Roblox legal chief sells 5,773 shares in plan
Roblox’s chief legal officer reported pre-planned open-market sales of 5,773 Class A shares under a Rule 10b5-1 trading plan.
Rhea-AI Filing Summary
Roblox Corp (RBLX) reported that Chief Legal Officer and Corporate Secretary Mark Reinstra sold Class A Common Stock on September 8, 2026. He sold 5,773 shares in open-market transactions at weighted average prices of $44.30 and $45.03, with individual trade prices ranging from $43.71 to $45.63. The sales were effected pursuant to a Rule 10b5-1 Plan adopted on February 19, 2026, and a portion of the remaining reported securities consists of Restricted Stock Units, each representing one share when settled. Additional shares are held indirectly through several trusts for which he serves as trustee, over which he may be deemed to have beneficial ownership.
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Insider Trade Summary 10b5-1
Net Seller: 5,773 shares
Net Sell
8 txns
Insider
Reinstra Mark
Role
Chief Legal Off. & Corp. Sec.
Sold
5,773 shs ($259K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Class A Common Stock F1, F2, F3 | 1,920 | $44.2957 | $85K |
| Sale | Class A Common Stock F1, F4, F3 | 3,753 | $45.0307 | $169K |
| Sale | Class A Common Stock F1, F3 | 100 | $45.73 | $5K |
| holding | Class A Common Stock F5 | -- | -- | -- |
| holding | Class A Common Stock F6 | -- | -- | -- |
| holding | Class A Common Stock F7 | -- | -- | -- |
| holding | Class A Common Stock F8 | -- | -- | -- |
| holding | Class A Common Stock F9 | -- | -- | -- |
Holdings After Transaction:
Class A Common Stock — 392,291 shares (Direct);
Class A Common Stock — 220,654 shares (Indirect, See footnote)
Footnotes (9)
- F1. 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.
- F2. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.71 to $44.67, 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.
- F3. 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.
- F4. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $44.71 to $45.63, 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.
- F5. 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.
- F6. 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.
- F7. 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.
- F8. 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.
- F9. 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.
Key Figures
Shares sold total: 5,773 shares
First trade shares and price: 1,920 shares at $44.2957 per share
Second trade shares and price: 3,753 shares at $45.0307 per share
+4 more
7 metrics
Shares sold total
5,773 shares
Total Class A Common Stock sold by Mark Reinstra on September 8, 2026
First trade shares and price
1,920 shares at $44.2957 per share
Open-market sale of Class A Common Stock on September 8, 2026
Second trade shares and price
3,753 shares at $45.0307 per share
Open-market sale of Class A Common Stock on September 8, 2026
Third trade shares and price
100 shares at $45.73 per share
Open-market sale of Class A Common Stock on September 8, 2026
Price range first weighted-average block
$43.71–$44.67
Range of prices for trades included in the 1,920-share weighted average
Price range second weighted-average block
$44.71–$45.63
Range of prices for trades included in the 3,753-share weighted average
Rule 10b5-1 plan adoption date
February 19, 2026
Date Mark Reinstra adopted the trading plan governing these sales
Key Terms
Rule 10b5-1 Plan, Restricted Stock Units ("RSUs"), weighted average price, beneficial ownership, +1 more
5 terms
Rule 10b5-1 Plan regulatory
"transactions were effected pursuant to a Rule 10b5-1 Plan adopted"
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")."
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.
weighted average price financial
"The price reported in column 4 is a weighted average price."
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.
beneficial ownership regulatory
"The Reporting Person may be deemed to have beneficial ownership"
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.
trustee other
"for which the Reporting Person serves as trustee."
A trustee is a person or institution legally appointed to hold and manage assets or enforce an agreement on behalf of other people (beneficiaries). Think of a trustee as a neutral referee or custodian who must act in the beneficiaries’ best interests, follow the trust or contract rules, and handle distributions, recordkeeping and enforcement. Investors care because a trustworthy trustee protects their rights, ensures promised payments or remedies are delivered, and can influence recoveries if things go wrong.
FAQ
What insider transaction did Roblox Corp (RBLX) report for Mark Reinstra?
Roblox reported that Mark Reinstra, its Chief Legal Officer and Corporate Secretary, sold 5,773 shares of Class A Common Stock on September 8, 2026 in open-market transactions at weighted average prices around $44.30 and $45.03, with trades spanning $43.71 to $45.63.
Were the RBLX stock sales by Mark Reinstra made under a Rule 10b5-1 plan?
Yes. The filing states the transactions were effected pursuant to a Rule 10b5-1 Plan adopted by Mark Reinstra on February 19, 2026, indicating the sales were conducted under a pre-arranged trading plan rather than being timed discretionarily.
What price ranges applied to the RBLX insider sales reported by Mark Reinstra?
For the 1,920-share sale, individual trades occurred between $43.71 and $44.67. For the 3,753-share sale, trades occurred between $44.71 and $45.63. The 100-share sale was reported at $45.73 per share.
Do the reported RBLX holdings include Restricted Stock Units (RSUs)?
Yes. A footnote explains that a portion of the reported securities are Restricted Stock Units ("RSUs"), with each RSU representing a contingent right to receive one share of Roblox’s Class A Common Stock upon settlement.
AI-generated analysis. How Rhea-AI works. Not financial advice.
