GRAIL INC

Ticker: GRAL CUSIP: 384747101 Class: Common Stock

Westmount Partners, LLC's Holding History (CIK: 0002051491)

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

Q4 2025

Shares 8,279 Value ($000) $709 Avg Close $86.40 Range $58.50 - $115.76

Q3 2025

Shares 8,129 Value ($000) $504 Avg Close $38.21 Range $29.95 - $59.70

Q2 2025

Shares 8,029 Value ($000) $413 Avg Close $36.20 Range $20.44 - $52.56

Q1 2025

Shares 8,029 Value ($000) $205 Avg Close $30.90 Range $16.56 - $63.99

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	8,279	$709	$86.40	$58.50 - $115.76
Q3 2025	8,129	$504	$38.21	$29.95 - $59.70
Q2 2025	8,029	$413	$36.20	$20.44 - $52.56
Q1 2025	8,029	$205	$30.90	$16.56 - $63.99