RUSH STREET INTERACTIVE INC

Ticker: RSI CUSIP: 782011100 Class: Common Stock

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 536,698 Value ($000) $10,428 Avg Close $18.48 Range $16.10 - $20.82

Q3 2025

Shares 800,747 Value ($000) $16,399 Avg Close $18.86 Range $14.38 - $22.65

Q2 2025

Shares 608,086 Value ($000) $9,060 Avg Close $12.41 Range $9.66 - $14.94

Q1 2025

Shares 487,178 Value ($000) $5,223 Avg Close $13.15 Range $9.54 - $16.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	536,698	$10,428	$18.48	$16.10 - $20.82
Q3 2025	800,747	$16,399	$18.86	$14.38 - $22.65
Q2 2025	608,086	$9,060	$12.41	$9.66 - $14.94
Q1 2025	487,178	$5,223	$13.15	$9.54 - $16.78