| 2024-12-12 | +23.1% | legal | SEC EDGAR | CIEN 8-K: 2.02, 5.02, 5.03, 7.01 (SEC Filing) |
| 2025-09-04 | +22.5% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2021-12-09 | +17.7% | legal | SEC EDGAR | CIEN 8-K: 2.02, 8.01 (SEC Filing) |
| 2022-12-08 | +17.4% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2026-04-01 | +14.5% | earnings | Seeking Alpha | Sandisk gains most among S&P500 tech stocks in Q1; AppLovin biggest loser |
| 2026-04-01 | +14.5% | news | Yahoo Finance | Ciena (CIEN) Valuation Check After Strong Recent Share Price Performance - Yahoo Finance |
| 2026-03-09 | +14.0% | analyst | TIKR.com | Bank of America Upgrades Ciena Stock On Bullish Cloud Spending Outlook - TIKR.com |
| 2025-06-05 | -13.9% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2026-03-18 | +13.1% | news | Seeking Alpha | Ciena Corporation (CIEN) Presents at OFC 2026 - Slideshow |
| 2026-03-18 | +13.1% | news | Yahoo Finance | Ciena Corporation (CIEN) is Gaining From Hyperscaler And AI-Related Demand - Yahoo Finance |
| 2024-03-07 | -12.8% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2026-03-05 | -12.5% | earnings | Seeking Alpha | Ciena outlines $5.9B–$6.3B revenue outlook for 2026 while expanding AI-driven optical market leadership |
| 2026-03-05 | -12.5% | earnings | Seeking Alpha | Ciena Corporation (CIEN) Q1 2026 Earnings Call Transcript |
| 2026-03-05 | -12.5% | earnings | Seeking Alpha | Ciena slumps 15% despite Q1 beat, raising fiscal '26 revenue outlook |
| 2026-03-05 | -12.5% | earnings | Seeking Alpha | Ciena Corporation 2026 Q1 - Results - Earnings Call Presentation |
| 2026-03-05 | -12.5% | earnings | Seeking Alpha | Ciena beats top-line and bottom-line estimates; introduces Q2 and raises FY26 outlook |
| 2026-03-05 | -12.5% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2026-03-05 | -12.5% | earnings | Investor's Business Daily | Ciena Earnings Soar. But The AI Stock Is Falling. - Investor's Business Daily |
| 2026-03-05 | -12.5% | analyst | Investing.com | Morgan Stanley raises Ciena stock price target on margin strength - Investing.com |
| 2026-03-05 | -12.5% | earnings | Seeking Alpha | Ciena slumps 15% despite Q1 beat, raising fiscal '26 revenue outlook - Seeking Alpha |
| 2023-08-31 | +12.3% | legal | SEC EDGAR | CIEN 8-K: 2.02, 5.02 (SEC Filing) |
| 2022-09-01 | -12.1% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2025-12-18 | +11.6% | news | Yahoo Finance | Bull of the Day: Ciena Corp. (CIEN) - Yahoo Finance |
| 2026-04-07 | +11.2% | news | The Motley Fool | Why Ciena Stock Marched More Than 11% Higher In March - The Motley Fool |
| 2026-03-23 | +11.1% | news | Yahoo Finance | Ciena Corporation (CIEN) Surged on Strong Demand from Cloud Providers - Yahoo Finance |
| 2026-03-23 | +11.1% | analyst | Investing.com | Stifel raises Ciena stock price target to $430 on AI networking - Investing.com |
| 2026-03-23 | +11.1% | news | The Motley Fool | Why Ciena Stock Rocked the Market on Monday - The Motley Fool |
