A10 Networks (ATEN) Institutional Ownership

$25.96 +0.43 (+1.68%)

As of 08/21/2026 03:58 PM Eastern

Current Institutional Ownership Percentage: 98.61%
Number of Institutional Buyers (last 12 months): 154
Total Institutional Inflows (last 12 months): $997.09M

Number of Institutional Sellers (last 12 months): 94
Total Institutional Outflows (last 12 months): $131.76M

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ATEN Institutional Buying and Selling by Quarter

A10 Networks Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
8/23/2026	Nilsine Partners LLC	56,679	$2.12M	0.1%	+1.5%	0.078%
8/22/2026	denkapparat Operations GmbH	6,156	$230K	0.1%	N/A	0.008%
8/22/2026	Concurrent Investment Advisors LLC	5,659	$211K	0.0%	N/A	0.008%
8/21/2026	AXQ Capital LP	19,592	$732K	0.1%	+11.6%	0.027%
8/20/2026	Susquehanna Fundamental Investments LLC	37,489	$1.40M	0.0%	N/A	0.052%
8/20/2026	Benjamin Edwards Inc.	16,980	$634K	0.0%	N/A	0.023%
8/20/2026	Cookson Peirce & Co. Inc.	52,537	$1.96M	0.1%	+110.1%	0.072%
8/19/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	159,216	$5.95M	0.0%	-1.4%	0.219%
8/19/2026	Hsbc Holdings PLC	94,437	$3.53M	0.0%	-46.3%	0.130%
8/19/2026	Wellington Management Group LLP	1,959,853	$73.22M	0.0%	-5.5%	2.699%
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8/18/2026	Empowered Funds LLC	8,944	$334K	0.0%	N/A	0.012%
8/17/2026	Transamerica Financial Advisors LLC	707	$26K	0.0%	N/A	0.001%
8/17/2026	Punch & Associates Investment Management Inc.	1,188,747	$44.41M	2.2%	N/A	1.637%
8/17/2026	Bank of America Corp DE	461,387	$17.24M	0.0%	N/A	0.635%
8/15/2026	Freestone Grove Partners LP	26,420	$987K	0.0%	N/A	0.036%
8/15/2026	Jupiter Topco LLC	32,278	$1.21M	0.0%	N/A	0.044%
8/14/2026	Hsbc Holdings PLC	94,437	$3.53M	0.0%	N/A	0.130%
8/14/2026	PDT Partners LLC	111,226	$4.16M	0.2%	N/A	0.153%
8/14/2026	Canada Pension Plan Investment Board	75,500	$2.82M	0.0%	N/A	0.104%
8/14/2026	Legal & General Group Plc	189,446	$7.08M	0.0%	N/A	0.261%
8/14/2026	The Manufacturers Life Insurance Company	29,959	$1.12M	0.0%	N/A	0.041%
8/14/2026	Paradigm Capital Management Inc. NY	384,700	$14.37M	0.4%	N/A	0.530%
8/13/2026	Connor Clark & Lunn Investment Management Ltd.	178,808	$6.68M	0.0%	N/A	0.246%
8/13/2026	Globeflex Capital L P	65,303	$2.44M	0.3%	N/A	0.090%
8/12/2026	Northwestern Mutual Wealth Management Co.	728	$27K	0.0%	N/A	0.001%
8/11/2026	Ceredex Value Advisors LLC	387,750	$14.49M	0.4%	N/A	0.539%
8/7/2026	BlackRock Inc.	13,568,496	$506.92M	0.0%	N/A	18.845%
8/7/2026	Rice Hall James & Associates LLC	245,117	$9.16M	0.4%	N/A	0.340%
8/6/2026	Horizon Investment Services LLC	17,102	$639K	0.2%	N/A	0.024%
8/6/2026	State of Wyoming	1,532	$57K	0.0%	N/A	0.002%
8/3/2026	Summit Global Investments	21,417	$800K	0.0%	N/A	0.030%
7/25/2026	Boston Trust Walden Corp	2,416,808	$90.29M	0.7%	+11.2%	3.357%
7/24/2026	Benjamin Edwards Inc.	16,980	$634K	0.0%	N/A	0.024%
7/24/2026	Vest Financial LLC	66,670	$2.49M	0.0%	N/A	0.093%
7/24/2026	Nilsine Partners LLC	56,679	$2.12M	0.1%	+1.5%	0.079%
7/24/2026	Signaturefd LLC	2,159	$81K	0.0%	+24.2%	0.003%
7/24/2026	Cookson Peirce & Co. Inc.	52,537	$1.96M	0.1%	+110.1%	0.073%
7/23/2026	SBI Securities Co. Ltd.	1,167	$44K	0.0%	+83.5%	0.002%
7/22/2026	Mirae Asset Global Investments Co. Ltd.	28,531	$1.07M	0.0%	+4.0%	0.040%
7/10/2026	Wasatch Advisors LP	416,114	$15.55M	0.1%	N/A	0.578%
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7/9/2026	Hennion & Walsh Asset Management Inc.	141,978	$5.30M	0.2%	+24.4%	0.197%
7/7/2026	GAMMA Investing LLC	7,211	$269K	0.0%	+9.1%	0.010%
6/18/2026	Pacer Advisors Inc.	18,413	$426K	0.0%	+35.5%	0.026%
6/16/2026	Empowered Funds LLC	11,689	$270K	0.0%	N/A	0.016%
5/26/2026	Glenmede Trust Co. NA	10,382	$240K	0.0%	N/A	0.014%
5/19/2026	Cim Investment Management Inc.	15,292	$354K	0.1%	+42.0%	0.021%
5/19/2026	Bank of America Corp DE	206,670	$4.78M	0.0%	+24.9%	0.287%
