Security record
ATEN
A10 Networks, Inc. · Technology · Software - Infrastructure
111Tracked holders
+13Δ holders
56.93MShares held
$2.09BReported value
+19New positions
−5Exits
Momentum inputs (comparable managers):
holder breadth +13.3% ·
share flow +10.0% ·
net new positions +12.6%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 111 | +13 | 56.93M | $2.09B | +19 | −5 |
| Q1 2026 | 100 | +6 | 51.94M | $1.20B | +8 | −3 |
| Q4 2025 | 95 | -2 | 53.78M | $951.26M | +1 | −2 |
| Q3 2025 | 21 | +1 | 36.30M | $658.81M | +1 | −1 |
| Q2 2025 | 18 | +1 | 34.16M | $661.04M | +1 | — |
| Q1 2025 | 14 | -1 | 13.16M | $215.02M | — | −1 |
| Q4 2024 | 15 | +3 | 11.15M | $205.16M | +3 | — |
| Q3 2024 | 11 | 0 | 6.53M | $94.30M | +1 | −1 |
| Q2 2024 | 11 | — | 7.34M | $101.70M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 13.57M | +3.7% | $506.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 13.57M | +3.7% | $506.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 13.57M | +3.7% | $506.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 13.57M | +3.7% | $506.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 13.57M | +3.7% | $506.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 13.57M | +3.7% | $506.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 13.57M | +3.7% | $506.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 13.57M | +3.7% | $506.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 13.57M | +3.7% | $506.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 13.57M | +3.7% | $506.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 13.57M | +3.7% | $506.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 13.57M | +3.7% | $506.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 13.57M | +3.7% | $506.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 14 | First Trust Advisors Lp | 3.24M | +88.7% | $121.22M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 15 | State Street Global Advisors ✦ (passive) | 3.08M | -0.2% | $115.17M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 16 | Vanguard Capital Management Llc | 3.07M | -1.6% | $114.74M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | Wellington Management ✦ | 1.96M | -5.5% | $73.22M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 18 | Wellington Management ✦ | 1.96M | -5.5% | $73.22M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 19 | Wellington Management ✦ | 1.96M | -5.5% | $73.22M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 20 | Wellington Management ✦ | 1.96M | -5.5% | $73.22M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 21 | Wellington Management ✦ | 1.96M | -5.5% | $73.22M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 22 | Wellington Management ✦ | 1.96M | -5.5% | $73.22M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 23 | Geode Capital Management ✦ (passive) | 1.81M | +5.6% | $67.77M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 24 | Geode Capital Management ✦ (passive) | 1.81M | +5.6% | $67.77M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 25 | Goldman Sachs Group ✦ | 1.78M | +50.4% | $66.69M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 26 | Goldman Sachs Group ✦ | 1.78M | +50.4% | $66.69M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 27 | Goldman Sachs Group ✦ | 1.78M | +50.4% | $66.69M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 28 | Dimensional Fund Advisors Lp | 1.60M | -2.2% | $59.74M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 29 | Dimensional Fund Advisors Lp | 1.60M | -2.2% | $59.74M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 30 | Dimensional Fund Advisors Lp | 1.60M | -2.2% | $59.74M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 31 | Dimensional Fund Advisors Lp | 1.60M | -2.2% | $59.74M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 32 | Dimensional Fund Advisors Lp | 1.60M | -2.2% | $59.74M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 33 | Renaissance Technologies ✦ | 1.52M | -14.8% | $56.80M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 34 | Arrowstreet Capital ✦ | 1.44M | -4.0% | $53.71M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 35 | Fidelity (FMR) ✦ | 1.43M | +5001.7% | $53.57M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 36 | Fidelity (FMR) ✦ | 1.43M | +5001.7% | $53.57M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 37 | Fidelity (FMR) ✦ | 1.43M | +5001.7% | $53.57M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 38 | Fidelity (FMR) ✦ | 1.43M | +5001.7% | $53.57M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 39 | Fidelity (FMR) ✦ | 1.43M | +5001.7% | $53.57M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 40 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 1.43M | -8.3% | $53.27M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 41 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 1.43M | -8.3% | $53.27M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 42 | Invesco Ltd. | 1.24M | +242.8% | $46.44M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 43 | Invesco Ltd. | 1.24M | +242.8% | $46.44M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 44 | Invesco Ltd. | 1.24M | +242.8% | $46.44M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 45 | Invesco Ltd. | 1.24M | +242.8% | $46.44M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 46 | Invesco Ltd. | 1.24M | +242.8% | $46.44M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 47 | Invesco Ltd. | 1.24M | +242.8% | $46.44M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 48 | Two Sigma Investments ✦ | 1.12M | -14.8% | $42.03M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 49 | Prudential Financial Inc | 1.05M | +18.4% | $39.