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ATEN US
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A10 Networks, Inc.
(ATEN US)
$22.41
-1.40
5.88%
(Market Open · 19:15:00 UTC)
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ATEN US
Home
Stock Screener
Document Search
Charting
Watchlists
Recent Filings
A10 Networks, Inc.
(ATEN US)
$22.41
-1.40
5.88%
(Market Open · 19:15:00 UTC)
Ask AI
Follow
Doc Search
Profile
Entity Structure
SEC Filings
Financials
Charting
Short Interest
Employees
Chronological
By Owner
Financials & Metrics
Financials
Charting
Short Interest
Employees
Chronological
By Owner
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Financials
Charting
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SEC Filings by Owner
SEC Filings by Owner
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Insider Ownership
COCHRAN ROBERT D
(64)
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4
Statement of changes in beneficial ownership
29 Jun 2022
4
Statement of changes in beneficial ownership
10 Jun 2022
4
Statement of changes in beneficial ownership
18 May 2022
4
Statement of changes in beneficial ownership
10 May 2022
4
Statement of changes in beneficial ownership
29 Apr 2022
4
Statement of changes in beneficial ownership
26 Apr 2022
4
Statement of changes in beneficial ownership
5 Apr 2022
4
Statement of changes in beneficial ownership
15 Mar 2022
4
Statement of changes in beneficial ownership
4 Feb 2022
4
Statement of changes in beneficial ownership
2 Feb 2022
CHEN LEE
(63)
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4
Statement of changes in beneficial ownership
20 May 2020
4
Statement of changes in beneficial ownership
10 Jan 2018
4
Statement of changes in beneficial ownership
4 Jan 2018
4
Statement of changes in beneficial ownership
2 Jan 2018
4
Statement of changes in beneficial ownership
22 Dec 2017
4
Statement of changes in beneficial ownership
14 Dec 2017
4
Statement of changes in beneficial ownership
6 Dec 2017
4
Statement of changes in beneficial ownership
29 Nov 2017
4
Statement of changes in beneficial ownership
27 Nov 2017
4
Statement of changes in beneficial ownership
17 Nov 2017
Trivedi Dhrupad
(57)
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4/A
Statement of changes in beneficial ownership (amendment)
15 May
4
Statement of changes in beneficial ownership
15 May
4
Statement of changes in beneficial ownership
6 May
4
Statement of changes in beneficial ownership
3 Mar
4
Statement of changes in beneficial ownership
26 Feb
4
Statement of changes in beneficial ownership
13 Feb
4
Statement of changes in beneficial ownership
12 Feb
4
Statement of changes in beneficial ownership
3 Feb
4
Statement of changes in beneficial ownership
16 Jan
4
Statement of changes in beneficial ownership
16 Dec 2025
Becker Brian
(52)
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4
Statement of changes in beneficial ownership
14 Aug 2025
4
Statement of changes in beneficial ownership
11 Mar 2025
4
Statement of changes in beneficial ownership
24 Feb 2025
4
Statement of changes in beneficial ownership
18 Feb 2025
4
Statement of changes in beneficial ownership
10 Feb 2025
4
Statement of changes in beneficial ownership
4 Feb 2025
4
Statement of changes in beneficial ownership
27 Jan 2025
4
Statement of changes in beneficial ownership
30 Dec 2024
4
Statement of changes in beneficial ownership
29 Nov 2024
4
Statement of changes in beneficial ownership
8 Aug 2024
BRUENING MATTHEW P
(38)
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4
Statement of changes in beneficial ownership
13 Nov 2023
4
Statement of changes in beneficial ownership
6 Sep 2023
4
Statement of changes in beneficial ownership
21 Aug 2023
4
Statement of changes in beneficial ownership
9 Aug 2023
4
Statement of changes in beneficial ownership
2 Aug 2023
4
Statement of changes in beneficial ownership
15 May 2023
4
Statement of changes in beneficial ownership
10 May 2023
4
Statement of changes in beneficial ownership
15 Mar 2023
4
Statement of changes in beneficial ownership
22 Feb 2023
4
Statement of changes in beneficial ownership
17 Feb 2023
Reiss Gunter
(34)
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4
Statement of changes in beneficial ownership
29 Dec 2020
4
Statement of changes in beneficial ownership
25 Nov 2020
4
Statement of changes in beneficial ownership
10 Nov 2020
4
Statement of changes in beneficial ownership
27 Oct 2020
4
Statement of changes in beneficial ownership
25 Sep 2020
4
Statement of changes in beneficial ownership
25 Aug 2020
4
Statement of changes in beneficial ownership
28 Jul 2020
4
Statement of changes in beneficial ownership
7 Jul 2020
4
Statement of changes in beneficial ownership
24 Jun 2020
4
Statement of changes in beneficial ownership
26 May 2020
Weber Robert Scott
(33)
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4
Statement of changes in beneficial ownership
12 Aug
4
