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JOHN G ULLMAN & ASSOCIATES INC

Position in CIEN — Ciena Corp

CIK 919530 CORNING, NY

Position in CIEN

as of Jun 30, 2026 · filed Aug 11, 2026
Position Value
$5,751,816
+$937,764 QoQ
Shares Held
11,725
-5.4% QoQ
Ownership
0.008%
of shares outstanding
% of Portfolio
1.03%
of 13F equity value
Holder Rank
#366
of 1,218 holders
Holding Since
Dec 2020
23 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in CIEN Over Time

Shares Held

Position Value (USD)

Position in Communication Equipment

Technology · as of Jun 30, 2026

JOHN G ULLMAN & ASSOCIATES INC holds $7,410,445 across 2 Communication Equipment names. CIEN ranks #1 (77.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 CIEN
Ciena Corp
This page
11,725 $5,751,816

All Filings in CIEN

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23 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $5,751,816 11,725
2026-03-31 $4,814,052 12,400
2025-12-31 $3,858,855 16,500
2025-09-30 $2,432,689 16,700
2025-06-30 $1,358,211 16,700
2025-03-31 $1,009,181 16,700
2024-12-31 $1,450,251 17,100
2024-09-30 $1,053,189 17,100
2024-06-30 $843,150 17,500
2024-03-31 $815,925 16,500
2023-12-31 $657,146 14,600
2023-09-30 $680,544 14,400
2023-06-30 $624,603 14,700
2023-03-31 $577,720 11,000
2022-12-31 $560,780 11,000
2022-09-30 $258,752 6,400
2022-06-30 $292,480 6,400
2022-03-31 $333,465 5,500
2021-12-31 $423,335 5,500
2021-09-30 $277,290 5,400
2021-06-30 $318,584 5,600
2021-03-31 $306,432 5,600
2020-12-31 $295,960 5,600