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MASSNasdaq

908 Devices Inc.

Alert me on MASS
0
Insider buys, 6 months
0
Congress trades, 6 months
0
Signals, 6 months

Six months

MASS stock chart by TradingView

After each filing

39
Oct 10 Sale Brown Christopher D. Insider
1 week
−3.3%S&P −1.5%
1 month
Result in6 trading days
3 months
Result in48 trading days
6 months
Result in111 trading days
Oct 9 Sale Griffith Joseph H. IV Insider
1 week
−6.6%S&P −2.0%
1 month
Result in5 trading days
3 months
Result in47 trading days
6 months
Result in110 trading days
Oct 2 Sale AWM Investment Company, Inc. Insider
1 week
−5.0%S&P +1.2%
1 month
Result due
3 months
Result in42 trading days
6 months
Result in105 trading days
Sep 26 Sale AWM Investment Company, Inc. Insider
1 week
+9.8%S&P +1.2%
1 month
+6.0%S&P +0.5%
3 months
Result in38 trading days
6 months
Result in101 trading days
Sep 18 Sale Kenneweg John Insider
1 week
+8.6%S&P +1.3%
1 month
+8.5%S&P +0.6%
3 months
Result in32 trading days
6 months
Result in95 trading days
Show all 39
Sep 5 Sale Brown Christopher D. Insider
1 week
+1.6%S&P −1.1%
1 month
+20.1%S&P +1.7%
3 months
Result in24 trading days
6 months
Result in87 trading days
Aug 28 Sale Griffith Joseph H. IV Insider
1 week
−6.3%S&P +0.1%
1 month
+10.4%S&P −0.4%
3 months
Result in18 trading days
6 months
Result in81 trading days
Aug 25 Sale AWM Investment Company, Inc. Insider
1 week
−3.2%S&P −0.5%
1 month
+4.7%S&P +0.4%
3 months
Result in15 trading days
6 months
Result in78 trading days
Aug 18 Sale Knopp Kevin J. Insider
1 week
+9.1%S&P −0.2%
1 month
+8.9%S&P −0.6%
3 months
Result in10 trading days
6 months
Result in73 trading days
Aug 13 Sale Brown Christopher D. Insider
1 week
+2.4%S&P −2.0%
1 month
−3.8%S&P −2.2%
3 months
Result in7 trading days
6 months
Result in70 trading days
Aug 13 Sale Knopp Kevin J. Insider
1 week
+2.4%S&P −2.0%
1 month
−3.8%S&P −2.2%
3 months
Result in7 trading days
6 months
Result in70 trading days
Aug 8 Sale Brown Christopher D. Insider
1 week
+15.8%S&P 0.0%
1 month
+10.1%S&P −1.4%
3 months
Result in4 trading days
6 months
Result in67 trading days
Aug 7 Sale AWM Investment Company, Inc. Insider
1 week
+12.7%S&P +0.4%
1 month
+10.5%S&P −0.9%
3 months
Result in3 trading days
6 months
Result in66 trading days
Jul 8 Sale Knopp Kevin J. Insider
1 week
+2.2%S&P +1.3%
1 month
+5.3%S&P +3.1%
3 months
+56.5%S&P +4.8%
6 months
Result in44 trading days
Jul 8 Sale Brown Christopher D. Insider
1 week
+2.2%S&P +1.3%
1 month
+5.3%S&P +3.1%
3 months
+56.5%S&P +4.8%
6 months
Result in44 trading days
Jul 3 Sale Brown Christopher D. Insider
1 week
−5.6%S&P −0.3%
1 month
+0.4%S&P +2.7%
3 months
+50.7%S&P +2.7%
6 months
Result in42 trading days
Jul 1 Sale Knopp Kevin J. Insider
1 week
−8.4%S&P +0.8%
1 month
−9.8%S&P +0.2%
3 months
+39.0%S&P +2.5%
6 months
Result in40 trading days
Jun 26 Sale Knopp Kevin J. Insider
1 week
−4.1%S&P +3.1%
1 month
−19.9%S&P +1.6%
3 months
+30.3%S&P +6.1%
6 months
Result in37 trading days
Jun 26 Sale Brown Christopher D. Insider
1 week
−4.1%S&P +3.1%
1 month
−19.9%S&P +1.6%
3 months
+30.3%S&P +6.1%
6 months
Result in37 trading days
Jun 25 Sale AWM Investment Company, Inc. Insider
1 week
−3.2%S&P +1.4%
1 month
−20.6%S&P +0.7%
3 months
+28.3%S&P +4.7%
6 months
Result in36 trading days
Jun 6 Sale Brown Christopher D. Insider
1 week
