Position in CIEN
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$7,491,832
+$322,777 QoQ
Shares Held
15,272
-17.3% QoQ
Ownership
0.011%
of shares outstanding
% of Portfolio
0.28%
of 13F equity value
Holder Rank
#325
of 1,225 holders
Holding Since
Sep 2025
4 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, 2026Portolan Capital Management, LLC holds $75,140,935 across 8 Communication Equipment names. CIEN ranks #6 (10.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | NOK |
Nokia Corp
|
1,645,761 | $21,855,706 | |
| 2 | DGII |
Digi International Inc
|
141,243 | $10,586,162 | |
| 3 | VIAV |
Viavi Solutions Inc.
|
220,118 | $10,510,634 | |
| 4 | FEIM |
Frequency Electronics Inc
|
152,818 | $10,139,474 | |
| 5 | SILC |
Silicom Ltd.
|
162,466 | $7,788,620 | |
| 6 | CIEN |
Ciena Corp
This page
|
15,272 | $7,491,832 | |
| 7 | LITE |
Lumentum Holdings Inc.
|
5,822 | $4,995,625 | |
| 8 | AAOI |
Applied Optoelectronics, Inc.
|
11,966 | $1,772,882 |
All Filings in CIEN
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4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $7,491,832 | 15,272 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $7,169,055 | 18,466 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $13,209,211 | 56,481 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $12,933,456 | 88,786 | Shares | Sole | 2025-11-13 | |
| No filing history on record for this holder in this stock. | ||||||