David M. Rothenstein
Known title: EVP & Chief Strategy OfficerCIK: 0001444157
Associated companies
Transaction History
| CIEN | ▼ Sell | Tax Withholding | 679 | $237K | 9/20/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 204 | $71K | 9/20/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 811 | $283K | 9/20/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 436 | $152K | 9/20/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 220 | $77K | 9/20/2026 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $826K | 9/15/2026 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $1.1M | 8/14/2026 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $1.1M | 7/15/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 679 | $291K | 6/20/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 204 | $87K | 6/20/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 811 | $347K | 6/20/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 436 | $187K | 6/20/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 220 | $94K | 6/20/2026 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $1.1M | 6/15/2026 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $1.4M | 5/15/2026 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $1.2M | 4/15/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 472 | $181K | 3/20/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 174 | $67K | 3/20/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 220 | $84K | 3/20/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 436 | $167K | 3/20/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 811 | $311K | 3/20/2026 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $863K | 3/16/2026 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $750K | 2/17/2026 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $548K | 1/9/2026 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 679 | $156K | 12/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 204 | $47K | 12/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 811 | $187K | 12/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 436 | $100K | 12/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 439 | $101K | 12/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 8,682 | $2.0M | 12/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 1,819 | $419K | 12/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 2,091 | $482K | 12/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 1,557 | $359K | 12/20/2025 | View on chart |
| CIEN | ▲ Buy | Grant | 15,910 | $0 | 12/16/2025 | View on chart |
| CIEN | ▲ Buy | Grant | 7,148 | $0 | 12/16/2025 | View on chart |
| CIEN | ▲ Buy | Grant | 17,664 | $0 | 12/16/2025 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $552K | 12/15/2025 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $479K | 11/17/2025 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $426K | 10/15/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 204 | $28K | 9/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 811 | $112K | 9/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 436 | $60K | 9/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 308 | $43K | 9/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 679 | $94K | 9/20/2025 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $330K | 9/15/2025 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $226K | 8/15/2025 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $206K | 7/15/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 460 | $34K | 6/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 138 | $10K | 6/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 550 | $41K | 6/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 298 | $22K | 6/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 296 | $22K | 6/20/2025 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $185K | 6/16/2025 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $200K | 5/15/2025 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $149K | 4/15/2025 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $172K | 3/24/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 460 | $30K | 3/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 550 | $36K | 3/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 296 | $19K | 3/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 138 | $9K | 3/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 298 | $20K | 3/20/2025 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 667 | $58K | 12/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 797 | $70K | 12/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 432 | $38K | 12/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 3,035 | $265K | 12/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 1,024 | $89K | 12/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 498 | $44K | 12/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 200 | $17K | 12/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 1,530 | $134K | 12/20/2024 | View on chart |
| CIEN | ▲ Buy | Grant | 6,333 | $0 | 12/17/2024 | View on chart |
| CIEN | ▲ Buy | Grant | 6,283 | $0 | 12/17/2024 | View on chart |
| CIEN | ▲ Buy | Grant | 14,182 | $0 | 12/17/2024 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $312K | 12/16/2024 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $241K | 11/15/2024 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $236K | 10/15/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 344 | $20K | 9/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 460 | $27K | 9/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 684 | $40K | 9/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 298 | $18K | 9/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 138 | $8K | 9/20/2024 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $197K | 9/16/2024 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $183K | 8/15/2024 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $171K | 7/15/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 460 | $22K | 6/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 138 | $6K | 6/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 550 | $26K | 6/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 298 | $14K | 6/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 344 | $16K | 6/20/2024 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $161K | 6/17/2024 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $172K | 5/15/2024 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $160K | 4/15/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 344 | $17K | 3/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 298 | $15K | 3/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 460 | $23K | 3/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 138 | $7K | 3/20/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 550 | $28K | 3/20/2024 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $176K | 3/15/2024 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $198K | 2/15/2024 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $174K | 1/16/2024 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 344 | $15K | 12/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 418 | $18K | 12/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 769 | $34K | 12/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 1,024 | $45K | 12/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 1,874 | $82K | 12/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 667 | $29K | 12/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 200 | $9K | 12/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 298 | $13K | 12/20/2023 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $155K | 12/15/2023 | View on chart |
