REGULUS THERAPEUTICS INC

CUSIP: 75915K101 Class: COM

AMERICAN CENTURY COMPANIES INC's Holding History (CIK: 0000748054)

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

Q1 2014
Shares 15,693 Value ($000) $142 Avg Close — Range —
Q4 2013
Shares 22,415 Value ($000) $166 Avg Close — Range —