Ball Jack
SEC CIK 1873083 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| CTKB | Cytek Biosciences, Inc. | Dir | 86.7K | $51.0K | $235.0K | 6 | 2021-07-22 | 2026-06-10 |
Most active insiders at CTKB, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Busque Philippe | SVP, Gbl SALES AND SERVICES | — | — |
| 2 | Imper Vera | Dir | — | — |
| 3 | McCombe William D. | CFO | — | — |
| 4 | Yan Ming | CTO, Dir | — | — |
| 5 | Barnett Valerie | CLO | — | — |
| 6 | Ball Jack | Dir | — | — |
| 7 | Jiang Wenbin | Pres AND CEO, Dir | — | — |
| 8 | Holder Michael | Dir | — | — |
| 9 | Chin Richard | Dir | — | — |
| 10 | NEFF DEBORAH J | Dir | — | — |
Transactions 6
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-06-12 19:34 | 2026-06-10 | CTKB | Cytek Biosciences, Inc. | Ball Jack | Dir | M - OptEx | — | +44.0K | 86.7K | +103% | — |
| D | 2025-06-09 | 2025-06-05 | CTKB | Cytek Biosciences, Inc. | Ball Jack | Dir | M - OptEx | — | +15.7K | 42.7K | +58% | — |
| DM | 2022-11-30 | 2022-11-29 | CTKB | Cytek Biosciences, Inc. | Ball Jack | Dir | M - OptEx | $0.6889 | +24.0K | 13.7K | New | +$16.5K |
| D | 2022-11-16 | 2022-11-14 | CTKB | Cytek Biosciences, Inc. | Ball Jack | Dir | M - OptEx | $0.4 | +16.0K | 19.0K | +533% | +$6,400 |
| D | 2022-11-16 | 2022-11-14 | CTKB | Cytek Biosciences, Inc. | Ball Jack | Dir | S - Sale+OE | $14.69 | -16.0K | 3,000 | -84% | -$235.0K |
| 2021-07-27 | 2021-07-22 | CTKB | Cytek Biosciences, Inc. | Ball Jack | Dir | P - Purchase | $17.00 | +3,000 | 3,000 | New | +$51.0K |
Purchase Sale Sale after option exercise All abbreviations