Welcome to our dedicated page for Ciena SEC filings (Ticker: CIEN), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
This page provides access to Ciena Corporation (NYSE: CIEN) filings with the U.S. Securities and Exchange Commission, along with AI-powered tools to help interpret the information. Ciena is a Delaware corporation based in Hanover, Maryland and is categorized in the telephone apparatus manufacturing industry. Its SEC filings document financial performance, material events, governance matters, and other disclosures relevant to investors and analysts.
Ciena regularly files Form 8-K current reports to announce significant events. Recent examples include 8-Ks reporting fiscal quarterly and year-end financial results, which present revenue from products and services and segment data for Networking Platforms, Platform Software and Services, Blue Planet Automation Software and Services, and Global Services. Other 8-K filings describe material events such as the entry into and completion of the acquisition of Nubis Communications, Inc., and changes to executive change in control severance agreements.
Through this page, users can also review Ciena’s periodic reports, such as annual and quarterly reports when available, which typically include detailed financial statements, management’s discussion of results, and information about business segments and risk factors. In addition, filings related to executive compensation and governance, referenced in the company’s proxy statements, provide context on compensation practices and potential payments upon termination or change in control.
The platform enhances these filings with AI-powered summaries and highlights that explain key sections, such as revenue composition, segment performance, and descriptions of material transactions. Real-time updates from EDGAR help ensure that new Ciena filings, including future 10-Ks, 10-Qs, and Form 4 insider transaction reports when filed, are quickly available with simplified explanations to support deeper analysis of the company’s regulatory disclosures.
A CIEN shareholder filed a notice under Rule 144 to sell 550 shares of common stock through Morgan Stanley Smith Barney LLC on or about 12/15/2025 on the NYSE, with an aggregate market value of 121462.00. The filing lists 140854735 shares of common stock outstanding.
The 550 shares to be sold were acquired as restricted stock from the issuer on 09/20/2024 in the same amount, with payment noted as not applicable. Over the past three months, the same seller has completed additional sales of 111 and 350 common shares, generating gross proceeds of 21178.80 and 59276.00, respectively.
Ciena Corporation files its annual report describing a global network technology business focused on optical networking, routing, software and services. The company’s WaveLogic coherent optics, photonic line systems and routing platforms support high-capacity, low-latency networks for cloud providers, communications service providers and other large operators. Ciena is emphasizing AI-driven traffic growth, data center interconnect, and metro and edge networks, including new interconnect products from its Nubis Communications acquisition. Its portfolio spans Networking Platforms, Platform Software and Services, Blue Planet Automation Software and Services, and Global Services. Ciena reports a workforce of 9,080 employees across 39 countries and highlights intense competition from major networking vendors, along with ongoing investment in R&D, compliance and environmental programs.
Ciena Corporation reported that it has released financial results for its fiscal fourth quarter ended November 1, 2025. The company announced these results through a press release dated December 11, 2025, and will host an investor call to discuss its operations and financial performance for the quarter.
Ciena also posted an accompanying investor presentation on the quarterly results page of the Investors section of its website and furnished both the press release and the presentation as Exhibits 99.1 and 99.2. These materials, along with this current report’s results disclosure, are being treated as furnished rather than filed under federal securities laws, and Ciena highlights that it may from time to time post material information exclusively on its investor website.
Ciena Corporation disclosed that President and CEO Gary B. Smith, who is also a director, sold common stock in a planned transaction. On 12/03/2025 he sold 6,800 shares of Ciena common stock at a weighted average price of $192.6106 per share under a Rule 10b5-1 trading plan dated 09/11/2024. Following this sale, he beneficially owns 254,870 shares, which include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs). The filing is made by one reporting person and reflects a routine insider transaction executed under a pre-established trading plan.
BlackRock, Inc. has filed an amended Schedule 13G reporting its beneficial ownership of 14,537,914 shares of Ciena Corporation common stock, representing 10.3% of the class as of the event date 11/30/2025. BlackRock reports sole power to vote 13,714,981 of these shares and sole power to dispose of 14,537,914 shares, with no shared voting or dispositive power.
The filing explains that these holdings reflect securities beneficially owned, or deemed to be beneficially owned, by certain BlackRock business units, and excludes other disaggregated units. It also notes that various persons have rights to dividends or sale proceeds from Ciena stock, but no individual holds more than five percent of the total outstanding common shares. BlackRock certifies that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Ciena.
Ciena Corporation has renewed and updated its change in control severance agreements for its executive officers, effective November 30, 2025. The agreements cover leaders including President and CEO Gary B. Smith and CFO Marc D. Graff, among others, and provide severance benefits if an executive is terminated without cause or resigns for good reason within 90 days before or up to 12 months after a change in control, or 18 months in the case of the CEO.
The new agreements run through November 30, 2028 and are described as substantially equivalent to the prior version, with severance benefit levels unchanged. Updates focus on clarifying that the arrangements do not limit Ciena’s rights under its executive compensation clawback policy, refining how equity is treated under Section 409A of the Internal Revenue Code, and making other administrative changes.
Ciena Corporation (CIEN) insider activity: A senior officer, the SVP Global Products & Supply, reported selling 111 shares of Ciena common stock on 11/17/2025 in an open market transaction coded as a sale. The shares were sold at a price of $190.8 per share under a pre-arranged Rule 10b5-1 trading plan dated 09/06/2024, which is designed to allow trading under preset instructions. After this transaction, the reporting person beneficially owned 40,542 shares, and this figure includes unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).
Ciena Corporation senior vice president and chief strategy officer David M. Rothenstein reported a sale of company stock. On 11/17/2025, he sold 2,500 shares of Ciena common stock in an open market transaction under a pre-arranged Rule 10b5-1 trading plan dated 12/23/2024. The filing states a weighted average sale price of $191.7246 per share, with individual trades executed in a price range from $189.39 to $195.38. After this transaction, Rothenstein beneficially owns 183,190 Ciena shares, which the report notes include unvested restricted stock units (RSUs) and performance stock units (PSUs). The form confirms this is a filing by one reporting person and that the shares are held directly.
Ciena Corporation (CIEN) senior vice president of Global R&D, Dino Diperna, reported a sale of company stock in a Form 4 filing. On 11/17/2025, he sold 1,241 shares of Ciena common stock at a price of $190.8 per share. The filing states that this sale was made under a Rule 10b5-1 trading plan dated 7/11/2025, which is a pre-arranged plan for trading company stock. Following the reported transaction, Diperna beneficially owns 38,047 shares of Ciena common stock, and this amount includes unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).
Ciena (CIEN) insider filed a Form 144 to sell 2,500 common shares. The planned sale is through Morgan Stanley Smith Barney LLC on the NYSE, with an aggregate market value of $479,275 and an approximate sale date of 11/17/2025. The 2,500 shares were acquired as restricted stock units from the issuer on 03/20/2023.
Over the prior three months, the same seller, identified as David Rothenstein, sold 2,500 common shares on 09/15/2025 for gross proceeds of $330,000 and another 2,500 shares on 10/15/2025 for gross proceeds of $425,543 under Rule 10b5-1 sales instructions. Shares outstanding were 141,055,908 at the time referenced for this notice.