ATEN: A10 Networks, Inc. insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-07-30 | New 13G stake | First Trust Portfolios L.P. | 6.68% | SEC |
Institutional ownership (Q2 2026)
313 institutions reported holding $2.67B of A10 Networks, Inc. on Form 13F (265 the quarter before). 76 opened a new position and 27 sold out. Shares held by institutions: +6%.
| Largest holders | Shares | Value |
|---|---|---|
| BlackRock, Inc. | 13,568,496 | $506.92M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3,462,058 | $129.34M |
| FIRST TRUST ADVISORS LP | 3,244,739 | $121.22M |
| STATE STREET CORP | 3,082,631 | $115.17M |
| VANGUARD CAPITAL MANAGEMENT LLC | 3,071,071 | $114.74M |
| Boston Trust Walden Corp | 2,416,808 | $90.29M |
| WELLINGTON MANAGEMENT GROUP LLP | 1,959,853 | $73.22M |
| GEODE CAPITAL MANAGEMENT, LLC | 1,813,638 | $67.77M |
| GOLDMAN SACHS GROUP INC | 1,784,946 | $66.69M |
| DIMENSIONAL FUND ADVISORS LP | 1,599,129 | $59.74M |
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