1RT ACQUISITION CORP.

Ticker: ONCH CUSIP: G6757R105 Class: USD CL A ORD SHS

Clear Street Group Inc.'s Holding History (CIK: 0001881567)

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

Q4 2025

Shares 65,260 Value ($000) $666 Avg Close $10.30 Range $10.16 - $10.50

Q3 2025

Shares 13,560 Value ($000) $142 Avg Close $10.28 Range $10.18 - $10.63

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	65,260	$666	$10.30	$10.16 - $10.50
Q3 2025	13,560	$142	$10.28	$10.18 - $10.63