Who owns A10 Networks, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ATEN from SEC Form 13F filings across 313 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 313 institutions disclosed 76.5M shares of A10 Networks, Inc. worth $2.86B — about 106.1% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
313
13F holders
$2.86B
value, 2026 filers
106.1%
of shares outstanding (76.5M sh)
80
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of ATEN's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 13.6M | $506.9M | 0.0% | 18.8% | +3.7% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 3.5M | $129.3M | 0.0% | 4.8% | +2.2% |
| 3 | FIRST TRUST ADVISORS LP | 3.2M | $121.2M | 0.1% | 4.5% | +88.7% |
| 4 | STATE STREET CORP | 3.1M | $115.2M | 0.0% | 4.3% | -0.2% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 3.1M | $114.7M | 0.0% | 4.3% | -1.6% |
| 6 | Penserra Capital Management LLC | 3.1M | $114.6M | 0.9% | 4.3% | -14.6% |
| 7 | Boston Trust Walden Corp | 2.4M | $90.3M | 0.7% | 3.3% | +11.2% |
| 8 | WELLINGTON MANAGEMENT GROUP LLP | 2.0M | $73.2M | 0.0% | 2.7% | -5.5% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 1.8M | $67.8M | 0.0% | 2.5% | +5.6% |
| 10 | GOLDMAN SACHS GROUP INC | 1.8M | $66.7M | 0.0% | 2.5% | +50.4% |
| 11 | DIMENSIONAL FUND ADVISORS LP | 1.6M | $59.7M | 0.0% | 2.2% | -2.3% |
| 12 | RENAISSANCE TECHNOLOGIES LLC | 1.5M | $56.8M | 0.1% | 2.1% | -14.8% |
| 13 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.4M | $53.7M | 0.0% | 2% | -4.0% |
| 14 | FMR LLC | 1.4M | $53.6M | 0.0% | 2% | +5001.7% |
| 15 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1.4M | $53.3M | 0.1% | 2% | -8.3% |
| 16 | Invesco Ltd. | 1.2M | $46.4M | 0.0% | 1.7% | +242.7% |
| 17 | PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | 1.2M | $44.4M | 2.2% | 1.6% | -18.6% |
| 18 | TWO SIGMA INVESTMENTS, LP | 1.1M | $42.0M | 0.0% | 1.6% | -14.8% |
| 19 | PRUDENTIAL FINANCIAL INC | 1.0M | $39.2M | 0.0% | 1.5% | +18.4% |
| 20 | BARCLAYS PLC | 962,382 | $36.0M | 0.0% | 1.3% | -48.7% |
| 21 | MORGAN STANLEY | 908,083 | $33.9M | 0.0% | 1.3% | +11.7% |
| 22 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC.NEW | 896,517 | $33.5M | 0.1% | 1.2% | new |
| 23 | PRICE T ROWE ASSOCIATES INC /MD/ | 894,398 | $33.4M | 0.0% | 1.2% | -16.6% |
| 24 | LOOMIS SAYLES & CO L PNEW | 884,023 | $33.0M | 0.0% | 1.2% | new |
| 25 | Boston Partners | 802,469 | $30.0M | 0.0% | 1.1% | -1.6% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.