Security record
ATEN
A10 Networks, Inc. · Technology · Software - Infrastructure
111Tracked holders
+13Δ holders
56.95MShares 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 | 56.95M | $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 ↗ ×13 |
| 2 | First Trust Advisors Lp | 3.24M | +88.7% | $121.22M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 3 | State Street Global Advisors ✦ (passive) | 3.08M | -0.2% | $115.17M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 4 | Vanguard Capital Management Llc | 3.07M | -1.6% | $114.74M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | Wellington Management ✦ | 1.96M | -5.5% | $73.22M | 0.0% | ▼ Trim | 7 | SEC ↗ ×6 |
| 6 | Geode Capital Management ✦ (passive) | 1.81M | +5.6% | $67.77M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 7 | Goldman Sachs Group ✦ | 1.78M | +50.4% | $66.69M | 0.0% | ▲ Add | 4 | SEC ↗ ×3 |
| 8 | Dimensional Fund Advisors Lp | 1.60M | -2.2% | $59.74M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 9 | Renaissance Technologies ✦ | 1.52M | -14.8% | $56.80M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 10 | Arrowstreet Capital ✦ | 1.44M | -4.0% | $53.71M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 11 | Fidelity (FMR) ✦ | 1.43M | +5001.7% | $53.57M | 0.0% | ▲ Add | 5 | SEC ↗ ×5 |
| 12 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 1.43M | -8.3% | $53.27M | 0.1% | ▼ Trim | 3 | SEC ↗ ×2 |
| 13 | Invesco Ltd. | 1.24M | +242.8% | $46.44M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 14 | Two Sigma Investments ✦ | 1.12M | -14.8% | $42.03M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 15 | Prudential Financial Inc | 1.05M | +18.4% | $39.17M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 16 | Barclays Plc | 962.38K | -48.7% | $35.95M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 17 | Morgan Stanley ✦ | 908.08K | +11.7% | $33.93M | 0.0% | ▲ Add | 4 | SEC ↗ ×13 |
| 18 | Nomura Asset Management… | 896.52K | New | $33.49M | 0.1% | New | 1 | SEC ↗ |
| 19 | T. Rowe Price ✦ | 894.40K | -16.6% | $33.42M | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 20 | Loomis Sayles & Co L P | 884.02K | New | $33.03M | 0.0% | New | 1 | SEC ↗ ×2 |
| 21 | Boston Partners | 802.47K | -1.6% | $30.02M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 22 | Charles Schwab Investment… | 761.68K | +2.4% | $28.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 23 | Northern Trust Corp | 756.48K | +7.4% | $28.26M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 24 | UBS Group AG | 736.55K | +88.8% | $27.52M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 25 | Bank of New York Mellon Corp | 1.56M | +136.1% | $26.10M | 0.0% | ▲ Add | 3 | SEC ↗ ×8 |
| 26 | Bnp Paribas Financial Markets | 573.16K | +47.1% | $21.41M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 27 | D. E. Shaw & Co. ✦ | 547.58K | +107.9% | $20.46M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 28 | Royal Bank Of Canada | 463.00K | -13.7% | $17.30M | 0.0% | ▼ Trim | 3 | SEC ↗ ×8 |
| 29 | Bank Of America Corp /De/ | 461.39K | +123.2% | $17.24M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 30 | Principal Financial Group Inc | 446.42K | +2.3% | $16.68M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 31 | Wells Fargo & Company/Mn | 329.53K | -0.9% | $12.31M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 32 | JPMorgan Chase ✦ | 283.31K | -13.3% | $10.41M | 0.0% | ▼ Trim | 4 | SEC ↗ ×7 |
| 33 | Envestnet Asset Management Inc | 247.90K | New | $9.26M | 0.0% | New | 1 | SEC ↗ |
| 34 | Nuveen, LLC | 236.61K | +49.2% | $8.84M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 35 | American Century Companies Inc | 234.38K | +5.4% | $8.76M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 36 | Legal & General Group Plc | 189.45K | -0.6% | $7.08M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 37 | Connor, Clark & Lunn Investment… | 178.81K | +31.1% | $6.68M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 38 | Millennium Management ✦ | 175.58K | -57.7% | $6.56M | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 39 | Rhumbline Advisers | 172.17K | -10.4% | $6.43M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 40 | Ameriprise Financial Inc | 168.62K | +36.5% | $6.30M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 41 | UBS AM, a distinct business unit of… | 159.22K | -1.4% | $5.95M | 0.0% | ▼ Trim | 3 | SEC ↗ ×8 |
| 42 | Sei Investments Co | 151.68K | +25.1% | $5.67M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 43 | Creative Planning | 149.62K | +17.6% | $5.59M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 44 | Voya Investment Management Llc | 143.42K | -13.8% | $5.36M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 45 | Truist Financial Corp | 138.30K | +20.2% | $5.17M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 46 | Credit Agricole S A | 138.00K | New | $5.16M | 0.0% | New | 1 | SEC ↗ |
