A10 NetworksATEN
13F holders, Q4 2025 (December 31)242holders +6
32new positions
28sold out
8famous investors
$17.69avg. 13F price*
At the end of Q4 2025, 242 institutions reported holding A10 Networks Inc. (ATEN) in their 13F filings, up 6 from Q3 2025. 32 opened new positions and 28 sold out. The largest holders were BlackRock, Inc. ($229.7M), Vanguard Group Inc. ($128.1M) and Penserra Capital Management LLC ($75.4M). 8 famous investors held it, including Jim Simons / Peter Brown (0.1% of Renaissance Technologies's portfolio), Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and Mario Gabelli (0.0% of GAMCO Investors's portfolio).
- Company
- A10 Networks Inc.
- CUSIP
- 002121101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 32 | $28.6M |
| Exits | 28 | $24.5M |
All 13F filers, Q3 2025 → Q4 2025: 4,951,745 shares bought and 5,405,193 shares sold, net −453,448 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 242 holders
| BlackRock, Inc. | 0.00% | Reduce -0.6% | 12,985,049 | $229.7M |
| Vanguard Group Inc. | 0.00% | Add +0.1% | 7,241,762 | $128.1M |
| Penserra Capital Management LLC | 0.90% | Add +16.4% | 4,260,259 | $75.4M |
| State Street Corp. | 0.00% | Reduce -5.2% | 3,116,155 | $55.1M |
| First Trust Advisors LP | 0.03% | Add +21.1% | 2,463,337 | $43.6M |
| Boston Trust Walden Corp | 0.33% | Reduce -7.5% | 2,440,649 | $43.2M |
| Renaissance Technologies | 0.06% | Reduce -10.6% | 2,134,734 | $37.8M |
| Wellington Management Group LLP | 0.01% | Reduce -1.7% | 2,020,067 | $35.7M |
| Barclays PLC | 0.01% | Add +34.9% | 1,841,906 | $32.6M |
| Geode Capital Management, LLC | 0.00% | Add +0.6% | 1,777,631 | $31.5M |
| Dimensional Fund Advisors LP | 0.01% | Add +0.9% | 1,648,788 | $29.2M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -2.3% | 1,536,628 | $27.2M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.04% | Reduce -46.3% | 1,448,929 | $25.6M |
| Punch & Associates Investment Management, Inc. | 1.50% | Add +0.3% | 1,435,626 | $25.4M |
| Arrowstreet Capital, Limited Partnership | 0.01% | Reduce -10.7% | 1,095,287 | $19.4M |
| Goldman Sachs Group Inc. | 0.00% | Add +66.8% | 1,034,491 | $18.3M |
| Boston Partners | 0.02% | New | 840,140 | $14.8M |
| Invesco Ltd. | 0.00% | Add +12.8% | 836,178 | $14.8M |
| Morgan Stanley | 0.00% | Add +6.5% | 804,350 | $14.2M |
| Two Sigma Investments, LP | 0.02% | Add +7.4% | 733,734 | $13.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +2.7% | 728,568 | $12.9M |
| Royce & Associates LP | 0.13% | Add +4.7% | 727,410 | $12.9M |
| Northern Trust Corp. | 0.00% | Reduce -5.5% | 687,726 | $12.2M |
| Bank of New York Mellon Corp | 0.00% | Reduce -7.2% | 665,653 | $11.8M |
| Qube Research & Technologies Ltd | 0.02% | Add +10.5% | 622,666 | $11.0M |
| Defiance ETFs, LLC | 0.33% | — | 560,330 | $10.0M |
| Two Sigma Advisers, LP | 0.02% | Add +4.5% | 474,000 | $8.4M |
| Principal Financial Group Inc. | 0.00% | Add +7.3% | 452,246 | $8.0M |
