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BlackRock, Inc.
BlackRock, Inc.
CIEN7 quarters
Position history for BlackRock, Inc.'s holdings in CIENA CORP
BlackRock, Inc. holds 12.7M shares of CIEN (CIENA CORP), worth $6.2B as of 2026-Q2. The position was decreased (-4.9% shares). CIEN represents 0.1% of BlackRock, Inc.'s portfolio.
Current Value
$6.2B
Current Shares
12.7M
Total Value Change
+$4.8B
Total Shares Change
-4.4M
Quarter-by-Quarter History
Other major holders of CIEN: BNP PARIBAS FINANCIAL MARKETS, FMR LLC, JPMORGAN CHASE & CO