A10 Networks, Inc. - Common stock, $0.00001 par value per share (ATEN) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common stock, $0.00001 par value per share
Symbol
ATEN on NYSE
Shares outstanding
77,603,290
Price per share
$17.13
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
70,128,160
Total reported value
$1,240,654,087
% of total 13F portfolios
0%
Share change
-553,045
Value change
-$10,447,110
Number of holders
239
Price from insider filings
$17.13
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of A10 Networks, Inc. - Common stock, $0.00001 par value per share (ATEN) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
VANGUARD GROUP INC 10% $121,938,264 7,435,260 The Vanguard Group 28 Feb 2025
Legal & General Investment Management Ltd 3.1% $46,550,093 2,405,702 Legal & General Group Plc 31 Dec 2021

As of 31 Dec 2025, 239 institutional investors reported holding 70,128,160 shares of A10 Networks, Inc. - Common stock, $0.00001 par value per share (ATEN). This represents 90% of the company’s total 77,603,290 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of A10 Networks, Inc. - Common stock, $0.00001 par value per share (ATEN) together control 71% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 17% 12,985,049 -0.56% 0% $229,705,512
VANGUARD GROUP INC 9.3% 7,241,762 +0.09% 0% $128,106,771
Penserra Capital Management LLC 5.5% 4,260,259 +16% 0.9% $75,363,000
STATE STREET CORP 4% 3,116,155 -5.2% 0% $55,124,782
FIRST TRUST ADVISORS LP 3.2% 2,463,337 +21% 0.03% $43,576,431
Boston Trust Walden Corp 3.1% 2,440,649 -7.6% 0.33% $43,175,081
RENAISSANCE TECHNOLOGIES LLC 2.8% 2,134,734 -11% 0.06% $37,763,444
WELLINGTON MANAGEMENT GROUP LLP 2.6% 2,020,067 -1.7% 0.01% $35,734,985
BARCLAYS PLC 2.4% 1,841,906 +35% 0.01% $32,583,318
GEODE CAPITAL MANAGEMENT, LLC 2.3% 1,777,631 +0.57% 0% $31,451,945
DIMENSIONAL FUND ADVISORS LP 2.1% 1,648,788 +0.93% 0.01% $29,168,131
PRICE T ROWE ASSOCIATES INC /MD/ 2% 1,536,628 -2.3% 0% $27,184,000
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 1.9% 1,448,929 -46% 0.04% $25,634,840
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. 1.8% 1,435,626 +0.3% 1.5% $25,396,224
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 1.4% 1,095,287 -11% 0.01% $19,375,627
GOLDMAN SACHS GROUP INC 1.3% 1,034,491 +67% 0% $18,300,145
Boston Partners 1.1% 840,140 0.02% $14,795,379
Invesco Ltd. 1.1% 836,178 +13% 0% $14,791,987
MORGAN STANLEY 1% 804,349 +6.5% 0% $14,228,955
TWO SIGMA INVESTMENTS, LP 0.95% 733,734 +7.4% 0.02% $12,979,754
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.94% 728,568 +2.7% 0% $12,888,370
ROYCE & ASSOCIATES LP 0.94% 727,410 +4.7% 0.13% $12,867,883
NORTHERN TRUST CORP 0.89% 687,726 -5.5% 0% $12,165,873
Bank of New York Mellon Corp 0.86% 665,653 -7.2% 0% $11,775,406