| Aptus Capital Advisors, LLC | 0.07% | Add +0.4% | 450,385 | $8.0M |
| UBS Group AG | 0.00% | Reduce -29.0% | 430,199 | $7.6M |
| Paradigm Capital Management Inc. | 0.30% | Reduce -1.4% | 401,400 | $7.1M |
| Bridge City Capital, LLC | 1.97% | Reduce -9.6% | 379,342 | $6.7M |
| Tudor Investment Corporation | 0.04% | Add +16.0% | 370,444 | $6.6M |
| Impax Asset Management Group plc | 0.04% | No change | 360,000 | $6.4M |
| Rice Hall James & Associates, LLC | 0.31% | Add +15.6% | 316,512 | $5.6M |
| Crawford Investment Counsel Inc. | 0.09% | Add +5.6% | 302,992 | $5.4M |
| Alyeska Investment Group, L.P. | 0.01% | New | 272,093 | $4.8M |
| Wells Fargo & Company | 0.00% | Add +34.6% | 256,125 | $4.5M |
| Public Sector Pension Investment Board | 0.01% | Reduce -11.8% | 248,213 | $4.4M |
| Peregrine Capital Management LLC | 0.13% | Reduce -4.7% | 240,813 | $4.3M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Reduce -14.6% | 229,660 | $4.1M |
| American Century Companies Inc. | 0.00% | Reduce -6.5% | 229,477 | $4.1M |
| Harbor Capital Advisors, Inc. | 0.30% | Reduce -8.7% | 217,512 | $3.8M |
| Voya Investment Management LLC | 0.00% | Reduce -12.6% | 217,066 | $3.8M |
| JPMorgan Chase & Co. | 0.00% | Reduce -42.9% | 216,998 | $3.8M |
| Millennium Management | 0.00% | Add +46.4% | 212,072 | $3.8M |
| BNP Paribas Financial Markets | 0.00% | Add +35.8% | 210,748 | $3.7M |
| Legal & General Group Plc | 0.00% | Reduce -3.0% | 208,063 | $3.7M |
| Man Group plc | 0.01% | Reduce -8.0% | 190,333 | $3.4M |
| Summit Partners L P | 0.32% | No change | 187,367 | $3.3M |
| Rhumbline Advisers | 0.00% | Reduce -7.5% | 186,899 | $3.3M |
| Trexquant Investment LP | 0.03% | Add +31.3% | 175,738 | $3.1M |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 0.21% | Reduce -26.3% | 175,493 | $3.1M |
| Bessemer Group Inc. | 0.00% | Add +45438.0% | 171,223 | $3.0M |
| Victory Capital Management Inc. | 0.00% | Reduce -64.5% | 166,049 | $2.9M |
| Bank of America Corp. | 0.00% | Reduce -16.6% | 165,473 | $2.9M |
| AlphaQuest LLC | 0.16% | Add +967.4% | 162,685 | $2.9M |
| Nuveen, LLC | 0.00% | Reduce -2.0% | 161,132 | $2.9M |
| HSBC Holdings PLC | 0.00% | Add +84.3% | 153,816 | $2.7M |
| Citadel Advisors | 0.00% | Reduce -56.7% | 152,016 | $2.7M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | Add +2.2% | 150,466 | $2.7M |
| Banque Cantonale Vaudoise | 0.09% | Reduce -1.5% | 144,612 | $2.6M |
| Swiss National Bank | 0.00% | Add +1.9% | 142,400 | $2.5M |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0.00% | No change | 140,666 | $2.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +0.6% | 137,148 | $2.4M |
| Hillsdale Investment Management Inc. | 0.07% | Reduce -22.7% | 133,461 | $2.4M |
| Ameriprise Financial Inc. | 0.00% | Reduce -6.9% | 132,184 | $2.3M |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 130,741 | $2.3M |
| Sei Investments Co. | 0.00% | Reduce -2.3% | 123,356 | $2.2M |
| Wedge Capital Management L L P | 0.04% | Add +1.6% | 120,897 | $2.1M |