| 47 | Swiss National Bank | 136.70K | -4.0% | $5.11M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 48 | Russell Investments Group, Ltd. | 134.99K | -65.4% | $5.04M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 49 | Citigroup Inc | 128.37K | +180.6% | $4.80M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 50 | Victory Capital Management Inc | 122.94K | -10.5% | $4.59M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 51 | Tudor Investment Corp Et Al | 120.26K | -49.6% | $4.49M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 52 | State Board Of Administration Of… | 114.82K | -11.4% | $4.29M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 53 | Federated Hermes, Inc. | 114.42K | +7.7% | $4.27M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 54 | Universal- Beteiligungs- und… | 104.71K | +16.1% | $3.91M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 55 | Franklin Resources Inc | 99.73K | -4.1% | $3.73M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 56 | Hsbc Holdings Plc | 94.44K | -46.3% | $3.53M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 57 | Jane Street Group, Llc | 93.88K | -84.2% | $3.51M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 58 | Citadel Advisors ✦ | 93.24K | -81.9% | $3.48M | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 59 | Deutsche Bank Ag\ | 87.10K | +8.2% | $3.25M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 60 | AQR Capital Management ✦ | 83.21K | +66.9% | $3.11M | 0.0% | ▲ Add | 9 | SEC ↗ ×5 |
| 61 | New York State Common Retirement… | 81.20K | -65.5% | $3.03M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 62 | Osaic Holdings, Inc. | 80.04K | +1760.6% | $2.99M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 63 | Allianz Asset Management GmbH | 79.53K | +20.6% | $2.97M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 64 | Canada Pension Plan Investment Board | 75.50K | -3.6% | $2.82M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 65 | Quantinno Capital Management LP | 68.40K | +24.3% | $2.56M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 66 | Allspring Global Investments… | 57.07K | +3.4% | $2.17M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 67 | Fisher Asset Management ✦ | 50.15K | -33.0% | $1.87M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 68 | Alliancebernstein L.P. | 79.71K | +9.8% | $1.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 69 | Zurcher Kantonalbank (Zurich… | 47.47K | +20.1% | $1.77M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 70 | Mml Investors Services, Llc | 43.18K | New | $1.61M | 0.0% | New | 1 | SEC ↗ |
| 71 | Simplex Trading, Llc | 41.67K | +255.7% | $1.56M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 72 | Stifel Financial Corp | 40.37K | New | $1.51M | 0.0% | New | 1 | SEC ↗ ×3 |
| 73 | Raymond James Financial Inc | 38.66K | +2.1% | $1.44M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 74 | Amundi | 35.47K | -12.2% | $1.33M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 75 | LPL Financial LLC | 33.81K | New | $1.26M | 0.0% | New | 1 | SEC ↗ |
| 76 | Manufacturers Life Insurance… | 29.96K | +1.6% | $1.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 77 | Mirae Asset Global Investments Co.… | 28.53K | +4.0% | $1.07M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 78 | Group One Trading Llc | 27.83K | +1257.7% | $1.04M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 79 | Norges Bank ✦ (passive) | 26.27K | New | $981,522 | 0.0% | New | 1 | SEC ↗ |
| 80 | Pacer Advisors, Inc. | 25.02K | +35.9% | $935,000 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 81 | DZ BANK AG Deutsche Zentral… | 24.98K | 0.0% | $933,364 | 0.0% | Held | 3 | SEC ↗ |
| 82 | Cetera Investment Advisers | 19.78K | New | $738,938 | 0.0% | New | 1 | SEC ↗ |
| 83 | Gotham Asset Management ✦ | 19.74K | -0.7% | $737,524 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 84 | Captrust Financial Advisors | 18.08K | -10.8% | $675,581 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 85 | Lazard Asset Management Llc | 17.99K | 0.0% | $672,218 | 0.0% | Held | 3 | SEC ↗ ×2 |
| 86 | Fifth Third Bancorp | 16.82K | -1.5% | $628,388 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 87 | GAMCO Investors ✦ | 16.05K | -62.5% | $599,628 | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 88 | CIBC Bancorp USA Inc. | 15.55K | New | $580,835 | 0.0% | New | 1 | SEC ↗ ×3 |
| 89 | Neuberger Berman Group LLC | 14.53K | +0.1% | $542,656 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 90 | Commonwealth Equity Services, Llc | 14.14K | -4.2% | $528,250 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 91 | Susquehanna International Group, Llp | 13.73K | -87.3% | $513,065 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 92 | Tidal Investments LLC | 13.62K | -59.9% | $508,955 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 93 | Qube Research & Technologies Ltd | 12.14K | -92.3% | $453,588 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 94 | Us Bancorp \De\ | 11.91K | -0.7% | $444,883 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 95 | Mercer Global Advisors Inc /Adv | 10.82K | New | $404,374 | 0.0% | New | 1 | SEC ↗ |
| 96 | ProShare Advisors LLC | 10.33K | -7.6% | $386,079 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 97 | Pictet Asset Management Holding SA | 10.29K | 0.0% | $384,434 | 0.0% | Held | 2 | SEC ↗ |
| 98 | State Of Wisconsin Investment Board | 9.14K | New | $341,396 | 0.0% | New | 1 | SEC ↗ |
| 99 | BNP Paribas Asset Management… | 7.04K | -41.7% | $263,051 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 100 | Baird Financial Group, Inc. | 6.73K | New | $251,582 | 0.0% | New | 1 | SEC ↗ ×2 |
“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% |
| Envestnet Asset Management Inc | $9.26M | 0.0% |
| Credit Agricole S A | $5.16M | 0.0% |
| Mml Investors Services, Llc | $1.61M | 0.0% |
| Stifel Financial Corp | $1.51M | 0.0% |
| LPL Financial LLC | $1.26M | 0.0% |
| Norges Bank | $981,522 | 0.0% |
| Cetera Investment Advisers | $738,938 | 0.0% |
| CIBC Bancorp USA Inc. | $580,835 | 0.0% |
| Mercer Global Advisors Inc… | $404,374 | 0.0% |
| State Of Wisconsin Investment… | $341,396 | 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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