A10 Networks ATEN Institutional Ownership

NYSE ATEN

$24.69 +2.09 (+9.25%)

As of: Nov 6, 2026 · 3:59 PM EST

Institutions by Trading Activity

312 Institutions

Increased 172 55.1%

Unchanged 41 13.1%

Reduced 99 31.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

—

13F totals exceed reported shares outstanding

Shares Held by Institutions

76.48Mn

of 72.45Mn outstanding

▲+5.77% QoQ

Shares Outstanding

72.45Mn

Institutional Investors

312

filed 13F for Jun 2026

▲+48 vs prior quarter

Net Shares Added (QoQ)

+4.17Mn

accumulated since last quarter

Value of Holdings

$1.73Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Nov 4, 2026

A10 Networks, Inc. (NYSE:ATEN) appeared in the 13F filings of 312 institutional investors for the quarter ended June 30, 2026.

Total shares held in A10 Networks rose 5.77% versus Q1 2026, while the number of holders rose 36.24% versus Q2 2025.
Among the 312 holders of A10 Networks, 172 added to their positions, 99 reduced their stakes and 41 left their positions unchanged.
Institutional investors held 76.48Mn shares of A10 Networks in total at the end of Q2 2026, up 4.17Mn from the prior quarter and up 7.4Mn from a year earlier.
BlackRock, Inc. was the top holder of A10 Networks as of June 30, 2026, with 13.57Mn shares.
Among existing holders, the largest additions to A10 Networks in Q2 2026 came from First Trust Advisors LP (+1.52Mn shares), FMR LLC (+1.41Mn shares), Invesco Ltd. (+880.38K shares), Goldman Sachs Group Inc (+598.2K shares) and BlackRock, Inc. (+480.22K shares).
Holders that trimmed the most shares of A10 Networks in Q2 2026 while keeping a position were Barclays PLC (-912.12K shares), Penserra Capital Management LLC (-526.07K shares), Jane Street Group, LLC (-502.07K shares), Citadel Advisors LLC (-420.78K shares) and Punch & Associates Investment Management, Inc. (-271.16K shares).
According to Business Quant data, the leading holders of ATEN for Q2 2026 were BlackRock, Inc. (13.57Mn shares), Vanguard Portfolio Management LLC (3.46Mn shares), First Trust Advisors LP (3.24Mn shares), State Street Corp (3.08Mn shares), Vanguard Capital Management LLC (3.07Mn shares), Penserra Capital Management LLC (3.07Mn shares), Boston Trust Walden Corp (2.42Mn shares), Wellington Management Group LLP (1.96Mn shares), Geode Capital Management, LLC (1.81Mn shares) and Goldman Sachs Group Inc (1.78Mn shares).

Form 13F Holdings

314 Institutional Holders

Report period 30 Jun, 2026

Total shares held 76.48Mn

Of outstanding —

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	13,568,496	18.73%	▲480,219	+3.67%	$506.92Mn
2	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	3,462,058	4.78%	▲74,210	+2.19%	$129.34Mn
3	FIRST TRUST ADVISORS LP	0001125816	3,244,739	4.48%	▲1,524,922	+88.67%	$121.22Mn
4	State Street Corp	0000093751	3,082,631	4.25%	▼7,554	-0.24%	$115.17Mn
5	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	3,071,071	4.24%	▼49,944	-1.60%	$114.74Mn
6	Penserra Capital Management LLC	0001593324	3,068,045	4.23%	▼526,067	-14.64%	$114.62K
7	Boston Trust Walden Corp	0001534866	2,416,808	3.34%	▲243,547	+11.21%	$90.29Mn
8	WELLINGTON MANAGEMENT GROUP LLP	0000902219	1,959,853	2.70%	▼114,658	-5.53%	$73.22Mn
9	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,813,638	2.50%	▲96,232	+5.60%	$67.77Mn
10	Goldman Sachs Group Inc	0000886982	1,784,946	2.46%	▲598,203	+50.41%	$66.69Mn
11	DIMENSIONAL FUND ADVISORS LP	0000354204	1,599,129	2.21%	▼36,818	-2.25%	$59.74Mn
12	RENAISSANCE TECHNOLOGIES LLC	0001037389	1,520,287	2.10%	▼264,700	-14.83%	$56.80Mn
13	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	0001164508	1,437,650	1.98%	▼59,494	-3.97%	$53.71Mn
14	FMR LLC	0000315066	1,433,878	1.98%	▲1,405,772	+5,001.68%	$53.57Mn
15	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	0001705339	1,426,608	1.97%	▼129,568	-8.33%	$53.27Mn
16	Invesco Ltd.	0000914208	1,243,053	1.72%	▲880,381	+242.75%	$46.44Mn
17	PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.	0001238990	1,188,747	1.64%	▼271,163	-18.57%	$44.41Mn
18	TWO SIGMA INVESTMENTS, LP	0001179392	1,124,963	1.55%	▼195,026	-14.77%	$42.03Mn
19	Prudential Financial Inc	0001137774	1,048,320	1.45%	▲163,113	+18.43%	$39.17Mn
20	Barclays Plc	0000312069	962,382	1.33%	▼912,120	-48.66%	$35.95Mn

Showing 1 to 20 of 314 holders