| 2025-01-21 | +10.4% | legal | SEC EDGAR | CIEN 8-K: 1.01, 2.03 (SEC Filing) |
| 2026-03-04 | -10.3% | earnings | Seeking Alpha | Ciena Q1 2026 Earnings Preview |
| 2026-03-04 | -10.3% | news | Yahoo Finance | Jim Cramer Highlights Ciena’s Return to the S&P 500 - Yahoo Finance |
| 2026-02-02 | +10.2% | legal | Seeking Alpha | Ciena: Riding The Second Wave Of AI Infrastructure Growth |
| 2026-03-31 | +10.1% | news | Seeking Alpha | Follow The Photons: The Case For Ciena As AI Infrastructure's Hidden Backbone |
| 2026-03-31 | +10.1% | news | Stock Titan | India telecom hits 1.6 Tb/s in data center test with Ciena gear - Stock Titan |
| 2026-03-31 | +10.1% | earnings | MarketBeat | J. Safra Sarasin Holding AG Cuts Stock Position in Ciena Corporation $CIEN - MarketBeat |
| 2026-02-09 | +9.9% | news | Yahoo Finance | Ciena (CIEN) Soars 7.3%: Is Further Upside Left in the Stock? - Yahoo Finance |
| 2026-02-09 | +9.9% | news | FinancialContent | Ciena Corporation (CIEN): The Optical Nerve Center of the AI Revolution - FinancialContent |
| 2021-06-03 | +9.8% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2025-12-12 | -9.6% | news | Yahoo Finance | Ciena (CIEN) Soars to More Than 2 Decade High. Here’s What Sparked the Rally - Yahoo Finance |
| 2025-12-12 | -9.6% | earnings | Yahoo Finance | CIEN Q4 Earnings Crush Estimates on Record Sales, AI Trends Lift Stock - Yahoo Finance |
| 2023-06-06 | -8.8% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2026-02-20 | +8.6% | news | Seeking Alpha | AI-related stocks edge higher, led by networking, while CoreWeave drags hyperscalers down |
| 2026-02-20 | +8.6% | news | Quiver Quantitative | Ciena stock jumps as AI data-center infrastructure trade stays hot, keeping focus on strong 2026 growth outlook - Quiver Quantitative |
| 2026-03-25 | -8.4% | legal | Yahoo Finance | Why Ciena (CIEN) Is Up 16.0% After FTSE Inclusion And Quantum-Secure Networking Showcase - Yahoo Finance |
| 2026-03-16 | +8.4% | news | Yahoo Finance | Madison Small Cap Fund’s Standout Performer: Ciena Corp (CIEN) - Yahoo Finance |
| 2022-03-07 | -8.0% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2025-11-24 | +7.7% | news | Yahoo Finance | Ciena Corporation (CIEN) Surged Due to AI Boom - Yahoo Finance |
| 2026-03-07 | +7.4% | analyst | Seeking Alpha | Notable analyst calls this week: MongoDB, Marvell and Southern Co among top picks |
| 2026-02-19 | +7.3% | news | Yahoo Finance | Is It Too Late To Consider Ciena (CIEN) After Its Strong Share Price Surge? - Yahoo Finance |
| 2026-03-24 | +7.1% | news | Yahoo Finance | Is Ciena Corporation (CIEN) A Good Stock To Buy Now? - Yahoo Finance |
| 2026-03-24 | +7.1% | news | Investing.com | Ciena Corp stock hits 52-week high at 420.0 USD - Investing.com |
| 2026-03-17 | +7.0% | news | Yahoo Finance | Ciena Surges 73% in 3 Months: Should Investors Still Buy the Stock? - Yahoo Finance |
| 2026-03-17 | +7.0% | news | Zacks Investment Research | Ciena Surges 73% in 3 Months: Should Investors Still Buy the Stock? - Zacks Investment Research |