Statement of changes in beneficial ownership
6 Jul
4/A
Statement of changes in beneficial ownership (amendment)
15 May
4
Statement of changes in beneficial ownership
15 May
4
Statement of changes in beneficial ownership
6 May
4
Statement of changes in beneficial ownership
3 Mar
4
Statement of changes in beneficial ownership
13 Feb
4
Statement of changes in beneficial ownership
12 Feb
4
Statement of changes in beneficial ownership
3 Feb
4
Statement of changes in beneficial ownership
16 Jan
Singer Eric
(26)
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4
Statement of changes in beneficial ownership
6 May
4
Statement of changes in beneficial ownership
23 Apr
4
Statement of changes in beneficial ownership
18 Apr 2025
4
Statement of changes in beneficial ownership
10 May 2024
4
Statement of changes in beneficial ownership
18 May 2023
4
OWNERSHIP DOCUMENT
9 Nov 2022
4
Statement of changes in beneficial ownership
5 Aug 2022
4
Statement of changes in beneficial ownership
27 Jun 2022
4
OWNERSHIP DOCUMENT
9 Jun 2022
4/A
OWNERSHIP DOCUMENT
13 Jun 2022
CHUNG PETER Y
(20)
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4
Statement of changes in beneficial ownership
24 Apr
4
Statement of changes in beneficial ownership
18 Apr 2025
4
Statement of changes in beneficial ownership
18 Nov 2024
4
Statement of changes in beneficial ownership
15 Nov 2024
4
Statement of changes in beneficial ownership
22 May 2024
4
Statement of changes in beneficial ownership
10 May 2024
4
Statement of changes in beneficial ownership
18 May 2023
4
Statement of changes in beneficial ownership
17 Nov 2022
4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
VIEX Opportunities Fund, LP Series One
(18)
Expand
4
OWNERSHIP DOCUMENT
9 Nov 2022
4
Statement of changes in beneficial ownership
5 Aug 2022
4
Statement of changes in beneficial ownership
27 Jun 2022
4
OWNERSHIP DOCUMENT
9 Jun 2022
4
OWNERSHIP DOCUMENT
26 May 2022
4
OWNERSHIP DOCUMENT
20 May 2022
4
OWNERSHIP DOCUMENT
9 May 2022
4
OWNERSHIP DOCUMENT
3 Dec 2021
4
OWNERSHIP DOCUMENT
10 Nov 2021
4
OWNERSHIP DOCUMENT
3 Nov 2021
VIEX Opportunities Fund, LP - Series Two
(16)
Expand
4/A
OWNERSHIP DOCUMENT
13 Jun 2022
4
OWNERSHIP DOCUMENT
9 Jun 2022
4
OWNERSHIP DOCUMENT
26 May 2022
4
OWNERSHIP DOCUMENT
20 May 2022
4
OWNERSHIP DOCUMENT
9 May 2022
4
OWNERSHIP DOCUMENT
3 Dec 2021
4
OWNERSHIP DOCUMENT
10 Nov 2021
4
OWNERSHIP DOCUMENT
3 Nov 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
3 Sep 2020
SUMMIT PARTNERS L P
(12)
Expand
4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
MANNION MARTIN J
(12)
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4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Summit Investors I, LLC
(12)
Expand
4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Summit Investors I (UK), L.P.
(12)
Expand
4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Summit Investors Management, LLC
(12)
Expand
4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Summit Partners Growth Equity Fund VIII-A, L.P.
(12)
Expand
4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Summit Partners Growth Equity Fund VIII-B, L.P.
(12)
Expand
4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
SUMMIT PARTNERS GE VIII, L.P.
(12)
Expand
4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Summit Partners GE VIII, LLC
(12)
Expand
4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Braham Tor
(11)
Expand
4
Statement of changes in beneficial ownership
23 Apr
4
Statement of changes in beneficial ownership
18 Apr 2025
4
Statement of changes in beneficial ownership
10 May 2024
4
Statement of changes in beneficial ownership
18 May 2023
4
Statement of changes in beneficial ownership
27 Jun 2022
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
3
Initial statement of beneficial ownership
16 Mar 2018
VIEX Special Opportunities Fund II, LP
(11)
Expand
4
OWNERSHIP DOCUMENT
3 Dec 2021
4
OWNERSHIP DOCUMENT
10 Nov 2021
4
OWNERSHIP DOCUMENT
3 Nov 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
3 Sep 2020
4
Statement of changes in beneficial ownership
5 Aug 2020
4
Statement of changes in beneficial ownership
18 Nov 2019
4
Statement of changes in beneficial ownership
19 Aug 2019
4
Statement of changes in beneficial ownership
16 Aug 2019
3
OWNERSHIP DOCUMENT
30 Jul 2019
Constantino Thomas
(11)
Expand
4
Statement of changes in beneficial ownership
7 Jul 2020
4
Statement of changes in beneficial ownership
8 May 2020
4
Statement of changes in beneficial ownership
27 Apr 2020
4
Statement of changes in beneficial ownership
9 Jul 2019
4
Statement of changes in beneficial ownership
1 May 2019
4
Statement of changes in beneficial ownership
24 Apr 2019
4
Statement of changes in beneficial ownership
23 Oct 2018
4
Statement of changes in beneficial ownership
19 Oct 2018
4/A
Statement of changes in beneficial ownership (amendment)
22 Oct 2018
4
Statement of changes in beneficial ownership
15 Jun 2017
Henricks Alan S.