| Truist Financial Corp. | 0.00% | Add +23.5% | 114,988 | $2.0M |
| Federated Hermes, Inc. | 0.00% | Add +130.4% | 106,382 | $1.9M |
| Hennion & Walsh Asset Management, Inc. | 0.06% | Add +55.5% | 102,919 | $1.8M |
| Franklin Resources Inc. | 0.00% | Reduce -33.1% | 102,357 | $1.8M |
| Mackenzie Financial Corp. | 0.00% | Reduce -2.3% | 100,271 | $1.8M |
| Martingale Asset Management L P | 0.05% | Reduce -0.8% | 100,510 | $1.8M |
| October Effect Ltd | 1.96% | Reduce -34.6% | 100,437 | $1.8M |
| New York State Common Retirement Fund | 0.00% | No change | 97,845 | $1.7M |
| Teacher Retirement System of Texas | 0.01% | Reduce -0.3% | 96,576 | $1.7M |
| Verity Asset Management, Inc. | 0.70% | Add +0.6% | 91,956 | $1.6M |
| Canada Pension Plan Investment Board | 0.00% | Reduce -3.9% | 82,000 | $1.5M |
| Legato Capital Management LLC | 0.12% | Add +5.9% | 80,115 | $1.4M |
| Fisher Asset Management | 0.00% | Add +7.0% | 74,557 | $1.3M |
| Dark Forest Capital Management LP | 0.06% | New | 74,366 | $1.3M |
| Prudential Financial Inc. | 0.00% | Reduce -60.6% | 73,408 | $1.3M |
| Deutsche Bank AG | 0.00% | Add +2.6% | 73,288 | $1.3M |
| Cresset Asset Management, LLC | 0.01% | Add +0.1% | 72,409 | $1.3M |
| WINTON GROUP Ltd | 0.04% | Add +1.1% | 71,527 | $1.3M |
| Raymond James Financial Inc. | 0.00% | Add +65.9% | 71,399 | $1.3M |
| Alliancebernstein L.P. | 0.00% | Reduce -0.2% | 69,571 | $1.2M |
| KLP Kapitalforvaltning As | 0.00% | Add +1.5% | 69,500 | $1.2M |
| Creative Planning | 0.00% | Add +54.0% | 68,949 | $1.2M |
| Summit Global Investments | 0.07% | Reduce -1.7% | 67,550 | $1.2M |
| Allianz Asset Management GmbH | 0.00% | No change | 67,115 | $1.2M |
| California State Teachers Retirement System | 0.00% | Reduce -16.4% | 66,962 | $1.2M |
| Globeflex Capital L P | 0.18% | No change | 65,303 | $1.2M |
| Citigroup Inc. | 0.00% | Reduce -19.1% | 65,064 | $1.2M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.00% | New | 64,356 | $1.1M |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -21.6% | 62,945 | $1.1M |
| Voloridge Investment Management, LLC | 0.00% | Reduce -49.9% | 61,162 | $1.1M |
| Brooklyn Investment Group | 0.05% | New | 54,854 | $990K |
| Comerica Bank | 0.00% | Reduce -6.0% | 53,103 | $939K |
| Nilsine Partners, LLC | 0.08% | Add +3.6% | 52,393 | $927K |
| SG Americas Securities, LLC | 0.00% | Reduce -16.0% | 51,448 | $910K |
| Susquehanna International Group, LLP | 0.00% | Reduce -24.6% | 50,013 | $885K |
| Thrivent Financial for Lutherans | 0.00% | Reduce -5.3% | 49,286 | $872K |
| Allspring Global Investments Holdings, LLC | 0.00% | Add +9.6% | 49,547 | $860K |
| State of Alaska, Department of Revenue | 0.01% | Add +22.2% | 48,292 | $853K |
| QSV Equity Investors LLC | 1.15% | Reduce -32.9% | 43,965 | $778K |
| XTX Topco Ltd | 0.02% | New | 43,477 | $769K |
| GAMCO Investors | 0.01% | Add +1.8% | 42,750 | $756K |
| Illumine Investment Management, LLC | 0.55% | Add +5.5% | 42,697 | $755K |