+6.4%S&P +2.1%
1 month
+0.4%S&P +1.9%
3 months
+21.1%S&P +3.9%
6 months
Result in24 trading days
Jun 5 Sale Brown Christopher D. Insider
1 week
+4.3%S&P +0.6%
1 month
−0.6%S&P +1.3%
3 months
+26.7%S&P +4.7%
6 months
Result in23 trading days
Jun 5 Sale AWM Investment Company, Inc. Insider
1 week
+4.3%S&P +0.6%
1 month
−0.6%S&P +1.3%
3 months
+26.7%S&P +4.7%
6 months
Result in23 trading days
May 30 Sale AWM Investment Company, Inc. Insider
1 week
−6.1%S&P −2.5%
1 month
+2.9%S&P −1.4%
3 months
+23.6%S&P +1.4%
6 months
Result in19 trading days
May 30 Sale Griffith Joseph H. IV Insider
1 week
−6.1%S&P −2.5%
1 month
+2.9%S&P −1.4%
3 months
+23.6%S&P +1.4%
6 months
Result in19 trading days
May 30 Sale Brown Christopher D. Insider
1 week
−6.1%S&P −2.5%
1 month
+2.9%S&P −1.4%
3 months
+23.6%S&P +1.4%
6 months
Result in19 trading days
May 14 Sale AWM Investment Company, Inc. Insider
1 week
−2.5%S&P −0.7%
1 month
+18.1%S&P +0.9%
3 months
+37.1%S&P +4.0%
6 months
Result in8 trading days
May 12 Sale Kenneweg John Insider
1 week
−11.4%S&P −0.6%
1 month
+7.5%S&P −0.1%
3 months
+31.0%S&P +4.9%
6 months
Result in6 trading days
May 9 Sale AWM Investment Company, Inc. Insider
1 week
−16.3%S&P −0.1%
1 month
+1.0%S&P −1.9%
3 months
+26.2%S&P +4.5%
6 months
Result in5 trading days
May 8 Sale Brown Christopher D. Insider
1 week
−15.5%S&P +0.2%
1 month
−2.2%S&P −0.1%
3 months
+7.7%S&P +5.1%
6 months
Result in4 trading days
May 5 Sale Kenneweg John Insider
1 week
+7.9%S&P +2.0%
1 month
+24.4%S&P +4.6%
3 months
+18.6%S&P +6.6%
6 months
Result in1 trading day
Apr 15 Sale McCallion Kevin J. Insider
1 week
−3.3%S&P +1.6%
1 month
−0.9%S&P +6.9%
3 months
+0.5%S&P +7.5%
6 months
+60.5%S&P +10.5%
Apr 11 Sale McCallion Kevin J. Insider
1 week
+1.4%S&P +3.3%
1 month
+6.3%S&P +7.6%
3 months
+13.3%S&P +9.9%
6 months
+64.2%S&P +14.0%
Apr 11 Sale Brown Christopher D. Insider
1 week
+1.4%S&P +3.3%
1 month
+6.3%S&P +7.6%
3 months
+13.3%S&P +9.9%
6 months
+64.2%S&P +14.0%
Mar 5 Sale McCallion Kevin J. Insider
1 week
−11.0%S&P −2.2%
1 month
+1.5%S&P −3.0%
3 months
+30.7%S&P +11.4%
6 months
+48.7%S&P +14.1%
Feb 4 Sale Griffith Joseph H. IV Insider
1 week
+4.3%S&P +0.8%
1 month
−1.1%S&P −2.0%
3 months
+27.3%S&P +7.2%
6 months
+31.1%S&P +12.6%
Feb 4 Sale Knopp Kevin J. Insider
1 week
+4.3%S&P +0.8%
1 month
−1.1%S&P −2.0%
3 months
+27.3%S&P +7.2%
6 months
+31.1%S&P +12.6%
Oct 6, 2025 Sale Griffith Joseph H. IV Insider
1 week
−10.2%S&P −1.3%
1 month
−11.5%S&P +0.5%
3 months
−38.4%S&P +3.3%
6 months
−19.7%S&P +1.2%
Sep 23, 2025 Sale Griffith Joseph H. IV Insider
1 week
+16.0%S&P +0.4%
1 month
+9.9%S&P +0.7%
3 months
−21.5%S&P +3.6%
6 months
−16.3%S&P −0.4%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for MASS

79 held · newest 579 held · newest 2
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See all 79 filings for MASS

Aeon news and offers by email

New sources, new features and offers like our founding price. A few times a month at most. Stop any time.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal
No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters
$73KQ4 2025
$73KQ1 2026
$73KQ2 2026
$73KQ3 2026
Unchanged from Q2 2026. Reported to the Senate each quarter by the firms it hires.Original report ↗

Read from LDA.gov between Sep 23, 2026 and Oct 23, 2026. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.