(10)
Expand
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
1 Nov 2017
4
Statement of changes in beneficial ownership
15 Aug 2017
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
3
Initial statement of beneficial ownership
20 Mar 2014
4/A
FORM 4A
28 Mar 2014
4
Statement of changes in beneficial ownership
24 Mar 2014
SMETS RAYMOND J
(9)
Expand
4
Statement of changes in beneficial ownership
16 Oct 2017
4
Statement of changes in beneficial ownership
2 Oct 2017
4
Statement of changes in beneficial ownership
12 May 2017
4
Statement of changes in beneficial ownership
4 Apr 2017
4
Statement of changes in beneficial ownership
15 Feb 2017
4
Statement of changes in beneficial ownership
8 Feb 2017
4
Statement of changes in beneficial ownership
17 Feb 2016
4
Statement of changes in beneficial ownership
24 Dec 2014
3
Initial statement of beneficial ownership
20 Mar 2014
VIEX Special Opportunities Fund III, LP
(9)
Expand
4
OWNERSHIP DOCUMENT
3 Nov 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
3 Sep 2020
4
Statement of changes in beneficial ownership
5 Aug 2020
4
Statement of changes in beneficial ownership
18 Nov 2019
4
Statement of changes in beneficial ownership
19 Aug 2019
4
Statement of changes in beneficial ownership
16 Aug 2019
4
OWNERSHIP DOCUMENT
30 Jul 2019
3
OWNERSHIP DOCUMENT
30 Jul 2019
SUMMIT MASTER COMPANY, LLC
(9)
Expand
4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
SALSBURY PHILLIP J
(8)
Expand
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
25 Aug 2015
4
Statement of changes in beneficial ownership
12 Jun 2015
4
Statement of changes in beneficial ownership
9 Jun 2014
3
Initial statement of beneficial ownership
20 Mar 2014
VIEX Capital Advisors, LLC
(8)
Expand
4
OWNERSHIP DOCUMENT
9 Nov 2022
4
Statement of changes in beneficial ownership
3 Sep 2020
4
Statement of changes in beneficial ownership
5 Aug 2020
4
Statement of changes in beneficial ownership
18 Nov 2019
4
Statement of changes in beneficial ownership
19 Aug 2019
4
Statement of changes in beneficial ownership
16 Aug 2019
3
OWNERSHIP DOCUMENT
30 Jul 2019
4
OWNERSHIP DOCUMENT
30 Jul 2019
VIEX GP, LLC
(8)
Expand
4
OWNERSHIP DOCUMENT
9 Nov 2022
4
Statement of changes in beneficial ownership
3 Sep 2020
4
Statement of changes in beneficial ownership
5 Aug 2020
4
Statement of changes in beneficial ownership
18 Nov 2019
4
Statement of changes in beneficial ownership
19 Aug 2019
4
Statement of changes in beneficial ownership
16 Aug 2019
3
OWNERSHIP DOCUMENT
30 Jul 2019
4
OWNERSHIP DOCUMENT
30 Jul 2019
Wolf Dana Elizabeth
(8)
Expand
4
Statement of changes in beneficial ownership
25 Aug
4
Statement of changes in beneficial ownership
23 Apr
4
Statement of changes in beneficial ownership
18 Apr 2025
4
Statement of changes in beneficial ownership
10 May 2024
4
Statement of changes in beneficial ownership
18 May 2023
3/A
Initial statement of beneficial ownership (amendment)
15 Jul 2022
3
Initial statement of beneficial ownership
27 Jun 2022
4
Statement of changes in beneficial ownership
27 Jun 2022
VIEX Special Opportunities GP II, LLC
(7)
Expand
4
Statement of changes in beneficial ownership
3 Sep 2020
4
Statement of changes in beneficial ownership
5 Aug 2020
4
Statement of changes in beneficial ownership
18 Nov 2019
4
Statement of changes in beneficial ownership
19 Aug 2019
4
Statement of changes in beneficial ownership
16 Aug 2019
3
OWNERSHIP DOCUMENT
30 Jul 2019
4
OWNERSHIP DOCUMENT
30 Jul 2019
VIEX Special Opportunities GP III, LLC
(7)
Expand
4
Statement of changes in beneficial ownership
3 Sep 2020
4
Statement of changes in beneficial ownership
5 Aug 2020
4
Statement of changes in beneficial ownership
18 Nov 2019
4
Statement of changes in beneficial ownership
19 Aug 2019
4
Statement of changes in beneficial ownership
16 Aug 2019
3
OWNERSHIP DOCUMENT
30 Jul 2019
4
OWNERSHIP DOCUMENT
30 Jul 2019
Thomas Karen S.
(7)
Expand
4
Statement of changes in beneficial ownership
30 Dec 2024
4
Statement of changes in beneficial ownership
13 Nov 2024
4
Statement of changes in beneficial ownership
9 Sep 2024
4
Statement of changes in beneficial ownership
31 Jan 2024
4
Statement of changes in beneficial ownership
22 Sep 2023
4
Statement of changes in beneficial ownership
11 Sep 2023
3
Initial statement of beneficial ownership
11 Sep 2023
Caron Michelle Elizabeth
(7)
Expand
4
Statement of changes in beneficial ownership
7 Oct
4/A
Statement of changes in beneficial ownership (amendment)
15 May
4
Statement of changes in beneficial ownership
15 May
4
Statement of changes in beneficial ownership
6 May
4
Statement of changes in beneficial ownership
13 Feb
4
Statement of changes in beneficial ownership
2 Oct 2025
3
Initial statement of beneficial ownership
26 Sep 2025
Straughn Greg
(6)
Expand
4
Statement of changes in beneficial ownership
15 Feb 2017
4
Statement of changes in beneficial ownership
8 Feb 2017
4
Statement of changes in beneficial ownership
17 Feb 2016
5
Annual statement of beneficial ownership
5 Feb 2016
4
Statement of changes in beneficial ownership
24 Dec 2014
3
Initial statement of beneficial ownership
20 Mar 2014
Becker Neil Wu
(6)
Expand
4
Statement of changes in beneficial ownership
15 Sep 2017
4
Statement of changes in beneficial ownership
11 Aug 2017
4
Statement of changes in beneficial ownership
7 Apr 2017
4
Statement of changes in beneficial ownership
4 Apr 2017
4
Statement of changes in beneficial ownership
26 Apr 2016
3
Initial statement of beneficial ownership
8 Apr 2016
Jalan Rajkumar
(5)
Expand
4
Statement of changes in beneficial ownership
4 Apr 2017
4
Statement of changes in beneficial ownership
8 Feb 2017
4
Statement of changes in beneficial ownership
17 Feb 2016
4
Statement of changes in beneficial ownership
24 Dec 2014
3
Initial statement of beneficial ownership
20 Mar 2014
White Christopher P.