| 2022-02-15 | +7.0% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2026-03-06 | +6.9% | earnings | Seeking Alpha | Ciena Q1 Earnings Review: Reiterate Buy Rating |
| 2026-03-06 | +6.9% | analyst | Seeking Alpha | Ciena in spotlight as Bank of America upgrades after sharp sell-off |
| 2026-03-06 | +6.9% | news | Yahoo Finance | Down Almost 20%, Should You Buy the Ugly Dip in Ciena Stock? - Yahoo Finance |
| 2026-03-15 | +6.8% | news | TIKR.com | Ciena AI Backlog: $600 Target Price as Optical Networking Surges - TIKR.com |
| 2026-03-14 | +6.8% | news | Yahoo Finance | Ciena Corp. (CIEN) Unveils Networking Innovations for AI-Driven Bandwidth Growth - Yahoo Finance |
| 2026-02-04 | -6.8% | news | Seeking Alpha | Steven Cress' Top 10 AI Stocks (Recap & Update) |
| 2025-12-08 | +6.7% | earnings | Yahoo Finance | Ciena's Q4 Earnings Coming Up: What's in the Cards for CIEN Stock? - Yahoo Finance |
| 2026-02-05 | +6.4% | news | TIKR.com | Ciena Stock Climbs on News of Upcoming Inclusion in S&P 500 Index - TIKR.com |
| 2024-10-02 | +6.3% | legal | SEC EDGAR | CIEN 8-K: 8.01 and (SEC Filing) |
| 2026-03-30 | -5.9% | news | Seeking Alpha | Ciena: Up 71% YTD - OFC Event Fuels More Upside |
| 2026-01-30 | +5.7% | executive | TIKR.com | Ciena Stock Fell 6% Last Week Following CEO And Senior Executive Share Sales - TIKR.com |
| 2026-04-08 | +5.7% | news | Seeking Alpha | Chip and AI-related stocks spring as US and Iran agree to temporary ceasefire |
| 2026-04-08 | +5.7% | news | Yahoo Finance | Here’s Why Ciena Corporation (CIEN) is an Unstoppable Technology Stock - Yahoo Finance |
| 2026-04-08 | +5.7% | earnings | MarketBeat | Ciena (NYSE:CIEN) Stock Price Up 11.4% - Time to Buy? - MarketBeat |
| 2022-06-02 | -5.3% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2026-04-16 | +5.2% | news | TradingView | Ciena Soars 182% in 6 Months: Should Investors Buy the Stock Now? - TradingView |
| 2026-04-16 | +5.2% | news | GuruFocus | Ciena Corp (CIEN) Stock Up 4.1% but GF Value Says Overvalued -- GF Score: 74/100 - GuruFocus |
| 2026-04-16 | +5.2% | news | Stock Titan | Ciena (CIEN) SVP sells 2,829 shares under Rule 10b5-1 plan - Stock Titan |
| 2024-06-06 | -5.0% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2026-04-15 | +5.0% | news | Seeking Alpha | Investors prioritize data center components in short supply, such as memory, and optical: BNP |
| 2026-04-15 | +5.0% | earnings | MarketBeat | Robeco Institutional Asset Management B.V. Acquires 50,687 Shares of Ciena Corporation $CIEN - MarketBeat |
| 2025-08-19 | -4.9% | news | Yahoo Finance | Ciena Corporation (NYSE:CIEN) Stock Is Going Strong But Fundamentals Look Uncertain: What Lies Ahead ? - Yahoo Finance |
| 2024-09-04 | -4.8% | legal | SEC EDGAR | CIEN 8-K: 2.02, 5.02 (SEC Filing) |
| 2025-12-16 | -4.3% | analyst | Yahoo Finance | Raymond James Raises Ciena (CIEN) Price Target to $250 After FY4Q Results - Yahoo Finance |
