Insider Cluster (2 insiders) ·Filed Oct 19, 2026
Insider cluster: 2 insiders, $1.0M total
Actionable Insight ▼ Bearish
The simultaneous open-market sales by two senior executives without disclosed 10b5-1 plans warrant attention. Monitor for any upcoming earnings pre-announcement or material news that may have prompted the sales.
Latest settled — T+5d
CIEN ▲ +2.69% at T+5d
SHORT call ✗ call lost -2.69% · α vs SPY -2.61% · entry $341.95 → $351.15
T+1d
+5.67%
call -5.67% · α -5.15%
$361.34
settled 7d ago
T+5d
+2.69%
call -2.69% · α -2.61%
$351.15
settled yesterday
T+20d
Pending
in 20d
T+60d
Pending
in 3mo
Price Chart
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Executive Summary
Two CIEN executives sold a combined ~$1.02M in open-market transactions on the same day. The sales are modest relative to the company's market cap and may be routine portfolio diversification. No insider buying is present to offset the signal.
Key Financial Metrics
Direction
selling
Total Value
$1.0M
Insiders
2
Key Facts
- EVP & Chief Strategy Officer David Rothenstein sold 2,500 shares at ~$348.06 for ~$870K on 2026-10-15.
- EVP & Chief R&D Officer Dino DiPerna sold 445 shares at ~$344.08 for ~$153K on 2026-10-15.
- Total insider sales of ~$1.02M occurred on the same day with no 10b5-1 plan indication.
- No insider purchases were reported in the cluster window.
Financial Impact
~$1.02M in open-market sales by two C-suite executives on a single day.
insider holdings
Risk Factors
- Insider sales may signal management's view that the stock is fully valued or that near-term headwinds exist.
- Lack of insider buying alongside the sales reduces confidence in a bullish outlook.
Investment Themes
Media & Telecom
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-CIEN-1792444810813 |
33 reports for CIEN
57% Hit rate @ T+20 Went positive at some point 7 of 9 best @ T+60▲ +90.31%
Filters
Rows
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 23, 2026 4d ago | Institutional Cluster | $320.26 | awaiting T+20 | — | $351.15 (−9.65%) |
Oct 19, 2026 8d ago | Insider Cluster | $341.95 | awaiting T+20 | — | $351.15 (−2.69%) |
Oct 13, 2026 14d ago | Insider Cluster | $400.40 | awaiting T+20 | — | $351.15 (+12.30%) |
Sep 29, 2026 27d ago | Insider Cluster | $351.82 | awaiting T+20 | — | $351.15 (−0.19%) |
Sep 28, 2026 29d ago | Insider Cluster | $354.92 $351.15 | ▲ +1.06% | ▲ +1.78% | $351.15 (+1.06%) |
Sep 25, 2026 4w ago | Insider Cluster | $344.19 $335.93 | ▲ +2.40% | ▲ +2.37% | $351.15 (−2.02%) |
Sep 17, 2026 5w ago | Insider Cluster | $348.80 $332.73 | ▼ −4.61% | ▼ −4.81% | $351.15 (+0.67%) |
Sep 17, 2026 5w ago | Insider Cluster | $348.80 $332.73 | ▼ −4.61% | ▼ −4.81% | $351.15 (+0.67%) |
Sep 17, 2026 5w ago | Insider Cluster | $348.80 $332.73 | ▼ −4.61% | ▼ −4.81% | $351.15 (+0.67%) |
Sep 3, 2026 7w ago | 8-K | $317.46 $391.34 | ▲ +23.27% | ▲ +24.46% | $351.15 (+10.61%) |
Showing 10 of 33
US Market Status
Market Closed — Opens Wed (< 1m)
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