A10 NetworksATEN
13F holders, Q2 2025 (June 30)229holders −23
22new positions
43sold out
8famous investors
$19.35avg. 13F price*
At the end of Q2 2025, 229 institutions reported holding A10 Networks Inc. (ATEN) in their 13F filings, down 23 from Q1 2025. 22 opened new positions and 43 sold out. The largest holders were BlackRock, Inc. ($256.0M), Vanguard Group Inc. ($141.8M) and Penserra Capital Management LLC ($76.7M). 8 famous investors held it, including Jim Simons / Peter Brown (0.1% of Renaissance Technologies's portfolio), Paul Tudor Jones (0.1% 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 Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 22 | $6.6M |
| Exits | 43 | $25.3M |
All 13F filers, Q1 2025 → Q2 2025: 5,512,318 shares bought and 5,691,324 shares sold, net −179,006 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 229 holders
| BlackRock, Inc. | 0.00% | Reduce -0.9% | 13,229,713 | $256.0M |
| Vanguard Group Inc. | 0.00% | Reduce -0.9% | 7,327,617 | $141.8M |
| Penserra Capital Management LLC | 1.07% | Add +56.1% | 3,964,989 | $76.7M |
| State Street Corp. | 0.00% | Reduce -0.6% | 3,322,653 | $64.3M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.10% | Reduce -0.7% | 2,664,248 | $51.5M |
| Renaissance Technologies | 0.06% | Add +6.1% | 2,499,906 | $48.4M |
| Boston Trust Walden Corp | 0.30% | Add +31.4% | 2,162,796 | $41.9M |
| First Trust Advisors LP | 0.03% | Add +12.4% | 1,949,423 | $37.7M |
| Geode Capital Management, LLC | 0.00% | Add +3.0% | 1,783,557 | $34.5M |
| Dimensional Fund Advisors LP | 0.01% | Reduce -1.3% | 1,714,046 | $33.2M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -0.8% | 1,504,855 | $29.1M |
| Wellington Management Group LLP | 0.01% | Add +29.7% | 1,465,291 | $28.4M |
| Punch & Associates Investment Management, Inc. | 1.67% | Add +1.0% | 1,375,889 | $26.6M |
| Arrowstreet Capital, Limited Partnership | 0.02% | Add +39.2% | 1,306,664 | $25.3M |
| Morgan Stanley | 0.00% | Reduce -29.4% | 1,047,419 | $20.3M |
| Legal & General Group Plc | 0.00% | Add +348.6% | 992,678 | $19.2M |
| Harbor Capital Advisors, Inc. | 0.67% | Add +2.5% | 828,616 | $16.0M |
| Northern Trust Corp. | 0.00% | Reduce -1.4% | 754,896 | $14.6M |
| Bank of New York Mellon Corp | 0.00% | Reduce -12.9% | 733,952 | $14.2M |
| Royce & Associates LP | 0.14% | Add +1.9% | 722,169 | $14.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +4.5% | 705,725 | $13.7M |
| Barclays PLC | 0.01% | Reduce -0.9% | 670,109 | $13.0M |
| Marshall Wace, LLP | 0.01% | Add +5.5% | 617,671 | $12.0M |
| Invesco Ltd. | 0.00% | Reduce -43.0% | 596,078 | $11.5M |
| Two Sigma Investments, LP | 0.02% | Add +16.6% | 573,164 | $11.1M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -33.4% | 556,697 | $10.8M |
| Jacobs Levy Equity Management, Inc. | 0.04% | Reduce -0.8% | 478,513 | $9.3M |
| Two Sigma Advisers, LP | 0.02% | Add +26.7% | 441,297 | $8.5M |
| Bridge City Capital, LLC | 2.27% | Reduce -1.1% | 417,931 | $8.1M |
| Victory Capital Management Inc. | 0.01% | Add +7.7% | 414,974 | $8.0M |
| Principal Financial Group Inc. | 0.00% | Reduce -0.7% | 413,635 | $8.0M |
| Paradigm Capital Management Inc. | 0.39% | Reduce -3.4% | 413,100 | $8.0M |
| Tudor Investment Corporation | 0.06% | Reduce -9.9% | 404,209 | $7.8M |
| UBS Group AG | 0.00% | Add +5.6% | 390,249 | $7.6M |
| Peregrine Capital Management LLC | 0.22% | Reduce -3.2% | 372,366 | $7.2M |
| Impax Asset Management Group plc | 0.04% | No change | 360,000 | $7.0M |
| Rice Hall James & Associates, LLC | 0.35% | Reduce -4.7% | 338,065 | $6.5M |
| Qube Research & Technologies Ltd | 0.01% | Reduce -14.7% | 334,639 | $6.5M |
| Aptus Capital Advisors, LLC | 0.06% | Add +9.8% | 323,692 | $6.3M |
| Algert Global LLC | 0.13% | Reduce -23.0% | 323,575 | $6.3M |
| JPMorgan Chase & Co. | 0.00% | Reduce -26.5% | 319,789 | $6.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +47.8% | 299,479 | $5.8M |
| Prudential Financial Inc. | 0.01% | Reduce -16.5% | 287,389 | $5.6M |
| Voya Investment Management LLC | 0.01% | Add +0.2% | 274,726 | $5.3M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.02% | Add +21.6% | 257,610 | $5.0M |
