A10 Networks

ATEN • NYSE

A10 Networks is a software - infrastructure company in the technology sector on NYSE, led by Dhrupad Trivedi, with a market cap of $1.3B. As of Q3 2025, 97% of shares are held by 232 institutional investors, with BlackRock, Inc. as the largest holder at 18.1%.

Chief Executive OfficerDhrupad Trivedi

Market Cap$1.3B

Software - Infrastructure

Technology

Employees525.0

Websitea10networks.com

Country

United States of America

Overview

Overview of institutional ownership in ATEN as of Q3 2025 with a market cap of $1.3B

All Institutions

Institutions: 232
Value Held: $1.3B
Shares Held: 70.1M
Avg Position: $5.5M
Median Position: $731.6K

Hedge Funds

Hedge Funds: 24
Value Held: $114.6M
Shares Held: 6.3M
Avg Position: $4.8M
Median Position: $749.6K

Ownership Breakdown

Institutional (non-HF)

88.44%

$1.2B

Hedge Funds

8.75%

$114.6M

Retail & Other

2.81%

$36.7M

Based on market cap of $1.3B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in ATEN as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$237.0M 0.00% of portfolio	18.10% 13.1M shares	Q3 2015 Held for 10y 2m	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$131.3M 0.00% of portfolio	10.03% 7.2M shares	Q2 2014 Held for 11y 5m	$6.69T
Penserra Capital Management LLC ETF Provider	George Nmn Madrigal CEO	$66.4M 0.90% of portfolio	5.07% 3.7M shares	Q4 2024 Held for 11 months	$7.4B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$59.7M 0.00% of portfolio	4.56% 3.3M shares	Q2 2014 Held for 11y 5m	$2.88T
M MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Institution	-	$49.0M 0.08% of portfolio	3.74% 2.7M shares	Q2 2024 Held for 1y 5m	$61.8B
B BTIM Corp. Institution	-	$47.9M 0.35% of portfolio	3.66% 2.6M shares	Q1 2025 Held for 8 months	$13.6B
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	Peter Fitzhugh Brown CEO	$43.3M 0.06% of portfolio	3.31% 2.4M shares	Q4 2014 Held for 10y 11m	$75.8B
WELLINGTON MANAGEMENT CO LLP Long Only Manager	Jean Marie Hynes CEO	$37.3M 0.01% of portfolio	2.85% 2.1M shares	Q4 2024 Held for 11 months	$571.21B
FIRST TRUST ADVISORS LP ETF Provider	James Allen Bowen CEO	$36.9M 0.03% of portfolio	2.82% 2.0M shares	Q1 2019 Held for 6y 8m	$134.11B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$32.1M 0.00% of portfolio	2.45% 1.8M shares	Q2 2014 Held for 11y 5m	$1.57T

Net Capital Flow

Institutional buying and selling activity for ATEN in Q3 2025

Traded: −$3.0M
Buyers: 129
Sellers: 110
Total Bought: +$104.0M
Total Sold: −$106.9M
Avg Position: $4.9M

Biggest Buyers

Institution	Net Bought	Current Position
BARCLAYS PLC Institution	+$12.6M +695.2K shares	$24.8M 1.4M shares
WELLINGTON MANAGEMENT CO LLP Long Only Manager	+$10.7M +588.9K shares	$37.3M 2.1M shares
B BTIM Corp. Institution	+$8.7M +477.2K shares	$47.9M 2.6M shares
CRAWFORD INVESTMENT COUNSEL INC Long Only Manager	+$5.2M +286.8K shares	$5.2M 286.8K shares
Q Qube Research & Technologies Ltd Institution	+$4.2M +228.8K shares	$10.2M 563.5K shares
UBS Group AG Institution	+$3.9M +215.9K shares	$11.0M 606.2K shares
H HUSSMAN STRATEGIC ADVISORS, INC. Institution	+$3.8M +210.0K shares	$3.8M 210.0K shares
A Assenagon Asset Management S.A. Institution	+$3.6M +200.5K shares	$3.6M 200.5K shares
H HRT FINANCIAL LLC Institution	+$2.8M +157.0K shares	$2.8M 157.0K shares
October Effect Ltd RIA/Wealth	+$2.8M +153.5K shares	$2.8M 153.5K shares

Biggest Sellers

Institution	Net Sold	Current Position
L LEGAL & GENERAL GROUP PLC Institution	−$14.1M −778.2K shares	$3.9M 214.5K shares
HARBOR CAPITAL ADVISORS, INC. ETF Provider	−$10.7M −590.5K shares	$4.3M 238.1K shares
Marshall Wace LLP Institution	−$8.0M −442.6K shares	$3.2M 175.1K shares
JACOBS LEVY EQUITY MANAGEMENT, INC Hedge Fund•Quant	−$7.4M −407.8K shares	$1.3M 70.7K shares
ALGERT COLDIRON INVESTORS LLC Hedge Fund•Quant	−$6.3M −323.6K shares	Sold Off 0 shares
Penserra Capital Management LLC ETF Provider	−$5.6M −306.5K shares	$66.4M 3.7M shares
MORGAN STANLEY RIA/Wealth	−$5.3M −291.9K shares	$13.7M 755.5K shares
B BlackRock, Inc. Institution	−$3.1M −171.6K shares	$237.0M 13.1M shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	−$3.0M −163.2K shares	$2.5M 136.3K shares
Vident Advisory, LLC ETF Provider	−$2.5M −130.4K shares	Sold Off 0 shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited ATEN in Q3 2025

