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 | 110 | +13 | 56.91M | $2.09B | +19 | −6 |
| 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 | n/a |
| Q1 2025 | 14 | -1 | 13.16M | $215.02M | n/a | −1 |
| Q4 2024 | 15 | +3 | 11.15M | $205.16M | +3 | n/a |
| Q3 2024 | 11 | 0 | 6.53M | $94.30M | +1 | −1 |
| Q2 2024 | 11 | n/a | 7.34M | $101.70M | n/a | n/a |
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 ↗ ×14 |
| 2 | Vanguard Capital Management Llc | 3.12M | n/a | $72.16M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | State Street Global Advisors ✦ (passive) | 3.09M | -0.8% | $71.45M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 4 | Wellington Management ✦ | 2.07M | +2.7% | $47.96M | 0.0% | ▲ Add | 6 | SEC ↗ ×6 |
| 5 | Barclays Plc | 1.87M | +1.8% | $43.34M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 6 | Renaissance Technologies ✦ | 1.78M | -16.4% | $41.27M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 7 | First Trust Advisors Lp | 1.72M | -30.2% | $39.76M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | Geode Capital Management ✦ (passive) | 1.72M | -3.4% | $39.71M | 0.0% | ▼ Trim | 8 | SEC ↗ ×2 |
| 9 | Dimensional Fund Advisors Lp | 1.64M | -0.8% | $37.82M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 10 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 1.56M | +7.4% | $35.97M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 11 | Arrowstreet Capital ✦ | 1.50M | +36.7% | $34.61M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 12 | Two Sigma Investments ✦ | 1.32M | +79.9% | $30.52M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 13 | Goldman Sachs Group ✦ | 1.19M | +14.7% | $27.44M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 14 | T. Rowe Price ✦ | 1.07M | -30.2% | $24.80M | 0.0% | ▼ Trim | 8 | SEC ↗ ×2 |
| 15 | Prudential Financial Inc | 885.21K | +1105.9% | $20.47M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 16 | Boston Partners | 815.79K | -2.9% | $19.00M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 17 | Morgan Stanley ✦ | 813.09K | +1.1% | $18.80M | 0.0% | ▲ Add | 3 | SEC ↗ ×9 |
| 18 | Charles Schwab Investment… | 743.97K | +2.1% | $17.20M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 19 | Northern Trust Corp | 704.40K | +2.4% | $16.29M | 0.0% | ▲ Add | 2 | SEC ↗ ×6 |
| 20 | Bank of New York Mellon Corp | 660.64K | -0.8% | $15.27M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 21 | Jane Street Group, Llc | 595.95K | New | $13.78M | 0.0% | New | 1 | SEC ↗ ×3 |
| 22 | Royal Bank Of Canada | 536.46K | +9899.3% | $12.40M | 0.0% | ▲ Add | 2 | SEC ↗ ×7 |
| 23 | Citadel Advisors ✦ | 514.02K | +238.1% | $11.88M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 24 | Principal Financial Group Inc | 436.28K | -3.5% | $10.09M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 25 | Millennium Management ✦ | 414.92K | +95.7% | $9.59M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 26 | UBS Group AG | 390.06K | -9.3% | $9.02M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 27 | Russell Investments Group, Ltd. | 389.78K | +1064.4% | $9.01M | 0.0% | ▲ Add | 2 | SEC ↗ ×6 |
| 28 | Bnp Paribas Financial Markets | 389.71K | +84.9% | $9.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | Invesco Ltd. | 362.67K | -56.6% | $8.38M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 30 | Wells Fargo & Company/Mn | 332.53K | +29.8% | $7.69M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 31 | Hrt Financial Lp | 320.38K | New | $7.41M | 0.0% | New | 1 | SEC ↗ |
| 32 | JPMorgan Chase ✦ | 326.65K | +50.5% | $7.30M | 0.0% | ▲ Add | 3 | SEC ↗ ×7 |
| 33 | Man Group plc | 304.44K | +60.0% | $7.04M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 34 | D. E. Shaw & Co. ✦ | 263.39K | New | $6.09M | 0.0% | New | 1 | SEC ↗ |
| 35 | Tudor Investment Corp Et Al | 238.86K | -35.5% | $5.52M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 36 | New York State Common Retirement… | 235.73K | +140.9% | $5.45M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 37 | American Century Companies Inc | 222.37K | -3.1% | $5.14M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 38 | Bank Of America Corp /De/ | 206.67K | +24.9% | $4.78M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 39 | Rhumbline Advisers | 192.11K | +2.8% | $4.44M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 40 | Legal & General Group Plc | 190.62K | -8.4% | $4.41M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 41 | Hsbc Holdings Plc | 175.78K | -42.9% | $4.05M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 42 | Voya Investment Management Llc | 166.48K | -23.3% | $3.85M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 43 | UBS AM, a distinct business unit of… | 161.55K | +17.8% | $3.74M | 0.0% | ▲ Add | 2 | SEC ↗ ×9 |
| 44 | Nuveen, LLC | 158.57K | -1.6% | $3.67M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 45 | Qube Research & Technologies Ltd | 157.55K | -74.7% | $3.64M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 46 | Swiss National Bank | 142.40K | 0.0% | $3.29M | 0.0% | Held | 2 | SEC ↗ |
