GRAIL INC

Ticker: GRAL CUSIP: 384747101 Class: Common Stock

PRIMECAP MANAGEMENT CO/CA/'s Holding History (CIK: 0000763212)

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

Q4 2025

Shares 1,838,684 Value ($000) $157,373 Avg Close $86.40 Range $58.50 - $115.76

Q3 2025

Shares 2,020,940 Value ($000) $119,498 Avg Close $38.21 Range $29.95 - $59.70

Q2 2025

Shares 2,054,286 Value ($000) $105,631 Avg Close $36.20 Range $20.44 - $52.56

Q1 2025

Shares 2,051,572 Value ($000) $52,397 Avg Close $30.90 Range $16.56 - $63.99

Q4 2024

Shares 2,079,416 Value ($000) $37,118 Avg Close $16.26 Range $12.33 - $24.92

Q3 2024

Shares 2,182,506 Value ($000) $30,031 Avg Close $15.16 Range $12.56 - $21.47

Q2 2024

Shares 1,865,276 Value ($000) $28,669 Avg Close $16.22 Range $12.51 - $23.36

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,838,684	$157,373	$86.40	$58.50 - $115.76
Q3 2025	2,020,940	$119,498	$38.21	$29.95 - $59.70
Q2 2025	2,054,286	$105,631	$36.20	$20.44 - $52.56
Q1 2025	2,051,572	$52,397	$30.90	$16.56 - $63.99
Q4 2024	2,079,416	$37,118	$16.26	$12.33 - $24.92
Q3 2024	2,182,506	$30,031	$15.16	$12.56 - $21.47
Q2 2024	1,865,276	$28,669	$16.22	$12.51 - $23.36