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CTKB Exercise Disclosure
Mccombe William D. · SEC Form 4 · Filed Aug 20, 2026
Exercise
Reported value range
Not reported
Mccombe William D. Chief Financial Officer
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
- 6,320 shares
- SEC ownership
- Direct
- Transaction code
- M
- Form
- 4
- Filing identifier
- 0001878824-26-000004
Filing cohort
Transactions in this filing
Showing 9 of 9
Trades
9
Issuers
1
Estimated value
$55.59K
Buys / sales
0 / 0
| Issuer | Transaction | Traded | Value |
|---|---|---|---|
| Cytek Biosciences, Inc. CTKB | Disposition | Aug 18, 2026 | $9.86K |
| 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 | $20.51K |
| Cytek Biosciences, Inc. CTKB | Disposition | Aug 18, 2026 | $25.22K |
| Cytek Biosciences, Inc. CTKB | Exercise | Aug 18, 2026 | $0 |
| Cytek Biosciences, Inc. CTKB Current | 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 |