Insider · CIK 0001873083
Jack Ball
Files at CTKB (Cytek Biosciences, Inc.). First filing -, latest -.
In brief
Jack Ball 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; Jack Ball has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
Transactions
Every row this insider has filed, 6 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 | - | - | 86,678 | 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 | - | - | 42,705 | 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 Jack Ball
Answered from the filings on this page, as of the latest one.
Is Jack Ball buying or selling?
Jack Ball has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did Jack Ball's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Jack Ball has 0.
Where does Jack Ball file Form 4?
Jack Ball 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.