A10 NETWORKS INC (ATEN) Institutional Ownership Changes & 13F Activity

A10 NETWORKS INC (ATEN). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Invesco Ltd., Barclays Plc, Nomura Asset Management International Inc., Loomis Sayles & Co L P, and Goldman Sachs Group Inc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Cim Investment Management IncBuy+1,135+7.4%16,427$613.71KQ2 2026Sep 29, 2026
Envestnet Asset Management IncBuy+247,901—247,901$9.26MQ2 2026Sep 23, 2026
State Street CorpSell-7,554-0.2%3,082,631$115.17MQ2 2026Sep 22, 2026
Manufacturers Life Insurance Company, TheBuy+458+1.6%29,959$1.12MQ2 2026Sep 09, 2026
Parkside Financial Bank & TrustSell-63-2.6%2,345$87.61KQ2 2026Sep 04, 2026
Citadel Advisors LlcSell-420,780-81.9%93,240$3.48MQ2 2026Sep 02, 2026
Allianz Asset Management GmbhBuy+13,570+20.6%79,525$2.97MQ2 2026Sep 02, 2026
California State Teachers Retirement SystemSell-14,683-16.1%76,768$2.87MQ2 2026Aug 24, 2026
Mercer Global Advisors IncBuy+10,824—10,824$404.37KQ2 2026Aug 19, 2026
Fulcrum Asset Management LlpBuy+166—166$6.03KQ2 2026Aug 18, 2026
Empowered Funds, LlcSell-2,745-23.5%8,944$334.15KQ2 2026Aug 17, 2026
Transamerica Financial Advisors, LlcBuy+707—707$26.43KQ2 2026Aug 17, 2026
Public Employees Retirement System Of OhioBuy+147+79.9%331$12.37KQ2 2026Aug 17, 2026
Invesco Ltd.Buy+1,243,053—1,243,053$46.44MQ2 2026Aug 14, 2026
Barclays PlcSell-912,120-48.7%962,382$35.95MQ2 2026Aug 14, 2026
Nomura Asset Management International Inc.Buy+896,517—896,517$33.49MQ2 2026Aug 14, 2026
Loomis Sayles & Co L PBuy+884,023—884,023$33.03MQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+598,203+50.4%1,784,946$66.69MQ2 2026Aug 14, 2026
Jane Street Group, LlcSell-502,068-84.2%93,880$3.51MQ2 2026Aug 14, 2026
D. E. Shaw & Co., Inc.Buy+284,190+107.9%547,577$20.46MQ2 2026Aug 14, 2026
Punch & Associates Investment Management, Inc.Sell-271,163-18.6%1,188,747$44.41MQ2 2026Aug 14, 2026
Bank Of America CorpBuy+254,717+123.2%461,387$17.24MQ2 2026Aug 14, 2026
Millennium Management LlcSell-239,341-57.7%175,579$6.56MQ2 2026Aug 14, 2026
Portolan Capital Management, LlcBuy+226,920—226,920$8.48MQ2 2026Aug 14, 2026
Royce & Associates LpSell-219,784-26.9%597,646$22.33MQ2 2026Aug 14, 2026
Two Sigma Investments, LpSell-195,026-14.8%1,124,963$42.03MQ2 2026Aug 14, 2026
Price T Rowe Associates IncSell-178,440-16.6%894,398$33.42MQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+168,623—168,623$6.30MQ2 2026Aug 14, 2026
Qube Research & Technologies LtdSell-145,405-92.3%12,141$453.59KQ2 2026Aug 14, 2026
Credit Agricole S ABuy+138,000—138,000$5.16MQ2 2026Aug 14, 2026
Showing 30 of 303

Frequently asked questions about ATEN activity

  • Which institutional owners are buying ATEN?

    Institutional owners buying ATEN include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ATEN activity?

    "Buy" means an investor increased their reported position in ATEN compared to the prior reporting period. This reflects growing exposure to A10 NETWORKS INC (ATEN) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ATEN increasing?

    Institutional interest in ATEN can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.