| Verition Fund Management LLC | 0.00% | New | 41,948 | $742K |
| Engineers Gate Manager LP | 0.01% | Add +2.7% | 39,850 | $705K |
| MetLife Investment Management, LLC | 0.00% | Reduce -6.3% | 39,202 | $693K |
| AQR Capital Management | 0.00% | Reduce -9.1% | 38,606 | $683K |
| Amundi | 0.00% | Reduce -17.8% | 37,884 | $670K |
| Teton Advisors, LLC | 0.44% | No change | 36,000 | $637K |
| Illinois Municipal Retirement Fund | 0.01% | Reduce -6.0% | 35,848 | $634K |
| PDT Partners, LLC | 0.04% | New | 35,472 | $628K |
| Horizon Investments, LLC | 0.01% | New | 35,100 | $621K |
| Gotham Asset Management | 0.00% | Reduce -13.9% | 34,574 | $612K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -0.4% | 33,475 | $592K |
| Gsa Capital Partners LLP | 0.05% | New | 33,332 | $590K |
| Louisiana State Employees Retirement System | 0.01% | Reduce -0.9% | 32,900 | $582K |
| Janus Henderson Group PLC | 0.00% | No change | 32,278 | $571K |
| Quantbot Technologies LP | 0.02% | Reduce -4.2% | 31,910 | $564K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +19.2% | 31,734 | $561K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -8.1% | 30,762 | $544K |
| Evergreen Capital Management LLC | 0.01% | New | 29,762 | $526K |
| Tidal Investments LLC | 0.00% | Reduce -53.1% | 29,754 | $526K |
| Intech Investment Management LLC | 0.00% | Reduce -26.5% | 28,966 | $512K |
| Lazard Asset Management LLC | 0.00% | Reduce -9.5% | 28,162 | $498K |
| Round Rock Advisors LLC | 0.07% | Add +54.4% | 27,353 | $484K |
| Alps Advisors Inc. | 0.00% | Add +0.8% | 26,355 | $466K |
| Norges Bank | 0.00% | — | 26,272 | $465K |
| Commonwealth Equity Services, LLC | 0.00% | Add +1.9% | 25,569 | $452K |
| Optimize Financial Inc. | 0.21% | No change | 23,700 | $419K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | Reduce -44.7% | 23,543 | $416K |
| Quantinno Capital Management LP | 0.00% | Add +25.9% | 21,893 | $387K |
| Dynamic Technology Lab Private Ltd | 0.09% | New | 21,347 | $378K |
| Amalgamated Bank | 0.00% | Reduce -0.9% | 20,986 | $371K |
| Boothbay Fund Management, LLC | 0.01% | New | 20,209 | $357K |
| Arizona State Retirement System | 0.00% | Reduce -6.1% | 20,032 | $354K |
| Meritage Portfolio Management | 0.02% | Reduce -18.0% | 19,977 | $353K |
| 1492 Capital Management LLC | 0.14% | Add +90.3% | 19,782 | $350K |
| Seizert Capital Partners, LLC | 0.01% | No change | 19,747 | $349K |
| Integrated Quantitative Investments LLC | 0.07% | Add +11.0% | 19,536 | $346K |
| Yousif Capital Management, LLC | 0.00% | Reduce -13.3% | 19,214 | $326K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | Reduce -10.0% | 18,341 | $324K |
| Teachers Retirement System of the State of Kentucky | 0.00% | Reduce -12.1% | 17,891 | $317K |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.00% | Reduce -3.4% | 17,757 | $314K |
| New York State Teachers Retirement System | 0.00% | Reduce -46.3% | 17,255 | $305K |