(5)
Expand
4
Statement of changes in beneficial ownership
8 Jan 2020
4
Statement of changes in beneficial ownership
24 Apr 2019
4
Statement of changes in beneficial ownership
8 Jan 2019
4
Statement of changes in beneficial ownership
23 Oct 2018
3
Initial statement of beneficial ownership
8 Jan 2018
Natarajan Shiva Kumar
(4)
Expand
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
17 May 2017
4
Statement of changes in beneficial ownership
4 Apr 2017
3
Initial statement of beneficial ownership
3 Mar 2017
DODSON J MICHAEL
(3)
Expand
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Feb 2020
3
Initial statement of beneficial ownership
6 Feb 2020
Dotz Mary
(3)
Expand
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
30 Dec 2020
3
Initial statement of beneficial ownership
30 Dec 2020
Kapoor Sanjay
(3)
Expand
4
Statement of changes in beneficial ownership
17 Feb 2016
4
Statement of changes in beneficial ownership
1 May 2015
3
Initial statement of beneficial ownership
7 Apr 2015
Khoury Sheen George
(3)
Expand
4
Statement of changes in beneficial ownership
13 Feb
4
Statement of changes in beneficial ownership
15 Jul 2025
3
Initial statement of beneficial ownership
2 Jul 2025
Henry Mary C
(2)
Expand
4
Statement of changes in beneficial ownership
7 Oct
3
Initial statement of beneficial ownership
7 Oct
Matlof Jason
(1)
Expand
3
Initial statement of beneficial ownership
20 Mar 2014
≥5% Ownership
BlackRock Inc.
(10)
Expand
SC 13G/A
A10 Networks, Inc.
19 Jan 2024
SC 13G/A
A10 Networks, Inc.
26 Jan 2023
SC 13G/A
A10 Networks, Inc.
20 Jan 2023
SC 13G
A10 Networks, Inc.
9 May 2022
SC 13G/A
A10 Networks, Inc.
3 Feb 2022
SC 13G/A
A10 Networks, Inc.
29 Jan 2021
SC 13G/A
A10 Networks, Inc.
5 Feb 2020
SC 13G/A
A10 Networks, Inc.
4 Feb 2019
SC 13G/A
A10 Networks, Inc.
29 Jan 2018
SC 13G
A10 Networks, Inc.
30 Jan 2017
CHEN LEE
(9)
Expand
SC 13G/A
A10 Networks, Inc.
2 Nov 2020
SC 13G/A
A10 Networks, Inc.
1 Oct 2020
SC 13G/A
A10 Networks, Inc.
20 May 2020
SC 13G/A
A10 Networks, Inc.
27 Mar 2020
SC 13G/A
A10 Networks, Inc.
14 Feb 2019
SC 13G/A
A10 Networks, Inc.
14 Feb 2018
SC 13G/A
A10 Networks, Inc.
14 Feb 2018
SC 13G/A
A10 Networks, Inc.
16 Feb 2016
SC 13G
A10 Networks, Inc.
11 Feb 2015
VIEX Capital Advisors, LLC
(9)
Expand
SC 13D/A
A10 Networks, Inc.
3 Nov 2021
SC 13D/A
A10 Networks, Inc.
21 Nov 2019
SC 13D/A
A10 Networks, Inc.
19 Aug 2019
SC 13D/A
A10 Networks, Inc.
30 Jul 2019
SC 13D/A
A10 Networks, Inc.
5 Jun 2019
SC 13D/A
A10 Networks, Inc.
4 Jun 2019
SC 13D/A
A10 Networks, Inc.
2 Nov 2018
SC 13D/A
A10 Networks, Inc.
16 Mar 2018
SC 13D
A10 Networks, Inc.
29 Jan 2018
VANGUARD GROUP INC
(8)
Expand
SC 13G/A
A10 Networks, Inc.
26 Mar
SC 13G/A
A10 Networks, Inc.
6 Mar 2025
SC 13G/A
A10 Networks, Inc.
13 Feb 2024
SC 13G/A
A10 Networks, Inc.
9 Feb 2023
SC 13G/A
A10 Networks, Inc.
9 Feb 2022
SC 13G
A10 Networks, Inc.
10 Feb 2021
SC 13G/A
A10 Networks, Inc.
11 Feb 2019
SC 13G
A10 Networks, Inc.
8 Feb 2018
SUMMIT PARTNERS L P
(7)
Expand
SC 13G/A
A10 Networks, Inc.
8 Nov 2024
SC 13G/A
A10 Networks, Inc.
7 Feb 2024
SC 13G/A
A10 Networks, Inc.
1 Feb 2023
SC 13G/A
A10 Networks, Inc.
4 Feb 2022
SC 13G/A
A10 Networks, Inc.
4 Feb 2021
SC 13G/A
A10 Networks, Inc.
28 Jan 2020
SC 13G
A10 Networks, Inc.
4 Feb 2015
FIRST TRUST PORTFOLIOS LP
(6)
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SC 13G
A10 Networks, Inc.
30 Jul
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8 Jul 2024
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A10 Networks, Inc.
8 Apr 2024
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A10 Networks, Inc.
