ATEN · NYSE · Software - Infrastructure

A10 Networks

Protects and accelerates application traffic across enterprise, service-provider, cloud, and AI infrastructure.

$25.70
After-hours close−0.00 (−0.02%)
At close$25.71(−4.90%)

Breakdown13F · Form 4

Institutions 111.19%Insiders 2.25%

A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.

Shares outstanding 72.00M · Float 70.69M · 98.2% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
BlackRock, Inc.13.57M18.85%13FAug 7, 2026
First Trust Portfolios L.P.4.81M6.68%13GJul 30, 2026
Vanguard Portfolio Management LLC3.46M4.81%13FAug 13, 2026
First Trust Advisors LP3.24M4.51%13FAug 11, 2026
State Street Corp3.08M4.28%13FAug 7, 2026

Institutions13F, as of Jun 30, 2026

316 holders · 80.06M shares · 81 new positions · 174 increased · 98 reduced · 35 closed

HolderShares% outstandingChg q/qFiled
BlackRock, Inc.13.57M18.85%+480.2KAug 7, 2026
Vanguard Portfolio Management LLC3.46M4.81%+74.2KAug 13, 2026
First Trust Advisors LP3.24M4.51%+1.52MAug 11, 2026
State Street Corp3.08M4.28%−7.6KAug 7, 2026
Vanguard Capital Management LLC3.07M4.27%−49.9KAug 13, 2026
Penserra Capital Management LLC3.07M4.26%−526.1KAug 13, 2026
Boston Trust Walden Corp2.42M3.36%+243.5KJul 24, 2026
Wellington Management Group LLP1.96M2.72%−114.7KAug 14, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
First Trust Portfolios L.P.6.68%4.81M13GJul 30, 2026
Vanguard Capital Management5.09%3.65M13GApr 29, 2026

InsidersForm 4

InsiderRoleShares% outstandingFiled
Dhrupad Trivedidirector, officer: Chief Executive Officer887.8K1.23%May 15, 2026
Peter Y. Chungdirector207.3K0.29%Apr 24, 2026
Tor Brahamdirector192.8K0.27%Apr 23, 2026
Brian Beckerofficer: Chief Financial Officer77.6K0.11%Aug 14, 2025
Eric Singerdirector68.8K0.10%May 6, 2026
Dana Elizabeth Wolfdirector57.4K0.08%Aug 25, 2026
Robert Scott Weberofficer: General Counsel50.6K0.07%Aug 12, 2026
Sheen George Khouryofficer: Executive VP, Sales and Mktg44.3K0.06%Feb 13, 2026
Michelle Elizabeth Caronofficer: Chief Financial Officer35.6K0.05%May 15, 2026

3 ten-percent owners hold 22.49M shares by Form 4, outside the officers-and-directors figure above · 19 people have not refiled in the last 18 months (11.10M shares), so they are not in the figure above

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Aug 25, 2026
Dana Elizabeth Wolfdirector
Sale2,652$25.6557,409
Aug 11, 2026
Robert Scott Weberofficer: General Counsel
Sale14,086$27.8650,586
May 5, 2026
Eric Singerdirector
Sale24,698$27.2168,806
Feb 12, 2026
Dhrupad Trivedidirector, officer: Chief Executive Officer
Sale33,333$20.56615,415
Feb 11, 2026
Dhrupad Trivedidirector, officer: Chief Executive Officer
Sale33,333$20.69648,748
Feb 13, 2026
Dhrupad Trivedidirector, officer: Chief Executive Officer
Sale33,334$20.55713,597

CongressHouse and Senate disclosures

Not reported.