WEYERHAEUSER CO

Ticker: WY CUSIP: 962166104 Class: COM NEW

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

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

Q4 2013

Shares 100,000 Value ($000) $3,157 Avg Close $18.82 Range $17.54 - $20.04

Q3 2013

Shares 100,000 Value ($000) $2,863 Avg Close $17.63 Range $16.55 - $18.56

Q2 2013

Shares 300,000 Value ($000) $8,547 Avg Close $18.73 Range $16.38 - $20.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2013	100,000	$3,157	$18.82	$17.54 - $20.04
Q3 2013	100,000	$2,863	$17.63	$16.55 - $18.56
Q2 2013	300,000	$8,547	$18.73	$16.38 - $20.64