MRCY CLUSTER SEC Filing Analysis

Final — all horizons settled through T+60d

MRCY ▲ +6.17% at T+60d

SHORT call ✗ call lost -6.17% · α vs SPY +0.78% · entry $89.30 → $94.81

Last close $98.55 (close May 22) · -10.36% from $89.30 entry (call sign-flipped)

Entry anchored
Feb 24, 03:59 PM ET
via Databento tick

T+1d

+0.31%

call -0.31% · α -0.86%

$89.58

settled 3mo ago

T+5d

-0.13%

call +0.13% · α -0.97%

$89.18

settled 3mo ago

T+20d

-11.86%

call +11.86% · α +6.62%

$78.71

settled 2mo ago

T+60d

+6.17%

call -6.17% · α +0.78%

$94.81

settled 4d ago

Price Chart

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Executive Summary

JANA Partners Management, LP sold a total of 452,057 MRCY shares in the open market over three days, realizing approximately $38.4 million in proceeds. This represents a significant reduction in their stake by a major institutional holder.

Key Financial Metrics

Direction

selling

Total Value

$38.4M

Insiders

1

Actionable Insight

Monitor for follow-up filings to determine if this is a full exit or partial reduction; such a concentrated sell-off by a known activist or institutional holder may signal deteriorating confidence or portfolio rebalancing, potentially prompting broader investor concern.

Key Facts

JANA Partners sold 452,057 shares of MRCY in three consecutive days (March 2–4, 2026).
All transactions were open-market sales (S) with no offsetting purchases.
Total proceeds from the sales: ~$38.4 million.
Sales represent ~0.71% of MRCY's $5.4B market cap, a material insider disposition.

Financial Impact

$38.4 million in open-market sales by a major holder, equivalent to 0.71% of market capitalization

insider ownershipinvestor sentimentshareholder base stability

Risk Factors

Perceived loss of confidence from a significant shareholder could pressure the stock.
Potential for further selling if JANA continues to reduce its position.

Market Snapshot

Exchange

Nasdaq

Documents Analyzed

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

Document	Accession Number
CONTEXT: Insider Cluster Data (3 trades, 7d window)	cluster-MRCY-1772708497946

4 reports for MRCY

T+1T+5T+20T+60

Track record builds as more directional reports settle.

Filters

Reports for MRCY — sortable, filterable
	Type				Now
May 5, 2026 18d ago	8-K BULLISH ★ 8/10	$91.66 $92.32	▲ +0.72%	▼ −0.41%	$98.55 (+7.52%)
Apr 14, 2026 5w ago	Press Release NEUTRAL ★ 4/10	$85.51 $82.61	▼ −3.39%	▼ −5.03%	$98.55 (+15.25%)
Apr 2, 2026 7w ago	Press Release BULLISH ★ 6/10	$74.22 $79.60	▲ +7.25%	▲ +3.63%	$98.55 (+32.78%)
Feb 25, 2026 12w ago	Insider Cluster BEARISH ★ 7/10	$89.30 $89.18	▲ +0.13%	▼ −0.97%	$98.55 (−10.36%)

US Market Status

Market Closed — Opens Tue (34h 48m)

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