FilingsForm 4

Roblox chief legal officer Mark Reinstra sold 22,735 shares for $1.04 million

From the public record1 min read

Published Oct 20, 2026 · 08:33 UTCFiled May 22, 2026

Value$1.04 million

Shares22,735

Average price$45.55

FiledMay 22

Written by Claude Sonnet 5.5, an AI model, from public records. Each figure in it was checked automatically against the source's text or our database before it was published.

Mark Reinstra, Roblox's chief legal officer and corporate secretary, sold 22,735 shares for $1.04 million on May 20 and May 21, 2026, at an average of $45.55 a share. A footnote says the shares sold on May 20 were sold to cover tax withholding when certain restricted stock units and performance stock units vested, under a mandatory sell-to-cover arrangement in the company's equity plan. Another footnote, attached to the sales on May 21, says the transactions reported on the form were made under a Rule 10b5-1 plan, a trading plan set up in advance, which he adopted on Feb 19, 2026. The Form 4, the form an insider files when trading the company's shares, was filed on May 22, 2026 and is on SEC EDGAR.1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

How each figure was checked15 facts

who traded, as the form names the ownerMark ReinstraOur database
the owner's role at the companyofficer (Chief Legal Off. & Corp. Sec.)Our database
shares sold in the form's sale lines22,735Our database
value of the sale lines$1.04 millionOur database
date of the first sale lineMay 20, 2026Our database
date of the last sale lineMay 21, 2026Our database
average price per share$45.55Our database
sale line 1sale (code S): 1,903 shares disposed on May 20, 2026 at $44.4758 per share; held directly; 453,570 owned after the lineOur database
sale line 2sale (code S): 15,372 shares disposed on May 20, 2026 at $45.3768 per share; held directly; 438,198 owned after the lineOur database
footnote F1 (lines 1 and 2): the sales covered tax withholding on vesting RSUs and PSUsSEC EDGAR, Form 4 footnotes ↗
footnote F1: a mandatory sell-to-cover arrangement under the equity plan, not a discretionary transaction by the ownerSEC EDGAR, Form 4 footnotes ↗
footnote F5: the Rule 10b5-1 plan and the day it was adoptedFebruary 19, 2026SEC EDGAR, Form 4 footnotes ↗
sale line 3, which carries footnote F5sale (code S): 561 shares disposed on May 21, 2026 at $45.9302 per share; held directly; 437,637 owned after the lineOur database
sale line 4, which carries footnote F5sale (code S): 4,899 shares disposed on May 21, 2026 at $46.4564 per share; held directly; 432,738 owned after the lineOur database
date the Form 4 was filedMay 22, 2026Our database

The record

Issuer: Roblox (CIK 1315098, filed as Roblox Corp)
Form: 4
Accession: 0001315098-26-000118
Filed: May 22, 2026
Period of report: May 20, 2026
Reporting owner: Mark Reinstra (CIK 1835037, filed as Reinstra Mark)
Relationship: officer (Chief Legal Off. & Corp. Sec.)
Rule 10b5-1 checkbox: Ticked
Line 1: S (sale) · 1,903 Class A Common Stock at $44.4758 · May 20, 2026 · disposed, directly · 453,570 held after · footnotes F1, F2 and F3
Line 2: S (sale) · 15,372 Class A Common Stock at $45.3768 · May 20, 2026 · disposed, directly · 438,198 held after · footnotes F1, F3 and F4
Line 3: S (sale) · 561 Class A Common Stock at $45.9302 · May 21, 2026 · disposed, directly · 437,637 held after · footnotes F3, F5 and F6
Line 4: S (sale) · 4,899 Class A Common Stock at $46.4564 · May 21, 2026 · disposed, directly · 432,738 held after · footnotes F3, F5 and F7
Footnote F1: Represents the number of shares sold to cover statutory tax withholding obligations arising in connection with the vesting of certain Restricted Stock Units ("RSUs") and Performance Stock Units ("PSUs"). These shares were sold pursuant to a mandatory "sell-to-cover" arrangement under the Issuer's equity incentive plan to satisfy tax withholding obligations and do not represent a discretionary transaction by the Reporting Person.
Footnote F2: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.92 to $44.91, 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.
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.
Footnote F4: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $44.92 to $45.89, 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.
Footnote F5: 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.
Footnote F6: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.15 to $46.145, 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.
Footnote F7: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $46.15 to $46.92, 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.
Footnote F8: 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.
Footnote F9: 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.
Footnote F10: 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.
Footnote F11: 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.
Footnote F12: 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.