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Insider Cluster (5 insiders) ·Filed Aug 19, 2026

MRCY

MERCURY SYSTEMS INC
NEUTRAL
Impact 3/10
Horizondays Processed2mo ago
Insider cluster: 3 insiders, $3.0M total
Actionable Insight • Neutral

The insider selling cluster is routine in size relative to market cap and lacks a bearish catalyst. Monitor for any upcoming 8-K or earnings release that could explain the selling, but no immediate action is warranted.

DirectionNeutral
Confidencemedium
Horizondays
Latest settled — T+20d ⚠ clustered
MRCY ▼ -9.50% at T+20d
NEUTRAL call -9.50% · α vs SPY -9.50% · entry $94.23 → $85.28
Next anchor: T+60d in 16d
Latest observation: T+45 -1.82% FF3 residual α
Entry = T+0 close
Aug 19, 2026
via day close
T+1d
-3.05%
call -3.05% · α -3.45%
$91.36
settled 2mo ago
T+5d
-3.99%
call -3.99% · α -5.10%
$90.47
settled 2mo ago
T+20d
-9.50%
call -9.50% · α -9.50%
$85.28
settled 6w ago
T+60d
Pending
in 16d

Price Chart

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Executive Summary

A cluster of insider selling at Mercury Systems, led by CEO William Ballhaus ($2.69M open-market sale), CFO David Farnsworth ($966K total), and other C-suite executives, totaling ~$4.7M in open-market sales over a 7-day window. This represents ~0.07% of the $6.3B market cap, falling below the 0.1% materiality threshold, and is likely driven by routine portfolio diversification and tax-related dispositions (non-cash 'D' transactions on 8/14).

Key Financial Metrics

Direction
selling
Total Value
$3.0M
Insiders
5

Key Facts

  • CEO Ballhaus sold 24,144 shares open-market at ~$111.36 for $2.69M on 8/18
  • CFO Farnsworth sold 8,692 shares total open-market at ~$110-$111 for $966K on 8/17-8/18
  • Total open-market sales by 5 insiders over 7 days: ~$4.7M (0.07% of $6.3B market cap)
  • Non-cash dispositions to issuer on 8/14 (70,287 shares from CEO, 16,275 from CFO) are tax-withholding events, not economic sales
  • No material negative corporate event (earnings miss, guidance cut, restructuring) is present in the provided cross-filing context

Financial Impact

Open-market insider sales of ~$4.7M, representing 0.07% of market cap — immaterial relative to company size

insider ownership

Risk Factors

  • Insider selling could accelerate if a negative catalyst emerges (e.g., earnings miss, defense budget cuts)
  • CEO selling $2.69M in a single day may signal personal diversification rather than bearish view, but warrants monitoring

Market Snapshot

Exchange
Nasdaq
Sector
Electronic Components & Accessories
Analyst Consensus
69% bullish (16 analysts)

Investment Themes

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-MRCY-1787196584270
15 reports for MRCY
Performance horizon
71% Hit rate @ T+20 5 of 7 directional calls Went positive at some point 5 of 7 best @ T+60▲ +64.82%Apr 2, 2026
Filters
Rows
Reports for MRCY — sortable, filterable
TypeNow
Oct 13, 2026
13d ago
Press Release
NEUTRAL ★ 1/10
$75.69awaiting T+20—$79.71 (+5.31%)
Sep 16, 2026
5w ago
8-K
NEUTRAL ★ 3/10
$87.25 $76.71▼ −12.08%▼ −15.26%$79.71 (−8.64%)
Aug 27, 2026
8w ago
Insider Cluster
NEUTRAL ★ 4/10
$88.54 $80.12▼ −9.51%▼ −9.02%$79.71 (−9.97%)
Aug 25, 2026
8w ago
Insider Cluster
BEARISH ★ 5/10
$89.76 $83.18▲ +7.34%▲ +7.56%$79.71 (+11.20%)
Aug 21, 2026
9w ago
Insider Cluster
NEUTRAL ★ 3/10
$89.59 $83.88▼ −6.37%▼ −7.67%$79.71 (−11.03%)
Aug 19, 2026
9w ago
Insider Cluster
BEARISH ★ 6/10
$94.23 $85.28▲ +9.50%▲ +9.50%$79.71 (+15.41%)
Aug 19, 2026
9w ago
Insider Cluster
NEUTRAL ★ 3/10
$94.23 $85.28▼ −9.50%▼ −9.50%$79.71 (−15.41%)
Aug 19, 2026
9w ago
Insider Cluster
NEUTRAL ★ 4/10
$94.23 $85.28▼ −9.50%▼ −9.50%$79.71 (−15.41%)
Aug 18, 2026
9w ago
Press Release
BULLISH ★ 7/10
$101.25 $86.18▼ −14.88%▼ −12.93%$79.71 (−21.27%)
Jul 28, 2026
12w ago
Press Release
NEUTRAL ★ 1/10
$90.17awaiting T+20—$79.71 (−11.60%)
Showing 10 of 15

US Market Status

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Report published Aug 19, 2026