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Ciena Corporation (CIEN)

Ciena's next earnings date, recent SEC filings, insider trades and reported financials, with end-of-day prices. Every number carries its date and source.

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Last close

$343.98

−3.53% 1 day+150.6% 52 weeks

As of Sep 28, 2026, end of day (IEX). Not a live quote.

CIEN · one year of daily closes

Sep 25, 2025 to Sep 28, 2026 · end of day · IEX

Closing prices, split-adjusted, from trades on the IEX exchange (published the next trading day). Data provided for free by IEX. By accessing or using IEX Historical Data, you agree to the IEX Historical Data Terms of Use.

1-day change: −3.53%; From $356.57 the session before
52-week change: +150.6%; Close vs close ~252 sessions earlier
52-week range: $141.99–$627.60; Lowest and highest closing prices
Market cap: $48.8B; Last close × shares outstanding (SEC)
Revenue (TTM): $6.0B; 12 months to Aug 1, 2026
Net income (TTM): $654.4M; 12 months to Aug 1, 2026
Diluted EPS (TTM): $4.47; 12 months to Aug 1, 2026

Financials: trailing twelve months from Ciena’s reported US-GAAP figures, SEC EDGAR XBRL company facts, period ended Aug 1, 2026.

Recent SEC filings

Source: SEC EDGAR. Each line is written from the form type and the official 8-K item titles; open the filing for the full text. All CIEN filings on EDGAR

Next earnings

~Dec 10, 2026Estimated

Past results were usually filed before the open

Estimated from past filing dates. Ciena hasn't announced this date; Vero projects it from the rhythm of its past SEC filings, so treat it as approximate.

Estimated from SEC EDGAR filing dates

Insider activity (last 90 days)

Open-market buys: 0; filings · 0 shares
Open-market sales: 21; filings · 48,036 shares

Latest 5 of 21 filings shown.

Source: SEC EDGAR Form 4, filed in the 90 days to Oct 1, 2026. Counts are filings with at least one open-market purchase (P) or sale (S); grants, option exercises, tax withholding and gifts are left out.

Insider share counts and prices are as reported on Form 4.

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What Vero tracks about Ciena

Each new Ciena filing and headline, summarized in plain English and scored 1–10 for how much it matters. Write down why you own CIEN, and Vero reads every new item against those reasons: confirms, challenges or breaks. Alerts say when something crosses the line you set.

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The free plan follows 3 stocks, with no card and no end date.

Ciena (CIEN): questions, answered from the data

When is Ciena's next earnings date?

Around Dec 10, 2026 (past results were usually filed before the open), but that is an estimate, not a date Ciena has announced. Estimated from past filing dates: Vero projects it from the dates of Ciena's past SEC filings (source: Estimated from SEC EDGAR filing dates). Treat it as approximate until the company confirms it.

What was CIEN's last closing price?

CIEN closed at $343.98 on Sep 28, 2026. This is an end-of-day price from trades on the IEX exchange, published the next trading day, not a live quote, and it can differ slightly from the consolidated official close. That was −3.53% from the session before and +150.6% over 52 weeks.

Have Ciena insiders bought or sold shares recently?

In the 90 days to Oct 1, 2026, SEC Form 4 shows 0 filings with open-market purchases (0 shares) and 21 filings with open-market sales (48,036 shares). The most recent: Cumello Joseph (EVP & General Mgr.) reported selling 1,586 shares, filed Sep 29, 2026. Grants, option exercises and tax withholding are not counted. Insider share counts and prices are as reported on Form 4.

What did Ciena file with the SEC most recently?

A 10-Q filed on Sep 3, 2026: Quarterly report for the period ended Aug 1, 2026. Before that, an 8-K on Sep 3, 2026 and an 8-K on Jun 11, 2026. Each filing is linked to the original on SEC EDGAR.

Is this page a recommendation to buy or sell CIEN?

No. It reports public data (end-of-day prices from IEX and filings from SEC EDGAR) with the date of each. Vero is a research tool, not a financial adviser, and nothing here is a recommendation to buy or sell any security.

Closes are end of day (IEX), as of each page’s date. Grouped by SEC industry code (SIC).

Prices: IEX HIST end-of-day bars, published the next trading day; never live. Data provided for free by IEX. By accessing or using IEX Historical Data, you agree to the IEX Historical Data Terms of Use.

Filings, Form 4 and financials: Source: SEC EDGAR. Earnings dates: Vero’s calendar, marked confirmed or estimated.

Vero is a research tool, not a financial adviser. Nothing on this site is financial advice or a recommendation to buy or sell any security.

Data as of Oct 1, 2026.