Ion Asset Management Ltd.
- SEC CIK
- 0001603837
- Latest filing
- Nov 14, 2025
CIEN holding history
Ciena Corp in every 13F filed by Ion Asset Management Ltd., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
CIEN overviewAll 13F holders of CIENFull Q3 2025 holdings
- Shares (Q3 2025)
- 211,924
- Value
- $30.9M
- % of portfolio
- 3.8%
- Quarters held
- 19
- Since Q1 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q3 2025 | 211,924 | $30.9M | 3.8% | −999,340−82.5% | Reduced | Holders |
| Q2 2025 | 1,211,264 | $98.5M | 6.0% | −145,488−10.7% | Reduced | Holders |
| Q1 2025 | 1,356,752 | $82.0M | 6.0% | +80,426+6.3% | Added | Holders |
| Q4 2024 | 1,276,326 | $108.2M | 6.5% | −130,953−9.3% | Reduced | Holders |
| Q3 2024 | 1,407,279 | $86.7M | 5.6% | −150,200−9.6% | Reduced | Holders |
| Q2 2024 | 1,557,479 | $75.0M | 5.0% | −316,300−16.9% | Reduced | Holders |
| Q1 2024 | 1,873,779 | $92.7M | 6.8% | −289,801−13.4% | Reduced | Holders |
| Q4 2023 | 2,163,580 | $97.4M | 8.2% | +195,580+9.9% | Added | Holders |
| Q3 2023 | 1,968,000 | $93.0M | 9.7% | −139,749−6.6% | Reduced | Holders |
| Q2 2023 | 2,107,749 | $89.6M | 10.5% | +307,749+17.1% | Added | Holders |
| Q1 2023 | 1,800,000 | $94.5M | 9.9% | −503,408−21.9% | Reduced | Holders |
| Q4 2022 | 2,303,408 | $117.4M | 15.9% | −482,662−17.3% | Reduced | Holders |
| Q3 2022 | 2,786,070 | $112.6M | 17.7% | −169,117−5.7% | Reduced | Holders |
| Q2 2022 | 2,955,187 | $37.5M | 5.6% | −16,428−0.6% | Reduced | Holders |
| Q1 2022 | 2,971,615 | $59.2M | 7.6% | +2,295,500+339.5% | Added | Holders |
| Q4 2021 | 676,115 | $52.0M | 6.6% | −1,404,694−67.5% | Reduced | Holders |
| Q3 2021 | 2,080,809 | $77.8M | 10.6% | +78,989+3.9% | Added | Holders |
| Q2 2021 | 2,001,820 | $113.9M | 14.0% | +379,394+23.4% | Added | Holders |
| Q1 2021 | 1,622,426 | $88.8M | 10.2% | – | – | Holders |
Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.