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SIT INVESTMENT ASSOCIATES INC

Position in CIEN — Ciena Corp

CIK 769317 Minneapolis, MN

Position in CIEN

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$20,983,704
+$4,377,166 QoQ
Shares Held
42,775
0.0% QoQ
Ownership
0.030%
of shares outstanding
% of Portfolio
0.40%
of 13F equity value
Holder Rank
#196
of 1,218 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CIEN Over Time

Shares Held

Position Value (USD)

Position in Communication Equipment

Technology · as of Jun 30, 2026

SIT INVESTMENT ASSOCIATES INC holds $37,699,841 across 4 Communication Equipment names. CIEN ranks #1 (55.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 CIEN
Ciena Corp
This page
42,775 $20,983,704

All Filings in CIEN

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $20,983,704 42,775
2026-03-31 $16,606,538 42,775
2025-12-31 $10,939,269 46,775
2025-09-30 $6,813,714 46,775
2025-06-30 $3,804,210 46,775
2025-03-31 $2,912,726 48,200
2024-12-31 $4,087,842 48,200
2024-09-30 $2,968,638 48,200
2024-06-30 $2,322,276 48,200
2024-03-31 $2,383,490 48,200
2023-12-31 $2,169,482 48,200
2023-09-30 $2,277,932 48,200
2023-06-30 $2,227,325 52,420
2023-03-31 $2,753,098 52,420
2022-12-31 $2,644,332 51,870
2022-09-30 $2,130,054 52,685
2022-06-30 $2,407,704 52,685
2022-03-31 $3,157,913 52,085
2021-12-31 $3,758,060 48,825
2021-09-30 $2,507,163 48,825
2021-06-30 $2,777,654 48,825
2021-03-31 $5,369,400 98,125
2020-12-31 $5,188,548 98,175
2020-09-30 $6,725,073 169,440
2020-06-30 $8,910,132 164,515
2020-03-31 $6,461,760 162,315