Roblox (RBLX) legal chief sells 4,512 shares in pre-set 10b5-1 trades
Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4
Rhea-AI Filing Summary
Roblox Corp Chief Legal Officer Mark Reinstra reported open-market sales of Class A Common Stock made under a pre-arranged Rule 10b5-1 trading plan adopted on February 19, 2026. On July 6, 2026, he sold a total of 4,512 shares in three transactions at weighted average prices in ranges disclosed between $55.35 and $58.15 per share. Following these sales, he directly holds 426,560 Class A shares and also has additional indirect holdings through several family and annuity trusts for which he serves as trustee.
Positive
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InsiderReinstra Mark
RoleChief Legal Off. & Corp. Sec.
Sold4,512 shs ($259K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Class A Common Stock | 200 | $55.77 | $11K |
| Sale | Class A Common Stock | 3,212 | $57.2363 | $184K |
| Sale | Class A Common Stock | 1,100 | $57.9424 | $64K |
| holding | Class A Common Stock | — | — | — |
| holding | Class A Common Stock | — | — | — |
| holding | Class A Common Stock | — | — | — |
| holding | Class A Common Stock | — | — | — |
| holding | Class A Common Stock | — | — | — |
Holdings After Transaction:
Class A Common Stock — 426,560 shares (Direct, null);
Class A Common Stock — 128,006 shares (Indirect, See footnote)
Footnotes (1)
- The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on February 19, 2026. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.35 to $56.19, inclusive. The Reporting Person undertakes to
provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price
within the range set forth in this footnote. A portion of these securities are Restricted Stock Units (“RSUs”). Each RSU represents a contingent right to receive one share of the Issuer’s Class A Common Stock. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.75 to $57.74, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.75 to $58.15, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. On June 17, 2026, the Reporting Person transferred 3,867 shares of the Issuer’s Class A Common Stock from the Susan P. Reinstra 2022 Annuity Trust and 3,867 shares of Class A Common Stock from the Mark L. Reinstra 2022 Annuity Trust to the San Domenico Trust dated August 12, 1999. These shares are held directly by the San Domenico Trust dated August 12, 1999 for which the Reporting Person serves as trustee. The Reporting Person may be deemed to have beneficial ownership over the securities held by the trust. These shares are held directly by the Mark L. Reinstra 2022 Annuity Trust for which the Reporting Person serves as trustee. The Reporting Person may be deemed to have beneficial ownership of the securities held by the Annuity Trust. These shares are held directly by the Susan P. Reinstra 2022 Annuity Trust for which the Reporting Person serves as trustee. The spouse of the Reporting Person may be deemed to have beneficial ownership of the securities held by the Annuity Trust. These shares are held directly by the Mark L. Reinstra 2023 Annuity Trust for which the Reporting Person serves as trustee. The Reporting Person may be deemed to have beneficial ownership of the securities held by the Annuity Trust. These shares are held directly by the Susan P. Reinstra 2023 Annuity Trust for which the Reporting Person serves as trustee. The spouse of the Reporting Person may be deemed to have beneficial ownership of the securities held by the Annuity Trust.
Shares sold (total)4,512 sharesClass A Common Stock sold on July 6, 2026
First trade size1,100 sharesOpen-market sale of Class A Common Stock
Second trade size3,212 sharesOpen-market sale of Class A Common Stock
Third trade size200 sharesOpen-market sale of Class A Common Stock
Sale price (example)$57.9424 per shareWeighted average price for one sale tranche
Direct holdings after trades426,560 sharesClass A Common Stock held directly after July 6, 2026
San Domenico Trust holdings128,006 sharesIndirect Class A Common Stock held via trust
Rule 10b5-1 Planregulatory
“The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on February 19, 2026.”
A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.
Restricted Stock Units (“RSUs”)financial
“A portion of these securities are Restricted Stock Units (“RSUs”). Each RSU represents a contingent right to receive one share of the Issuer’s Class A Common Stock.”
Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.
beneficial ownershipregulatory
“The Reporting Person may be deemed to have beneficial ownership over the securities held by the trust.”
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
Annuity Trustfinancial
“These shares are held directly by the Mark L. Reinstra 2022 Annuity Trust for which the Reporting Person serves as trustee.”
weighted average pricefinancial
“The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.35 to $56.19, inclusive.”
