13FAI ai-powered hedge fund tracker

CIENA CORP (CIEN) — Hedge Fund Ownership Q1 2026

CIEN
Q1 2026Q4 2025Q3 2025Q2 2025
  • CIENA CORP (CIEN) is held by 3 of 82 tracked hedge funds, with Lone Pine Capital (3%) and Mairs & Power (0%) holding the largest stakes, indicating limited hedge fund interest relative to peers.
  • New position in CIEN stock was initiated by Lone Pine Capital (3%).
  • The biggest decreases in CIEN holdings came from First Eagle Investment Management (-94%) and Mairs & Power (-7%), suggesting profit-taking or de-risking.
  • Overall, hedge funds decreased exposure to CIENA CORP (CIEN) by -88% vs the prior quarter.
# Fund % of Portfolio † Shares † Shares vs Prior Quarter † Shares vs Prior Year † Aggregate Value † Reported Price * Option
1
Lone Pine Capital
Stephen Mandel
2.51% 810K NEW $314.3M $388.23
2
Mairs & Power
0.01% 3K -6.67% $1.1M $388.23
3
First Eagle Investment Management
0.00% 3K -93.64% $1.0M $388.23
3 Total 815K -87.70% $316.4M
* Reported price is not an actual purchase or sale price. It is the price as of the last portfolio date.
† Portfolio value, share counts, and period-over-period changes exclude options positions (PUT/CALL), which are shown in the Option column for reference only.