| FMR LLC | 0.00% | Add +67.1% | 16,716 | $296K |
| Oregon Public Employees Retirement Fund | 0.00% | Add +1.2% | 16,418 | $290K |
| State of Tennessee, Department of Treasury | 0.00% | Reduce -50.1% | 16,586 | $289K |
| Counterpoint Mutual Funds LLC | 0.02% | New | 16,156 | $286K |
| Linden Thomas Advisory Services, LLC | 0.03% | Add +0.7% | 14,523 | $257K |
| Gallacher Capital Management LLC | 0.10% | Reduce -9.7% | 14,308 | $253K |
| Pinnacle Financial Partners, Inc. | 0.00% | — | 14,251 | $252K |
| ProShare Advisors LLC | 0.00% | Add +3.2% | 13,983 | $247K |
| Pacer Advisors, Inc. | 0.00% | Add +46.4% | 13,592 | $240K |
| Mirabella Financial Services LLP | 0.02% | New | 12,006 | $212K |
| US Bancorp \de | 0.00% | No change | 11,954 | $211K |
| Pathstone Holdings, LLC | 0.00% | Reduce -55.5% | 11,899 | $210K |
| FourThought Financial Partners, LLC | 0.02% | Reduce -10.6% | 11,591 | $205K |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.00% | Add +1129.1% | 11,578 | $204K |
| Hohimer Wealth Management, LLC | 0.03% | Reduce -5.0% | 11,381 | $201K |
| Cim Investment Management Inc. | 0.05% | No change | 10,771 | $191K |
| Maryland State Retirement & Pension System | 0.00% | No change | 10,502 | $186K |
| Sawgrass Asset Management LLC | 0.02% | Reduce -8.1% | 10,483 | $185K |
| LSV Asset Management | 0.00% | No change | 10,400 | $184K |
| Graham Capital Management, L.P. | 0.01% | New | 10,054 | $178K |
| Gabelli Funds LLC | 0.00% | New | 10,000 | $177K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +195.1% | 6,888 | $122K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 6,009 | $106K |
| Royal Bank of Canada | 0.00% | Reduce -86.1% | 5,365 | $95K |
| Hantz Financial Services, Inc. | 0.00% | Add +943.7% | 5,020 | $89K |
| GAMMA Investing LLC | 0.00% | Add +42.0% | 4,411 | $78K |
| Leonteq Securities AG | 0.00% | Reduce -12.8% | 4,367 | $77K |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -1.3% | 3,450 | $61K |
| KBC Group NV | 0.00% | No change | 3,197 | $57K |
| Cwm, LLC | 0.00% | Reduce -16.6% | 3,034 | $54K |
| Vestcor Inc | 0.00% | Reduce -56.8% | 2,709 | $48K |
| Clearstead Advisors, LLC | 0.00% | Add +2829.4% | 2,490 | $44K |
| Parkside Financial Bank & Trust | 0.00% | Add +4621.6% | 2,408 | $43K |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 0.01% | Reduce -17.9% | 2,300 | $41K |
| Natixis | 0.00% | Reduce -4.9% | 2,271 | $40K |
| Farther Finance Advisors, LLC | 0.00% | Add +92.4% | 2,255 | $40K |
| CIBC Private Wealth Group LLC | 0.00% | Add +4.8% | 1,666 | $29K |
| MassMutual Private Wealth & Trust, FSB | 0.00% | Add +0.1% | 1,601 | $28K |
| Simplex Trading, LLC | 0.00% | New | 1,576 | $28K |
| Huntington National Bank | 0.00% | Add +21.1% | 1,529 | $27K |
| Aster Capital Management (DIFC) Ltd | 0.01% | New | 1,474 | $26K |
| Nisa Investment Advisors, LLC | 0.00% | Add +7.6% | 1,415 | $25K |
| Salomon & Ludwin, LLC | 0.00% | Add +147.3% | 1,266 | $22K |
