What is the current shares outstanding of CIEN?

As of today, CIEN shares outstanding is 141.81M

What is 1-year change in CIEN shares outstanding?

CIEN shares outstanding is up +0.33% year-over-year

CIEN shares outstanding is down -4.68% over the past 3 years

CIEN shares outstanding is currently -9.29% below its historical high of 156.34M set on January 31, 2019

141.81M88.99K-0.06%

September 5, 2026

Current Value: As of today, CIEN has 141.81M outstanding shares, down -0.06% on September 5, 2026
Historical Performance: CIEN shares outstanding is up +0.33% year-over-year, down -4.68% over the past 3 years
All-Time High Comparison: CIEN shares outstanding is currently -9.29% below its historical high of 156.34M set on January 31, 2019
3-Year Low Comparison: CIEN shares outstanding is +0.56% above its 3-year low of 141.02M reached on October 31, 2025

CIEN Performance
Metric	Date	Value	1Y	3Y	5Y
Shares Outstanding	Sep 5, 26	141.81M	+0.3%	-4.7%	-8.6%
Price	Oct 27, 26	$351.15	+91.8%	+756.0%	+546.2%
Market Cap	Oct 27, 26	$50B	+92.5%	+716.0%	+490.8%
PE Ratio	Oct 27, 26	78.36	-63.6%	+182.5%	+324.9%
TTM Revenue	Jul 1, 26	$6.02B	+32.6%	+42.4%	+76.7%
TTM EPS	Jul 1, 26	$4.48	+362.8%	+203.1%	+52.1%
	Oct 27, 26	$50.45B	+92.7%	+681.3%	+544.2%
TTM Net Income	Jul 1, 26	$654.41M	+364.5%	+195.8%	+41.7%
TTM Dividend	Oct 27, 26	-	–	–	–

CIEN Shares Outstanding Highs Comparison
Period	High	Date	Current
1Y	141.90M	Sep 4, 26	-0.1%
3Y	148.77M	N/A	-4.7%
5Y	155.10M	N/A	-8.6%
All	156.34M	Jan 31, 19	-9.3%

CIEN Shares Outstanding Lows Comparison
Period	Low	Date	Current
1Y	141.02M	Oct 31, 25	+0.6%
3Y	141.02M	Oct 31, 25	+0.6%
5Y	141.02M	Oct 31, 25	+0.6%
All	27.50M	Apr 29, 97	+415.7%

What is the current shares outstanding of CIEN?: As of today, CIEN shares outstanding is 141.81M
What is 1-year change in CIEN shares outstanding?: CIEN shares outstanding is up +0.33% year-over-year
What is 3-year change in CIEN shares outstanding?: CIEN shares outstanding is down -4.68% over the past 3 years
How far is CIEN shares outstanding from its all-time high?: CIEN shares outstanding is currently -9.29% below its historical high of 156.34M set on January 31, 2019