| 2023-12-07 | -4.3% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2026-04-11 | -4.2% | news | 24/7 Wall St. | Think It’s Too Late to Buy Ciena? Here’s the Case for Getting In Now - 24/7 Wall St. |
| 2025-12-04 | +4.1% | legal | SEC EDGAR | CIEN 8-K: 5.02 (SEC Filing) |
| 2026-04-23 | +4.0% | news | FX Empire | Top Fiber Optics Stocks In 2026 |
| 2026-04-23 | +4.0% | news | Zacks | Zacks Industry Outlook Highlights Corning, Ciena and Ooma |
| 2026-04-23 | +4.0% | earnings | MarketBeat | Peregrine Capital Management LLC Sells 62,531 Shares of Ciena Corporation $CIEN - MarketBeat |
| 2026-04-23 | +4.0% | earnings | MarketBeat | 3,200 Shares in Ciena Corporation $CIEN Bought by Milestone Asset Management LLC - MarketBeat |
| 2026-04-23 | +4.0% | news | GuruFocus | Is Ciena Corp (CIEN) Overvalued After 3.4% Rally? GF Value Says - GuruFocus |
| 2025-10-07 | +4.0% | legal | SEC EDGAR | CIEN 8-K: 8.01 (SEC Filing) |
| 2026-01-20 | -3.8% | analyst | Seeking Alpha | Ciena gets a rating cut, while BofA highlights outlook for networking tech stocks |
| 2025-12-03 | -3.8% | earnings | Yahoo Finance | Here are the Drivers of Ciena Corporation’s (CIEN) Surge in Q3 - Yahoo Finance |
| 2026-02-12 | +3.7% | executive | Quiver Quantitative | CIENA CORP ($CIEN) President and CEO 2025 Pay Revealed - Quiver Quantitative |
| 2026-02-12 | +3.7% | news | Stock Titan | Ciena’s 2026 shareholder meeting goes virtual with Q&A access - Stock Titan |
| 2026-04-05 | -3.5% | earnings | MarketBeat | Exchange Traded Concepts LLC Makes New $795,000 Investment in Ciena Corporation $CIEN - MarketBeat |
| 2026-04-05 | -3.5% | news | Yahoo Finance | Jim Cramer Discusses Why Fiber Optic Plays Like Ciena Provided Recent Market Gains - Yahoo Finance |
| 2026-04-04 | -3.5% | earnings | MarketBeat | Nisa Investment Advisors LLC Grows Stock Holdings in Ciena Corporation $CIEN - MarketBeat |
| 2026-04-03 | -3.5% | earnings | MarketBeat | Gary Smith Sells 2,952 Shares of Ciena (NYSE:CIEN) Stock - MarketBeat |
| 2026-04-03 | -3.5% | executive | Stock Titan | CIENA (CIEN) CEO Gary Smith sells 2,952 shares in pre-set 10b5-1 trade - Stock Titan |
| 2026-01-09 | +3.2% | news | Yahoo Finance | Ciena Corporation (CIEN) is Trading Close to 52-Week High - Yahoo Finance |
| 2026-01-09 | +3.2% | analyst | Yahoo Finance | Argus Upgrades Ciena (CIEN) Amid AI Networking Surge, Record $5B Backlog - Yahoo Finance |
| 2026-02-13 | +3.0% | news | Yahoo Finance | Ciena Corporation’s (CIEN) Underweight Position Hurt BTX’s Performance - Yahoo Finance |
| 2023-10-03 | -2.9% | legal | SEC EDGAR | CIEN 8-K: 5.02, 7.01 (SEC Filing) |
| 2026-03-03 | -2.7% | analyst | Yahoo Finance | Morgan Stanley Raises its Price Target on Ciena Corporation (CIEN) to $280 and Maintains an Equal Weight Rating - Yahoo Finance |
| 2026-03-03 | -2.7% | earnings | Yahoo Finance | Will Ciena (CIEN) Beat Estimates Again in Its Next Earnings Report? - Yahoo Finance |
| 2022-11-22 | -2.6% | legal | SEC EDGAR | CIEN 8-K: 7.01, 8.01 (SEC Filing) |
| 2026-01-13 | +2.4% | news | Seeking Alpha | Ciena Corporation (CIEN) Presents at 28th Annual Needham Growth Conference Transcript |