| Signaturefd, LLC | 0.00% | Reduce -27.3% | 1,226 | $22K |
| Sterling Capital Management LLC | 0.00% | Add +15.1% | 1,031 | $18K |
| Rockefeller Capital Management L.P. | 0.00% | Add +53.9% | 976 | $17K |
| Quadrant Capital Group LLC | 0.00% | No change | 873 | $15K |
| MPWM Advisory Solutions, LLC | 0.01% | New | 806 | $14K |
| Steigerwald, Gordon & Koch Inc. | 0.00% | No change | 800 | $14K |
| Smartleaf Asset Management LLC | 0.00% | No change | 732 | $13K |
| Northwestern Mutual Wealth Management Co. | 0.00% | No change | 728 | $13K |
| Osaic Holdings, Inc. | 0.00% | Add +560.8% | 707 | $13K |
| Jones Financial Companies LLLP | 0.00% | Reduce -57.2% | 668 | $12K |
| Plante Moran Financial Advisors, LLC | 0.00% | New | 665 | $12K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -13.6% | 643 | $11K |
| Fifth Third Bancorp | 0.00% | Add +3.2% | 550 | $10K |
| UMB Bank, n.a. | 0.00% | Add +4.6% | 501 | $9K |
| Covestor Ltd | 0.00% | Add +3.4% | 452 | $8K |
| Danske Bank A/S | 0.00% | No change | 400 | $7K |
| WealthCollab, LLC | 0.00% | No change | 390 | $7K |
| MAI Capital Management | 0.00% | Add +0.3% | 345 | $6K |
| Los Angeles Capital Management LLC | 0.00% | New | 327 | $6K |
| Pinnacle Wealth Planning Services, Inc. | 0.00% | New | 298 | $5K |
| Sound Income Strategies, LLC | 0.00% | New | 264 | $5K |
| Allworth Financial LP | 0.00% | Add +53.3% | 236 | $4K |
| First Pacific Financial | 0.00% | New | 229 | $4K |
| Marquette Asset Management, LLC | 0.00% | Add +11.3% | 217 | $4K |
| Aventura Private Wealth, LLC | 0.00% | New | 200 | $4K |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -52.7% | 187 | $3K |
| Arax Advisory Partners | 0.00% | Reduce -62.0% | 185 | $3K |
| Assetmark, Inc. | 0.00% | Add +6.5% | 164 | $3K |
| Parallel Advisors, LLC | 0.00% | Add +29.1% | 133 | $2K |
| Private Wealth Management Group, LLC | 0.00% | No change | 112 | $2K |
| Safe Harbor Fiduciary, LLC | 0.00% | — | 100 | $2K |
| Toth Financial Advisory Corp. | 0.00% | No change | 100 | $2K |
| Federation des caisses Desjardins du Quebec | 0.00% | No change | 100 | $2K |
| Rothschild Investment LLC | 0.00% | No change | 90 | $2K |
| Farmers & Merchants Investments Inc. | 0.00% | No change | 50 | $885 |
| SouthState Bank Corp | 0.00% | No change | 34 | $602 |
| Optima Capital LLC | 0.00% | New | 33 | $584 |
| North Star Investment Management Corp. | 0.00% | New | 30 | $531 |
| Bruce G. Allen Investments, LLC | 0.00% | New | 25 | $442 |
| Essential Partners LLC | 0.00% | No change | 23 | $407 |
| Ankerstar Wealth, LLC | 0.00% | — | 19 | $336 |
| Versant Capital Management, Inc | 0.00% | Reduce -86.2% | 15 | $265 |
| ROSS\JOHNSON & Associates LLC | 0.00% | New | 10 | $177 |
| Flagship Harbor Advisors, LLC | 0.00% | New | 9 | $160 |
| Gilpin Wealth Management, LLC | 0.00% | — | 6 | $107 |
| Avion Wealth | 0.00% | New | 30 | $0 |
"% of holder's portfolio" is ATEN's weight in each manager's 13F, not the share of A10 Networks Inc. the manager owns.