[144] ON24, Inc. SEC Filing

Rhea-AI Filing Summary

ON24 (ONTF) filed a Form 144 notifying of a proposed sale of 37,982 common shares with an aggregate market value of $187,251.26. The shares are listed as approximate sale date 08/11/2025 on the NYSE and the issuer's total shares outstanding are reported as 42,306,290. The filing states these shares were acquired on 08/11/2025 by exercise of stock options and paid for in cash, and the same number appears in the securities-to-be-sold table.

The filing also discloses multiple sales in the prior three months attributed to Sharat Sharan, including several 10b5-1 plan sales with share amounts and gross proceeds listed. The form includes the standard representation about material nonpublic information and references Rule 10b5-1 where applicable.

Positive

• None.

Negative

• Proposed insider sale of 37,982 shares valued at $187,251.26, disclosed on Form 144.
• Multiple insider dispositions in the prior three months by Sharat Sharan totaling several transactions (listed amounts include 37,784; 61,467; 37,527; 6,369; 31,305 shares).

Insights

Corporate Governance Expert

TL;DR: Insider intends to sell shares acquired by option exercise; multiple recent 10b5-1 sales are disclosed, suggesting planned dispositions.

The Form 144 reports a proposed sale of 37,982 common shares acquired via stock option exercise and to be sold on the NYSE. The filing explicitly lists several prior sales over the past three months by Sharat Sharan, some labeled as 10b5-1, indicating prearranged trading activity rather than ad-hoc disposals. From a governance perspective, the presence of 10b5-1 sales is relevant because it documents a pre-established plan, while the current entry shows immediate acquisition and notice of proposed sale. The filing is factual and procedural; it does not provide any nonpublic operational or financial information.

Securities Analyst

TL;DR: This is a routine insider notice showing option exercise followed by an intended sale and several recent insider sell transactions.

The transaction described is the exercise of stock options on 08/11/2025 with cash payment and a corresponding Form 144 notice to sell 37,982 shares valued at $187,251.26, to be executed on NYSE. The filing documents recent dispositions totaling multiple transactions by Sharat Sharan in the prior three months, with individual gross proceeds listed. The form supplies transaction-level detail but contains no operational or earnings data that would otherwise affect valuation models.

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	37982	187251.26	42306290	08/11/2025	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	08/11/2025	Exercise of Stock Options	Issuer			37982	08/11/2025	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
10b5-1 Sales for SHARAT SHARAN 50 Beale Street, 8th Floor San Francisco CA 94105	Common	07/14/2025	37784	195124.13
SHARAT SHARAN 50 Beale Street, 8th Floor San Francisco CA 94105	Common	06/30/2025	61467	336009.36
10b5-1 Sales for SHARAT SHARAN 50 Beale Street, 8th Floor San Francisco CA 94105	Common	06/17/2025	37527	202180.47
10b5-1 Sales for SHARAT SHARAN 50 Beale Street, 8th Floor San Francisco CA 94105	Common	05/23/2025	6369	34507.24
10b5-1 Sales for SHARAT SHARAN 50 Beale Street, 8th Floor San Francisco CA 94105	Common	05/22/2025	31305	170170.85

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 securities does ONTF plan to sell under this Form 144?

Common shares: 37,982 with aggregate market value $187,251.26, approximate sale date 08/11/2025 on the NYSE.

How were the securities acquired that are to be sold?

Acquired by exercise of stock options on 08/11/2025 and paid in cash according to the filing.

Who sold shares in the past three months according to the filing?

Sharat Sharan is named on multiple past sales, including several listed as 10b5-1 sales with dates and gross proceeds provided in the form.

Does the filing reference a Rule 10b5-1 trading plan for these sales?

The filing labels several prior transactions as 10b5-1 sales, but no plan adoption date for the current notice is provided in the form.

How many shares outstanding does the filing report for the issuer?

The form reports 42,306,290 shares outstanding for the issuer.