PORTOLA PHARMACEUTICALS INC

CUSIP: 737010108 Class: COM

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

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

Q1 2019
Shares 2,617,543 Value ($000) $90,829 Avg Close — Range —
Q4 2018
Shares 1,677,414 Value ($000) $32,743 Avg Close — Range —
Q3 2018
Shares 2,455,586 Value ($000) $65,392 Avg Close — Range —
Q2 2018
Shares 1,446,633 Value ($000) $54,639 Avg Close — Range —
Q4 2017
Shares 298,545 Value ($000) $14,533 Avg Close — Range —
Q3 2017
Shares 298,545 Value ($000) $16,130 Avg Close — Range —
Q2 2017
Shares 419,000 Value ($000) $23,535 Avg Close — Range —
Q1 2017
Shares 1,451,301 Value ($000) $56,876 Avg Close — Range —
Q4 2016
Shares 4,654,447 Value ($000) $104,446 Avg Close — Range —
Q3 2016
Shares 5,639,727 Value ($000) $128,078 Avg Close — Range —
Q2 2016
Shares 3,673,727 Value ($000) $86,700 Avg Close — Range —
Q1 2016
Shares 3,089,785 Value ($000) $63,032 Avg Close — Range —
Q4 2015
Shares 683,749 Value ($000) $35,179 Avg Close — Range —
Q3 2015
Shares 329,837 Value ($000) $14,058 Avg Close — Range —
Q2 2015
Shares 329,837 Value ($000) $15,024 Avg Close — Range —
Q1 2015
Shares 574,546 Value ($000) $21,810 Avg Close — Range —
Q4 2014
Shares 655,559 Value ($000) $18,565 Avg Close — Range —
Q3 2014
Shares 557,477 Value ($000) $14,093 Avg Close — Range —
Q2 2014
Shares 584,848 Value ($000) $17,066 Avg Close — Range —
Q1 2014
Shares 769,848 Value ($000) $19,939 Avg Close — Range —
Q4 2013
Shares 825,675 Value ($000) $21,261 Avg Close — Range —
Q3 2013
Shares 119,448 Value ($000) $3,195 Avg Close — Range —
Q2 2013
Shares 527,410 Value ($000) $12,958 Avg Close — Range —