Horizon Investment Services, LLC

Position in ATEN — A10 Networks, Inc.

CIK 1426940 HAMMOND, IN

Position in ATEN

as of Jun 30, 2026 · filed Aug 6, 2026 Compact

Position Value

$638,930

+$384,756 QoQ

Shares Held

17,102

-35.3% QoQ

Ownership

0.024%

of shares outstanding

% of Portfolio

0.22%

of 13F equity value

Holder Rank

#168

of 312 holders

Holding Since

Mar 2021

2 quarters on record

Voting authority Sole 94% Shared 0% None 6%

Technology · as of Jun 30, 2026

Horizon Investment Services, LLC holds $9,894,207 across 5 Software - Infrastructure names. ATEN ranks #3 (6.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MSFT	Microsoft Corp	20,304	$7,573,798
2	RELY	Remitly Global, Inc.	45,403	$1,017,481
3	ATEN	A10 Networks, Inc. This page	17,102	$638,930
4	FLYW	Flywire Corp	23,925	$420,362
5	GCT	GigaCloud Technology Inc	7,710	$243,636

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$638,930	17,102	-35.3%	Shares	Sole	2026-08-06
2021-03-31	$254,174	26,449	—	Shares	Sole	2021-05-14
No filing history on record for this holder in this stock.