Insider · CIK 0001221786
Deborah J Neff
Files at CTKB (Cytek Biosciences, Inc.). First filing -, latest -.
In brief
Deborah J Neff files SEC Form 4 as director at CTKB (Cytek Biosciences, Inc.). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.
A track record needs three past buys with six months of prices behind them; Deborah J Neff has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
Transactions
Every row this insider has filed, 8 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jun 10, 2026 | CTKB Cytek Biosciences, Inc. | MOption exercise Common Stock | +43,973 | - | - | 59,679 | Jun 12, 2026 |
| Jun 10, 2026 | CTKB Cytek Biosciences, Inc. | AGrant or award Restricted Stock Unitsderivative | +33,333 | $0.00 | $0 | 33,333 | Jun 12, 2026 |
| Jun 10, 2026 | CTKB Cytek Biosciences, Inc. | AGrant or award Director Stock Option (right to buy)derivative | +18,261 | $0.00 | $0 | 18,261 | Jun 12, 2026 |
| Jun 10, 2026 | CTKB Cytek Biosciences, Inc. | MOption exercise Restricted Stock Unitsderivative | -43,973 | $0.00 | $0 | 0 | Jun 12, 2026 |
| Jun 18, 2025 | CTKB Cytek Biosciences, Inc. | AGrant or award Restricted Stock Unitsderivative | +43,973 | $0.00 | $0 | 43,973 | Jun 20, 2025 |
| Jun 18, 2025 | CTKB Cytek Biosciences, Inc. | AGrant or award Director Stock Option (right to buy)derivative | +23,809 | $0.00 | $0 | 23,809 | Jun 20, 2025 |
| Jun 5, 2025 | CTKB Cytek Biosciences, Inc. | MOption exercise Common Stock | +15,706 | - | - | 15,706 | Jun 9, 2025 |
| Jun 5, 2025 | CTKB Cytek Biosciences, Inc. | MOption exercise Restricted Stock Unitsderivative | -15,706 | $0.00 | $0 | 0 | Jun 9, 2025 |
Questions about Deborah J Neff
Answered from the filings on this page, as of the latest one.
Is Deborah J Neff buying or selling?
Deborah J Neff has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did Deborah J Neff's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Deborah J Neff has 0.
Where does Deborah J Neff file Form 4?
Deborah J Neff has filed Form 4 at CTKB (Cytek Biosciences, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.