| 2026-04-10 | -2.4% | news | Yahoo Finance | Ciena Shares Higher from Big Money Boosts - Yahoo Finance |
| 2023-01-24 | -2.4% | legal | SEC EDGAR | CIEN 8-K: 5.02 (SEC Filing) |
| 2023-03-06 | +2.3% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2025-12-21 | +2.2% | news | Yahoo Finance | Jim Cramer Says “This Ciena is Much Better Than the Ciena of 2000” - Yahoo Finance |
| 2026-01-02 | -2.1% | earnings | Yahoo Finance | UBS Boosts Ciena (CIEN) Price Target After Blowout Earnings - Yahoo Finance |
| 2025-09-12 | +2.1% | news | Yahoo Finance | Ciena's Stock Skyrockets 143% in 12 Months: Is More Upside Left? - Yahoo Finance |
| 2026-01-05 | +2.0% | news | Yahoo Finance | Ciena (CIEN) Valuation Check After Strong Multi Month Share Price Gains - Yahoo Finance |
| 2025-06-18 | +2.0% | legal | SEC EDGAR | CIEN 8-K: 5.02, 7.01 (SEC Filing) |
| 2026-01-15 | +1.9% | news | Seeking Alpha | Steven Cress' Top 10 Stocks For 2026 |
| 2026-01-15 | +1.9% | news | Yahoo Finance | Ciena Corporation (CIEN) Has Emerged as a High-Growth, Key Infrastructure Winner in the AI Era. Here’ Why - Yahoo Finance |
| 2026-01-22 | -1.7% | news | Seeking Alpha | Coherent, Ciena, Lumentum viewed favorably in optical networking space: Oppenheimer |
| 2025-09-07 | +1.7% | news | Yahoo Finance | Ciena Corporation (CIEN) “Is A Terrific Company,” Says Jim Cramer - Yahoo Finance |
| 2021-11-03 | +1.7% | legal | SEC EDGAR | CIEN 8-K: 8.01 (SEC Filing) |
| 2022-01-18 | -1.7% | legal | SEC EDGAR | CIEN 8-K: 1.01, 2.03 (SEC Filing) |
| 2025-03-11 | +1.6% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2025-08-26 | +1.6% | news | Yahoo Finance | Why Ciena (CIEN) is a Top Momentum Stock for the Long-Term - Yahoo Finance |
| 2024-04-23 | +1.4% | legal | SEC EDGAR | CIEN 8-K: 5.02 (SEC Filing) |
| 2026-04-22 | +1.3% | news | Zacks | 3 Communication Stocks Likely to Benefit Despite Geopolitical Unrest |
| 2026-04-22 | +1.3% | news | Zacks | Are Computer and Technology Stocks Lagging Ciena (CIEN) This Year? |
| 2026-04-22 | +1.3% | news | Zacks | 5 Top-Ranked AI Infrastructure Bigwigs for Sparkling Returns in 2026 |
| 2026-04-22 | +1.3% | analyst | Simply Wall St. | Ciena’s Valuation After JGA AI Connectivity Upgrade And Strong Recent Share Price Performance |
| 2026-04-22 | +1.3% | news | Yahoo Finance | Are Computer and Technology Stocks Lagging Ciena (CIEN) This Year? - Yahoo Finance |
| 2026-04-22 | +1.3% | earnings | MarketBeat | Ciena (NYSE:CIEN) Shares Down 7.1% - Time to Sell? - MarketBeat |
| 2026-03-12 | +1.3% | analyst | Seeking Alpha | TD Cowen initiates Arista, Coherent and Ciena at Buy; Lumentum receives Hold rating |
| 2022-01-12 | -1.2% | legal | SEC EDGAR | CIEN 8-K: 8.01 and (SEC Filing) |
| 2026-04-21 | -1.2% | news | Simply Wall St. | Is It Too Late To Consider Ciena (CIEN) After Its 7x One Year Surge? |
| 2026-04-21 | -1.2% | earnings | Seeking Alpha | Arista Networks stands out among optical/networking stocks entering Q1 earnings: Needham |
