A10 Networks, Inc.

Historical 13F Holders

Symbol
ATEN
CUSIP
002121101
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for 002121101 since 12/18/2024, newest first.

Filer % of Class Filed
First Trust Portfolios L.P. 13G
6.7% 7/30/2026
Event 6/30/2026
Vanguard Capital Management LLC 13G 5.1% 4/29/2026
Event 3/31/2026
Vanguard Group Inc 13G/A Amendment 5 0% 3/26/2026
Event 3/13/2026
Legal & General Investment Management Ltd 13G/A Amendment 1
3.1% 7/9/2025
Event 12/31/2021
Vanguard Group Inc 13G/A Amendment 4 10.1% 3/6/2025
Event 2/28/2025

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 24 1.05 M $28.6 M
2026 Q2 322 79.4 M $2.94 B
2026 Q1 269 72.3 M $1.67 B
2025 Q4 245 70.4 M $1.25 B
2025 Q3 244 70.6 M $1.28 B
2025 Q2 240 70.4 M $1.36 B
2025 Q1 264 70.8 M $1.16 B
2024 Q4 225 65.3 M $1.19 B
2024 Q3 214 65.8 M $950 M
2024 Q2 229 68.8 M $949 M
2024 Q1 193 70.5 M $968 M
2023 Q4 203 70.1 M $924 M
2023 Q3 202 65.4 M $983 M
2023 Q2 205 65.5 M $954 M
2023 Q1 224 63.5 M $984 M
2022 Q4 235 68.2 M $1.13 B
2022 Q3 216 65.3 M $867 M
2022 Q2 212 68.9 M $990 M
2022 Q1 207 64.4 M $898 M
2021 Q4 187 65.0 M $1.08 B
2021 Q3 155 67.2 M $906 M
2021 Q2 140 66.4 M $747 M
2021 Q1 145 66.2 M $888 M
2020 Q4 157 63.4 M $625 M
2020 Q3 148 60.0 M $383 M
2020 Q2 131 57.2 M $389 M
2020 Q1 109 53.9 M $336 M
2019 Q4 108 53.3 M $366 M
2019 Q3 108 52.7 M $365 M
2019 Q2 108 52.9 M $361 M
2019 Q1 121 49.9 M $354 M
2018 Q4 115 47.6 M $297 M
2018 Q3 100 45.5 M $276 M
2018 Q2 95 45.5 M $277 M
2018 Q1 103 46.3 M $269 M
2017 Q4 109 44.0 M $340 M
2017 Q3 103 41.1 M $310 M
2017 Q2 113 40.0 M $337 M
2017 Q1 126 40.0 M $366 M
2016 Q4 111 39.3 M $326 M
2016 Q3 117 35.8 M $383 M
2016 Q2 108 30.7 M $199 M
2016 Q1 106 29.3 M $173 M
2015 Q4 112 28.6 M $188 M
2015 Q3 89 28.2 M $169 M
2015 Q2 79 25.3 M $163 M
2015 Q1 57 21.9 M $95.2 M
2014 Q4 70 23.6 M $102 M
2014 Q3 57 22.4 M $204 M
2014 Q2 67 21.5 M $286 M
2014 Q1 11 2.32 M $34.9 M