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
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Form 4 Insider Transactions: What Each Field Means →
Available on EDGAR 07/07/2026 – 04:31 PM
Accepted by SEC EDGAR 07/07/2026 – 04:30 PM
Learn about SEC filing dates
SEC Form 4
| FORM 4 | UNITED STATES SECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIPFiled pursuant to Section 16(a) of the Securities Exchange Act of 1934or Section 30(h) of the Investment Company Act of 1940 |
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| Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). |
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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*
(Street)
(Country) |
2. Issuer Name and Ticker or Trading SymbolRoblox Corp [ RBLX ] |
5. Relationship of Reporting Person(s) to Issuer(Check all applicable)
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| 2a. Foreign Trading Symbol | |||||||||||||||||||||
| 3. Date of Earliest Transaction (Month/Day/Year)07/06/2026 |
6. Individual or Joint/Group Filing (Check Applicable Line)
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| 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 | |||
| Class A Common Stock | 07/06/2026 | S(1) | 200 | D | $55.77(2) | 426,560(3) | D |
| Class A Common Stock | 07/06/2026 | S(1) | 3,212 | D | $57.2363(4) | 423,348(3) | D |
| Class A Common Stock | 07/06/2026 | S(1) | 1,100 | D | $57.9424(5) | 422,248(3) | D |
| Class A Common Stock | 128,006(6) | I | See footnote(7) | ||||
| Class A Common Stock | 12,786(6) | I | See Footnote(8) | ||||
| Class A Common Stock | 12,786(6) | I | See Footnote(9) | ||||
| Class A Common Stock | 33,538 | I | See footnote(10) | ||||
| Class A Common Stock | 33,538 | I | See footnote(11) |
| 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 transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan adopted by the Reporting Person on February 19, 2026. |
| 2. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.35 to $56.19, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |
| 3. A portion of these securities are Restricted Stock Units (“RSUs”). Each RSU represents a contingent right to receive one share of the Issuer’s Class A Common Stock. |
| 4. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.75 to $57.74, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |
| 5. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.75 to $58.15, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |
| 6. On June 17, 2026, the Reporting Person transferred 3,867 shares of the Issuer’s Class A Common Stock from the Susan P. Reinstra 2022 Annuity Trust and 3,867 shares of Class A Common Stock from the Mark L. Reinstra 2022 Annuity Trust to the San Domenico Trust dated August 12, 1999. |
| 7. These shares are held directly by the San Domenico Trust dated August 12, 1999 for which the Reporting Person serves as trustee. The Reporting Person may be deemed to have beneficial ownership over the securities held by the trust. |
| 8. These shares are held directly by the Mark L. Reinstra 2022 Annuity Trust for which the Reporting Person serves as trustee. The Reporting Person may be deemed to have beneficial ownership of the securities held by the Annuity Trust. |
| 9. These shares are held directly by the Susan P. Reinstra 2022 Annuity Trust for which the Reporting Person serves as trustee. The spouse of the Reporting Person may be deemed to have beneficial ownership of the securities held by the Annuity Trust. |
| 10. These shares are held directly by the Mark L. Reinstra 2023 Annuity Trust for which the Reporting Person serves as trustee. The Reporting Person may be deemed to have beneficial ownership of the securities held by the Annuity Trust. |
| 11. These shares are held directly by the Susan P. Reinstra 2023 Annuity Trust for which the Reporting Person serves as trustee. The spouse of the Reporting Person may be deemed to have beneficial ownership of the securities held by the Annuity Trust. |
| Remarks: |
| /s/ Mark Reinstra | 07/07/2026 |
| ** 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 (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). |
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| Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. |
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| 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) |
FAQ
What insider transactions did Roblox (RBLX) report for Mark Reinstra?
Roblox reported that Chief Legal Officer Mark Reinstra sold 4,512 shares of Class A Common Stock on July 6, 2026. The sales were executed in three open-market transactions at weighted average prices within specified ranges around the mid-$50s per share.
What indirect Roblox (RBLX) holdings are associated with Mark Reinstra?
Indirect holdings are reported in several trusts, including the San Domenico Trust and multiple 2022 and 2023 Annuity Trusts. The filing notes he serves as trustee and may be deemed to have beneficial ownership over securities held by these trusts, reflecting additional indirect exposure.
