Atreides Management, LP
- SEC CIK
- 0001777813
- Latest filing
- Aug 14, 2026
CIEN holding history
Ciena Corp in every 13F filed by Atreides Management, LP, 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 Q2 2026 holdings
- Shares (Q2 2026)
- 688,521
- Value
- $337.8M
- % of portfolio
- 3.0%
- Quarters held
- 11
- Since Q3 2023
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 688,521 | $337.8M | 3.0% | +11,714+1.7% | Added | Holders |
| Q1 2026 | 676,807 | $262.8M | 6.4% | −751,423−52.6% | Reduced | Holders |
| Q4 2025 | 1,428,230 | $334.0M | 7.1% | +27,466+2.0% | Added | Holders |
| Q3 2025 | 1,400,764 | $204.0M | 5.3% | +137,946+10.9% | Added | Holders |
| Q2 2025 | 1,262,818 | $102.7M | 2.9% | +1,262,818 | New | Holders |
| Q1 2025 | 0 | $0 | 0.0% | −74,952−100.0% | Sold out | Holders |
| Q4 2024 | 74,952 | $6.36M | 0.2% | −2,144,259−96.6% | Reduced | Holders |
| Q3 2024 | 2,219,211 | $136.7M | 4.6% | −1,373,107−38.2% | Reduced | Holders |
| Q2 2024 | 3,592,318 | $173.1M | 5.7% | +401,565+12.6% | Added | Holders |
| Q1 2024 | 3,190,753 | $157.8M | 4.7% | +640,373+25.1% | Added | Holders |
| Q4 2023 | 2,550,380 | $114.8M | 4.1% | +902,415+54.8% | Added | Holders |
| Q3 2023 | 1,647,965 | $77.9M | 2.7% | +1,647,965 | New | Holders |