GRAIL INC

Ticker: GRAL CUSIP: 384747101 Class: Common Stock

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2025

Shares 20,200 Value ($000) $1,729 Avg Close $86.40 Range $58.50 - $115.76

Q3 2025

Shares 15,756 Value ($000) $932 Avg Close $38.21 Range $29.95 - $59.70

Q2 2025

Shares 5,056 Value ($000) $260 Avg Close $36.20 Range $20.44 - $52.56

Q1 2025

Shares 16,182 Value ($000) $413 Avg Close $30.90 Range $16.56 - $63.99

Q3 2024

Shares 256,265 Value ($000) $3,526 Avg Close $15.16 Range $12.56 - $21.47

Q2 2024

Shares 80,946 Value ($000) $1,244 Avg Close $16.22 Range $12.51 - $23.36

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	20,200	$1,729	$86.40	$58.50 - $115.76
Q3 2025	15,756	$932	$38.21	$29.95 - $59.70
Q2 2025	5,056	$260	$36.20	$20.44 - $52.56
Q1 2025	16,182	$413	$30.90	$16.56 - $63.99
Q3 2024	256,265	$3,526	$15.16	$12.56 - $21.47
Q2 2024	80,946	$1,244	$16.22	$12.51 - $23.36