ON24 Insider Vattuone Files Form 4 on Ownership Change

TL;DR

**ON24 insider Steven Vattuone just reported a change in his stock ownership.**

AI Summary

Steven Vattuone, an insider at ON24 Inc., filed a Form 4 on March 24, 2026, indicating changes in his beneficial ownership of ON24 securities as of March 20, 2026. This filing is a routine disclosure required for company insiders and doesn't detail specific transactions, but rather signals that a change in his holdings has occurred. For investors, this matters because insider activity can sometimes signal management's confidence (or lack thereof) in the company's future, though the specific nature of the transaction (buy or sell) is not yet detailed in this summary filing.

Why It Matters

This filing indicates that an insider's stake in ON24 has changed, which can be a signal for investors about the company's future prospects, depending on whether the insider bought or sold shares.

Risk Assessment

Risk Level: low — This is a routine disclosure filing and does not inherently indicate high risk without knowing the details of the transaction.

Analyst Insight

A smart investor would await the full details of the Form 4 to determine if Steven Vattuone bought or sold shares, as this will provide more actionable insight into insider sentiment regarding ON24 Inc.'s future.

Key Players & Entities

• Vattuone Steven (person) — Reporting Person, insider at ON24 Inc.
• ON24 INC. (company) — Issuer of the securities
• 0001335061 (person) — CIK of Vattuone Steven
• 0001110611 (company) — CIK of ON24 INC.

FAQ

Key Financial Figures

• $8.06 — d in multiple transactions ranging from $8.06 to $8.075, inclusive. The reporting per
• $8 — iple transactions ranging from $8.06 to $8.075, inclusive. The reporting person un

Filing Documents

• primarydocument.html (4)
• primarydocument.xml (4) — 4KB
• 0001335061-26-000006.txt ( ) — 6KB

From the Filing

SEC FORM 4 SEC Form 4 FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940 OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5    Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). X Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10. 1. Name and Address of Reporting Person * Vattuone Steven (Last) (First) (Middle) C/O ON24, INC. 301 HOWARD STREET, SUITE 1100 (Street) SAN FRANCISCO CALIFORNIA 94105 (City) (State) (Zip) UNITED STATES (Country) 2. Issuer Name and Ticker or Trading Symbol ON24 INC. [ ONTF ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Chief Financial Officer 2a. Foreign Trading Symbol 3. Date of Earliest Transaction (Month/Day/Year) 03/20/2026 6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person 4. If Amendment, Date of Original Filed (Month/Day/Year) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 03/20/2026 S (1) (2) 3,429 D $ 8.0656 (3) 432,001 D Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Explanation of Responses: 1. The transaction reported in this Form 4 was effected pursuant to a Rule 10B5-1 trading plan adopted by the reporting person on August 7, 2024. 2. Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. 3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $8.06 to $8.075, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Security and Exchange Commission, upon request, full information regarding the number of shares sold in each separate price within the ranges set forth in footnote (3) to this Form 4. Remarks: /s/ Vattuone Steven by Charles Rogerson, as Attorney-in-Fact 03/24/2026 ** Signature of Reporting Person Date Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. * If the form is filed by more than one reporting person, see Instruction 4 (b)(v). ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number. * Form 4: SEC 1474 (03-26)

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