A10 Networks, Inc. ATEN NYSE

NYSE • Technology • Software - Infrastructure • US • USD

SharesGrow Score

55/100

2/7 Pass

SharesGrow Intrinsic Value

A10 Networks, Inc. (ATEN) has 20 known insider and institutional holders on record. The largest holder is CHEN LEE with 9,961,538 shares. Other notable holders include MANNION MARTIN J and SUMMIT PARTNERS L P.

Over the last 12 months, insiders have made 33 transactions in ATEN stock — 10 buys (valued at RSU Award) and 5 sells (valued at $1.58M). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.

ATEN Insider Ownership

Top Holder

CHEN LEE

9,961,538 shares

Buys (12 mo)

$0.00 value

Sells (12 mo)

$1.58M value

12-Month Transaction Activity

Buy 30%

Sell 15%

Top Insider Holders

#	Name	Role	Shares Owned	Last Filed	Relative Size
1	Chen Lee	10 Percent Owner, Officer: CEO and President	9,961,538	2018-01-10	100%
2	Mannion Martin J	Director	8,888,206	2022-06-28	89%
3	Summit Partners L P	10 Percent Owner	5,388,206	2022-09-09	54%
4	Trivedi Dhrupad	Chief Executive Officer	695,235	2026-03-03	7%
5	Jalan Rajkumar	Chief Technology Officer	425,132	2017-04-04	4%
6	Cochran Robert D	EVP Legal & Corp Collaboration	344,161	2022-06-29	3%
7	Chung Peter Y	Director	200,065	2025-04-18	2%
8	Braham Tor	Director	185,579	2025-04-18	2%
9	Salsbury Phillip J	Director	176,230	2019-12-06	2%
10	Smets Raymond J	EVP of Worldwide Sales	149,725	2017-10-16	2%
11	Reiss Gunter	VP Worldwide Marketing	135,543	2020-12-29	1%
12	Becker Neil Wu	VP Worldwide Mktg and Comm	118,946	2017-09-15	1%
13	White Christopher P.	EVP, Worldwide Sales	101,915	2020-01-08	1%
14	Henricks Alan S.	Director	88,640	2019-12-06	1%
15	Singer Eric	Director	86,271	2025-04-18	1%
16	Bruening Matthew P	EVP, Worldwide Sales & Mktg	85,307	2023-11-13	1%
17	Becker Brian	Chief Financial Officer	77,599	2025-08-14	1%
18	Natarajan Shiva Kumar	Interim CFO	73,737	2017-06-02	1%
19	Straughn Greg	Chief Financial Officer	65,561	2017-02-15	1%
20	Constantino Thomas	EVP, Chief Financial Officer	56,286	2020-07-07	1%

Recent Transactions (last 12 months)

Date	Name	Role	Type	Shares	Price	Value
2026-02-28	Weber Robert Scott	General Counsel	Tax Withholding of RSU	757	$19.26	$14.58K
2026-02-28	Trivedi Dhrupad	Chief Executive Officer	Tax Withholding of RSU	10,101	$19.26	$194.55K
2026-02-24	Trivedi Dhrupad	Chief Executive Officer	Tax Withholding of RSU	8,261	$18.99	$156.88K
2026-02-12	Caron Michelle Elizabeth	Chief Financial Officer	RSU Award	5,978	-	-
2026-02-12	Khoury Sheen George	Executive VP, Sales and Mktg	RSU Award	7,771	-	-
2026-02-12	Weber Robert Scott	General Counsel	RSU Award	7,413	-	-
2026-02-13	Trivedi Dhrupad	Chief Executive Officer	Informative Sell	33,334	$20.55	$685.01K
2026-02-12	Trivedi Dhrupad	Chief Executive Officer	RSU Award	131,516	-	-
2026-02-11	Trivedi Dhrupad	Chief Executive Officer	Informative Sell	33,333	$20.69	$689.66K
2026-02-10	Weber Robert Scott	General Counsel	Tax Withholding of RSU	1,897	$20.92	$39.69K
2026-02-10	Trivedi Dhrupad	Chief Executive Officer	Tax Withholding of RSU	8,261	$20.92	$172.82K
2026-02-01	Weber Robert Scott	General Counsel	Tax Withholding of RSU	4,614	$17.44	$80.47K
2026-01-31	Weber Robert Scott	General Counsel	Tax Withholding of RSU	836	$17.44	$14.58K
2026-02-01	Trivedi Dhrupad	Chief Executive Officer	Tax Withholding of RSU	61,945	$17.44	$1.08M
2026-01-31	Trivedi Dhrupad	Chief Executive Officer	Tax Withholding of RSU	10,102	$17.44	$176.18K
2026-01-15	Weber Robert Scott	General Counsel	Tax Withholding of RSU	1,024	$17.58	$18K
2026-01-15	Trivedi Dhrupad	Chief Executive Officer	Tax Withholding of RSU	13,106	$17.58	$230.4K
2025-12-15	Weber Robert Scott	General Counsel	Tax Withholding of RSU	925	$18.12	$16.76K
2025-12-12	Weber Robert Scott	General Counsel	Gift (Given)	600	-	-
2025-12-15	Trivedi Dhrupad	Chief Executive Officer	Tax Withholding of RSU	12,620	$18.12	$228.67K
2025-09-30	Caron Michelle Elizabeth	Chief Financial Officer	RSU Award	13,706	-	-
2025-09-24	Caron Michelle Elizabeth	Officer	Unknown	-	-	-
2025-08-18	Weber Robert Scott	General Counsel	Gift (Given)	600	-	-
2025-08-13	Becker Brian	Chief Financial Officer	Informative Sell	6,400	$18.03	$115.39K
2025-07-14	Khoury Sheen George	Executive VP, Sales and Mktg	RSU Award	35,000	-	-