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A10 Networks, Inc.

ATEN
Exchange
NYSE
Industry
Computer Communications Equipment
SEC CIK
0001580808

In the last 90 days, A10 Networks, Inc. insiders filed 0 open-market purchases and 2 sales; 312 institutions reported holding it in 13F filings for Q2 2026, worth $2.86B in total; no superinvestor holds it.

Holders of 5% or more of ATEN

Holders whose latest Schedule 13D or 13G filing reports 5% or more of A10 Networks, Inc., largest stake first. The change is against the holder's previous filing.

No holder currently reports owning 5% or more of A10 Networks, Inc. on Schedule 13D or 13G.

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

3 Schedule 13D and 13G filings on A10 Networks, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on ATEN
Filed (ET)FilerFormStakeChangeEvent dateFiling
Mar 26, 20263:06 PM ETVanguard Group Inc13G/A0.00%0 shares−10.05 ppfrom 10.05%Below 5%Mar 13, 2026SEC
Jul 9, 202510:19 AM ETLegal & General Investment Management Ltdand 4 others13G/A3.10%2.41M shares–Below 5%Dec 31, 2021SEC
Mar 6, 20252:09 PM ETVanguard Group Inc13G/A10.05%7.44M shares–Feb 28, 2025SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell A10 Networks, Inc. shares.

No Form 144 notices for A10 Networks, Inc. are on file.