Updated Jul 16, 2026
Barnett Valerie has filed 1 SEC Form 4 filing across 1 company in the last 90 days.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-20 | CTKB | Cytek Biosciences, Inc. | F — Tax withholding / forfeiture | 3.4K | $3.55 | $12K |
| 2026-05-20 | CTKB | Cytek Biosciences, Inc. | M — Option exercise | 9.4K | — | |
| 2026-05-20 | CTKB | Cytek Biosciences, Inc. | F — Tax withholding / forfeiture | 2.6K | $3.55 | $9K |
| 2026-05-20 | CTKB | Cytek Biosciences, Inc. | M — Option exercise | 7.2K | — | |
| 2026-05-20 | CTKB | Cytek Biosciences, Inc. | F — Tax withholding / forfeiture | 1.9K | $3.55 | $7K |
| 2026-05-20 | CTKB | Cytek Biosciences, Inc. | M — Option exercise | 5.2K | — | |
| 2026-05-20 | CTKB | Cytek Biosciences, Inc. | F — Tax withholding / forfeiture | 881 | $3.55 | $3K |
| 2026-05-20 | CTKB | Cytek Biosciences, Inc. | M — Option exercise | 2.5K | — | |
| 2026-03-12 | CTKB | Cytek Biosciences, Inc. | F — Tax withholding / forfeiture | 5.7K | $4.23 | $24K |
| 2026-03-12 | CTKB | Cytek Biosciences, Inc. | M — Option exercise | 14.5K | — | |
| 2026-03-12 | CTKB | Cytek Biosciences, Inc. | F — Tax withholding / forfeiture | 4.2K | $4.23 | $18K |
| 2026-03-12 | CTKB | Cytek Biosciences, Inc. | M — Option exercise | 10.3K | — | |
| 2026-03-12 | CTKB | Cytek Biosciences, Inc. | F — Tax withholding / forfeiture | 1.8K | $4.23 | $7K |
| 2026-03-12 | CTKB | Cytek Biosciences, Inc. | M — Option exercise | 4.9K | — | |
| 2026-02-20 | CTKB | Cytek Biosciences, Inc. | F — Tax withholding / forfeiture | 525 | $4.20 | $2K |
| 2026-02-20 | CTKB | Cytek Biosciences, Inc. | M — Option exercise | 1.3K | — | |
| 2025-08-18 | CTKB | Cytek Biosciences, Inc. | F — Tax withholding / forfeiture | 3.6K | $4.06 | $15K |
| 2025-08-18 | CTKB | Cytek Biosciences, Inc. | M — Option exercise | 10.9K | — | |
| 2025-08-18 | CTKB | Cytek Biosciences, Inc. | F — Tax withholding / forfeiture | 3.0K | $4.06 | $12K |
| 2025-08-18 | CTKB | Cytek Biosciences, Inc. | M — Option exercise | 7.7K | — |
Barnett Valerie is a corporate insider — currently tracked as Insider of Cytek Biosciences, Inc. (CTKB). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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