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ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Position in CIEN — Ciena Corp

CIK 1164508 BOSTON, MA

Position in CIEN

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$539,048,425
+$15,919,824 QoQ
Shares Held
1,388,477
-37.9% QoQ
Ownership
0.981%
of shares outstanding
% of Portfolio
0.30%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
17 quarters on record
Voting authority Sole 92.82696076348402.ToString("F0")% Shared 0.ToString("F0")% None 7.173039236515981.ToString("F0")%

Common Shares in CIEN Over Time

Shares Held

Position Value (USD)

Position in Communication Equipment

Technology · as of Mar 31, 2026

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $3,339,286,436 across 23 Communication Equipment names. CIEN ranks #2 (16.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 CIEN
Ciena Corp
This page
1,388,477 $539,048,425

All Filings in CIEN

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17 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $539,048,425 1,388,477
2025-12-31 $523,128,601 2,236,835
2025-09-30 $166,625,357 1,143,855
2025-06-30 $4,090,736 50,298
2025-03-31 $12,168,607 201,367
2024-12-31 $44,911,559 529,555
2024-09-30 $711,487 11,552
2024-06-30 $5,367,926 111,414
2024-03-31 $978,813 19,794
2023-12-31 $715,433 15,895
2022-12-31 $540,337 10,599
2021-12-31 $665,790 8,650
2021-03-31 $1,649,753 30,149
2020-12-31 $59,094,438 1,118,154
2020-09-30 $22,041,523 555,342
2020-06-30 $26,035,741 480,719
2020-03-31 $1,238,091 31,100