12 Jan 2024
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A10 Networks, Inc.
11 Jan 2023
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28 Jan 2022
ALLIANCEBERNSTEIN L.P.
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A10 Networks, Inc.
8 Feb 2021
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A10 Networks, Inc.
18 Feb 2020
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A10 Networks, Inc.
13 Feb 2019
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A10 Networks, Inc.
13 Feb 2018
RENAISSANCE TECHNOLOGIES LLC
(2)
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A10 Networks, Inc.
10 Feb 2022
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A10 Networks, Inc.
10 Feb 2021
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(2)
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A10 Networks, Inc.
9 Jul 2025
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A10 Networks, Inc.
14 Feb 2022
VANGUARD CAPITAL MANAGEMENT LLC
(2)
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A10 Networks, Inc.
30 Oct
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A10 Networks, Inc.
29 Apr
MITSUI & CO LTD
(1)
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A10 Networks, Inc.
22 Jan 2015
GO ETF SOLUTIONS LLP
(1)
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A10 Networks, Inc.
11 Feb 2021
VANGUARD PORTFOLIO MANAGEMENT LLC
(1)
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A10 Networks, Inc.
30 Oct
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COCHRAN ROBERT D
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29 Jun 2022
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10 Jun 2022
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18 May 2022
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10 May 2022
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Statement of changes in beneficial ownership
29 Apr 2022
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26 Apr 2022
4
Statement of changes in beneficial ownership
5 Apr 2022
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15 Mar 2022
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4 Feb 2022
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2 Feb 2022
CHEN LEE
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20 May 2020
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10 Jan 2018
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4 Jan 2018
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2 Jan 2018
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Statement of changes in beneficial ownership
22 Dec 2017
4
Statement of changes in beneficial ownership
14 Dec 2017
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6 Dec 2017
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29 Nov 2017
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27 Nov 2017
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17 Nov 2017
Trivedi Dhrupad
(57)
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15 May
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15 May
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6 May
4
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3 Mar
4
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26 Feb
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13 Feb
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12 Feb
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3 Feb
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16 Jan
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16 Dec 2025
Becker Brian
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14 Aug 2025
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11 Mar 2025
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24 Feb 2025
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18 Feb 2025
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Statement of changes in beneficial ownership
10 Feb 2025
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Statement of changes in beneficial ownership
4 Feb 2025
4
Statement of changes in beneficial ownership
27 Jan 2025
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30 Dec 2024
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29 Nov 2024
4
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8 Aug 2024
BRUENING MATTHEW P
(38)
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13 Nov 2023
4
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6 Sep 2023
4
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21 Aug 2023
4
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9 Aug 2023
4
Statement of changes in beneficial ownership
2 Aug 2023
4
Statement of changes in beneficial ownership
15 May 2023
4
Statement of changes in beneficial ownership
10 May 2023
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15 Mar 2023
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22 Feb 2023
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17 Feb 2023
Reiss Gunter
(34)
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29 Dec 2020
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25 Nov 2020
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10 Nov 2020
4
Statement of changes in beneficial ownership
27 Oct 2020
4
Statement of changes in beneficial ownership
25 Sep 2020
4
Statement of changes in beneficial ownership
25 Aug 2020
4
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28 Jul 2020
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7 Jul 2020
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24 Jun 2020
4
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26 May 2020
Weber Robert Scott
(33)
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12 Aug
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6 Jul
4/A
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15 May
4
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15 May
4
Statement of changes in beneficial ownership
6 May
4
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3 Mar
4
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13 Feb
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12 Feb
4
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3 Feb
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16 Jan
Singer Eric
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6 May
4
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23 Apr
4
Statement of changes in beneficial ownership
18 Apr 2025
4
Statement of changes in beneficial ownership
10 May 2024
4
Statement of changes in beneficial ownership
18 May 2023
4
OWNERSHIP DOCUMENT
9 Nov 2022
4
Statement of changes in beneficial ownership
5 Aug 2022
4
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27 Jun 2022
4
OWNERSHIP DOCUMENT
9 Jun 2022
4/A
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13 Jun 2022
CHUNG PETER Y
(20)
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24 Apr
4
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18 Apr 2025
4
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18 Nov 2024
4
Statement of changes in beneficial ownership
15 Nov 2024
4
Statement of changes in beneficial ownership
22 May 2024
4
Statement of changes in beneficial ownership
10 May 2024
4
Statement of changes in beneficial ownership
18 May 2023
4
Statement of changes in beneficial ownership
17 Nov 2022
4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
VIEX Opportunities Fund, LP Series One
(18)
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4
OWNERSHIP DOCUMENT
9 Nov 2022
4
Statement of changes in beneficial ownership
5 Aug 2022
4
Statement of changes in beneficial ownership
27 Jun 2022
4
OWNERSHIP DOCUMENT
9 Jun 2022
4
OWNERSHIP DOCUMENT
26 May 2022
4
OWNERSHIP DOCUMENT
20 May 2022
4
OWNERSHIP DOCUMENT
9 May 2022
4
OWNERSHIP DOCUMENT
3 Dec 2021
4
OWNERSHIP DOCUMENT
10 Nov 2021
4
OWNERSHIP DOCUMENT
3 Nov 2021
VIEX Opportunities Fund, LP - Series Two
(16)
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4/A
OWNERSHIP DOCUMENT
13 Jun 2022
4
OWNERSHIP DOCUMENT
9 Jun 2022
4
OWNERSHIP DOCUMENT
26 May 2022
4
OWNERSHIP DOCUMENT
20 May 2022
4
OWNERSHIP DOCUMENT
9 May 2022
4
OWNERSHIP DOCUMENT
3 Dec 2021
4
OWNERSHIP DOCUMENT
10 Nov 2021
4
OWNERSHIP DOCUMENT
3 Nov 2021
4
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3 May 2021
4
Statement of changes in beneficial ownership
3 Sep 2020
SUMMIT PARTNERS L P
(12)
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9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
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2 Jun 2017
4
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3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
MANNION MARTIN J
(12)
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9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Summit Investors I, LLC
(12)
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4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Summit Investors I (UK), L.P.
