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 |
"% of holder's portfolio" is ATEN's weight in each manager's 13F, not the share of A10 Networks Inc. the manager owns.