Weiss Asset Management LP

Position in CIEN — Ciena Corp

CIK 1357550 BOSTON, MA

Position in CIEN

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$1,217,079

-$2,931,774 QoQ

Shares Held

2,481

-86.0% QoQ

Ownership

0.002%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#595

of 1,218 holders

Holding Since

Mar 2024

7 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

Weiss Asset Management LP holds $51,873,584 across 4 Communication Equipment names. CIEN ranks #4 (2.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VIAV	Viavi Solutions Inc.	501,507	$23,946,959
2	AAOI	Applied Optoelectronics, Inc.	151,868	$22,500,762
3	LITE	Lumentum Holdings Inc.	4,905	$4,208,784
4	CIEN	Ciena Corp This page	2,481	$1,217,079

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,217,079	2,481	-86.0%	Shares	Defined	2026-08-14
2025-12-31	$4,148,853	17,740	-27.3%	Shares	Defined	2026-02-17
2025-09-30	$3,554,785	24,403	-38.6%	Shares	Defined	2025-11-14
2025-06-30	$3,233,599	39,759	+4.9%	Shares	Defined	2025-08-14
2025-03-31	$2,289,692	37,890	-12.2%	Shares	Defined	2025-05-15
2024-06-30	$2,079,304	43,157	-81.7%	Shares	Defined	2024-08-14
2024-03-31	$11,692,848	236,458	—	Shares	Defined	2024-05-13
No filing history on record for this holder in this stock.