(12)
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4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Summit Investors Management, LLC
(12)
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4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Summit Partners Growth Equity Fund VIII-A, L.P.
(12)
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4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Summit Partners Growth Equity Fund VIII-B, L.P.
(12)
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4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
SUMMIT PARTNERS GE VIII, L.P.
(12)
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4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Summit Partners GE VIII, LLC
(12)
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4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
10 Dec 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
Braham Tor
(11)
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4
Statement of changes in beneficial ownership
23 Apr
4
Statement of changes in beneficial ownership
18 Apr 2025
4
Statement of changes in beneficial ownership
10 May 2024
4
Statement of changes in beneficial ownership
18 May 2023
4
Statement of changes in beneficial ownership
27 Jun 2022
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
3
Initial statement of beneficial ownership
16 Mar 2018
VIEX Special Opportunities Fund II, LP
(11)
Expand
4
OWNERSHIP DOCUMENT
3 Dec 2021
4
OWNERSHIP DOCUMENT
10 Nov 2021
4
OWNERSHIP DOCUMENT
3 Nov 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
3 Sep 2020
4
Statement of changes in beneficial ownership
5 Aug 2020
4
Statement of changes in beneficial ownership
18 Nov 2019
4
Statement of changes in beneficial ownership
19 Aug 2019
4
Statement of changes in beneficial ownership
16 Aug 2019
3
OWNERSHIP DOCUMENT
30 Jul 2019
Constantino Thomas
(11)
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4
Statement of changes in beneficial ownership
7 Jul 2020
4
Statement of changes in beneficial ownership
8 May 2020
4
Statement of changes in beneficial ownership
27 Apr 2020
4
Statement of changes in beneficial ownership
9 Jul 2019
4
Statement of changes in beneficial ownership
1 May 2019
4
Statement of changes in beneficial ownership
24 Apr 2019
4
Statement of changes in beneficial ownership
23 Oct 2018
4
Statement of changes in beneficial ownership
19 Oct 2018
4/A
Statement of changes in beneficial ownership (amendment)
22 Oct 2018
4
Statement of changes in beneficial ownership
15 Jun 2017
Henricks Alan S.
(10)
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4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
1 Nov 2017
4
Statement of changes in beneficial ownership
15 Aug 2017
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
3
Initial statement of beneficial ownership
20 Mar 2014
4/A
FORM 4A
28 Mar 2014
4
Statement of changes in beneficial ownership
24 Mar 2014
SMETS RAYMOND J
(9)
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4
Statement of changes in beneficial ownership
16 Oct 2017
4
Statement of changes in beneficial ownership
2 Oct 2017
4
Statement of changes in beneficial ownership
12 May 2017
4
Statement of changes in beneficial ownership
4 Apr 2017
4
Statement of changes in beneficial ownership
15 Feb 2017
4
Statement of changes in beneficial ownership
8 Feb 2017
4
Statement of changes in beneficial ownership
17 Feb 2016
4
Statement of changes in beneficial ownership
24 Dec 2014
3
Initial statement of beneficial ownership
20 Mar 2014
VIEX Special Opportunities Fund III, LP
(9)
Expand
4
OWNERSHIP DOCUMENT
3 Nov 2021
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
3 Sep 2020
4
Statement of changes in beneficial ownership
5 Aug 2020
4
Statement of changes in beneficial ownership
18 Nov 2019
4
Statement of changes in beneficial ownership
19 Aug 2019
4
Statement of changes in beneficial ownership
16 Aug 2019
4
OWNERSHIP DOCUMENT
30 Jul 2019
3
OWNERSHIP DOCUMENT
30 Jul 2019
SUMMIT MASTER COMPANY, LLC
(9)
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4
Statement of changes in beneficial ownership
9 Sep 2022
4
Statement of changes in beneficial ownership
28 Jun 2022
4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
12 Jun 2015
SALSBURY PHILLIP J
(8)
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4
Statement of changes in beneficial ownership
6 Dec 2019
4
Statement of changes in beneficial ownership
9 Nov 2018
4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
3 Jun 2016
4
Statement of changes in beneficial ownership
25 Aug 2015
4
Statement of changes in beneficial ownership
12 Jun 2015
4
Statement of changes in beneficial ownership
9 Jun 2014
3
Initial statement of beneficial ownership
20 Mar 2014
VIEX Capital Advisors, LLC
(8)
Expand
4
OWNERSHIP DOCUMENT
9 Nov 2022
4
Statement of changes in beneficial ownership
3 Sep 2020
4
Statement of changes in beneficial ownership
5 Aug 2020
4
Statement of changes in beneficial ownership
18 Nov 2019
4
Statement of changes in beneficial ownership
19 Aug 2019
4
Statement of changes in beneficial ownership
16 Aug 2019
3
OWNERSHIP DOCUMENT
30 Jul 2019
4
OWNERSHIP DOCUMENT
30 Jul 2019
VIEX GP, LLC
(8)
Expand
4
OWNERSHIP DOCUMENT
9 Nov 2022
4
Statement of changes in beneficial ownership
3 Sep 2020
4
Statement of changes in beneficial ownership
5 Aug 2020
4
Statement of changes in beneficial ownership
18 Nov 2019
4
Statement of changes in beneficial ownership
19 Aug 2019
4
Statement of changes in beneficial ownership
16 Aug 2019