| 2026-04-21 | -1.2% | news | Seeking Alpha | Ciena's New Growth Phase Is Inside The Data Center |
| 2026-04-21 | -1.2% | news | Seeking Alpha | Ciena's New Growth Phase Is Inside The Data Center (NYSE:CIEN) - Seeking Alpha |
| 2026-04-21 | -1.2% | earnings | MarketBeat | Mirae Asset Global Investments Co. Ltd. Purchases Shares of 32,363 Ciena Corporation $CIEN - MarketBeat |
| 2026-04-21 | -1.2% | earnings | MarketBeat | Asset Management One Co. Ltd. Buys New Position in Ciena Corporation $CIEN - MarketBeat |
| 2023-01-23 | -1.2% | legal | SEC EDGAR | CIEN 8-K: 1.01, 2.03 (SEC Filing) |
| 2026-01-16 | +1.1% | news | Yahoo Finance | Ciena Stock Gains 43% in 3 Months: Should Investors Buy or Hold Now? - Yahoo Finance |
| 2023-02-15 | -1.0% | legal | SEC EDGAR | CIEN 8-K: 1.01 and (SEC Filing) |
| 2026-02-24 | +0.9% | M&A | Seeking Alpha | Networking, AI stocks jump on back of AMD-Meta megadeal |
| 2026-02-24 | +0.9% | news | Yahoo Finance | Ciena Corporation (CIEN): A Bull Case Theory - Yahoo Finance |
| 2025-12-13 | -0.9% | earnings | Yahoo Finance | Investors more bullish on Ciena (NYSE:CIEN) this week as stock lifts 8.3%, despite earnings trending downwards over past three years - Yahoo Finance |
| 2025-09-22 | +0.9% | legal | SEC EDGAR | CIEN 8-K: 8.01 and (SEC Filing) |
| 2026-01-14 | -0.8% | earnings | Seeking Alpha | Micron Technology tops Seeking Alpha's tech quant picks ahead of Q4 earnings |
| 2026-01-14 | -0.8% | news | Seeking Alpha | Ciena: A Stock To Benefit From AI Infrastructure Buildout |
| 2026-01-14 | -0.8% | earnings | Yahoo Finance | Pulling back 3.1% this week, Ciena's NYSE:CIEN) three-year decline in earnings may be coming into investors focus - Yahoo Finance |
| 2026-01-14 | -0.8% | news | Seeking Alpha | Ciena: A Stock To Benefit From AI Infrastructure Buildout (NYSE:CIEN) - Seeking Alpha |
| 2026-01-24 | +0.8% | analyst | Yahoo Finance | Bank of America Downgrades Ciena (CIEN), Morgan Stanley Lowers PT - Yahoo Finance |
| 2024-03-26 | +0.7% | legal | SEC EDGAR | CIEN 8-K: 5.01, 5.02 (SEC Filing) |
| 2025-12-11 | -0.7% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2026-02-14 | -0.7% | earnings | Yahoo Finance | Ciena (NYSE:CIEN) investors are up 12% in the past week, but earnings have declined over the last three years - Yahoo Finance |
| 2026-04-17 | +0.6% | executive | Stock Titan | Ciena (CIEN) CEO Gary Smith sells 2,952 shares in pre-set 10b5-1 trade - Stock Titan |
| 2026-04-17 | +0.6% | news | Stock Titan | Ciena (CIEN) SVP Gage Brodie sells 1,200 shares in Rule 10b5-1 trade - Stock Titan |
| 2026-04-17 | +0.6% | executive | Stock Titan | CIENA (CIEN) strategy chief Rothenstein sells 2,500 shares under 10b5-1 plan - Stock Titan |
| 2026-04-17 | +0.6% | earnings | MarketBeat | Insider Selling: Ciena (NYSE:CIEN) SVP Sells 1,200 Shares of Stock - MarketBeat |
| 2026-04-19 | -0.6% | earnings | MarketBeat | KBC Group NV Increases Stock Holdings in Ciena Corporation $CIEN - MarketBeat |
