[144] ON24, Inc. SEC Filing

Rhea-AI Filing Summary

ON24, Inc. (ONTF) Form 144 notifies the proposed sale of 3,094 shares of common stock through Morgan Stanley Smith Barney LLC, with an aggregate market value of $16,131.50, and an approximate sale date of 08/20/2025 on the NYSE. The filing states these shares were acquired as restricted stock from the issuer on 08/20/2025. The notice also discloses prior sales by the same account over May–June 2025 totaling 45,673 shares for gross proceeds of $253,233.97. The filer affirms no undisclosed material adverse information.

Positive

• Compliant disclosure: Filing provides required Rule 144 information including broker, number of shares, acquisition details, and seller attestations.
• Transaction detail: Acquisition characterized as restricted stock and broker details (Morgan Stanley Smith Barney LLC) are provided, improving transparency.

Negative

• Insider selling activity: The filer sold 45,673 shares in May–June 2025 for $253,233.97, which may concern investors monitoring insider dispositions.
• Relative concentration: Although the new proposed sale is small, recurring sales by the same account could be viewed negatively without further context about motives.

Insights

Securities Analyst

TL;DR: Routine insider sale notice; modest incremental sale relative to outstanding shares but notable recent selling activity.

The Form 144 reports a proposed sale of 3,094 common shares valued at $16,131.50 and shows the same account sold 45,673 shares in May–June 2025 for $253,233.97. With 42,306,290 shares outstanding reported in the filing, the proposed sale is immaterial on an absolute basis but the aggregated recent sales indicate ongoing disposition of holdings. Filing complies with Rule 144 disclosure requirements and includes acquisition details identifying the shares as restricted stock from the issuer.

Corporate Governance Expert

TL;DR: Disclosure is complete for a Rule 144 notice; raises governance questions about insider liquidity but provides required representations.

The notice contains required seller representations and indicates the filer signed to confirm no undisclosed material adverse information. The form documents acquisition dates and nature (restricted stock) and lists broker details. While the filing is procedurally compliant, the pattern of multiple sales within a short timeframe may prompt stakeholder questions about insider liquidity choices or personal portfolio management, though no nonpublic information is asserted.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	3094	16131.50	42306290	08/20/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/20/2025	Restricted Stock	Issuer			3094	08/20/2025	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
STEVEN VATTUONE 50 Beale Street 8th Floor San Francisco CA 94105	Common	06/06/2025	22048	122395.06
STEVEN VATTUONE 50 Beale Street 8th Floor San Francisco CA 94105	Common	06/05/2025	2448	13433.89
STEVEN VATTUONE 50 Beale Street 8th Floor San Francisco CA 94105	Common	06/04/2025	4692	25986.64
STEVEN VATTUONE 50 Beale Street 8th Floor San Francisco CA 94105	Common	06/03/2025	7316	40993.74
STEVEN VATTUONE 50 Beale Street 8th Floor San Francisco CA 94105	Common	06/02/2025	4051	22848.86
STEVEN VATTUONE 50 Beale Street 8th Floor San Francisco CA 94105	Common	05/21/2025	5118	27575.78

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What is being proposed for sale in the ONTF Form 144?

The filing proposes sale of 3,094 shares of ON24 common stock with aggregate market value of $16,131.50 via Morgan Stanley Smith Barney LLC.

When is the approximate sale date for the shares listed on the ONTF Form 144?

The approximate sale date is listed as 08/20/2025 and the anticipated exchange is the NYSE.

How were the shares being sold acquired according to the filing?

The filing states the shares were acquired as restricted stock from the issuer on 08/20/2025.

Has the filer sold ONTF shares recently?

Yes. The filing lists prior sales of 45,673 shares during May–June 2025, generating gross proceeds of $253,233.97.

Does the filer assert any undisclosed material information about ONTF?

By signing the notice, the filer represents they do not know of any material adverse information about the issuer that has not been publicly disclosed.