Company · Ownership research

ON24 INC. ONTF

CIK 0001110611

Form 4 transactions dated Sep 1, 2023 to Sep 23, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 42 rows; the complete set is available through the API.

Insider filings on file run through 2026-04-02.

Some filings are submitted jointly by several insiders. The SEC form does not apportion the reported figures between them, so results include every joint filer.

Insider purchases & sales

Purchased: $5.42M
Sold: $16.58M

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

202610 of 14 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2026-03-20	Blackie James Chief Revenue Officer	Sale10b5-1 footnote	$25.14K 3,117 shares sold	0.64% sold Direct holding	▾
2026-03-20	Sahasi Jayesh EV President, Product and CTO	Sale10b5-1 footnote	$29.54K 3,662 shares sold	0.54% sold Direct holding	▾
2026-03-20	Sharan Sharat President and Chief Executive · Director · 10% owner	Sale10b5-1 footnote	$138.49K 17,171 shares sold	0.46% sold Direct holding	▾
2026-03-20	Vattuone Steven Chief Financial Officer	Sale10b5-1 footnote	$27.66K 3,429 shares sold	0.79% sold Direct holding	▾
2026-03-03	Vattuone Steven Chief Financial Officer	Sale10b5-1 footnote	$176.82K 22,013 shares sold	4.81% sold Direct holding	▾
2026-03-02	Blackie James Chief Revenue Officer	Sale10b5-1 footnote	$162.45K 20,277 shares sold	4.02% sold Direct holding	▾
2026-03-02	Sahasi Jayesh EV President, Product and CTO	Sale10b5-1 footnote	$173.18K 21,617 shares sold	3.08% sold Direct holding	▾
2026-03-02	Sharan Sharat President and Chief Executive · Director · 10% owner	Sale10b5-1 footnote	$125.61K 15,679 shares sold	0.42% sold Direct holding	▾
2026-03-02	Vattuone Steven Chief Financial Officer	Sale10b5-1 footnote	$183.33K 22,884 shares sold	4.76% sold Direct holding	▾
2026-02-11	Vattuone Steven Chief Financial Officer	Sale10b5-1 footnote	$3.34K 422 shares sold	0.09% sold Direct holding	▾

Showing 14 / 14 record groups in 2026. 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 14 of 14 purchase / sale groups and 30 of 42 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"ONTF","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Sources, coverage & how to read this data

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. 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.