FRONTIER CAPITAL MANAGEMENT CO LLC

Position in AAOI — Applied Optoelectronics, Inc.

CIK 351173 Boston, MA

Position in AAOI

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

Position Value

$144,503,114

+$120,467,204 QoQ

Shares Held

975,318

+243.2% QoQ

Ownership

1.15%

of shares outstanding

% of Portfolio

1.35%

of 13F equity value

Holder Rank

#16

of 480 holders

Holding Since

Mar 2026

2 quarters on record

Voting authority Sole 42% Shared 0% None 58%

Technology · as of Jun 30, 2026

FRONTIER CAPITAL MANAGEMENT CO LLC holds $204,809,037 across 4 Communication Equipment names. AAOI ranks #1 (70.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AAOI	Applied Optoelectronics, Inc. This page	975,318	$144,503,114
2	BDC	Belden Inc.	240,496	$28,837,875
3	LITE	Lumentum Holdings Inc.	21,893	$18,785,507
4	MSI	Motorola Solutions, Inc.	30,539	$12,682,541

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$144,503,114	975,318	+243.2%	Shares	Sole	2026-08-14
2026-03-31	$24,035,910	284,146	—	Shares	Sole	2026-05-15
No filing history on record for this holder in this stock.