| 2026-04-20 | +0.6% | earnings | MarketBeat | Morgan Stanley Forecasts Strong Price Appreciation for Ciena (NYSE:CIEN) Stock - MarketBeat |
| 2026-01-23 | +0.4% | news | Yahoo Finance | Ciena Corporation (CIEN) Delivered an Outstanding 176% Return - Yahoo Finance |
| 2022-01-10 | +0.4% | legal | SEC EDGAR | CIEN 8-K: 8.01 and (SEC Filing) |
| 2026-02-11 | -0.4% | news | Seeking Alpha | Ciena: AI Rebirth Fairly Valued |
| 2026-02-11 | -0.4% | news | simplywall.st | Ciena Corporation (NYSE:CIEN) Looks Just Right With A 30% Price Jump - simplywall.st |
| 2021-12-14 | -0.4% | legal | SEC EDGAR | CIEN 8-K: 1.01, 7.01 (SEC Filing) |
| 2023-10-25 | +0.3% | legal | SEC EDGAR | CIEN 8-K: 1.01, 1.02, 2.03 (SEC Filing) |
| 2026-02-26 | -0.3% | news | Seeking Alpha | Ciena: Expensive For A Reason |
| 2026-02-26 | -0.3% | earnings | Yahoo Finance | Ciena to Report Q1 Earnings: How to Approach the Stock Now? - Yahoo Finance |
| 2026-02-26 | -0.3% | news | Seeking Alpha | Ciena: Expensive For A Reason (NYSE:CIEN) - Seeking Alpha |
| 2021-09-02 | -0.2% | legal | SEC EDGAR | CIEN 8-K: 2.02 and (SEC Filing) |
| 2026-04-09 | -0.1% | earnings | MarketBeat | 6,632 Shares in Ciena Corporation $CIEN Acquired by Jackson Square Capital LLC - MarketBeat |
| 2026-04-09 | -0.1% | earnings | MarketBeat | Ciena (NYSE:CIEN) Reaches New 1-Year High - What's Next? - MarketBeat |
| 2026-04-26 | — | earnings | MarketBeat | Universal Beteiligungs und Servicegesellschaft mbH Increases Stock Holdings in Ciena Corporation $CIEN - MarketBeat |
| 2026-04-26 | — | earnings | MarketBeat | Ciena Corporation $CIEN Shares Sold by Arizona State Retirement System - MarketBeat |
| 2026-04-26 | — | earnings | MarketBeat | Impax Asset Management Group plc Cuts Stock Position in Ciena Corporation $CIEN - MarketBeat |
| 2026-04-26 | — | earnings | MarketBeat | Ciena Corporation $CIEN Stake Boosted by Teacher Retirement System of Texas - MarketBeat |
| 2026-04-25 | — | news | Insider Monkey | Jim Cramer Notes Stocks Like Marvell Are “All on Fire” |
| 2026-04-25 | — | earnings | MarketBeat | Ciena Corporation (NYSE:CIEN) Receives Average Rating of "Moderate Buy" from Analysts - MarketBeat |
| 2026-04-25 | — | earnings | MarketBeat | WT Asset Management Ltd Makes New Investment in Ciena Corporation $CIEN - MarketBeat |
| 2026-04-25 | — | earnings | MarketBeat | Virtus Wealth Solutions LLC Takes $17.24 Million Position in Ciena Corporation $CIEN - MarketBeat |
| 2026-04-25 | — | news | TechStock² | Ciena Stock Gets a BlackRock Filing as the AI Networking Trade Heats Up - TechStock² |
| 2026-04-24 | — | news | Barrons.com | This Networking Stock Is Soaring 80%. It’s Finally Getting the AI Premium. |
| 2026-04-24 | — | earnings | Zacks | GLW Stock Before Q1 Earnings: Is it a Smart Buy or Risky Move? |
| 2026-04-24 | — | news | Stock Titan | BlackRock (NYSE: CIEN) reports 11.27M shares, 8.0% stake - Stock Titan |
| 2026-04-24 | — | earnings | MarketBeat | KLP Kapitalforvaltning AS Raises Stock Holdings in Ciena Corporation $CIEN - MarketBeat |