Security record · archived quarter
ATEN
A10 Networks, Inc. · Technology · Software - Infrastructure
100Tracked holders
+6Δ holders
51.94MShares held
$1.20BReported value
+8New positions
−3Exits
Momentum inputs (comparable managers):
holder breadth +6.4% ·
share flow +4.7% ·
net new positions +5.0%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 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 · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 13.09M | +0.8% | $302.60M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 15 | Vanguard Capital Management Llc | 3.12M | — | $72.16M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | State Street Global Advisors ✦ (passive) | 3.09M | -0.8% | $71.45M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 17 | Wellington Management ✦ | 2.07M | +2.7% | $47.96M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 18 | Wellington Management ✦ | 2.07M | +2.7% | $47.96M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 19 | Wellington Management ✦ | 2.07M | +2.7% | $47.96M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 20 | Wellington Management ✦ | 2.07M | +2.7% | $47.96M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 21 | Wellington Management ✦ | 2.07M | +2.7% | $47.96M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 22 | Wellington Management ✦ | 2.07M | +2.7% | $47.96M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 23 | Barclays Plc | 1.87M | +1.8% | $43.34M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 24 | Barclays Plc | 1.87M | +1.8% | $43.34M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 25 | Barclays Plc | 1.87M | +1.8% | $43.34M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 26 | Renaissance Technologies ✦ | 1.78M | -16.4% | $41.27M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 27 | First Trust Advisors Lp | 1.72M | -30.2% | $39.76M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 28 | Geode Capital Management ✦ (passive) | 1.72M | -3.4% | $39.71M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 29 | Geode Capital Management ✦ (passive) | 1.72M | -3.4% | $39.71M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 30 | Dimensional Fund Advisors Lp | 1.64M | -0.8% | $37.82M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 31 | Dimensional Fund Advisors Lp | 1.64M | -0.8% | $37.82M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 32 | Dimensional Fund Advisors Lp | 1.64M | -0.8% | $37.82M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 33 | Dimensional Fund Advisors Lp | 1.64M | -0.8% | $37.82M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 34 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 1.56M | +7.4% | $35.97M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 35 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 1.56M | +7.4% | $35.97M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 36 | Arrowstreet Capital ✦ | 1.50M | +36.7% | $34.61M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 37 | Two Sigma Investments ✦ | 1.32M | +79.9% | $30.52M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 38 | Goldman Sachs Group ✦ | 1.19M | +14.7% | $27.44M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 39 | Goldman Sachs Group ✦ | 1.19M | +14.7% | $27.44M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 40 | T. Rowe Price ✦ | 1.07M | -30.2% | $24.80M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 41 | T. Rowe Price ✦ | 1.07M | -30.2% | $24.80M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 42 | Prudential Financial Inc | 885.21K | +1105.9% | $20.47M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 43 | Prudential Financial Inc | 885.21K | +1105.9% | $20.47M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 44 | Boston Partners | 815.79K | -2.9% | $19.00M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 45 | Boston Partners | 815.79K | -2.9% | $19.00M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 46 | Morgan Stanley ✦ | 813.09K | +1.1% | $18.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 47 | Morgan Stanley ✦ | 813.09K | +1.1% | $18.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 48 | Morgan Stanley ✦ | 813.09K | +1.1% | $18.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 49 | Morgan Stanley ✦ | 813.09K | +1.1% | $18.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 50 | Morgan Stanley ✦ | 813.09K | +1.1% | $18.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | Morgan Stanley ✦ | 813.09K | +1.1% | $18.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | Morgan Stanley ✦ | 813.09K | +1.1% | $18.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 53 | Morgan Stanley ✦ | 813.09K | +1.1% | $18.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 54 | Morgan Stanley ✦ | 813.09K | +1.1% | $18.