ISIS PHARMACEUTICALS INC DEL

CUSIP: 464337AG9 Class: NOTE 2.750%10/0

STEELHEAD PARTNERS LLC's Holding History (CIK: 0001133521)

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

Q4 2013
Shares 4,250,000 Value ($000) $10,572 Avg Close — Range —
Q3 2013
Shares 8,250,000 Value ($000) $19,346 Avg Close — Range —