MASS908 Devices Inc.
Insider trading & SEC Form 4 activity — last 90 days. Latest filing: 2026-06-05.
Insider buys (90d)
$0.00
Insider sells (90d)
$3.99M
Net flow
$-3.99M
Filings
14
Buy transactions
0
Sell transactions
23
Distinct insiders
5
Last close (cached)
$8.10
as of 2026-06-08
1d return
+2.1%
5d return
-6.1%
1m return
+0.2%
Top insiders trading MASS (90d)
Recent transactions (27)
| Filed | Txn date | Insider | Code | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-05 | 2026-06-04 | Brown Christopher D. | Sale | 100 | $9.00 | $900.00 | open → |
| 2026-06-04 | 2026-06-04 | AWM Investment Company, Inc. 10% | Sale | 39,782 | $8.97 | $356.9K | open → |
| 2026-06-04 | 2026-06-02 | AWM Investment Company, Inc. 10% | Sale | 2,500 | $8.95 | $22.4K | open → |
| 2026-06-04 | 2026-06-03 | Brown Christopher D. | Sale | 20,000 | $8.73 | $174.6K | open → |
| 2026-05-29 | 2026-05-28 | AWM Investment Company, Inc. 10% | Sale | 170,442 | $8.66 | $1.48M | open → |
| 2026-05-29 | 2026-05-27 | AWM Investment Company, Inc. 10% | Sale | 15,000 | $8.25 | $123.8K | open → |
| 2026-05-29 | 2026-05-27 | AWM Investment Company, Inc. 10% | Sale | 1,500 | $8.25 | $12.4K | open → |
| 2026-05-29 | 2026-05-28 | Brown Christopher D. | Sale | 30,000 | $9.00 | $270.0K | open → |
| 2026-05-29 | 2026-05-28 | Griffith Joseph H. IV | Sale | 6,940 | $9.03 | $62.7K | open → |
| 2026-05-13 | 2026-05-11 | AWM Investment Company, Inc. 10% | Sale | 5,000 | $8.25 | $41.3K | open → |
| 2026-05-11 | 2026-05-08 | Kenneweg John | Sale | 18,255 | $8.11 | $148.0K | open → |
| 2026-04-14 | 2026-04-10 | McCallion Kevin J. | Sale | 2,693 | $7.01 | $18.9K | open → |
| 2026-04-14 | 2026-04-10 | McCallion Kevin J. | Exer. | 2,693 | $1.05 | $2.8K | open → |
| 2026-04-10 | 2026-04-09 | McCallion Kevin J. | Sale | 5,420 | $7.03 | $38.1K | open → |
| 2026-04-10 | 2026-04-09 | McCallion Kevin J. | Exer. | 5,420 | $1.05 | $5.7K | open → |
| 2026-04-10 | 2026-04-08 | McCallion Kevin J. | Sale | 18,580 | $7.05 | $131.0K | open → |
| 2026-04-10 | 2026-04-08 | McCallion Kevin J. | Exer. | 18,580 | $1.05 | $19.5K | open → |
| 2026-04-10 | 2026-04-10 | Brown Christopher D. | Sale | 17,578 | $7.07 | $124.3K | open → |
| 2026-04-10 | 2026-04-09 | Brown Christopher D. | Sale | 7,392 | $7.04 | $52.0K | open → |
| 2026-04-10 | 2026-04-08 | Brown Christopher D. | Sale | 15,030 | $7.05 | $106.0K | open → |
| 2026-05-08 | 2026-05-08 | AWM Investment Company, Inc. 10% | Sale | 3,025 | $8.20 | $24.8K | open → |
| 2026-05-08 | 2026-05-07 | AWM Investment Company, Inc. 10% | Sale | 12,819 | $8.20 | $105.2K | open → |
| 2026-05-08 | 2026-05-06 | AWM Investment Company, Inc. 10% | Sale | 57,365 | $8.06 | $462.2K | open → |
| 2026-05-08 | 2026-05-06 | AWM Investment Company, Inc. 10% | Sale | 5,000 | $8.00 | $40.0K | open → |
| 2026-05-07 | 2026-05-06 | Brown Christopher D. | Sale | 20,000 | $7.23 | $144.6K | open → |
| 2026-05-04 | 2026-05-01 | Kenneweg John | Sale | 7,787 | $6.83 | $53.2K | open → |
| 2026-05-04 | 2026-05-01 | Kenneweg John | Exer. | 26,042 | $0.00 | $0.00 | open → |
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