheld shares surrendered to issuer for taxes; F3 = RSUs vest quarterly over four years (vesting schedule described).
- Timeliness: No late filing indicated in the provided information.
Context This was not an open-market buy or sale but a routine RSU vesting and share-withholding to meet tax obligations (a cashless-style settlement). Such transactions reflect compensation vesting rather than a direct purchase or sale signal; they do not necessarily indicate insider buying or selling intent.
Insider Transaction Report
- Exercise/Conversion
Common Stock
[F1]2026-02-18+4,514→ 5,361,166 total - Tax Payment
Common Stock
[F2]2026-02-18$4.20/sh−1,339$5,624→ 5,359,827 total - Exercise/Conversion
Restricted Stock Units
[F1][F3]2026-02-18−4,514→ 0 total→ Common Stock (4,514 underlying)
Footnotes (3)
- [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 February 18, 2026, 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.