PORTOLA PHARMACEUTICALS INC

CUSIP: 737010108 Class: COM

Artisan Partners Limited Partnership's Holding History (CIK: 0001466153)

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

Q4 2015
Shares 222,833 Value ($000) $11,465 Avg Close — Range —
Q3 2015
Shares 200,973 Value ($000) $8,565 Avg Close — Range —
Q2 2015
Shares 181,411 Value ($000) $8,263 Avg Close — Range —
Q1 2015
Shares 116,640 Value ($000) $4,428 Avg Close — Range —