BIO RAD LABS INC

Ticker: BIO CUSIP: 090572207 Class: COM

Senator Investment Group LP's Holding History (CIK: 0001443689)

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

Q4 2013

Shares 86,500 Value ($000) $10,692 Avg Close $121.86 Range $115.25 - $125.00

Q3 2013

Shares 531,000 Value ($000) $62,424 Avg Close $117.94 Range $111.49 - $126.98

Q2 2013

Shares 510,000 Value ($000) $57,222 Avg Close $117.30 Range $110.02 - $127.17

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2013	86,500	$10,692	$121.86	$115.25 - $125.00
Q3 2013	531,000	$62,424	$117.94	$111.49 - $126.98
Q2 2013	510,000	$57,222	$117.30	$110.02 - $127.17