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STATE OF WISCONSIN INVESTMENT BOARD

Position in CIEN — Ciena Corp

CIK 854157 MADISON, WI

Position in CIEN

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$37,396,642
+$16,340,391 QoQ
Shares Held
96,326
+7.0% QoQ
Ownership
0.068%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in CIEN Over Time

Shares Held

Position Value (USD)

Position in Communication Equipment

Technology · as of Mar 31, 2026

STATE OF WISCONSIN INVESTMENT BOARD holds $361,847,029 across 19 Communication Equipment names. CIEN ranks #3 (10.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 CIEN
Ciena Corp
This page
96,326 $37,396,642

All Filings in CIEN

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $37,396,642 96,326
2025-12-31 $21,056,251 90,034
2025-09-30 $13,897,063 95,401
2025-06-30 $10,113,466 124,351
2025-03-31 $8,326,468 137,787
2024-12-31 $10,882,479 128,316
2024-09-30 $8,526,273 138,436
2024-06-30 $7,047,625 146,277
2024-03-31 $6,644,200 134,362
2023-12-31 $6,648,562 147,713
2023-09-30 $6,664,416 141,016
2023-06-30 $6,335,174 149,098
2023-03-31 $8,054,729 153,365
2022-12-31 $8,537,263 167,463
2022-09-30 $7,155,988 176,997
2022-06-30 $8,540,598 186,884
2022-03-31 $9,690,735 159,834
2021-12-31 $1,443,495 18,754
2021-09-30 $992,287 19,324
2021-06-30 $1,047,743 18,417
2021-03-31 $1,060,856 19,387
2020-12-31 $3,694,796 69,911
2020-09-30 $6,439,345 162,241
2020-06-30 $10,666,866 196,951
2020-03-31 $10,315,208 259,111