1RT ACQUISITION CORP.

Ticker: ONCHW CUSIP: G6757R113 Class: *W EXP 06/26/203

GRITSTONE ASSET MANAGEMENT LLC's Holding History (CIK: 0001964236)

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

Q4 2025
Shares 12,358 Value ($000) $7 Avg Close — Range —
Q3 2025
Shares 12,358 Value ($000) $11 Avg Close — Range —