REGULUS THERAPEUTICS INC

CUSIP: 75915K101 Class: COM

EcoR1 Capital, LLC's Holding History (CIK: 0001587114)

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

Q3 2017
Shares 5,239,225 Value ($000) $6,549 Avg Close — Range —
Q2 2017
Shares 3,709,144 Value ($000) $3,656 Avg Close — Range —
Q1 2017
Shares 1,510,000 Value ($000) $2,492 Avg Close — Range —