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 55 | Charles Schwab Investment… | 743.97K | +2.1% | $17.20M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 56 | Northern Trust Corp | 704.40K | +2.4% | $16.29M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 57 | Northern Trust Corp | 704.40K | +2.4% | $16.29M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 58 | Northern Trust Corp | 704.40K | +2.4% | $16.29M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 59 | Northern Trust Corp | 704.40K | +2.4% | $16.29M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 60 | Northern Trust Corp | 704.40K | +2.4% | $16.29M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 61 | Northern Trust Corp | 704.40K | +2.4% | $16.29M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 62 | Bank of New York Mellon Corp | 660.64K | -0.8% | $15.27M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 63 | Bank of New York Mellon Corp | 660.64K | -0.8% | $15.27M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 64 | Bank of New York Mellon Corp | 660.64K | -0.8% | $15.27M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 65 | Bank of New York Mellon Corp | 660.64K | -0.8% | $15.27M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 66 | Bank of New York Mellon Corp | 660.64K | -0.8% | $15.27M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 67 | Jane Street Group, Llc | 595.95K | New | $13.78M | 0.0% | New | 1 | SEC ↗ |
| 68 | Jane Street Group, Llc | 595.95K | New | $13.78M | 0.0% | New | 1 | SEC ↗ |
| 69 | Jane Street Group, Llc | 595.95K | New | $13.78M | 0.0% | New | 1 | SEC ↗ |
| 70 | Royal Bank Of Canada | 536.46K | +9899.3% | $12.40M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 71 | Royal Bank Of Canada | 536.46K | +9899.3% | $12.40M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 72 | Royal Bank Of Canada | 536.46K | +9899.3% | $12.40M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 73 | Royal Bank Of Canada | 536.46K | +9899.3% | $12.40M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 74 | Royal Bank Of Canada | 536.46K | +9899.3% | $12.40M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 75 | Royal Bank Of Canada | 536.46K | +9899.3% | $12.40M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 76 | Royal Bank Of Canada | 536.46K | +9899.3% | $12.40M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 77 | Citadel Advisors ✦ | 514.02K | +238.1% | $11.88M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 78 | Citadel Advisors ✦ | 514.02K | +238.1% | $11.88M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 79 | Principal Financial Group Inc | 436.28K | -3.5% | $10.09M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 80 | Principal Financial Group Inc | 436.28K | -3.5% | $10.09M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 81 | Millennium Management ✦ | 414.92K | +95.7% | $9.59M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 82 | UBS Group AG | 390.06K | -9.3% | $9.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 83 | UBS Group AG | 390.06K | -9.3% | $9.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 84 | UBS Group AG | 390.06K | -9.3% | $9.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 85 | Russell Investments Group, Ltd. | 389.78K | +1064.4% | $9.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 86 | Russell Investments Group, Ltd. | 389.78K | +1064.4% | $9.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 87 | Russell Investments Group, Ltd. | 389.78K | +1064.4% | $9.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 88 | Russell Investments Group, Ltd. | 389.78K | +1064.4% | $9.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 89 | Russell Investments Group, Ltd. | 389.78K | +1064.4% | $9.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 90 | Russell Investments Group, Ltd. | 389.78K | +1064.4% | $9.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 91 | Bnp Paribas Financial Markets | 389.71K | +84.9% | $9.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 92 | Invesco Ltd. | 362.67K | -56.6% | $8.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 93 | Invesco Ltd. | 362.67K | -56.6% | $8.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 94 | Invesco Ltd. | 362.67K | -56.6% | $8.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 95 | Invesco Ltd. | 362.67K | -56.6% | $8.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 96 | Invesco Ltd. | 362.67K | -56.6% | $8.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 97 | Wells Fargo & Company/Mn | 332.53K | +29.8% | $7.69M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 98 | Wells Fargo & Company/Mn | 332.53K | +29.8% | $7.69M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 99 | Hrt Financial Lp | 320.38K | New | $7.41M | 0.0% | New | 1 | SEC ↗ |
| 100 | JPMorgan Chase ✦ | 326.65K | +50.5% | $7.30M | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Jane Street Group, Llc | $13.78M | 0.0% |
| Jane Street Group, Llc | $13.78M | 0.0% |
| Jane Street Group, Llc | $13.78M | 0.0% |
| Hrt Financial Lp | $7.41M | 0.0% |
Exited
| Alyeska Investment Group, L.P. | $4.81M | was 0.0% |
| Norges Bank | $464,752 | was 0.0% |
| Danske Bank A/S | $7,076 | 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: Q1 2026 ·
Methodology ·
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