Ciena Corp
CIEN- Exchange
- NYSE
- Industry
- Telephone & Telegraph Apparatus
- SEC CIK
- 0000936395
In the last 90 days, Ciena Corp insiders filed 0 open-market purchases and 20 sales; 1,227 institutions reported holding it in 13F filings for Q2 2026, worth $64.6B in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Ciena Corp as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 689
- +134 vs. Q2 2025
- Shares held
- 139.2M
- −1.59M (−1.1%) vs. Q2 2025
- Total value
- $20.3B
- +$8.83B (+77.1%) vs. Q2 2025
- New holders
- 181
- 175 more added
- Sold out
- 47
- 261 more reduced
8 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CIEN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,227 | $64.6B |
| Q1 2026 | 1,085 | $51.8B |
| Q4 2025 | 854 | $32.2B |
| Q3 2025 | 689 | $20.3B |
| Q2 2025 | 563 | $11.5B |
| Q1 2025 | 544 | $8.24B |
| Q4 2024 | 534 | $11.9B |
| Q3 2024 | 464 | $8.76B |
| Q2 2024 | 454 | $6.74B |
| Q1 2024 | 468 | $6.78B |
| Q4 2023 | 451 | $6.04B |
| Q3 2023 | 469 | $6.37B |
| Q2 2023 | 470 | $5.84B |
| Q1 2023 | 486 | $7.28B |
| Q4 2022 | 463 | $7.11B |
| Q3 2022 | 424 | $5.84B |
| Q2 2022 | 458 | $6.18B |
| Q1 2022 | 498 | $8.15B |
| Q4 2021 | 523 | $10.5B |
| Q3 2021 | 460 | $7.06B |
| Q2 2021 | 467 | $8.09B |
| Q1 2021 | 461 | $7.83B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Ciena Corp; share changes are against Q2 2025.