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 19 sales; 1,227 institutions reported holding it in 13F filings for Q2 2026, worth $64.6B in total; no superinvestor holds it.
Superinvestors holding CIEN, Q2 2026
No superinvestor reported holding CIEN in Q2 2026.
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of CIEN each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
0 superinvestors holding at quarter end
- Sold out
- Lone Pine Capital
Q1 2026
1 superinvestor holding at quarter end
Q4 2025
0 superinvestors holding at quarter end
- Sold out
- Lone Pine Capital
Q3 2025
1 superinvestor holding at quarter end
- New
- Lone Pine Capital
- Sold out
- Maverick Capital
Q1 2025
1 superinvestor holding at quarter end
- Added
- Maverick Capital (+98.0%)
Q4 2024
1 superinvestor holding at quarter end
- Reduced
- Maverick Capital (−84.9%)
Q3 2024
1 superinvestor holding at quarter end
- Reduced
- Maverick Capital (−1.8%)
Q2 2024
1 superinvestor holding at quarter end
- New
- Maverick Capital
- Sold out
- Giverny Capital
Q1 2024
1 superinvestor holding at quarter end
- Reduced
- Giverny Capital (−99.9%)
Q4 2023
1 superinvestor holding at quarter end
- Reduced
- Giverny Capital (−1.5%)
Q3 2023
1 superinvestor holding at quarter end
- Reduced
- Giverny Capital (−9.7%)
Q2 2023
1 superinvestor holding at quarter end
- Added
- Giverny Capital (+5.5%)
Q1 2023
1 superinvestor holding at quarter end
- Reduced
- Giverny Capital (−2.1%)
Q4 2022
1 superinvestor holding at quarter end
- Reduced
- Giverny Capital (−0.2%)
Q3 2022
1 superinvestor holding at quarter end
- Added
- Giverny Capital (+1.2%)
Q2 2022
1 superinvestor holding at quarter end
- Added
- Giverny Capital (+4.4%)
- Sold out
- Maverick Capital
Q1 2022
2 superinvestors holding at quarter end
- Added
- Giverny Capital (+94.0%), Maverick Capital (+1,073.5%)
Q4 2021
2 superinvestors holding at quarter end
- New
- Giverny Capital
- Reduced
- Maverick Capital (−97.2%)
Q3 2021
1 superinvestor holding at quarter end
- Added
- Maverick Capital (+122.7%)
Q2 2021
1 superinvestor holding at quarter end
- Reduced
- Maverick Capital (−6.5%)