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Insider Cluster (3 insiders) ·Filed Oct 13, 2026

CIEN

CIENA CORP
BEARISH
Impact 5/10
Horizonweeks Processed13d 3h ago
Insider cluster: 3 insiders, $2.7M total
Actionable Insight ▼ Bearish

The cluster of open-market sales by the CEO and two other insiders, all within a week and without a disclosed trading plan, is a bearish signal. Monitor for any forthcoming negative news or earnings pre-announcement that may have prompted the selling.

DirectionBearish
Confidencemedium
Horizonweeks
Latest settled — T+5d
CIEN ▼ -14.60% at T+5d
SHORT call ✓ call won +14.60% · α vs SPY +13.45% · entry $400.40 → $341.95
Next anchor: T+20d in 15d
Latest observation: T+8 +9.42% FF3 residual α
Entry = T+0 close
Oct 13, 2026
via day close
T+1d
-10.19%
call +10.19% · α +9.11%
$359.60
settled 12d ago
T+5d
-14.60%
call +14.60% · α +13.45%
$341.95
settled 6d ago
T+20d
Pending
in 15d
T+60d
Pending
in 2mo

Price Chart

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Executive Summary

Three CIEN insiders, including the CEO and an EVP, sold a combined $2.68M in open-market sales over a one-week period. The CEO's $1.09M sale is the largest single transaction, and the cluster represents approximately 0.8% of the company's market cap, a notable but not extreme proportion. The selling is concentrated in a tight window and lacks any disclosed 10b5-1 plan, suggesting a potentially informed signal.

Key Financial Metrics

Direction
selling
Total Value
$2.7M
Insiders
3

Key Facts

  • President & CEO Gary B. Smith sold 3,000 shares at $369.66 for $1.09M on 2026-10-01.
  • Director Bruce L. Claflin sold 2,900 shares at $355.91 for $1.02M on 2026-09-24.
  • EVP & General Manager Joseph Cumello sold 1,600 shares at $358.52 for $569K on 2026-09-25.
  • Total insider sales of $2.68M represent ~0.8% of CIEN's market cap.
  • No 10b5-1 plan or tax-withholding code (F) was indicated for any of the sales.

Financial Impact

Insider sales of $2.68M, or ~0.8% of market cap, concentrated in a 7-day window.

dilutioninsider ownership

Risk Factors

  • Insider selling may signal deteriorating business fundamentals or an upcoming negative catalyst.
  • The CEO's sale is the largest and most senior, carrying the heaviest signal weight.

Investment Themes

Media & Telecom

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-CIEN-1791895737940
33 reports for CIEN
Performance horizon
57% Hit rate @ T+5 4 of 7 directional calls Went positive at some point 5 of 8 best @ T+60▲ +90.31%Mar 5, 2026
Filters
Rows
Reports for CIEN — sortable, filterable
TypeNow
Oct 23, 2026
2d ago
Institutional Cluster
BEARISH ★ 4/10
$323.55awaiting T+5—$338.67 (−4.67%)
Oct 19, 2026
6d ago
Insider Cluster
BEARISH ★ 4/10
$341.95awaiting T+5—$338.67 (+0.96%)
Oct 13, 2026
13d ago
Insider Cluster
BEARISH ★ 5/10
$400.40 $341.95▲ +14.60%▲ +13.45%$338.67 (+15.42%)
Sep 29, 2026
26d ago
Insider Cluster
NEUTRAL ★ 3/10
$351.82 $446.45▲ +26.90%▲ +24.98%$338.67 (−3.74%)
Sep 28, 2026
27d ago
Insider Cluster
BEARISH ★ 5/10
$354.92 $443.65▼ −25.00%▼ −23.05%$338.67 (+4.58%)
Sep 25, 2026
4w ago
Insider Cluster
BEARISH ★ 4/10
$344.19 $389.69▼ −13.22%▼ −12.02%$338.67 (+1.61%)
Sep 17, 2026
5w ago
Insider Cluster
NEUTRAL ★ 4/10
$348.80 $356.91▲ +2.33%▲ +1.06%$338.67 (−2.91%)
Sep 17, 2026
5w ago
Insider Cluster
NEUTRAL ★ 4/10
$348.80 $356.91▲ +2.33%▲ +1.06%$338.67 (−2.91%)
Sep 17, 2026
5w ago
Insider Cluster
NEUTRAL ★ 3/10
$348.80 $356.91▲ +2.33%▲ +1.06%$338.67 (−2.91%)
Sep 3, 2026
7w ago
8-K
BULLISH ★ 8/10
$317.46 $349.54▲ +10.11%▲ +11.25%$338.67 (+6.68%)
Showing 10 of 33

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Report published Oct 13, 2026