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STOCKHOLDERS’ EQUITY
 12 Months Ended
Nov. 01, 2025
Equity [Abstract]  
STOCKHOLDERS' EQUITY STOCKHOLDERS’ EQUITY
Stock Repurchase Program and Accelerated Share Repurchase Agreement
On December 9, 2021, Ciena announced that its Board of Directors replaced its previously authorized program with a program to repurchase up to $1.0 billion of its common stock. During fiscal 2023, Ciena repurchased 5.7 million shares of its common stock under this program, for an aggregate purchase price of $250.0 million at an average price of $44.08 per share. During fiscal 2024, Ciena repurchased an additional 4.5 million shares of its common stock, for an aggregate purchase price of $250.0 million at an average price of $55.07 per share, which completed the authorized repurchases contemplated under the program. In aggregate, Ciena repurchased 18.6 million shares for an aggregate purchase price of $1.0 billion, at an average price of $53.63 per share.
On October 2, 2024, Ciena announced that its Board of Directors authorized a program to repurchase up to $1.0 billion of its common stock, commencing in Ciena’s fiscal year 2025 and continuing through the end of Ciena’s fiscal year 2027. Ciena may purchase shares at management’s discretion in the open market, in privately negotiated transactions, in transactions structured through investment banking institutions, or a combination of the foregoing. Ciena may also, from time to time, enter into Rule 10b5-1 plans to facilitate repurchases of its shares under this authorization. The amount and timing of repurchases are subject to a variety of factors, including liquidity, cash flow, stock price, and general business and market conditions. The program may be modified, suspended or discontinued at any time.
During fiscal 2025, Ciena repurchased approximately 4.0 million shares of its common stock, for an aggregate purchase price of $329.7 million at an average price of $83.38 per share. As of November 1, 2025, Ciena has an aggregate of $670.3 million authorized and remaining shares under its stock repurchase program.
The purchase price for the shares of Ciena’s stock repurchased is reflected as a reduction of common stock and additional paid-in capital.

Impact of Excise Tax on Share Repurchases

Beginning fiscal 2023, a 1% excise tax on the market value of shares repurchased, net of compensatory shares issued became effective. During fiscal 2025 and fiscal 2024, a net excise tax of of $1.3 million and $1.4 million, respectively, was recorded to additional paid-in capital on the Consolidated Balance Sheets.

Stock Repurchases Related to Restricted Stock Unit Tax Withholdings
Ciena repurchases shares of common stock to satisfy employee tax withholding obligations due upon vesting of stock unit awards. The related purchase price of $91.3 million for the shares of Ciena’s stock repurchased during fiscal 2025 is reflected as a reduction to stockholders’ equity. Ciena is required to allocate the purchase price of the repurchased shares as a reduction of common stock and additional paid-in capital.