QUANTUM COMPUTING INC

Ticker: QUBT CUSIP: 74766W108 Class: Common Stock

ROTHSCHILD INVESTMENT LLC's Holding History (CIK: 0000085338)

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

Q4 2025

Shares 472 Value ($000) $5 Avg Close $14.23 Range $9.50 - $25.84

Q3 2025

Shares 420 Value ($000) $8 Avg Close $17.16 Range $13.72 - $23.98

Q2 2025

Shares 290 Value ($000) $6 Avg Close $11.02 Range $5.76 - $21.73

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	472	$5	$14.23	$9.50 - $25.84
Q3 2025	420	$8	$17.16	$13.72 - $23.98
Q2 2025	290	$6	$11.02	$5.76 - $21.73