| CIEN | ▲ Buy | Grant | 26,388 | $0 | 12/12/2023 | View on chart |
| CIEN | ▲ Buy | Grant | 2,309 | $0 | 12/12/2023 | View on chart |
| CIEN | ▲ Buy | Grant | 4,239 | $0 | 12/12/2023 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $161K | 11/15/2023 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $149K | 10/16/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 460 | $22K | 9/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 138 | $7K | 9/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 298 | $14K | 9/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 344 | $16K | 9/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 418 | $20K | 9/20/2023 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $171K | 9/15/2023 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $146K | 8/15/2023 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $148K | 7/14/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 418 | $18K | 6/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 344 | $15K | 6/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 460 | $20K | 6/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 138 | $6K | 6/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 298 | $13K | 6/20/2023 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $154K | 6/15/2023 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $152K | 5/15/2023 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $178K | 4/17/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 138 | $7K | 3/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 341 | $17K | 3/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 298 | $15K | 3/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 460 | $23K | 3/20/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 456 | $23K | 3/20/2023 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $174K | 3/15/2023 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $170K | 2/15/2023 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $178K | 1/17/2023 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 2,390 | $118K | 12/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 535 | $26K | 12/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 606 | $30K | 12/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 432 | $21K | 12/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 2,069 | $102K | 12/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 2,672 | $132K | 12/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 498 | $25K | 12/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 1,542 | $76K | 12/20/2022 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $175K | 12/15/2022 | View on chart |
| CIEN | ▲ Buy | Grant | 8,566 | $0 | 12/13/2022 | View on chart |
| CIEN | ▲ Buy | Option Exercise | 5,532 | — | 12/13/2022 | View on chart |
| CIEN | ▲ Buy | Grant | 22,080 | $0 | 12/13/2022 | View on chart |
| CIEN | ▲ Buy | Grant | 6,624 | $0 | 12/13/2022 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $158K | 11/15/2022 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $141K | 10/17/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 298 | $12K | 9/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 418 | $17K | 9/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 453 | $18K | 9/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 344 | $14K | 9/20/2022 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $148K | 9/15/2022 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $190K | 8/15/2022 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $165K | 7/15/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 344 | $15K | 6/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 453 | $20K | 6/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 418 | $18K | 6/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 298 | $13K | 6/20/2022 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $153K | 6/15/2022 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $182K | 5/16/2022 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $201K | 4/14/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 344 | $21K | 3/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 298 | $18K | 3/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 453 | $27K | 3/20/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 417 | $25K | 3/20/2022 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $189K | 3/15/2022 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $225K | 2/15/2022 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,500 | $247K | 1/18/2022 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 886 | $66K | 12/20/2021 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 1,772 | $132K | 12/20/2021 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 498 | $37K | 12/20/2021 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 867 | $65K | 12/20/2021 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 8,398 | $625K | 12/20/2021 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 657 | $49K | 12/20/2021 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 606 | $45K | 12/20/2021 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 2,390 | $178K | 12/20/2021 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 1,542 | $115K | 12/20/2021 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $185K | 12/15/2021 | View on chart |
| CIEN | ▲ Buy | Grant | 14,279 | $0 | 12/14/2021 | View on chart |
| CIEN | ▲ Buy | Grant | 16,279 | $0 | 12/14/2021 | View on chart |
| CIEN | ▲ Buy | Option Exercise | 17,386 | — | 12/14/2021 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $154K | 11/15/2021 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,000 | $160K | 10/15/2021 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 476 | $25K | 9/20/2021 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 498 | $26K | 9/20/2021 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 598 | $31K | 9/20/2021 | View on chart |
| CIEN | ▼ Sell | Tax Withholding | 453 | $23K | 9/20/2021 | View on chart |
| CIEN | ▼ Sell | Open Market | 2,500 | $133K | 9/15/2021 | View on chart |
| CIEN | ▼ Sell | Open Market | 3,000 | $167K | 8/16/2021 | View on chart |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 17, 2026
Ciena Valuation in Focus as AI Growth is Largely Priced In
Recent analyses suggest that Ciena's successful diversification into artificial intelligence has been largely priced into the stock, which trades at a high multiple despite its cyclical nature. Meanwhile, sector peers like Ericsson and Taiwan Semiconductor report strong quarterly results, reflecting robust demand in telecommunications infrastructure. This environment keeps the focus on whether Ciena's premium valuation aligns with its growth trajectory.
Ciena Valuation in Focus as AI Growth is Largely Priced In. Recent analyses suggest that Ciena's successful diversification into artificial intelligence has been largely priced into the stock, which trades at a high multiple despite its cyclical nature. Meanwhile, sector peers like Ericsson and Taiwan Semiconductor report strong quarterly results, reflecting robust demand in telecommunications infrastructure. This environment keeps the focus on whether Ciena's premium valuation aligns with its growth trajectory.