Cytek director converts 6,107 RSUs into shares
Cytek Biosciences, Inc. (CTKB) director Richard Chin reported an exercise and conversion of 6,107 Restricted Stock Units (RSUs) into 6,107 shares of Common Stock on August 18, 2026.
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Form Type
4
Rhea-AI Filing Summary
Cytek Biosciences, Inc. (CTKB) director Richard Chin reported an exercise and conversion of 6,107 Restricted Stock Units (RSUs) into 6,107 shares of Common Stock on August 18, 2026. Following this transaction, he directly held 28,499 shares of Common Stock and 44,790 RSUs. Each RSU represents a contingent right to receive one share of common stock, with the RSU award vesting in scheduled tranches between August 18, 2025 and August 18, 2026.
Insider Trade Summary
6,107 shares exercised/converted
Exercise
2 txns
Insider
Chin Richard
Role
Director
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Restricted Stock Units F1, F2 | 6,107 | $0.00 | $0.00 |
| Exercise | Common Stock F1 | 6,107 | -- | -- |
Holdings After Transaction:
Restricted Stock Units — 44,790 contracts (Direct);
Common Stock — 28,499 shares (Direct)
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. The shares underlying the RSU Award shall vest over 3 years, with 2/36 of the total shares underlying the RSU Award vesting on August 18, 2025; 3/36 of the total shares underlying the RSU Award vesting on November 18, 2025 and each November 18 thereafter; 3/36 of the total shares underlying the RSU Award vesting on March 10, 2026 and each March 10 thereafter; 3/36 of the total shares underlying the RSU Award vesting on May 18, 2026 and each May 18 thereafter; and 3/36 of the total shares underlying the RSU Award vesting on August 18, 2026 and each August 18 thereafter.
Key Figures
RSUs Exercised/Converted: 6,107 Restricted Stock Units
Common Stock Holdings After Transaction: 28,499 shares
RSU Holdings After Transaction: 44,790 Restricted Stock Units
+2 more
5 metrics
RSUs Exercised/Converted
6,107 Restricted Stock Units
Exercised and converted into common stock on August 18, 2026
Common Stock Holdings After Transaction
28,499 shares
Directly held by Richard Chin after the August 18, 2026 transaction
RSU Holdings After Transaction
44,790 Restricted Stock Units
RSUs remaining after the reported exercise/conversion
Initial RSU Tranche Vesting
2/36 of total RSU shares
Vests on August 18, 2025
Subsequent RSU Tranche Vesting
3/36 of total RSU shares
Vests on each November 18, March 10, May 18, and August 18 thereafter
Key Terms
Restricted Stock Units, contingent right, vest
3 terms
Restricted Stock Units financial
"Each Restricted Stock Unit (the "RSU Award") represents a contingent right"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
contingent right financial
"represents a contingent right to receive one share of the Issuer's common"
vest financial
"shares underlying the RSU Award shall vest over 3 years, with 2/36 of"
A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider transaction did CTKB director Richard Chin report on August 18, 2026?
Richard Chin reported exercising and converting 6,107 Restricted Stock Units into 6,107 shares of Cytek Biosciences (CTKB) Common Stock on August 18, 2026, as part of an RSU award vesting schedule.
How many Restricted Stock Units does Richard Chin still hold in CTKB after the transaction?
Following the August 18, 2026 exercise, Richard Chin holds 44,790 Restricted Stock Units (RSUs) tied to Cytek Biosciences (CTKB), each representing a contingent right to receive one share of common stock.
What does each RSU reported by Richard Chin for Cytek Biosciences (CTKB) represent?
Each Restricted Stock Unit (RSU Award) reported by Richard Chin represents a contingent right to receive one share of Cytek Biosciences (CTKB) common stock, subject to the vesting schedule described in the award.
What is the vesting schedule of Richard Chin’s RSU award at Cytek Biosciences (CTKB)?
The RSU award vests over 3 years: 2/36 of the total shares vest on August 18, 2025, and 3/36 vest on each of November 18, March 10, May 18, and August 18 in subsequent years, as specified.
Was Richard Chin’s CTKB transaction classified as a buy or sell?
The Form 4 classifies the event as an exercise or conversion of a derivative security (code M), converting 6,107 RSUs into 6,107 shares of common stock, rather than an open-market purchase or sale.
AI-generated analysis. How Rhea-AI works. Not financial advice.
