ATEN A10 Networks, Inc.
A10 Networks, Inc. (ATEN) Institutional Ownership
What the institutions did with ATEN last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 13.6M | 17.1% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.5M | 4.4% |
| FIRST TRUST ADVISORS LP | 3.2M | 4.1% |
| STATE STREET CORP | 3.1M | 3.9% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.1M | 3.9% |
| Penserra Capital Management LLC | 3.1M | 3.9% |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 2.9M | 3.6% |
| Boston Trust Walden Corp | 2.4M | 3.0% |
| WELLINGTON MANAGEMENT GROUP LLP | 2.0M | 2.5% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8M | 2.3% |
| GOLDMAN SACHS GROUP INC | 1.8M | 2.3% |
| DIMENSIONAL FUND ADVISORS LP | 1.6M | 2.0% |
| RENAISSANCE TECHNOLOGIES LLC | 1.5M | 1.9% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.4M | 1.8% |
| FMR LLC | 1.4M | 1.8% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1.4M | 1.8% |
| Invesco Ltd. | 1.2M | 1.6% |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | 1.2M | 1.5% |
| TWO SIGMA INVESTMENTS, LP | 1.1M | 1.4% |
| PRUDENTIAL FINANCIAL INC | 1.0M | 1.3% |
| BARCLAYS PLC | 962.4K | 1.2% |
| MORGAN STANLEY | 908.1K | 1.1% |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 896.5K | 1.1% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 894.4K | 1.1% |
| LOOMIS SAYLES & CO L P | 884.0K | 1.1% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | Increased | 91.5K | 2.9M | +2.8M |
| FIRST TRUST ADVISORS LP | Increased | 1.7M | 3.2M | +1.5M |
| FMR LLC | Increased | 28.1K | 1.4M | +1.4M |
| BARCLAYS PLC | Reduced | 1.9M | 962.4K | -912.1K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | New | 0 | 896.5K | +896.5K |
| LOOMIS SAYLES & CO L P | New | 0 | 884.0K | +884.0K |
| Invesco Ltd. | Increased | 362.7K | 1.2M | +880.4K |
| GOLDMAN SACHS GROUP INC | Increased | 1.2M | 1.8M | +598.2K |
| DEPRINCE RACE & ZOLLO INC | Sold Out | 564.8K | 0 | -564.8K |
| Penserra Capital Management LLC | Reduced | 3.6M | 3.1M | -526.1K |
| JANE STREET GROUP, LLC | Reduced | 595.9K | 93.9K | -502.1K |
| BlackRock, Inc. | Increased | 13.1M | 13.6M | +480.2K |
| ACADIAN ASSET MANAGEMENT LLC | New | 0 | 455.8K | +455.8K |
| CITADEL ADVISORS LLC | Reduced | 514.0K | 93.2K | -420.8K |
| WASATCH ADVISORS LP | New | 0 | 416.1K | +416.1K |
| Ceredex Value Advisors LLC | New | 0 | 387.8K | +387.8K |
| UBS Group AG | Increased | 390.1K | 736.6K | +346.5K |
| HRT FINANCIAL LP | Sold Out | 320.4K | 0 | -320.4K |
| Man Group plc | Sold Out | 304.4K | 0 | -304.4K |
| D. E. Shaw & Co., Inc. | Increased | 263.4K | 547.6K | +284.2K |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | Reduced | 1.5M | 1.2M | -271.2K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 1.8M | 1.5M | -264.7K |
| Russell Investments Group, Ltd. | Reduced | 389.8K | 135.0K | -254.8K |
| BANK OF AMERICA CORP /DE/ | Increased | 206.7K | 461.4K | +254.7K |
| ENVESTNET ASSET MANAGEMENT INC | New | 0 | 247.9K | +247.9K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.