5/19/2026	Janus Henderson Group PLC	87,505	$2.02M	0.0%	+171.1%	0.122%
5/18/2026	Amundi	40,416	$934K	0.0%	+6.7%	0.056%
5/18/2026	California State Teachers Retirement System	91,451	$2.11M	0.0%	+36.6%	0.127%
5/18/2026	Royal Bank of Canada	536,461	$12.40M	0.0%	+9,899.3%	0.745%
5/18/2026	Empowered Funds LLC	11,689	$270K	0.0%	N/A	0.016%
5/16/2026	The Manufacturers Life Insurance Company	29,501	$682K	0.0%	-4.1%	0.041%
5/16/2026	Quantinno Capital Management LP	55,029	$1.27M	0.0%	+151.4%	0.076%
5/16/2026	Lazard Asset Management LLC	17,993	$416K	0.0%	-36.1%	0.025%
5/15/2026	Weiss Asset Management LP	21,630	$500K	0.0%	N/A	0.030%
5/15/2026	Rice Hall James & Associates LLC	336,824	$7.79M	0.4%	+6.4%	0.468%
5/15/2026	Punch & Associates Investment Management Inc.	1,459,910	$33.75M	1.9%	+1.7%	2.028%
5/14/2026	Healthcare of Ontario Pension Plan Trust Fund	98,907	$2.29M	0.0%	+53.7%	0.137%
5/14/2026	Renaissance Technologies LLC	1,784,987	$41.27M	0.1%	-16.4%	2.479%
5/14/2026	Arrowstreet Capital Limited Partnership	1,497,144	$34.61M	0.0%	+36.7%	2.079%
5/14/2026	Inceptionr LLC	16,531	$382K	0.1%	N/A	0.023%
5/14/2026	Sei Investments Co.	121,241	$2.80M	0.0%	-1.7%	0.168%
5/14/2026	Walleye Capital LLC	5,000,000	$115.60M	0.5%	N/A	6.944%
5/14/2026	State of Wyoming	7,799	$180K	0.0%	N/A	0.011%
5/13/2026	First Trust Advisors LP	1,719,817	$39.76M	0.0%	-30.2%	2.389%
5/8/2026	PNC Financial Services Group Inc.	3,938	$91K	0.0%	+14.1%	0.005%
5/8/2026	Summit Global Investments	63,936	$1.48M	0.1%	-5.4%	0.089%
5/7/2026	Dimensional Fund Advisors LP	1,635,947	$37.82M	0.0%	-0.8%	2.281%
5/6/2026	Allspring Global Investments Holdings LLC	55,218	$1.33M	0.0%	+11.4%	0.077%
5/5/2026	Bank of New York Mellon Corp	660,639	$15.27M	0.0%	-0.8%	0.921%
5/5/2026	Illinois Municipal Retirement Fund	33,229	$768K	0.0%	-7.3%	0.046%
5/5/2026	Hillsdale Investment Management Inc.	127,661	$2.95M	0.1%	-4.3%	0.178%
5/4/2026	Principal Financial Group Inc.	436,279	$10.09M	0.0%	-3.5%	0.608%
5/1/2026	Fifth Third Bancorp	17,081	$395K	0.0%	+3,005.6%	0.024%
4/30/2026	Hsbc Holdings PLC	175,780	$4.05M	0.0%	+14.3%	0.245%
4/28/2026	Abel Hall LLC	12,663	$293K	0.1%	N/A	0.018%
4/27/2026	New York State Teachers Retirement System	20,501	$474K	0.0%	+18.8%	0.029%
4/27/2026	Leonteq Securities AG	9,229	$213K	0.0%	+111.3%	0.013%
4/25/2026	Boston Trust Walden Corp	2,173,261	$50.25M	0.4%	-11.0%	3.030%
4/24/2026	Deprince Race & Zollo Inc.	564,800	$13.06M	0.2%	N/A	0.788%
4/24/2026	Peregrine Capital Management LLC	219,619	$5.08M	0.2%	-8.8%	0.306%
4/24/2026	Impact Partnership Wealth LLC	10,573	$244K	0.0%	N/A	0.015%
4/22/2026	1492 Capital Management LLC	26,378	$610K	0.2%	+33.3%	0.037%
4/22/2026	Pictet Asset Management Holding SA	10,290	$238K	0.0%	N/A	0.014%
4/21/2026	Louisiana State Employees Retirement System	31,700	$733K	0.0%	N/A	0.044%
4/20/2026	Banque Cantonale Vaudoise	139,472	$3.23M	0.1%	-3.6%	0.194%
4/16/2026	SG Americas Securities LLC	54,521	$1.26M	0.0%	+6.0%	0.076%
4/16/2026	AEGON ASSET MANAGEMENT UK Plc	98,800	$2.28M	0.0%	N/A	0.138%
3/20/2026	Hsbc Holdings PLC	153,816	$2.72M	0.0%	+84.3%	0.214%
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3/6/2026	Hsbc Holdings PLC	153,816	$2.72M	0.0%	+84.3%	0.214%
2/24/2026	Pacer Advisors Inc.	13,592	$240K	0.0%	+46.4%	0.019%
2/19/2026	Invesco Ltd.	836,178	$14.79M	0.0%	+12.8%	1.166%
2/18/2026	Summit Global Investments	67,550	$1.20M	0.1%	-1.7%	0.094%
2/18/2026	State of Tennessee Department of Treasury	16,586	$289K	0.0%	-50.1%	0.023%
2/18/2026	Mackenzie Financial Corp	100,271	$1.79M	0.0%	-2.3%	0.140%
2/18/2026	XTX Topco Ltd	43,477	$769K	0.0%	N/A	0.061%
2/18/2026	Voloridge Investment Management LLC	61,162	$1.08M	0.0%	-49.9%	0.085%
2/18/2026	Wellington Management Group LLP	2,020,067	$35.74M	0.0%	-1.7%	2.816%
2/18/2026	Tudor Investment Corp ET AL	370,444	$6.55M	0.0%	+16.0%	0.516%