| Public Sector Pension Investment Board | 0.02% | Add +5.2% | 245,769 | $4.8M |
| Wells Fargo & Company | 0.00% | Add +31.2% | 238,446 | $4.6M |
| American Century Companies Inc. | 0.00% | Add +9.2% | 236,080 | $4.6M |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 0.40% | Add +69.7% | 233,891 | $4.5M |
| Mackenzie Financial Corp. | 0.01% | Add +71.7% | 230,511 | $4.5M |
| Citadel Advisors | 0.00% | Reduce -43.3% | 220,586 | $4.3M |
| Rhumbline Advisers | 0.00% | Add +5.7% | 207,594 | $4.0M |
| Man Group plc | 0.01% | Add +7.3% | 196,138 | $3.8M |
| Summit Partners L P | 0.26% | No change | 187,367 | $3.6M |
| Sei Investments Co. | 0.00% | Reduce -15.8% | 186,193 | $3.6M |
| Hillsdale Investment Management Inc. | 0.13% | Reduce -14.1% | 177,100 | $3.4M |
| Nuveen, LLC | 0.00% | Reduce -15.7% | 168,363 | $3.3M |
| Ameriprise Financial Inc. | 0.00% | Reduce -11.8% | 148,638 | $2.9M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.01% | Add +1.6% | 141,803 | $2.7M |
| Swiss National Bank | 0.00% | Reduce -1.3% | 141,200 | $2.7M |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0.00% | Reduce -56.1% | 140,666 | $2.7M |
| Voloridge Investment Management, LLC | 0.01% | Add +220.6% | 139,207 | $2.7M |
| Bank of America Corp. | 0.00% | Add +6.6% | 136,848 | $2.6M |
| Susquehanna International Group, LLP | 0.00% | Add +19.1% | 135,132 | $2.6M |
| State Board of Administration of Florida Retirement System | 0.00% | Reduce -0.8% | 133,820 | $2.6M |
| Vident Advisory, LLC | 0.03% | Add +3.4% | 130,361 | $2.5M |
| Banque Cantonale Vaudoise | 0.10% | Add +2.1% | 125,815 | $2.4M |
| LPL Financial LLC | 0.00% | Add +584.0% | 119,215 | $2.3M |
| Citigroup Inc. | 0.00% | Reduce -24.5% | 115,373 | $2.2M |
| Franklin Resources Inc. | 0.00% | Add +0.7% | 109,639 | $2.1M |
| Allianz Asset Management GmbH | 0.00% | Reduce -47.3% | 104,244 | $2.0M |
| Martingale Asset Management L P | 0.05% | Add +1.1% | 101,935 | $2.0M |
| Canada Pension Plan Investment Board | 0.00% | Reduce -10.0% | 98,500 | $1.9M |
| New York State Common Retirement Fund | 0.00% | Add +6.9% | 97,845 | $1.9M |
| Truist Financial Corp. | 0.00% | Reduce -2.0% | 94,639 | $1.8M |
| Millennium Management | 0.00% | Add +51.2% | 93,127 | $1.8M |
| Wedge Capital Management L L P | 0.03% | Add +13.9% | 91,501 | $1.8M |
| Verity Asset Management, Inc. | 0.82% | Add +8.5% | 88,605 | $1.7M |
| Teacher Retirement System of Texas | 0.01% | Reduce -76.1% | 86,510 | $1.7M |
| California State Teachers Retirement System | 0.00% | Reduce -0.7% | 80,095 | $1.5M |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -12.6% | 77,216 | $1.5M |
| Raymond James Financial Inc. | 0.00% | Add +60.8% | 76,560 | $1.5M |
| Legato Capital Management LLC | 0.17% | No change | 75,635 | $1.5M |
| Fisher Asset Management | 0.00% | No change | 74,940 | $1.5M |
| Alliancebernstein L.P. | 0.00% | Reduce -0.1% | 71,890 | $1.4M |
| Cresset Asset Management, LLC | 0.01% | Add +13.1% | 71,365 | $1.4M |
| WINTON GROUP Ltd | 0.07% | Add +4.4% | 70,551 | $1.4M |
| BNP Paribas Financial Markets | 0.00% | Reduce -67.0% | 66,996 | $1.3M |
| Segall Bryant & Hamill, LLC | 0.02% | New | 65,440 | $1.3M |
| Globeflex Capital L P | 0.10% | No change | 65,303 | $1.3M |
| Deutsche Bank AG | 0.00% | Reduce -60.8% | 62,918 | $1.2M |
| Royal Bank of Canada | 0.00% | Reduce -71.1% | 61,637 | $1.2M |
| Integrated Quantitative Investments LLC | 0.34% | Reduce -0.1% | 60,500 | $1.2M |
| KLP Kapitalforvaltning As | 0.00% | Reduce -3.2% | 58,100 | $1.1M |
| Thrivent Financial for Lutherans | 0.00% | Reduce -2.1% | 53,002 | $1.0M |
| HSBC Holdings PLC | 0.00% | Reduce -29.8% | 50,523 | $974K |
| Comerica Bank | 0.00% | Add +3.8% | 47,166 | $913K |
| Amundi | 0.00% | Add +30.6% | 46,091 | $911K |
| Hennion & Walsh Asset Management, Inc. | 0.04% | Add +62.8% | 46,637 | $902K |
| Federated Hermes, Inc. | 0.00% | Add +1.2% | 46,022 | $891K |
"% of holder's portfolio" is ATEN's weight in each manager's 13F, not the share of A10 Networks Inc. the manager owns.