Johnston John Joseph
SEC CIK 1874850 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| MXCT | MAXCYTE, INC. | Dir | 201.6K | — | $389.1K | 37 | 2023-06-26 | 2026-06-17 |
Most active insiders at MXCT, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Swirsky Douglas J | CFO | — | $8,316 |
| 2 | Ahuja Parmeet | CFO | — | — |
| 3 | Johnston John Joseph | Dir | — | — |
| 4 | Masoud Maher | Pres, CEO, Dir | — | — |
| 5 | Hemrajani Rekha | Dir | — | — |
| 6 | Al-Wakeel Yasir B. | Dir | — | — |
| 7 | Brooke William W | Dir | — | — |
| 8 | Collins Cynthia | Dir | — | — |
| 9 | Erck Stanley C | Dir | — | — |
| 10 | BALTHROP PATRICK J | Dir | — | — |
Transactions 37
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-06-22 16:29 | 2026-06-17 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | A - Grant | $0.00 | +30.4K | 201.6K | +18% | $0 |
| D | 2025-06-23 | 2025-06-18 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | A - Grant | $0.00 | +29.2K | 171.2K | +21% | $0 |
| D | 2025-01-29 | 2025-01-27 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $4.65 | -3,000 | 141.9K | -2% | -$14.0K |
| D | 2025-01-29 | 2025-01-27 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $2.93 | +3,000 | 144.9K | +2% | +$8,790 |
| D | 2024-12-30 | 2024-12-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $2.93 | +3,000 | 144.9K | +2% | +$8,790 |
| D | 2024-12-30 | 2024-12-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $4.01 | -3,000 | 141.9K | -2% | -$12.0K |
| DM | 2024-12-10 | 2024-12-06+ | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $3.77 | -3,000 | 141.9K | -2% | -$11.3K |
| DM | 2024-12-10 | 2024-12-06+ | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $2.45 | +3,000 | 142.5K | +2% | +$7,344 |
| D | 2024-10-30 | 2024-10-28 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $3.72 | -3,000 | 141.9K | -2% | -$11.2K |
| D | 2024-10-30 | 2024-10-28 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $2.93 | +3,000 | 144.9K | +2% | +$8,790 |
| D | 2024-09-30 | 2024-09-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $3.82 | -3,000 | 141.9K | -2% | -$11.5K |
| D | 2024-09-30 | 2024-09-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $2.93 | +3,000 | 144.9K | +2% | +$8,790 |
| D | 2024-08-28 | 2024-08-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $2.93 | +3,000 | 144.9K | +2% | +$8,790 |
| D | 2024-08-28 | 2024-08-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $4.28 | -3,000 | 141.9K | -2% | -$12.8K |
| D | 2024-07-30 | 2024-07-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $2.93 | +3,000 | 144.9K | +2% | +$8,790 |
| D | 2024-07-30 | 2024-07-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $4.75 | -3,000 | 141.9K | -2% | -$14.2K |
| DM | 2024-07-01 | 2024-06-27 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $2.28 | +10.0K | 151.9K | +7% | +$22.8K |
| D | 2024-07-01 | 2024-06-27 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $3.99 | -10.0K | 141.9K | -7% | -$39.9K |
| D | 2024-06-13 | 2024-06-11 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | A - Grant | $0.00 | +21.4K | 141.9K | +18% | $0 |
| D | 2024-03-28 | 2024-03-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $2.14 | +5,000 | 125.6K | +4% | +$10.7K |
| D | 2024-03-28 | 2024-03-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $4.41 | -5,000 | 120.6K | -4% | -$22.1K |
| D | 2024-02-28 | 2024-02-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $4.60 | -5,000 | 120.6K | -4% | -$23.0K |
| D | 2024-02-28 | 2024-02-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $2.14 | +5,000 | 125.6K | +4% | +$10.7K |
| D | 2024-01-30 | 2024-01-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $2.14 | +5,000 | 125.6K | +4% | +$10.7K |
| D | 2024-01-30 | 2024-01-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $5.12 | -5,000 | 120.6K | -4% | -$25.6K |
| D | 2023-12-28 | 2023-12-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $4.53 | -5,000 | 120.6K | -4% | -$22.6K |
| D | 2023-12-28 | 2023-12-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $2.14 | +5,000 | 125.6K | +4% | +$10.7K |
| D | 2023-11-29 | 2023-11-27 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $4.59 | -5,000 | 120.6K | -4% | -$22.9K |
| D | 2023-11-29 | 2023-11-27 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $2.14 | +5,000 | 125.6K | +4% | +$10.7K |
| DM | 2023-11-16 | 2023-11-14 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $1.70 | +10.0K | 130.6K | +8% | +$17.0K |
| D | 2023-11-16 | 2023-11-14 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $3.71 | -10.0K | 120.6K | -8% | -$37.1K |
| DM | 2023-08-30 | 2023-08-28+ | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $1.64 | +5,000 | 120.7K | +4% | +$8,200 |
| DM | 2023-08-30 | 2023-08-28+ | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $3.70 | -5,000 | 120.6K | -4% | -$18.5K |
| D | 2023-07-28 | 2023-07-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $1.64 | +5,000 | 125.6K | +4% | +$8,200 |
| D | 2023-07-28 | 2023-07-26 | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $4.75 | -5,000 | 120.6K | -4% | -$23.8K |
| DM | 2023-06-28 | 2023-06-26+ | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | M - OptEx | $1.34 | +15.0K | 127.4K | +13% | +$20.1K |
| DM | 2023-06-28 | 2023-06-26+ | MXCT | MAXCYTE, INC. | Johnston John Joseph | Dir | S - Sale+OE | $4.44 | -15.0K | 120.6K | -11% | -$66.6K |
Purchase Sale Sale after option exercise All abbreviations