Company · Ownership research

A10 Networks, Inc. ATEN

CIK 0001580808

Form 4 transactions dated Nov 1, 2023 to Nov 14, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through Oct 7, 2026.

Insider purchases & sales

Purchased: $0.00
Sold: $59.91M

Nov 1, 2023 – Oct 7, 2026
Available records · partial months are marked ·

202410 of 16 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 6, 2024	Weber Robert Scott General Counsel	Sale	$14.77K 812 shares sold	2.80% sold Direct holding	▾
Nov 27, 2024	Becker Brian Chief Financial Officer	Sale	$20.34K 1,200 shares sold	3.55% sold Direct holding	▾
Nov 14, 2024	CHUNG PETER Y Director	Sale	$388.62K 23,754 shares sold	4.39% sold Indirect holding	▾
Nov 13, 2024	CHUNG PETER Y Director	Sale	$1.30M 78,479 shares sold	12.67% sold Indirect holding	▾
Nov 12, 2024	Thomas Karen S. EVP, Worldwide Sales and Mkt	Sale	$102.91K 6,162 shares sold	20.57% sold Direct holding	▾
May 20, 2024	CHUNG PETER Y Director	Sale	$50.76M 3,296,047 shares sold	84.19% sold Indirect holding	▾
Mar 5, 2024	Trivedi Dhrupad Chief Executive Officer · Director	Sale10b5-1 footnote	$804.24K 60,606 shares sold	10.89% sold Direct holding	▾
Feb 13, 2024	Becker Brian Chief Financial Officer	Sale	$193.95K 15,000 shares sold	30.46% sold Direct holding	▾
Feb 5, 2024	Trivedi Dhrupad Chief Executive Officer · Director	Sale	$113.35K 8,679 shares sold	1.54% sold Direct holding	▾
Feb 5, 2024	Becker Brian Chief Financial Officer	Sale	$26.73K 2,047 shares sold	3.99% sold Direct holding	▾

Showing 16 / 16 record groups in 2024. The complete set is available through the API.

A10 Networks, Inc. · ATEN

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 16 of 16 purchase / sale groups and 30 of 30 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"ATEN","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.