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Insider Cluster (2 insiders) ·Filed Sep 25, 2026

MASS

908 Devices Inc.
BEARISH
Impact 4/10
Horizonweeks Processed1mo ago
Insider cluster: 2 insiders, $326K total
Actionable Insight ▼ Bearish

The 10% owner sale is notable in size and lacks a plan indicator, but the dollar amount relative to market cap is modest.

DirectionBearish
Confidencemedium
Horizonweeks
Latest settled — T+20d
MASS ▼ -0.09% at T+20d
SHORT call ✓ call won +0.09% · α vs SPY +0.05% · entry $11.66 → $11.65
Next anchor: T+60d in 8w
Entry = T+0 close
Sep 25, 2026
via day close
T+1d
+1.63%
call -1.63% · α -1.81%
$11.85
settled 29d ago
T+5d
+9.78%
call -9.78% · α -8.57%
$12.80
settled 25d ago
T+20d
-0.09%
call +0.09% · α +0.05%
$11.65
settled 4d ago
T+60d
Pending
in 8w

Price Chart

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Executive Summary

Two insiders at 908 Devices sold a combined $326K in shares over a one-week window. The largest sale ($273K) came from 10% owner AWM Investment Company, while SVP Kenneweg sold $54K. The total value is ~0.1% of the company's $326M market cap, falling at the low end of the materiality band.

Key Financial Metrics

Direction
selling
Total Value
$326.0K
Insiders
2

Key Facts

  • AWM Investment Company (10% owner) sold 24,000 shares at $11.36 for $273K on 2026-09-24
  • SVP Kenneweg sold 5,300 shares at $10.22 for $54K on 2026-09-17
  • Total insider sales of $326K represent ~0.1% of market cap
  • Both sales are open-market (code S) with no 10b5-1 plan indicated

Financial Impact

$326K in insider sales, ~0.1% of market cap

insider ownership

Risk Factors

  • Insider sales may be liquidity-driven rather than informational
  • No 10b5-1 plan disclosed, but the sale could still be routine portfolio rebalancing

Investment Themes

Industrials & Manufacturing

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-MASS-1790367890034
23 reports for MASS
Performance horizon
45% Hit rate @ T+5 5 of 11 directional calls Went positive at some point 8 of 11 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

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Report published Sep 25, 2026