Security record · archived quarter
ATEN
A10 Networks, Inc. · Technology · Software - Infrastructure
95Tracked holders
-2Δ holders
53.78MShares held
$951.26MReported value
+1New positions
−2Exits
Momentum inputs (comparable managers):
holder breadth -2.1% ·
share flow -1.9% ·
net new positions -1.1%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
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 · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 12.99M | -0.6% | $229.71M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 7.24M | +0.1% | $128.11M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 7.24M | +0.1% | $128.11M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 7.24M | +0.1% | $128.11M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 7.24M | +0.1% | $128.11M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 21 | The Vanguard Group ✦ (passive) | 7.24M | +0.1% | $128.11M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 22 | State Street Global Advisors ✦ (passive) | 3.12M | -5.2% | $55.12M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 23 | First Trust Advisors Lp | 2.46M | — | $43.58M | 0.0% | n/c | 1 | SEC ↗ |
| 24 | Renaissance Technologies ✦ | 2.13M | -10.6% | $37.76M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 25 | Wellington Management ✦ | 2.02M | -1.7% | $35.73M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 26 | Wellington Management ✦ | 2.02M | -1.7% | $35.73M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 27 | Wellington Management ✦ | 2.02M | -1.7% | $35.73M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 28 | Wellington Management ✦ | 2.02M | -1.7% | $35.73M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 29 | Wellington Management ✦ | 2.02M | -1.7% | $35.73M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 30 | Wellington Management ✦ | 2.02M | -1.7% | $35.73M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 31 | Barclays Plc | 1.84M | — | $32.58M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | Barclays Plc | 1.84M | — | $32.58M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Geode Capital Management ✦ (passive) | 1.78M | +0.6% | $31.45M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 34 | Geode Capital Management ✦ (passive) | 1.78M | +0.6% | $31.45M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 35 | Dimensional Fund Advisors Lp | 1.65M | — | $29.17M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Dimensional Fund Advisors Lp | 1.65M | — | $29.17M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Dimensional Fund Advisors Lp | 1.65M | — | $29.17M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Dimensional Fund Advisors Lp | 1.65M | — | $29.17M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Dimensional Fund Advisors Lp | 1.65M | — | $29.17M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | T. Rowe Price ✦ | 1.54M | -2.3% | $27.18M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 41 | T. Rowe Price ✦ | 1.54M | -2.3% | $27.18M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 42 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 1.45M | — | $25.63M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 1.45M | — | $25.63M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Arrowstreet Capital ✦ | 1.10M | -10.7% | $19.38M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 45 | Goldman Sachs Group ✦ | 1.03M | +66.8% | $18.30M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 46 | Goldman Sachs Group ✦ | 1.03M | +66.8% | $18.30M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 47 | Boston Partners | 840.14K | — | $14.80M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Boston Partners | 840.14K | — | $14.80M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Invesco Ltd. | 836.18K | — | $14.79M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Invesco Ltd. | 836.18K | — | $14.79M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Invesco Ltd. | 836.18K | — | $14.79M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Invesco Ltd. | 836.18K | — | $14.79M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Invesco Ltd. | 836.18K | — | $14.79M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Morgan Stanley ✦ | 804.35K | +6.5% | $14.23M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 55 | Morgan Stanley ✦ | 804.35K | +6.5% | $14.23M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 