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 50 | Prudential Financial Inc | 1.05M | +18.4% | $39.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | Barclays Plc | 962.38K | -48.7% | $35.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 52 | Barclays Plc | 962.38K | -48.7% | $35.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 53 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 54 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 55 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 56 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 57 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 58 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 59 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 60 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 61 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 62 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 63 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 64 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 65 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 66 | Nomura Asset Management… | 896.52K | New | $33.49M | 0.1% | New | 1 | SEC ↗ |
| 67 | T. Rowe Price ✦ | 894.40K | -16.6% | $33.42M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 68 | T. Rowe Price ✦ | 894.40K | -16.6% | $33.42M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 69 | Loomis Sayles & Co L P | 884.02K | New | $33.03M | 0.0% | New | 1 | SEC ↗ |
| 70 | Loomis Sayles & Co L P | 884.02K | New | $33.03M | 0.0% | New | 1 | SEC ↗ |
| 71 | Boston Partners | 802.47K | -1.6% | $30.02M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 72 | Boston Partners | 802.47K | -1.6% | $30.02M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 73 | Charles Schwab Investment… | 761.68K | +2.4% | $28.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 74 | Northern Trust Corp | 756.48K | +7.4% | $28.26M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 75 | Northern Trust Corp | 756.48K | +7.4% | $28.26M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 76 | Northern Trust Corp | 756.48K | +7.4% | $28.26M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 77 | Northern Trust Corp | 756.48K | +7.4% | $28.26M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 78 | Northern Trust Corp | 756.48K | +7.4% | $28.26M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 79 | Northern Trust Corp | 756.48K | +7.4% | $28.26M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 80 | UBS Group AG | 736.55K | +88.8% | $27.52M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 81 | UBS Group AG | 736.55K | +88.8% | $27.52M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 82 | UBS Group AG | 736.55K | +88.8% | $27.52M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 83 | UBS Group AG | 736.55K | +88.8% | $27.52M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 84 | UBS Group AG | 736.55K | +88.8% | $27.52M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 85 | Bank of New York Mellon Corp | 1.56M | +136.1% | $26.10M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 86 | Bank of New York Mellon Corp | 1.56M | +136.1% | $26.10M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 87 | Bank of New York Mellon Corp | 1.56M | +136.1% | $26.10M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 88 | Bank of New York Mellon Corp | 1.56M | +136.1% | $26.10M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 89 | Bank of New York Mellon Corp | 1.56M | +136.1% | $26.10M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 90 | Bank of New York Mellon Corp | 1.56M | +136.1% | $26.10M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 91 | Bank of New York Mellon Corp | 1.56M | +136.1% | $26.10M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 92 | Bank of New York Mellon Corp | 1.56M | +136.1% | $26.10M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 93 | Bnp Paribas Financial Markets | 573.16K | +47.1% | $21.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 94 | Bnp Paribas Financial Markets | 573.16K | +47.1% | $21.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 95 | D. E. Shaw & Co. ✦ | 547.58K | +107.9% | $20.46M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 96 | D. E. Shaw & Co. ✦ | 547.58K | +107.9% | $20.46M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 97 | Royal Bank Of Canada | 463.00K | -13.7% | $17.30M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 98 | Royal Bank Of Canada | 463.00K | -13.7% | $17.30M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 99 | Royal Bank Of Canada | 463.00K | -13.7% | $17.30M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 100 | Royal Bank Of Canada | 463.00K | -13.7% | $17.30M | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Nomura Asset Management… | $33.49M | 0.1% |
| Loomis Sayles & Co L P | $33.03M | 0.0% |
| Loomis Sayles & Co L P | $33.03M | 0.0% |
Exited
| Hrt Financial Lp | $7.41M | was 0.0% |
| Man Group plc | $7.04M | was 0.0% |
| Healthcare Of Ontario Pension… | $2.29M | was 0.0% |
| Squarepoint Ops LLC | $1.06M | was 0.0% |
| Mackenzie Financial Corp | $1.02M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 263 holders, 71.95M shares, $1.53B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Aug 25
Wolf Dana Elizabeth
Director · 2.65K sh · $68,024
Aug 11
Weber Robert Scott
Officer · 14.09K sh · $392,436
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Jul 30
SC 13G — FIRST TRUST PORTFOLIOS LP
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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