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CIENCIEN
Showing 6 of 9 quarters

Position history for WILLIAM BLAIR INVESTMENT MANAGEMENT, LLCWILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's holdings in CIENA CORP

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC holds 133,801 shares of CIEN (CIENA CORP), worth $65.6M as of 2026-Q2. The position was decreased (-66.4% shares). CIEN represents 0.2% of WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's portfolio.

Current Value

$65.6M

Current Shares

133,801

Total Value Change

-$55.6M

Total Shares Change

-1.9M

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Decreased
133,801
-66.4%
$65.6M0.2%$490.56
0
2026-Q1
Decreased
398,579
-63.7%
$154.7M0.5%$388.23
0
2025-Q4
Decreased
1.1M
-55.0%
$256.9M0.7%$233.87
0
2025-Q3
Decreased
2.4M
-9.9%
$355.6M0.9%$145.67
0
2025-Q2
Increased
2.7M
+35.0%
$220.3M0.6%$81.33
56
2025-Q1
New
2M
-
$121.2M0.3%$60.43
50

Other major holders of CIEN: BNP PARIBAS FINANCIAL MARKETS, FMR LLC, BlackRock, Inc., JPMORGAN CHASE & CO

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