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CTKB Exercise Disclosure
Jiang Wenbin · SEC Form 4 · Filed Aug 20, 2026
Exercise
Reported value range
Not reported
Jiang Wenbin President And CEO
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
- 22,100 shares
- SEC ownership
- Direct
- Transaction code
- M
- Form
- 4
- Filing identifier
- 0001872873-26-000006
Filing cohort
Transactions in this filing
Showing 12 of 12
Trades
12
Issuers
1
Estimated value
$169.38K
Buys / sales
0 / 0
| Issuer | Transaction | Traded | Value |
|---|---|---|---|
| Cytek Biosciences, Inc. CTKB Current | Exercise | Aug 18, 2026 | Not reported |
| Cytek Biosciences, Inc. CTKB | Disposition | Aug 18, 2026 | $32.98K |
| Cytek Biosciences, Inc. CTKB | Disposition | Aug 18, 2026 | $25.13K |
| Cytek Biosciences, Inc. CTKB | Exercise | Aug 18, 2026 | Not reported |
| Cytek Biosciences, Inc. CTKB | Exercise | Aug 18, 2026 | Not reported |
| Cytek Biosciences, Inc. CTKB | Exercise | Aug 18, 2026 | $0 |
| Cytek Biosciences, Inc. CTKB | Disposition | Aug 18, 2026 | $13.4K |
| Cytek Biosciences, Inc. CTKB | Exercise | Aug 18, 2026 | Not reported |
| Cytek Biosciences, Inc. CTKB | Disposition | Aug 18, 2026 | $97.86K |
| Cytek Biosciences, Inc. CTKB | Exercise | Aug 18, 2026 | $0 |
| Cytek Biosciences, Inc. CTKB | Exercise | Aug 18, 2026 | $0 |
| Cytek Biosciences, Inc. CTKB | Exercise | Aug 18, 2026 | $0 |