Griffith Joseph H. IV
SEC CIK 1431531 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| MASS | 908 Devices Inc. | CFO | 121.5K | — | $3.76M | 30 | 2021-09-08 | 2026-08-25 |
Most active insiders at MASS, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | AWM Investment Company, Inc. | 10% | — | $3.68M |
| 2 | Knopp Kevin J. | Pres, CEO, Dir | — | $2.55M |
| 3 | Brown Christopher D. | Dir | — | $1.81M |
| 4 | Kenneweg John | SVP, Sales, Product Marketing | — | $481.3K |
| 5 | Griffith Joseph H. IV | CFO | — | $376.6K |
| 6 | McCallion Kevin J. | SVP, Products, Production | — | $188.1K |
| 7 | Vann Brandi C | Dir | — | — |
| 8 | Leonhart Michele M. | Dir | — | — |
| 9 | Spoto Mark | Dir | — | — |
| 10 | Hunt Anthony | Dir | — | — |
Transactions 30
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T | 2026-08-27 16:55 | 2026-08-25 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale | $10.95 | -11.5K | 121.5K | -9% | -$125.5K |
| T | 2026-05-29 16:15 | 2026-05-28 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale | $9.03 | -6,940 | 133.0K | -5% | -$62.7K |
| D | 2026-02-03 | 2026-02-02 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale+OE | $6.18 | -23.2K | 139.9K | -14% | -$143.2K |
| DM | 2026-02-03 | 2026-02-01 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | M - OptEx | — | +70.1K | 163.1K | +75% | — |
| M | 2025-10-06 | 2025-10-02+ | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale | $9.05 | -5,000 | 97.2K | -5% | -$45.2K |
| 2025-09-23 | 2025-09-19 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale | $7.07 | -5,000 | 97.9K | -5% | -$35.4K | |
| 2025-06-06 | 2025-06-04 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale | $7.08 | -6,940 | 102.9K | -6% | -$49.1K | |
| DM | 2025-02-04 | 2025-02-01 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | M - OptEx | — | +26.7K | 120.1K | +29% | — |
| DM | 2025-02-04 | 2025-02-03 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale+OE | $2.34 | -10.2K | 109.9K | -9% | -$24.0K |
| D | 2024-03-27 | 2024-03-26 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | M - OptEx | $1.58 | +8,437 | 93.4K | +10% | +$13.3K |
| DM | 2024-02-02 | 2024-02-01 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | M - OptEx | — | +15.4K | 95.4K | +19% | — |
| DM | 2024-02-02 | 2024-02-01+ | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale+OE | $7.06 | -15.4K | 93.5K | -14% | -$108.7K |
| 2024-01-02 | 2023-12-28 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale | $12.08 | -6,000 | 80.0K | -7% | -$72.5K | |
| 2023-12-21 | 2023-12-19 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale | $9.08 | -5,580 | 86.0K | -6% | -$50.7K | |
| D | 2023-03-23 | 2023-03-22 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | M - OptEx | $1.58 | +5,000 | 96.6K | +5% | +$7,900 |
| D | 2023-02-03 | 2023-02-01 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | M - OptEx | — | +5,102 | 96.7K | +6% | — |
| DM | 2023-02-03 | 2023-02-01+ | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale+OE | $9.72 | -5,102 | 91.6K | -5% | -$49.6K |
| DM | 2022-08-05 | 2022-08-03+ | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale+OE | $24.39 | -13.3K | 91.6K | -13% | -$325.1K |
| DM | 2022-08-05 | 2022-08-03+ | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | M - OptEx | $0.96 | +13.3K | 104.3K | +15% | +$12.8K |
| DM | 2022-06-27 | 2022-06-24+ | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale+OE | $19.12 | -18.2K | 91.6K | -17% | -$347.7K |
| DM | 2022-06-27 | 2022-06-24+ | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | M - OptEx | $0.96 | +18.2K | 104.7K | +21% | +$17.5K |
| DM | 2022-06-22 | 2022-06-17+ | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale+OE | $15.05 | -9,000 | 91.6K | -9% | -$135.5K |
| DM | 2022-06-22 | 2022-06-17+ | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | M - OptEx | $0.96 | +9,000 | 99.7K | +10% | +$8,640 |
| D | 2022-06-17 | 2022-06-15 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | M - OptEx | $0.96 | +1,000 | 92.6K | +1% | +$960 |
| D | 2022-06-17 | 2022-06-15 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale+OE | $15.02 | -1,000 | 91.6K | -1% | -$15.0K |
| D | 2022-06-15 | 2022-06-13 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | M - OptEx | $0.96 | +13.3K | 104.9K | +15% | +$12.8K |
| D | 2022-06-15 | 2022-06-13 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale+OE | $13.54 | -13.3K | 91.6K | -13% | -$180.5K |
| 2021-11-05 | 2021-11-05 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale | $39.08 | -2,800 | 88.8K | -3% | -$109.4K | |
| DM | 2021-09-10 | 2021-09-08 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | S - Sale+OE | $37.61 | -49.9K | 106.7K | -32% | -$1.88M |
| DM | 2021-09-10 | 2021-09-08 | MASS | 908 Devices Inc. | Griffith Joseph H. IV | CFO | M - OptEx | $0.5628 | +49.9K | 137.7K | +57% | +$28.1K |
Purchase Sale Sale after option exercise All abbreviations