Stephen Mandel - Lone Pine Capital
Period: Q1 2026
Portfolio date: 31 Mar 2026
No. of stocks: 36
Portfolio value: $12,543,849,391
Holding/activity history for Ciena Corp. (CIEN)
| Period |
Shares |
% of Portfolio |
Activity |
% Change to Portfolio |
Reported Price |
Value |
Filing |
| 2026 Q1 |
809,522 |
2.51 |
Buy
|
2.51 |
$388.23 |
$314,280,726 |
SEC |
| 2025 Q4 |
0 |
0.00 |
Sell 100.00%
|
2.13 |
|
|
SEC |
| 2025 Q3 |
2,006,662 |
2.13 |
Buy
|
2.13 |
$145.67 |
$292,310,454 |
SEC |