MOONLAKE IMMUNOTHERAPEUTICS

Ticker: MLTX CUSIP: 61559X104 Class: Common Stock

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2025

Shares 30,476 Value ($000) $402 Avg Close $11.80 Range $6.56 - $15.55

Q3 2025

Shares 15,469 Value ($000) $111 Avg Close $52.12 Range $5.95 - $62.75

Q2 2024

Shares 6,832 Value ($000) $300 Avg Close $42.36 Range $37.55 - $50.28

Q1 2024

Shares 13,520 Value ($000) $679 Avg Close $54.24 Range $42.43 - $64.98

Q3 2023

Shares 4,234 Value ($000) $241 Avg Close $55.20 Range $47.33 - $63.40

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	30,476	$402	$11.80	$6.56 - $15.55
Q3 2025	15,469	$111	$52.12	$5.95 - $62.75
Q2 2024	6,832	$300	$42.36	$37.55 - $50.28
Q1 2024	13,520	$679	$54.24	$42.43 - $64.98
Q3 2023	4,234	$241	$55.20	$47.33 - $63.40