ATEN Institutional Ownership - Frequently Asked Questions

During the previous two years, 270 institutional investors and hedge funds held shares of A10 Networks. The most heavily invested institutionals were BlackRock Inc. ($506.92M), Vanguard Group Inc. ($128.11M), Walleye Capital LLC ($115.60M), Boston Trust Walden Corp ($90.29M), Wellington Management Group LLP ($73.22M), Penserra Capital Management LLC ($66.40M), and State Street Corp ($55.13M).Learn more on A10 Networks' institutional investors.

98.61% of A10 Networks' stock is owned by institutional investors. Learn more on ATEN's institutional investor holdings.

Of the 237 institutional investors that purchased A10 Networks' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($13.57M), Walleye Capital LLC ($5.01M), Boston Trust Walden Corp ($2.88M), Penserra Capital Management LLC ($2.01M), Wellington Management Group LLP ($1.95M), Barclays PLC ($1.81M), and Punch & Associates Investment Management Inc. ($1.30M).

Institutional investors have bought a total of 34,048,273 shares in the last 24 months. This purchase volume represents approximately $997.09M in transactions.

Of the 94 institutional investors that sold A10 Networks' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Legal & General Group Plc ($778.21K), First Trust Advisors LP ($743.52K), Harbor Capital Advisors Inc. ($611.10K), Renaissance Technologies LLC ($601.80K), Boston Trust Walden Corp ($466.73K), Jacobs Levy Equity Management Inc. ($407.77K), and Penserra Capital Management LLC ($306.54K).

Institutional investors have sold a total of 6,699,353 shares in the last 24 months. This volume of shares sold represents approximately $131.76M in transactions.

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Institutional ownership data for NYSE:ATEN is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/23/2026. New 13F filings are added each quarter as they're published.

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A10 Networks (ATEN) Institutional Ownership

ATEN Institutional Buying and Selling by Quarter

A10 Networks Major Shareholders & Ownership History

ATEN Institutional Ownership - Frequently Asked Questions

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A10 Networks (ATEN) Institutional Ownership

Institutional Ownership Changes (13F Filings) for A10 Networks (NYSE:ATEN)

ATEN Institutional Buying and Selling by Quarter

A10 Networks Major Shareholders & Ownership History

ATEN Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of ATEN shares?

What percentage of A10 Networks' stock is owned by institutional investors?

Which institutional investors have been buying A10 Networks' stock?

How much institutional buying is happening at A10 Networks?

Which of A10 Networks' major shareholders have been selling company stock?

How much institutional selling is happening at A10 Networks?

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