A10 Networks, Inc. (ATEN) Insider Ownership

Historic Insider Ownership Trends

ATEN's three largest insider shareholders as of April 28, 2026 are Partners L P Summit (Other, 8.88Mn shares), Partners L P Summit (Other, 8.88Mn shares), Peter Y Chung (Director, 8.88Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Partners L P Summit - 0 8,877,890 09 Dec, 2021
Partners L P Summit - 0 8,877,890 09 Dec, 2021
Peter Y Chung - 0 8,877,890 09 Dec, 2021
Partners L P Summit - 0 5,388,206 09 Sep, 2022
Partners L P Summit - 0 5,388,206 09 Sep, 2022
Dhrupad Trivedi Chief Executive Officer 695,235 0 03 Mar, 2026
Dhrupad Trivedi Chief Executive Officer 695,235 0 03 Mar, 2026
Robert D Cochran Evp Legal Corp Collaboration 344,161 0 29 Jun, 2022
Robert D Cochran Evp Legal Corp Collaboration 344,161 0 29 Jun, 2022
Peter Y Chung - 0 207,298 24 Apr, 2026
Tor Braham - 192,812 0 22 Apr, 2026
Eric Singer - 0 178,535 03 Dec, 2021
Eric Singer - 93,504 0 22 Apr, 2026
Matthew P Bruening Evp, Worldwide Sales Mktg 85,307 0 14 Nov, 2023
Matthew P Bruening Evp, Worldwide Sales Mktg 85,307 0 14 Nov, 2023
Brian Becker Chief Financial Officer 77,599 0 14 Aug, 2025
Brian Becker Chief Financial Officer 77,599 0 14 Aug, 2025
Eric Singer - 73,573 0 10 May, 2024
Dana Elizabeth Wolf - 60,061 0 22 Apr, 2026
Robert Scott Weber General Counsel 54,210 0 03 Mar, 2026
Robert Scott Weber General Counsel 54,210 0 03 Mar, 2026
Sheen George Khoury Executive Vp, Sales And Mktg 44,294 0 13 Feb, 2026
Sheen George Khoury Executive Vp, Sales And Mktg 44,294 0 13 Feb, 2026
Dana Elizabeth Wolf - 40,130 0 10 May, 2024
Karen S. Thomas Evp, Worldwide Sales And Mkt 28,152 0 30 Dec, 2024
Karen S. Thomas Evp, Worldwide Sales And Mkt 28,152 0 30 Dec, 2024
Michelle Elizabeth Caron Chief Financial Officer 19,684 0 13 Feb, 2026
Michelle Elizabeth Caron Chief Financial Officer 19,684 0 13 Feb, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
22 Apr, 2026 Peter Y Chung Common Stock A 7,233 $0.00 207,298 I A
22 Apr, 2026 Peter Y Chung Common Stock A 7,233 $0.00 207,298 I A
22 Apr, 2026 Peter Y Chung Common Stock A 7,233 $0.00 207,298 I A
22 Apr, 2026 Peter Y Chung Common Stock A 7,233 $0.00 207,298 I A
22 Apr, 2026 Peter Y Chung Common Stock A 7,233 $0.00 207,298 I A
22 Apr, 2026 Eric Singer Common Stock A 7,233 $0.00 93,504 D A
22 Apr, 2026 Tor Braham Common Stock A 7,233 $0.00 192,812 D A
22 Apr, 2026 Eric Singer Common Stock A 7,233 $0.00 93,504 D A
22 Apr, 2026 Dana Elizabeth Wolf Common Stock A 7,233 $0.00 60,061 D A
22 Apr, 2026 Dana Elizabeth Wolf Common Stock A 7,233 $0.00 60,061 D A
22 Apr, 2026 Dana Elizabeth Wolf Common Stock A 7,233 $0.00 60,061 D A
22 Apr, 2026 Tor Braham Common Stock A 7,233 $0.00 192,812 D A
22 Apr, 2026 Eric Singer Common Stock A 7,233 $0.00 93,504 D A
22 Apr, 2026 Dana Elizabeth Wolf Common Stock A 7,233 $0.00 60,061 D A
22 Apr, 2026 Eric Singer Common Stock A 7,233 $0.00 93,504 D A
22 Apr, 2026 Tor Braham Common Stock A 7,233 $0.00 192,812 D A
22 Apr, 2026 Tor Braham Common Stock A 7,233 $0.00 192,812 D A
22 Apr, 2026 Eric Singer Common Stock A 7,233 $0.00 93,504 D A
22 Apr, 2026 Dana Elizabeth Wolf Common Stock A 7,233 $0.00 60,061 D A
22 Apr, 2026 Tor Braham Common Stock A 7,233 $0.00 192,812 D A