[144] ON24 INC. SEC Filing

Rhea-AI Filing Summary

Sharat Sharan32,093 shares with an aggregate market value of $179,720.80. The filing lists Morgan Stanley Smith Barney LLC as broker and an approximate sale date of 10/16/2025 on the NYSE.

The shares to be sold were acquired via exercise of stock options for cash on 10/16/2025. ON24 had 42,306,290 shares outstanding. Recent sales by the same seller over the past three months include 20,873 shares for $116,986.90 on 10/01/2025, 29,457 shares for $169,012.48 on 09/30/2025, and 32,159 shares for $178,501.75 on 09/16/2025 under a 10b5-1 plan.

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Securities law analyst

Routine Rule 144 sale notice; administrative and neutral.

This Form 144 outlines a proposed resale of ON24 common shares by a holder under Rule 144. It specifies $179,720.80 aggregate market value for 32,093 shares, an approximate sale date of 10/16/2025, and execution via Morgan Stanley Smith Barney LLC on the NYSE. The shares were obtained through a cash stock option exercise on 10/16/2025.

The notice also lists prior three-month sales with dated amounts and proceeds, indicating ongoing selling activity, including 10b5-1 plan transactions. Actual sales depend on market conditions and the holder’s decisions. This filing does not alter corporate fundamentals and is typically administrative.

10/16/2025 - 04:26 PM

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

Relationship to Issuer

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	32093	179720.80	42306290	10/16/2025	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	10/16/2025	Exercise of Stock Options	Issuer			32093	10/16/2025	Cash

* 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
SHARAT SHARAN 50 Beale Street, 8th Floor San Francisco CA 94105	Common	10/01/2025	20873	116986.90
SHARAT SHARAN 50 Beale Street, 8th Floor San Francisco CA 94105	Common	09/30/2025	29457	169012.48
10b5-1 Sales for SHARAT SHARAN 50 Beale Street, 8th Floor San Francisco CA 94105	Common	09/16/2025	32159	178501.75
10b5-1 Sales for SHARAT SHARAN 50 Beale Street, 8th Floor San Francisco CA 94105	Common	08/11/2025	37982	185090.08

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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 did the ON24 (ONTF) Form 144 disclose?

A proposed sale of 32,093 ONTF shares with an aggregate market value of $179,720.80, to be executed on or about 10/16/2025 on the NYSE.

Who is the seller named in the ONTF Form 144 and which broker is listed?

The seller is Sharat Sharan, and the broker listed is Morgan Stanley Smith Barney LLC.

How were the shares in the ONTF Form 144 acquired?

They were acquired via exercise of stock options for cash on 10/16/2025.

How many ON24 shares are outstanding according to the notice?

The notice lists 42,306,290 shares outstanding.

What recent sales by the seller were disclosed?

Sales include 20,873 shares for $116,986.90 on 10/01/2025, 29,457 shares for $169,012.48 on 09/30/2025, and 32,159 shares for $178,501.75 on 09/16/2025 under a 10b5-1 plan.

Which exchange is named for the proposed ONTF sale?

The NYSE is named as the exchange for the proposed sale.