# A10 NETWORKS INC COM

A10 NETWORKS INC COM is a security (CUSIP 002121101) tracked across SEC portfolio filings. 297 institutional managers reported $1.6B on Form 13F as of 2026-06-30; 28 registered fund positions totaling $80.5M via N-PORT as of 2026-05-31.

## Summary

- Issuer: A10 NETWORKS INC
- Class: COM
- CUSIP: 002121101
- Asset category: EC
- 13F holders: 297
- 13F value: $1.6B
- 13F period: 2026-06-30
- N-PORT fund positions: 28
- N-PORT value: $80.5M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 297 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BlackRock, Inc. | New York, NY | $302.6M | 13,088,277 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $128.1M | 7,241,762 |
| Boston Trust Walden Corp | BOSTON, MA | $90.3M | 2,416,808 |
| STATE STREET CORP | BOSTON, MA | $71.4M | 3,090,185 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $48.0M | 2,074,511 |
| BARCLAYS PLC | LONDON, X0 | $43.3M | 1,874,502 |
| [RENAISSANCE TECHNOLOGIES LLC](https://search.stillhousedata.com/firm/106661) | NEW YORK, NY | $41.3M | 1,784,987 |
| FIRST TRUST ADVISORS LP | Wheaton, IL | $39.8M | 1,719,817 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $39.7M | 1,717,406 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $37.8M | 1,635,947 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | CENTRAL, K3 | $36.0M | 1,556,176 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | BOSTON, MA | $34.6M | 1,497,144 |
| [PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.](https://search.stillhousedata.com/firm/117962) | EDINA, MN | $33.8M | 1,459,910 |
| [TWO SIGMA INVESTMENTS, LP](https://search.stillhousedata.com/firm/137137) | New York, NY | $30.5M | 1,319,989 |
| Boston Partners | BOSTON, MA | $30.0M | 802,469 |

## Top fund holders (N-PORT)

_Showing 15 of 28 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $18.4M | 2.26% |
| [Oberweis Micro-Cap Fund](https://search.stillhousedata.com/fund/S000010231) | OBERWEIS FUNDS | $11.2M | 106.57% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $11.1M | 6.35% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $7.9M | 3.61% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $6.9M | 9.24% |
| [ETFMG Prime Cyber Security ETF](https://search.stillhousedata.com/fund/S000047480) | ETF Managers Trust | $5.1M | 30.94% |
| [Embark Small Cap Equity Fund](https://search.stillhousedata.com/fund/S000083503) | Harbor Funds II | $4.7M | 81.42% |
| [Paradigm Micro-Cap Fund](https://search.stillhousedata.com/fund/S000020362) | PARADIGM FUNDS | $4.4M | 325.00% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $2.7M | 5.54% |
| [VOYA SMALL COMPANY PORTFOLIO](https://search.stillhousedata.com/fund/S000008709) | Voya VARIABLE PORTFOLIOS INC | $1.9M | 102.92% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $1.1M | 11.45% |
| [Voya MI Dynamic Small Cap Fund](https://search.stillhousedata.com/fund/S000066937) | Voya Equity Trust | $1.0M | 54.38% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $962K | 0.16% |
| [BNY Mellon Smallcap Stock Index Fund](https://search.stillhousedata.com/fund/S000000132) | BNY MELLON INDEX FUNDS, INC. | $957K | 11.29% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $822K | 0.27% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/002121101.md)
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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.