PORTOLA PHARMACEUTICALS INC

CUSIP: 737010108 Class: COM

BAKER BROS. ADVISORS LP's Holding History (CIK: 0001263508)

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

Q1 2014
Shares 182,591 Value ($000) $4,729 Avg Close — Range —
Q4 2013
Shares 224,434 Value ($000) $5,779 Avg Close — Range —
Q3 2013
Shares 299,911 Value ($000) $8,023 Avg Close — Range —
Q2 2013
Shares 399,914 Value ($000) $9,826 Avg Close — Range —