Position history for BlackRock, Inc.'s holdings in CIENA CORP
BlackRock, Inc. holds 13.4M shares of CIEN (CIENA CORP), worth $5.2B as of 2026-Q1. The position was decreased (-19.8% shares). CIEN represents 0.1% of BlackRock, Inc.'s portfolio.
Current Value
$5.2B
Current Shares
13.4M
Total Value Change
+$3.7B
Total Shares Change
-3.7M
Other major holders of CIEN: FMR LLC, JPMORGAN CHASE & CO, VANGUARD GROUP INC
Decreased |
| 13.4M |
-19.8% |
| $5.2B |
| 0.1% |
| $333.07 |
0 |
| 2025-Q4 | Increased | 16.7M | +6.9% | $3.9B | 0.1% | $238.36 | 34 |
| 2025-Q3 | Decreased | 15.6M | -8.6% | $2.3B | 0.0% | $144.12 | 0 |
| 2025-Q2 | Increased | 17.1M | +0.2% | $1.4B | 0.0% | $82.12 | 32 |
| 2025-Q1 | Decreased | 17M | -0.4% | $1B | 0.0% | $61.56 | 0 |
| 2024-Q4 | New | 17.1M | - | $1.5B | 0.0% | $85.01 | 44 |