Position in CIEN
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$7,169,055
-$6,040,156 QoQ
Shares Held
18,466
-67.3% QoQ
Ownership
0.013%
of shares outstanding
% of Portfolio
0.39%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2025
3 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, 2026Portolan Capital Management, LLC holds $52,736,881 across 7 Communication Equipment names. CIEN ranks #3 (13.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | NOK |
Nokia Corp
|
2,393,970 | $19,247,518 | |
| 2 | DGII |
Digi International Inc
|
170,256 | $8,206,339 | |
| 3 | CIEN |
Ciena Corp
This page
|
18,466 | $7,169,055 | |
| 4 | FEIM |
Frequency Electronics Inc
|
150,141 | $6,645,240 | |
| 5 | VIAV |
Viavi Solutions Inc.
|
145,844 | $4,853,688 | |
| 6 | LITE |
Lumentum Holdings Inc.
|
5,822 | $4,091,468 | |
| 7 | AAOI |
Applied Optoelectronics, Inc.
|
29,833 | $2,523,573 |
All Filings in CIEN
Export CSV
3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 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. | ||||||