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Shares Outstanding for Ciena (CIEN)

As of · Reported

Metric

Latest period

146.31M

YoY change

-0.5%

5Y CAGR

-1.4%

Peak year (2017)

169.92M

Shares Outstanding history chart for Ciena (CIEN) from 1997 to 2025

Latest: 145.25M

Shares Outstanding growth chart for Ciena (CIEN) from 1997 to 2025

Latest: -0.5%

Shares Outstanding history table for Ciena (CIEN) from 1997 to 2025

  • 2025145.25M-0.5%
  • 2024145.96M-2.3%
  • 2023149.38M-1.8%
  • 2022152.19M-2.9%
  • 2021156.74M+0.5%
  • 2020155.96M-1.1%
  • 2019157.61M+9.7%
  • 2018143.74M-15.4%
  • 2017169.92M+12.8%
  • 2016150.70M+25.5%
  • 2015120.10M+13.5%
  • 2014105.78M+3.4%
  • 2013102.35M+3.0%
  • 201299.34M+3.6%
  • 201195.85M+3.0%
  • 201093.10M+2.1%
  • 200991.17M-17.6%
  • 2008110.61M+11.0%
  • 200799.60M+17.2%
  • 200685.01M+3.5%
  • 200582.17M+10.3%
  • 200474.52M+16.7%
  • 200363.83M+22.3%
  • 200252.19M+17.1%
  • 200144.56M+4.1%
  • 200042.82M+12.2%
  • 199938.16M+4.4%
  • 199836.55M+23.5%
  • 199729.59M—

Shares Outstanding values are taken from Ciena's reported income statements (quarterly 10-Q and annual 10-K filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.

About Shares Outstanding at Ciena (CIEN)

According to Ciena's latest reported financial statements, the company's latest reported diluted shares outstanding is 146.31M. Diluted weighted-average shares outstanding is the share count used to compute per-share metrics like EPS. Buybacks lower it; new issuance, stock-based compensation, and convertible securities raise it. Multiply by the stock price for market capitalization.

Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .

In 2025, Ciena (CIEN) diluted shares outstanding totalled 145.25M – edged down 0.5% year-over-year.

Looking at the 2020–2025 (5 years) stretch, Ciena diluted shares outstanding compounded at -1.4% per year, with a net decline across the window.

Ciena diluted shares outstanding peaked at 169.92M in 2017; the latest annual figure is 145.25M in 2025 (14.5% below peak).

Across the available history, diluted shares outstanding reached its high of 169.92M in 2017 and its low of 29.59M in 1997.

Ciena Shares Outstanding by Year

Ciena Shares Outstanding 2025: 145.25M

Ciena diluted shares outstanding in 2025 was 145.25M, edged down 0.5% below 2024.

Ciena Shares Outstanding 2024: 145.96M

2024's diluted shares outstanding for Ciena came in at 145.96M, edged down 2.3% below 2023.

Ciena Shares Outstanding 2023: 149.38M

Ciena posted diluted shares outstanding of 149.38M in 2023, edged down 1.8% below 2022.

Ciena Shares Outstanding 2022: 152.19M

In 2022, Ciena reported diluted shares outstanding of 152.19M, edged down 2.9% below 2021.

Ciena Shares Outstanding 2021: 156.74M

Ciena diluted shares outstanding in 2021 was 156.74M.

See more financial history for Ciena (CIEN).

Sector peers by Shares Outstanding

Technology peers of Ciena (CIEN), ranked by their latest diluted shares outstanding

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