Qube Research & Technologies Ltd 0.8% 622,666 +11% 0.02% $11,014,962

Institutional Holders of A10 Networks, Inc. - Common stock, $0.00001 par value per share (ATEN) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 70,128,160 $1,240,654,087 -$10,447,110 $17.69 239
2025 Q3 70,175,328 $1,273,706,190 -$5,933,480 $18.15 235
2025 Q2 70,356,781 $1,361,399,966 +$12,807,261 $19.35 228
2025 Q1 70,069,030 $1,145,010,285 +$74,061,719 $16.34 250
2024 Q4 65,023,933 $1,196,430,987 +$1,517,140 $18.40 217
2024 Q3 65,329,932 $943,377,304 -$22,895,903 $14.44 205
2024 Q2 66,605,248 $922,442,459 -$45,022,565 $13.85 216
2024 Q1 67,636,871 $928,770,250 +$160,707 $13.69 181
2023 Q4 67,701,244 $891,612,240 +$31,693,298 $13.17 189
2023 Q3 65,322,589 $981,799,095 +$297,731 $15.03 191
2023 Q2 65,353,425 $953,578,596 +$32,328,411 $14.59 195
2023 Q1 63,529,814 $984,023,416 -$39,311,216 $15.49 214
2022 Q4 65,905,004 $1,095,968,396 +$15,993,327 $16.63 220
2022 Q3 65,180,756 $864,946,691 -$62,771,185 $13.27 186
2022 Q2 68,739,787 $988,224,155 +$89,098,269 $14.38 194
2022 Q1 63,381,238 $884,250,577 -$16,566,449 $13.95 189
2021 Q4 64,752,279 $1,072,853,997 -$50,652,948 $16.58 174
2021 Q3 67,225,746 $905,996,390 +$14,969,942 $13.48 149
2021 Q2 66,068,645 $744,229,727 +$6,894,407 $11.26 132
2021 Q1 65,708,350 $630,499,637 +$28,739,618 $9.61 133
2020 Q4 62,784,683 $618,930,554 +$35,638,570 $9.86 144
2020 Q3 60,024,202 $382,700,781 +$17,450,035 $6.37 141
2020 Q2 57,174,252 $389,100,218 +$21,932,393 $6.81 125
2020 Q1 53,867,248 $335,711,051 +$12,702,220 $6.21 105
2019 Q4 51,560,383 $354,326,821 -$8,816,813 $6.87 103
2019 Q3 52,663,762 $364,718,833 +$4,345,857 $6.94 102
2019 Q2 52,175,485 $355,786,176 +$20,667,979 $6.82 95
2019 Q1 49,835,808 $353,314,409 +$20,826,634 $7.09 109
2018 Q4 46,975,256 $293,084,829 +$13,408,373 $6.24 101
2018 Q3 44,644,215 $271,437,248 -$9,103,627 $6.08 86
2018 Q2 44,313,996 $276,066,230 -$4,727,101 $6.23 88
2018 Q1 46,196,460 $268,716,498 +$6,898,477 $5.82 96
2017 Q4 44,001,518 $339,715,414 +$22,314,285 $7.72 107
2017 Q3 41,074,745 $310,355,180 +$6,164,163 $7.56 97
2017 Q2 39,961,089 $337,237,914 +$1,160,450 $8.44 107
2017 Q1 39,649,476 $362,761,066 +$49,608,076 $9.15 120
2016 Q4 38,922,504 $322,728,241 +$12,648,897 $8.31 108
2016 Q3 35,824,586 $382,959,895 +$68,361,727 $10.69 109
2016 Q2 30,717,051 $198,736,240 +$10,080,712 $6.47 99
2016 Q1 29,309,932 $173,498,000 +$4,513,109 $5.92 98
2015 Q4 28,572,628 $187,447,370 +$8,861,245 $6.56 101
2015 Q3 28,234,312 $169,218,996 +$18,142,042 $5.99 85
2015 Q2 25,281,075 $162,807,143 +$22,146,584 $6.44 75
2015 Q1 21,680,599 $93,872,740 -$6,436,018 $4.33 51
2014 Q4 23,332,175 $101,948,863 -$16,905,850 $4.36 65
2014 Q3 22,368,077 $203,768,465 +$4,874,924 $9.11 52
2014 Q2 21,438,571 $285,131,643 +$251,928,150 $13.30 61
2014 Q1 2,321,610 $34,917,000 +$34,917,000 $15.04 11