RECEPTOS INC

CUSIP: 756207106 Class: COMMON STOCK

VIKING GLOBAL INVESTORS LP's Holding History (CIK: 0001103804)

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

Q2 2015
Shares 1,156,900 Value ($000) $219,869 Avg Close — Range —
Q1 2015
Shares 951,078 Value ($000) $156,823 Avg Close — Range —
Q4 2014
Shares 511,981 Value ($000) $62,723 Avg Close — Range —