GUYASUTA INVESTMENT ADVISORS INC

Position in CIEN — Ciena Corp

CIK 928568 PITTSBURGH, PA

Position in CIEN

as of Jun 30, 2026 · filed Jul 20, 2026 Compact

Position Value

$1,209,230

-$77,752 QoQ

Shares Held

2,465

-25.6% QoQ

Ownership

0.002%

of shares outstanding

% of Portfolio

0.07%

of 13F equity value

Holder Rank

#600

of 1,218 holders

Holding Since

Mar 2020

18 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

GUYASUTA INVESTMENT ADVISORS INC holds $2,689,419 across 3 Communication Equipment names. CIEN ranks #1 (45.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CIEN	Ciena Corp This page	2,465	$1,209,230
2	CSCO	Cisco Systems, Inc.	8,960	$1,052,441
3	MSI	Motorola Solutions, Inc.	1,030	$427,748

18 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,209,230	2,465	-25.6%	Shares	Sole	2026-07-20
2026-03-31	$1,286,982	3,315	0.0%	Shares	Sole	2026-04-17
2025-12-31	$775,279	3,315	0.0%	Shares	Sole	2026-01-23
2025-09-30	$482,896	3,315	0.0%	Shares	Sole	2025-10-21
2025-06-30	$269,608	3,315	0.0%	Shares	Sole	2025-07-17
2025-03-31	$200,325	3,315	0.0%	Shares	Sole	2025-04-22
2024-12-31	$281,145	3,315	0.0%	Shares	Sole	2025-01-30
2024-09-30	$204,170	3,315	-87.1%	Shares	Sole	2024-11-13
2022-06-30	$1,178,465	25,787	+0.6%	Shares	Sole	2022-07-21
2022-03-31	$1,553,946	25,630	0.0%	Shares	Sole	2022-05-03
2021-12-31	$1,972,741	25,630	0.0%	Shares	Sole	2022-02-08
2021-09-30	$1,316,100	25,630	+3.9%	Shares	Sole	2021-11-09
2021-06-30	$1,402,907	24,660	0.0%	Shares	Sole	2021-08-12
2021-03-31	$1,349,395	24,660	0.0%	Shares	Sole	2021-05-11
2020-12-31	$1,303,281	24,660	+0.5%	Shares	Sole	2021-02-08
2020-09-30	$973,595	24,530	+14.9%	Shares	Sole	2020-10-28
2020-06-30	$1,156,045	21,345	0.0%	Shares	Sole	2020-08-06
2020-03-31	$849,744	21,345	—	Shares	Sole	2020-04-28
No filing history on record for this holder in this stock.