Company · Ownership research

ON24 INC. ONTF

CIK 0001110611

Form 4 transactions dated Nov 1, 2023 to Nov 7, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 139 rows; the complete set is available through the API.

Insider filings on file run through Apr 2, 2026.

Insider purchases & sales

Purchased: $5.42M
Sold: $16.09M

Nov 1, 2023 – Apr 2, 2026
Available records · partial months are marked ·

202510 of 30 preview events · 139 available in 2025

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 31, 2025	Sharan Sharat President and Chief Executive · Director · 10% owner	Sale10b5-1 footnote	$401.14K 50,332 shares sold	1.37% sold Direct holding	▾
Dec 30, 2025	Blackie James Chief Revenue Officer	Sale10b5-1 footnote	$127.36K 16,000 shares sold	3.23% sold Direct holding	▾
Dec 30, 2025	Sahasi Jayesh EV President, Product and CTO	Sale10b5-1 footnote	$277.43K 34,753 shares sold	4.91% sold Direct holding	▾
Dec 30, 2025	Vattuone Steven Chief Financial Officer	Sale10b5-1 footnote	$638.74K 80,000 shares sold	15.02% sold Direct holding	▾
Dec 17, 2025	Sharan Sharat President and Chief Executive · Director · 10% owner	Sale10b5-1 footnote	$111.37K 19,119 shares sold	0.52% sold Direct holding	▾
Dec 9, 2025	Vattuone Steven Chief Financial Officer	Sale10b5-1 footnote	$42.33K 7,010 shares sold	1.30% sold Direct holding	▾
Dec 3, 2025	Vattuone Steven Chief Financial Officer	Sale10b5-1 footnote	$55.11K 9,453 shares sold	1.72% sold Direct holding	▾
Dec 2, 2025	Blackie James Chief Revenue Officer	Sale10b5-1 footnote	$62.01K 10,951 shares sold	2.24% sold Direct holding	▾
Dec 2, 2025	Sahasi Jayesh EV President, Product and CTO	Sale10b5-1 footnote	$66.14K 11,681 shares sold	1.62% sold Direct holding	▾
Dec 2, 2025	Vattuone Steven Chief Financial Officer	Sale10b5-1 footnote	$72.22K 12,754 shares sold	2.27% sold Direct holding	▾

Showing 30 / 139 record groups in 2025. The complete set is available through the API.

ON24 INC. · ONTF

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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 30 of 139 purchase / sale groups and 30 of 56 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"ONTF","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.