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Insider Cluster (3 insiders) ·Filed May 6, 2026

MASS

908 Devices Inc.
NEUTRAL
Impact 3/10
Horizondays Processed5mo ago
Insider cluster: 3 insiders, $0.3M total
Actionable Insight • Neutral

The insider sales are too small relative to market cap to warrant a bearish read-through. The cluster is dominated by a 10% owner (AWM) and mid-level executives, with no CEO/CFO selling. Given the company just reported strong Q1 results (+14% YoY revenue) and raised full-year guidance, these sales likely reflect routine portfolio diversification or tax planning. Monitor for any CEO/CFO selling in the next 30 days, which would carry more signal.

DirectionNeutral
Confidencehigh
Horizondays
Final — all horizons settled through T+60d
MASS ▼ -0.62% at T+60d
NEUTRAL call -0.62% · α vs SPY -2.68% · entry $8.06 → $8.01
Entry = T+0 close
May 5, 2026
via day close
T+1d
+0.25%
call +0.25% · α +0.58%
$8.08
settled 6mo ago
T+5d
-5.09%
call -5.09% · α -6.22%
$7.65
settled 6mo ago
T+20d
+7.44%
call +7.44% · α +4.66%
$8.66
settled 5mo ago
T+60d
-0.62%
call -0.62% · α -2.68%
$8.01
settled 3mo ago

Price Chart

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Executive Summary

Three insiders at 908 Devices sold a total of $317K in stock over a 7-day window, immediately following the company's Q1 earnings beat and NIRLAB acquisition announcement. The sales represent ~0.1% of market cap, which is trivial relative to the company's size, and the cluster is dominated by a 10% owner (AWM) and two non-CEO executives/directors. The timing is notable given the bullish earnings report and raised guidance, but the dollar amount is too small to signal material concern.

Key Financial Metrics

Direction
selling
Total Value
$317.0K
Insiders
3

Key Facts

  • Three insiders sold $317K total over 7 days (May 6-8, 2026)
  • Sales are ~0.1% of MASS's $309M market cap — routine and immaterial
  • Cluster occurred 5 days after Q1 earnings beat and NIRLAB acquisition announcement
  • AWM Investment (10% owner) sold $170K; SVP Kenneweg sold $148K; Director Brown sold $145K
  • No C-suite (CEO/CFO) participation in the cluster
  • Prior 30-day insider activity: 6 sells totaling $516K

Financial Impact

Total insider sales of $317K, or ~0.1% of market cap — economically trivial

insider_sales_volume

Risk Factors

  • Insider selling could accelerate if Q2 results disappoint
  • AWM Investment's continued selling may indicate reduced conviction from a major holder
  • Integration risk from NIRLAB acquisition could pressure near-term margins

Market Snapshot

Exchange
Nasdaq
Sector
Measuring & Controlling Devices, NEC
Analyst Consensus
90% bullish (10 analysts)

Investment Themes

Industrials & Manufacturing

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-MASS-1778529953907
23 reports for MASS
Performance horizon
42% Hit rate @ T+5 5 of 12 directional calls Went positive at some point 9 of 12 best @ T+60▲ +12.41%Jun 13, 2026
Filters
Rows
Reports for MASS — sortable, filterable
TypeNow
Oct 6, 2026
20d ago
144
NEUTRAL ★ 2/10
$11.78 $11.83▲ +0.42%▲ +1.40%$11.65 (−1.10%)
Sep 25, 2026
4w ago
Insider Cluster
BEARISH ★ 4/10
$11.66 $12.80▼ −9.78%▼ −8.57%$11.65 (+0.09%)
Aug 27, 2026
8w ago
Insider Cluster
NEUTRAL ★ 4/10
$10.73 $10.05▼ −6.34%▼ −6.45%$11.65 (+8.57%)
Aug 17, 2026
10w ago
Insider Cluster
BEARISH ★ 4/10
$10.08 $11.00▼ −9.13%▼ −9.33%$11.65 (−15.58%)
Aug 12, 2026
10w ago
Insider Cluster
BEARISH ★ 5/10
$10.11 $10.35▼ −2.37%▼ −4.34%$11.65 (−15.23%)
Aug 11, 2026
10w ago
8-K
BULLISH ★ 6/10
$10.01 $10.08▲ +0.70%▲ +1.10%$11.65 (+16.38%)
Aug 7, 2026
11w ago
Insider Cluster
NEUTRAL ★ 4/10
$8.80 $10.19▲ +15.80%▲ +15.84%$11.65 (+32.39%)
Jul 7, 2026
15w ago
Insider Cluster
NEUTRAL ★ 2/10
$7.88 $8.05▲ +2.16%▲ +0.90%$11.65 (+47.84%)
Jul 2, 2026
16w ago
Insider Cluster
NEUTRAL ★ 3/10
$8.42 $7.95▼ −5.58%▼ −5.30%$11.65 (+38.36%)
Jun 13, 2026
19w ago
Institutional Cluster
BULLISH ★ 5/10
$8.62 $8.66▲ +0.46%▲ +1.85%$11.65 (+35.15%)
Showing 10 of 23

US Market Status

Market Closed — Opens Wed (11h 54m)

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Report published May 11, 2026