Form 144: James Blackie Sells 16,240 ONTF Shares

Issuer filed a Form 144 disclosing insider dispositions of Common stock and planned issuer transfers of equity awards.

Rhea-AI Filing Summary

Issuer filed a Form 144 disclosing insider dispositions of Common stock and planned issuer transfers of equity awards. The filing lists two past sales by James Blackie: 240 shares on 02/10/2026 for $1,903.54 and 16,000 shares on 12/30/2025 for $127,360.00. The filing also lists planned issuer transfers dated 03/01/2026 of 3,932 performance shares and 16,345 restricted stock units.

Insights

Corporate Governance Specialist

Form 144 reports insider disposals and scheduled equity awards transfers.

The filing records two completed dispositions by James Blackie, including 16,000 shares on 12/30/2025 for $127,360.00 and 240 shares on 02/10/2026 for $1,903.54. These are ordinary Section 16 disposition notices.

It also lists issuer transfers of equity awards dated 03/01/2026: 3,932 performance shares and 16,345 restricted stock units. Timing and cash‑flow treatment for those issuer transfers are described as issuer actions in the excerpt.

FAQ

What sales does ONTF Form 144 show for James Blackie?

The Form 144 shows two sales: 16,000 shares on 12/30/2025 for $127,360.00 and 240 shares on 02/10/2026 for $1,903.54. These amounts and dates are listed verbatim in the filing excerpt.

Does the filing disclose planned equity transfers for ONTF on 03/01/2026?

Yes. The excerpt lists issuer transfers dated 03/01/2026 of 3,932 performance shares and 16,345 restricted stock units. The filing identifies these as issuer actions on that date.

Who is the broker or agent noted in the Form 144 for these transactions?

The filing names Morgan Stanley Smith Barney LLC with an address at 1 New York Plaza, 8th Floor, New York, NY 10004. That broker is listed under the securities information section in the excerpt.

Are proceeds from the listed sales shown in the Form 144 excerpt?

Yes. Proceeds are shown for each reported sale: $127,360.00 for the 16,000 share sale on 12/30/2025 and $1,903.54 for the 240 share sale on 02/10/2026, as disclosed.

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Accepted by SEC EDGAR 03/02/2026 - 05:35 PM Learn about SEC filing dates

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	0001841671
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	ON24, INC.
SEC File Number	001-39965
Address of Issuer	301 Howard Street, Suite 1100 San Francisco CALIFORNIA 94105
Phone	(415) 369-8000
Name of Person for Whose Account the Securities are To Be Sold	JAMES BLACKIE
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	Officer

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	20277	162447.16	42282395	03/02/2026	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	03/01/2026	Performance Shares	Issuer			3932	03/01/2026	Not Applicable
Common	03/01/2026	Restricted Stock	Issuer			16345	03/01/2026	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 301 Howard Street, Suite 1100 San Francisco CA 94105	Common	02/10/2026	240	1903.54
JAMES BLACKIE 301 Howard Street, Suite 1100 San Francisco CA 94105	Common	12/30/2025	16000	127360.00

144: Remarks and Signature

Remarks
Date of Notice	03/02/2026
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	/s/ James Blackie
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)