3
OWNERSHIP DOCUMENT
30 Jul 2019
4
OWNERSHIP DOCUMENT
30 Jul 2019
Wolf Dana Elizabeth
(8)
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4
Statement of changes in beneficial ownership
25 Aug
4
Statement of changes in beneficial ownership
23 Apr
4
Statement of changes in beneficial ownership
18 Apr 2025
4
Statement of changes in beneficial ownership
10 May 2024
4
Statement of changes in beneficial ownership
18 May 2023
3/A
Initial statement of beneficial ownership (amendment)
15 Jul 2022
3
Initial statement of beneficial ownership
27 Jun 2022
4
Statement of changes in beneficial ownership
27 Jun 2022
VIEX Special Opportunities GP II, LLC
(7)
Expand
4
Statement of changes in beneficial ownership
3 Sep 2020
4
Statement of changes in beneficial ownership
5 Aug 2020
4
Statement of changes in beneficial ownership
18 Nov 2019
4
Statement of changes in beneficial ownership
19 Aug 2019
4
Statement of changes in beneficial ownership
16 Aug 2019
3
OWNERSHIP DOCUMENT
30 Jul 2019
4
OWNERSHIP DOCUMENT
30 Jul 2019
VIEX Special Opportunities GP III, LLC
(7)
Expand
4
Statement of changes in beneficial ownership
3 Sep 2020
4
Statement of changes in beneficial ownership
5 Aug 2020
4
Statement of changes in beneficial ownership
18 Nov 2019
4
Statement of changes in beneficial ownership
19 Aug 2019
4
Statement of changes in beneficial ownership
16 Aug 2019
3
OWNERSHIP DOCUMENT
30 Jul 2019
4
OWNERSHIP DOCUMENT
30 Jul 2019
Thomas Karen S.
(7)
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4
Statement of changes in beneficial ownership
30 Dec 2024
4
Statement of changes in beneficial ownership
13 Nov 2024
4
Statement of changes in beneficial ownership
9 Sep 2024
4
Statement of changes in beneficial ownership
31 Jan 2024
4
Statement of changes in beneficial ownership
22 Sep 2023
4
Statement of changes in beneficial ownership
11 Sep 2023
3
Initial statement of beneficial ownership
11 Sep 2023
Caron Michelle Elizabeth
(7)
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4
Statement of changes in beneficial ownership
7 Oct
4/A
Statement of changes in beneficial ownership (amendment)
15 May
4
Statement of changes in beneficial ownership
15 May
4
Statement of changes in beneficial ownership
6 May
4
Statement of changes in beneficial ownership
13 Feb
4
Statement of changes in beneficial ownership
2 Oct 2025
3
Initial statement of beneficial ownership
26 Sep 2025
Straughn Greg
(6)
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4
Statement of changes in beneficial ownership
15 Feb 2017
4
Statement of changes in beneficial ownership
8 Feb 2017
4
Statement of changes in beneficial ownership
17 Feb 2016
5
Annual statement of beneficial ownership
5 Feb 2016
4
Statement of changes in beneficial ownership
24 Dec 2014
3
Initial statement of beneficial ownership
20 Mar 2014
Becker Neil Wu
(6)
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4
Statement of changes in beneficial ownership
15 Sep 2017
4
Statement of changes in beneficial ownership
11 Aug 2017
4
Statement of changes in beneficial ownership
7 Apr 2017
4
Statement of changes in beneficial ownership
4 Apr 2017
4
Statement of changes in beneficial ownership
26 Apr 2016
3
Initial statement of beneficial ownership
8 Apr 2016
Jalan Rajkumar
(5)
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4
Statement of changes in beneficial ownership
4 Apr 2017
4
Statement of changes in beneficial ownership
8 Feb 2017
4
Statement of changes in beneficial ownership
17 Feb 2016
4
Statement of changes in beneficial ownership
24 Dec 2014
3
Initial statement of beneficial ownership
20 Mar 2014
White Christopher P.
(5)
Expand
4
Statement of changes in beneficial ownership
8 Jan 2020
4
Statement of changes in beneficial ownership
24 Apr 2019
4
Statement of changes in beneficial ownership
8 Jan 2019
4
Statement of changes in beneficial ownership
23 Oct 2018
3
Initial statement of beneficial ownership
8 Jan 2018
Natarajan Shiva Kumar
(4)
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4
Statement of changes in beneficial ownership
2 Jun 2017
4
Statement of changes in beneficial ownership
17 May 2017
4
Statement of changes in beneficial ownership
4 Apr 2017
3
Initial statement of beneficial ownership
3 Mar 2017
DODSON J MICHAEL
(3)
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4
Statement of changes in beneficial ownership
28 May 2020
4
Statement of changes in beneficial ownership
6 Feb 2020
3
Initial statement of beneficial ownership
6 Feb 2020
Dotz Mary
(3)
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4
Statement of changes in beneficial ownership
3 May 2021
4
Statement of changes in beneficial ownership
30 Dec 2020
3
Initial statement of beneficial ownership
30 Dec 2020
Kapoor Sanjay
(3)
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4
Statement of changes in beneficial ownership
17 Feb 2016
4
Statement of changes in beneficial ownership
1 May 2015
3
Initial statement of beneficial ownership
7 Apr 2015
Khoury Sheen George
(3)
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4
Statement of changes in beneficial ownership
13 Feb
4
Statement of changes in beneficial ownership
15 Jul 2025
3
Initial statement of beneficial ownership
2 Jul 2025
Henry Mary C
(2)
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4
Statement of changes in beneficial ownership
7 Oct
3
Initial statement of beneficial ownership
7 Oct
Matlof Jason
(1)
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3
Initial statement of beneficial ownership
20 Mar 2014
≥5% Ownership
BlackRock Inc.
