STETZ MATTIAS 4

What Happened

• Mattias Stetz, COO of Rush Street Interactive (RSI), was granted 35,423 restricted stock units (RSUs) on March 14, 2026 (grant reported at $0.00).
• On March 16, 2026, 27,173 shares were withheld at $20.25/share (value $550,253) to satisfy income tax withholding obligations in connection with the vesting/net settlement. The withholding is reported as a disposition (code F) but does not represent an open-market sale by Stetz.

Key Details

• Grant date: March 14, 2026 — 35,423 RSUs granted (acquisition, $0 per share).
• Withholding date: March 16, 2026 — 27,173 shares withheld at $20.25/share, total $550,253 (tax withholding; reported as disposed).
• Shares owned after transaction: not disclosed in the Form 4.
• Footnotes: F1 — RSUs vest in three equal annual installments starting on the first anniversary of the grant, subject to continued service. F2 — Withheld shares were retained by the issuer to satisfy tax obligations and do not represent a sale by the Reporting Person.
• Filing date: Form 4 filed March 17, 2026; the filing does not indicate a late report.

Context

• This was primarily an equity award (RSUs) with a routine net-settlement tax withholding. Net share withholding is common for RSU vesting and should not be interpreted as the insider selling shares on the open market. The RSUs vest over time, so additional shares may be issued or withheld in future vesting periods.