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CTKB Exercise Disclosure
Chin Richard · SEC Form 4 · Filed Aug 20, 2026
Exercise
Reported value range
Not reported
Chin Richard Director
CTKB
Cytek Biosciences
CTKB
Transaction date
Aug 18, 2026
Public filing date
Aug 20, 2026
Filing lag
Filed 2 days later
CTKB daily price context
Close on/before transaction
$4.67
Aug 18, 2026
First close after public filing
$4.81
Aug 21, 2026
30-day return after filing
+9.77%
Through Sep 21, 2026
Source details
- Reported owner
- Not disclosed
- Source asset code
- Security
- Security
- Common Stock
- Quantity / price
- 6,107 shares
- SEC ownership
- Direct
- Transaction code
- M
- Form
- 4
- Filing identifier
- 0001337252-26-000005
Filing cohort
Transactions in this filing
Showing 2 of 2
Trades
2
Issuers
1
Estimated value
$0
Buys / sales
0 / 0
| Issuer | Transaction | Traded | Value |
|---|---|---|---|
| Cytek Biosciences, Inc. CTKB | Exercise | Aug 18, 2026 | $0 |
| Cytek Biosciences, Inc. CTKB Current | Exercise | Aug 18, 2026 | Not reported |