(10)
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SC 13G/A
A10 Networks, Inc.
19 Jan 2024
SC 13G/A
A10 Networks, Inc.
26 Jan 2023
SC 13G/A
A10 Networks, Inc.
20 Jan 2023
SC 13G
A10 Networks, Inc.
9 May 2022
SC 13G/A
A10 Networks, Inc.
3 Feb 2022
SC 13G/A
A10 Networks, Inc.
29 Jan 2021
SC 13G/A
A10 Networks, Inc.
5 Feb 2020
SC 13G/A
A10 Networks, Inc.
4 Feb 2019
SC 13G/A
A10 Networks, Inc.
29 Jan 2018
SC 13G
A10 Networks, Inc.
30 Jan 2017
CHEN LEE
(9)
Expand
SC 13G/A
A10 Networks, Inc.
2 Nov 2020
SC 13G/A
A10 Networks, Inc.
1 Oct 2020
SC 13G/A
A10 Networks, Inc.
20 May 2020
SC 13G/A
A10 Networks, Inc.
27 Mar 2020
SC 13G/A
A10 Networks, Inc.
14 Feb 2019
SC 13G/A
A10 Networks, Inc.
14 Feb 2018
SC 13G/A
A10 Networks, Inc.
14 Feb 2018
SC 13G/A
A10 Networks, Inc.
16 Feb 2016
SC 13G
A10 Networks, Inc.
11 Feb 2015
VIEX Capital Advisors, LLC
(9)
Expand
SC 13D/A
A10 Networks, Inc.
3 Nov 2021
SC 13D/A
A10 Networks, Inc.
21 Nov 2019
SC 13D/A
A10 Networks, Inc.
19 Aug 2019
SC 13D/A
A10 Networks, Inc.
30 Jul 2019
SC 13D/A
A10 Networks, Inc.
5 Jun 2019
SC 13D/A
A10 Networks, Inc.
4 Jun 2019
SC 13D/A
A10 Networks, Inc.
2 Nov 2018
SC 13D/A
A10 Networks, Inc.
16 Mar 2018
SC 13D
A10 Networks, Inc.
29 Jan 2018
VANGUARD GROUP INC
(8)
Expand
SC 13G/A
A10 Networks, Inc.
26 Mar
SC 13G/A
A10 Networks, Inc.
6 Mar 2025
SC 13G/A
A10 Networks, Inc.
13 Feb 2024
SC 13G/A
A10 Networks, Inc.
9 Feb 2023
SC 13G/A
A10 Networks, Inc.
9 Feb 2022
SC 13G
A10 Networks, Inc.
10 Feb 2021
SC 13G/A
A10 Networks, Inc.
11 Feb 2019
SC 13G
A10 Networks, Inc.
8 Feb 2018
SUMMIT PARTNERS L P
(7)
Expand
SC 13G/A
A10 Networks, Inc.
8 Nov 2024
SC 13G/A
A10 Networks, Inc.
7 Feb 2024
SC 13G/A
A10 Networks, Inc.
1 Feb 2023
SC 13G/A
A10 Networks, Inc.
4 Feb 2022
SC 13G/A
A10 Networks, Inc.
4 Feb 2021
SC 13G/A
A10 Networks, Inc.
28 Jan 2020
SC 13G
A10 Networks, Inc.
4 Feb 2015
FIRST TRUST PORTFOLIOS LP
(6)
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SC 13G
A10 Networks, Inc.
30 Jul
SC 13G/A
A10 Networks, Inc.
8 Jul 2024
SC 13G/A
A10 Networks, Inc.
8 Apr 2024
SC 13G/A
A10 Networks, Inc.
12 Jan 2024
SC 13G/A
A10 Networks, Inc.
11 Jan 2023
SC 13G
A10 Networks, Inc.
28 Jan 2022
ALLIANCEBERNSTEIN L.P.
(4)
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SC 13G/A
A10 Networks, Inc.
8 Feb 2021
SC 13G/A
A10 Networks, Inc.
18 Feb 2020
SC 13G/A
A10 Networks, Inc.
13 Feb 2019
SC 13G
A10 Networks, Inc.
13 Feb 2018
RENAISSANCE TECHNOLOGIES LLC
(2)
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SC 13G/A
A10 Networks, Inc.
10 Feb 2022
SC 13G
A10 Networks, Inc.
10 Feb 2021
Legal & General Investment Management Ltd
(2)
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SC 13G/A
A10 Networks, Inc.
9 Jul 2025
SC 13G
A10 Networks, Inc.
14 Feb 2022
VANGUARD CAPITAL MANAGEMENT LLC
(2)
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SC 13G/A
A10 Networks, Inc.
30 Oct
SC 13G
A10 Networks, Inc.
29 Apr
MITSUI & CO LTD
(1)
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SC 13G
A10 Networks, Inc.
22 Jan 2015
GO ETF SOLUTIONS LLP
(1)
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SC 13G
A10 Networks, Inc.
11 Feb 2021
VANGUARD PORTFOLIO MANAGEMENT LLC
(1)
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SC 13G
A10 Networks, Inc.
30 Oct
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