56 | Morgan Stanley ✦ | 804.35K | +6.5% | $14.23M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 57 | Morgan Stanley ✦ | 804.35K | +6.5% | $14.23M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 58 | Morgan Stanley ✦ | 804.35K | +6.5% | $14.23M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 59 | Morgan Stanley ✦ | 804.35K | +6.5% | $14.23M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 60 | Morgan Stanley ✦ | 804.35K | +6.5% | $14.23M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 61 | Morgan Stanley ✦ | 804.35K | +6.5% | $14.23M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 62 | Two Sigma Investments ✦ | 733.73K | +7.4% | $12.98M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 63 | Charles Schwab Investment… | 728.57K | — | $12.89M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | Northern Trust Corp | 687.73K | — | $12.17M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Northern Trust Corp | 687.73K | — | $12.17M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Northern Trust Corp | 687.73K | — | $12.17M | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Northern Trust Corp | 687.73K | — | $12.17M | 0.0% | n/c | 1 | SEC ↗ |
| 68 | Northern Trust Corp | 687.73K | — | $12.17M | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Northern Trust Corp | 687.73K | — | $12.17M | 0.0% | n/c | 1 | SEC ↗ |
| 70 | Northern Trust Corp | 687.73K | — | $12.17M | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Bank of New York Mellon Corp | 665.65K | — | $11.78M | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Bank of New York Mellon Corp | 665.65K | — | $11.78M | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Bank of New York Mellon Corp | 665.65K | — | $11.78M | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Bank of New York Mellon Corp | 665.65K | — | $11.78M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Bank of New York Mellon Corp | 665.65K | — | $11.78M | 0.0% | n/c | 1 | SEC ↗ |
| 76 | Qube Research & Technologies Ltd | 622.67K | — | $11.01M | 0.0% | n/c | 1 | SEC ↗ |
| 77 | Principal Financial Group Inc | 452.25K | — | $8.00M | 0.0% | n/c | 1 | SEC ↗ |
| 78 | Principal Financial Group Inc | 452.25K | — | $8.00M | 0.0% | n/c | 1 | SEC ↗ |
| 79 | UBS Group AG | 430.20K | — | $7.61M | 0.0% | n/c | 1 | SEC ↗ |
| 80 | UBS Group AG | 430.20K | — | $7.61M | 0.0% | n/c | 1 | SEC ↗ |
| 81 | UBS Group AG | 430.20K | — | $7.61M | 0.0% | n/c | 1 | SEC ↗ |
| 82 | Tudor Investment Corp Et Al | 370.44K | — | $6.55M | 0.0% | n/c | 1 | SEC ↗ |
| 83 | Hsbc Holdings Plc | 307.63K | — | $5.45M | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Hsbc Holdings Plc | 307.63K | — | $5.45M | 0.0% | n/c | 1 | SEC ↗ |
| 85 | Hsbc Holdings Plc | 307.63K | — | $5.45M | 0.0% | n/c | 1 | SEC ↗ |
| 86 | Hsbc Holdings Plc | 307.63K | — | $5.45M | 0.0% | n/c | 1 | SEC ↗ |
| 87 | Alyeska Investment Group, L.P. | 272.09K | — | $4.81M | 0.0% | n/c | 1 | SEC ↗ |
| 88 | Wells Fargo & Company/Mn | 256.12K | — | $4.53M | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Wells Fargo & Company/Mn | 256.12K | — | $4.53M | 0.0% | n/c | 1 | SEC ↗ |
| 90 | Connor, Clark & Lunn Investment… | 229.66K | — | $4.06M | 0.0% | n/c | 1 | SEC ↗ |
| 91 | American Century Companies Inc | 229.48K | — | $4.06M | 0.0% | n/c | 1 | SEC ↗ |
| 92 | Voya Investment Management Llc | 217.07K | — | $3.84M | 0.0% | n/c | 1 | SEC ↗ |
| 93 | Voya Investment Management Llc | 217.07K | — | $3.84M | 0.0% | n/c | 1 | SEC ↗ |
| 94 | Voya Investment Management Llc | 217.07K | — | $3.84M | 0.0% | n/c | 1 | SEC ↗ |
| 95 | JPMorgan Chase ✦ | 217.00K | -71.5% | $3.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 96 | JPMorgan Chase ✦ | 217.00K | -71.5% | $3.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 97 | JPMorgan Chase ✦ | 217.00K | -71.5% | $3.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 98 | JPMorgan Chase ✦ | 217.00K | -71.5% | $3.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 99 | JPMorgan Chase ✦ | 217.00K | -71.5% | $3.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 100 | JPMorgan Chase ✦ | 217.00K | -71.5% | $3.84M | 0.0% | ▼ Trim | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Marshall Wace | $3.18M | was 0.0% |
| D. E. Shaw & Co. | $258,492 | 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: Q4 2025 ·
Methodology ·
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