New Positions: 15
New Value: $14.7M
Exited Positions: 29
Exited Value: $20.2M

New Positions

Institution	Position Value
CRAWFORD INVESTMENT COUNSEL INC Long Only Manager	$5.2M 286.8K shares
H HUSSMAN STRATEGIC ADVISORS, INC. Institution	$3.8M 210.0K shares
October Effect Ltd RIA/Wealth	$2.8M 153.5K shares
Q QSV Equity Investors LLC Institution	$1.2M 65.5K shares
Nilsine Partners, LLC RIA/Wealth	$917.9K 50.6K shares
Round Rock Advisors, LLC RIA/Wealth	$319.3K 17.7K shares
FourThought Financial Partners, LLC RIA/Wealth	$235.2K 13.0K shares
Diametric Capital, LP Hedge Fund•Long/Short	$207.2K 11.4K shares
G Gen-Wealth Partners Inc Institution	$18.5K 1.0K shares
Groupe la Francaise Fund of Funds	$18.5K 1.2K shares

Exited Positions

Institution	Previous Position
ALGERT COLDIRON INVESTORS LLC Hedge Fund•Quant	$6.3M 323.6K shares
Vident Advisory, LLC ETF Provider	$2.5M 130.4K shares
L LPL Financial LLC Institution	$2.3M 119.2K shares
SEGALL BRYANT & HAMILL Long Only Manager	$1.3M 65.4K shares
Haven Private, LLC RIA/Wealth	$838.3K 43.3K shares
S STRS OHIO Institution	$719.8K 37.2K shares
CenterBook Partners LP Hedge Fund•Market Neutral	$691.1K 35.7K shares
P PICTON MAHONEY ASSET MANAGEMENT Institution	$672.5K 34.8K shares
T TEXAS PERMANENT SCHOOL FUND Institution	$622.8K 32.2K shares
Horizon Investments, LLC/SC Long Only Manager	$552.8K 28.6K shares

Options Activity

Institutions with the largest Call and Put options positions in ATEN as of Q3 2025

Call Positions: 2
Call Value: $279.5K
Put Positions: 3
Put Value: $540.9K

Call Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$279.5K 154.0 contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	- - contracts

Put Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$243.2K 134.0 contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$183.3K 101.0 contracts
WOLVERINE ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$114.3K 63.0 contracts

Most Committed Institutions

Institutions with ATEN as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
October Effect Ltd RIA/Wealth	Frank David Tehel Managing Partner	3.07% $2.8M	0.21% 153.5K shares	Q3 2025 Held for 2 months	$90.6M
Bridge City Capital, LLC Long Only Manager	Alexander Jackson Woodward President	2.03% $7.6M	0.58% 419.7K shares	Q1 2021 Held for 4y 8m	$374.5M
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. Long Only Manager	Andrew John Matysik CEO	1.52% $26.0M	1.98% 1.4M shares	Q1 2022 Held for 3y 8m	$1.7B
Q QSV Equity Investors LLC Institution	-	1.21% $1.2M	0.09% 65.5K shares	Q3 2025 Held for 2 months	$97.9M
Penserra Capital Management LLC ETF Provider	George Nmn Madrigal CEO	0.90% $66.4M	5.07% 3.7M shares	Q4 2024 Held for 11 months	$7.4B
H HUSSMAN STRATEGIC ADVISORS, INC. Institution	John Peter Hussman President	0.83% $3.8M	0.29% 210.0K shares	Q3 2025 Held for 2 months	$458.6M
Verity Asset Management, Inc. RIA/Wealth	Sean Jennings Mcgill President	0.54% $1.7M	0.13% 91.4K shares	Q3 2022 Held for 3y 2m	$304.9M
Illumine Investment Management, LLC RIA/Wealth	Amanda K Holloway CCO	0.52% $734.6K	0.06% 40.5K shares	Q2 2025 Held for 5 months	$140.3M
S SUMMIT PARTNERS L P Institution	-	0.37% $3.4M	0.26% 187.4K shares	Q2 2014 Held for 11y 5m	$924.3M
B BTIM Corp. Institution	-	0.35% $47.9M	3.66% 2.6M shares	Q1 2025 Held for 8 months	$13.6B

Hedge Fund Spotlight

Discover hedge funds investing in ATEN

TWO SIGMA INVESTMENTS LLC

Hedge Fund • Multi-Strategy

Portfolio ManagerScott David Hoffman

Portfolio Value: $62.0B
Positions: 3,252
Last Reported: Q3 2025

Sector Allocation

Position in A10 Networks

Market Value: $12.4M
Shares Held: 683.2K
Portfolio Weight: 0.02%
Owned Since: 2015-Q4

Top Holding	Sector	Market Value	Weight
1 SPDR S&P 500 ETF Trust SPY	ETF ETF	$680.4M	1.10%
2 Financial Select Sector SPDR Fund XLF	ETF ETF	$582.6M	0.94%
3 Consumer Staples Select Sector SPDR Fund XLP	ETF ETF	$489.6M	0.79%