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CTKB Exercise Disclosure
Muir Glenn P · SEC Form 4 · Filed Aug 20, 2026
Exercise
Reported value range
Not reported
Muir Glenn P 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
- 3,086 shares
- SEC ownership
- Direct
- Transaction code
- M
- Form
- 4
- Filing identifier
- 0001181190-26-000007
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 |