[144] ON24, Inc. SEC Filing

Rhea-AI Filing Summary

Form 144 notice by an insider of ON24, Inc. (ONTF) reporting a proposed sale of 25,305 common shares through Morgan Stanley Smith Barney with an aggregate market value of $141,778.85. The shares were recorded as restricted stock acquired on 09/02/2025 and the approximate sale date is listed as 09/02/2025. The filing shows 42,306,290 shares outstanding for the class. It also discloses four sales by the same person in the past three months totaling 15,696 shares for gross proceeds of $86,166.61. The filer affirms no undisclosed material adverse information.

Positive

• Disclosure compliance: Filing provides required details (shares, value, broker, acquisition method) consistent with Rule 144
• Insider attestation: Filer represents no material nonpublic information exists at signing

Negative

• Insider selling activity: Proposed sale plus prior three months sales total 41,001 shares (25,305 proposed plus 15,696 prior), indicating ongoing insider disposals
• Limited context: Form does not provide reason for sale or confirm adherence to any trading plan within the form

Insights

Securities Analyst

TL;DR: Routine insider notice to sell restricted shares; transaction size is small relative to outstanding stock.

The Form 144 documents a proposed sale of 25,305 restricted common shares with market value $141,778.85. Compared with the 42,306,290 shares outstanding, the proposed sale represents a small fraction of the class. The filing also lists recent dispositions of 15,696 shares producing $86,166.61 in proceeds over three months. This filing is informational and required under Rule 144; it does not by itself indicate undisclosed developments because the signer certifies no material nonpublic information exists.

Corporate Governance Expert

TL;DR: Compliance-focused disclosure of planned insider sale; documentation aligns with Rule 144 procedural requirements.

The notice identifies the broker (Morgan Stanley Smith Barney) and confirms acquisition method as restricted stock with same-day acquisition and proposed sale date. The signature statement affirms the filer is not aware of undisclosed material adverse information, meeting the attestation expectation for such filings. The record of prior sales in the last three months provides useful context on recent insider liquidity but contains no additional governance flags in this form alone.

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	25305	141778.85	42306290	09/02/2025	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	09/02/2025	Restricted Stock	Issuer			25305	09/02/2025	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
JAMES BLACKIE 50 Beale Street 8th Floor San Francisco CA 94105	Common	08/20/2025	3283	17116.91
JAMES BLACKIE 50 Beale Street 8th Floor San Francisco CA 94105	Common	06/05/2025	2102	11535.15
JAMES BLACKIE 50 Beale Street 8th Floor San Francisco CA 94105	Common	06/04/2025	4029	22314.62
JAMES BLACKIE 50 Beale Street 8th Floor San Francisco CA 94105	Common	06/03/2025	6282	35199.93

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 does ONTF Form 144 filed by James Blackie disclose?

The notice shows a proposed sale of 25,305 common shares with aggregate market value $141,778.85, acquired as restricted stock on 09/02/2025, via Morgan Stanley Smith Barney.

How many ONTF shares are outstanding according to the filing?

The filing reports 42,306,290 shares of the class outstanding.

What insider sales in the past three months are reported?

Four sales totaling 15,696 shares with gross proceeds of $86,166.61 on dates 06/03/2025, 06/04/2025, 06/05/2025, and 08/20/2025.

Who is the broker handling the proposed sale?

The broker named is Morgan Stanley Smith Barney LLC Executive Financial Services, 1 New York Plaza, 8th Floor, New York, NY 10004.

When was the restricted stock acquired by the seller?

The filing lists the acquisition date as 09/02/2025 and the same date for the date of payment.