| 47 | Victory Capital Management Inc | 137.35K | -17.3% | $3.18M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 48 | Connor, Clark & Lunn Investment… | 136.35K | -40.6% | $3.15M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 49 | State Board Of Administration Of… | 129.61K | -0.9% | $3.00M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 50 | Creative Planning | 127.27K | +84.6% | $2.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 51 | Ameriprise Financial Inc | 123.54K | -6.5% | $2.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 52 | Sei Investments Co | 121.24K | -1.7% | $2.80M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 53 | Truist Financial Corp | 115.02K | 0.0% | $2.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 54 | Susquehanna International Group, Llp | 108.22K | +116.4% | $2.50M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 55 | Federated Hermes, Inc. | 106.27K | -0.1% | $2.46M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 56 | Franklin Resources Inc | 104.00K | +1.6% | $2.40M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 57 | Healthcare Of Ontario Pension Plan… | 98.91K | +53.7% | $2.29M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 58 | California State Teachers… | 91.45K | +36.6% | $2.11M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 59 | Universal- Beteiligungs- und… | 90.22K | -40.0% | $2.09M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 60 | Janus Henderson Group Plc | 87.50K | +171.1% | $2.02M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 61 | Deutsche Bank Ag\ | 80.53K | +9.9% | $1.86M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 62 | Canada Pension Plan Investment Board | 78.30K | -4.5% | $1.81M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 63 | Fisher Asset Management ✦ | 74.89K | +0.4% | $1.73M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 64 | Allianz Asset Management GmbH | 65.95K | -1.7% | $1.52M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 65 | Allspring Global Investments… | 55.22K | +11.4% | $1.33M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 66 | Alliancebernstein L.P. | 72.56K | +4.3% | $1.28M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 67 | Quantinno Capital Management LP | 55.03K | +151.3% | $1.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 68 | AQR Capital Management ✦ | 49.85K | +29.1% | $1.15M | 0.0% | ▲ Add | 8 | SEC ↗ ×5 |
| 69 | Squarepoint Ops LLC | 45.86K | New | $1.06M | 0.0% | New | 1 | SEC ↗ |
| 70 | Citigroup Inc | 45.74K | -29.7% | $1.06M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 71 | Mackenzie Financial Corp | 44.13K | -56.0% | $1.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 72 | GAMCO Investors ✦ | 42.75K | 0.0% | $988,380 | 0.0% | Held | 8 | SEC ↗ |
| 73 | Amundi | 40.42K | +6.7% | $934,418 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 74 | Zurcher Kantonalbank (Zurich… | 39.54K | +24.6% | $914,165 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 75 | Raymond James Financial Inc | 37.85K | -47.0% | $875,069 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 76 | Tidal Investments LLC | 33.99K | +14.2% | $785,826 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 77 | Manufacturers Life Insurance… | 29.50K | -4.1% | $682,063 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 78 | Fidelity (FMR) ✦ | 28.11K | +68.1% | $649,802 | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 79 | Mirae Asset Global Investments Co.… | 27.42K | +16.5% | $633,997 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 80 | DZ BANK AG Deutsche Zentral… | 24.98K | -82.2% | $577,606 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 81 | Captrust Financial Advisors | 20.27K | New | $468,717 | 0.0% | New | 1 | SEC ↗ |
| 82 | Gotham Asset Management ✦ | 19.88K | -42.5% | $459,672 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 83 | Pacer Advisors, Inc. | 18.41K | +35.5% | $426,000 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 84 | Lazard Asset Management Llc | 17.99K | -36.1% | $415,998 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 85 | Fifth Third Bancorp | 17.08K | +3005.6% | $394,919 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 86 | Commonwealth Equity Services, Llc | 14.76K | -42.3% | $341,320 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 87 | Neuberger Berman Group LLC | 14.51K | New | $335,519 | 0.0% | New | 1 | SEC ↗ ×2 |
| 88 | BNP Paribas Asset Management… | 12.08K | +4.3% | $279,243 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 89 | Us Bancorp \De\ | 11.99K | +0.3% | $277,163 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 90 | Simplex Trading, Llc | 11.72K | +643.5% | $270,897 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 91 | ProShare Advisors LLC | 11.19K | -20.0% | $258,667 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 92 | Pictet Asset Management Holding SA | 10.29K | New | $237,905 | 0.0% | New | 1 | SEC ↗ |
| 93 | Osaic Holdings, Inc. | 4.30K | +508.5% | $99,461 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 94 | Pnc Financial Services Group, Inc. | 3.94K | +14.1% | $91,048 | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 95 | Rockefeller Capital Management L.P. | 3.83K | +292.1% | $88,480 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 96 | Cwm, Llc | 3.25K | +7.0% | $75,059 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 97 | Group One Trading Llc | 2.05K | New | $47,396 | 0.0% | New | 1 | SEC ↗ |
| 98 | Northwestern Mutual Wealth… | 728 | 0.0% | $16,831 | 0.0% | Held | 2 | SEC ↗ |
| 99 | Jones Financial Companies Lllp | 668 | 0.0% | $14,923 | 0.0% | Held | 2 | SEC ↗ |
| 100 | Assetmark, Inc | 220 | +34.1% | $5,086 | 0.0% | ▲ Add | 2 | 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% |
| Hrt Financial Lp | $7.41M | 0.0% |
| D. E. Shaw & Co. | $6.09M | 0.0% |
| Squarepoint Ops LLC | $1.06M | 0.0% |
| Captrust Financial Advisors | $468,717 | 0.0% |
| Neuberger Berman Group LLC | $335,519 | 0.0% |
| Pictet Asset Management… | $237,905 | 0.0% |
| Group One Trading Llc | $47,396 | 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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