YAHOO INC

CUSIP: 984332106 Class: COM

PFM Health Sciences, LP's Holding History (CIK: 0001442756)

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

Q1 2014
Shares 2,476,788 Value ($000) $88,917 Avg Close — Range —
Q1 2013
Shares 2,677,506 Value ($000) $62,999 Avg Close — Range —