ARATANA THERAPEUTICS INC

CUSIP: 03874P101 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q2 2019
Shares 74,479 Value ($000) $384 Avg Close Range
Q1 2019
Shares 72,549 Value ($000) $261 Avg Close Range
Q4 2018
Shares 72,549 Value ($000) $445 Avg Close Range
Q3 2018
Shares 68,343 Value ($000) $399 Avg Close Range
Q2 2018
Shares 68,343 Value ($000) $290 Avg Close Range
Q1 2018
Shares 63,993 Value ($000) $282 Avg Close Range
Q4 2017
Shares 65,256 Value ($000) $343 Avg Close Range
Q3 2017
Shares 64,418 Value ($000) $395 Avg Close Range
Q2 2017
Shares 71,741 Value ($000) $519 Avg Close Range
Q1 2017
Shares 67,141 Value ($000) $356 Avg Close Range
Q4 2016
Shares 68,641 Value ($000) $493 Avg Close Range
Q3 2016
Shares 70,641 Value ($000) $661 Avg Close Range
Q2 2016
Shares 69,941 Value ($000) $442 Avg Close Range
Q1 2016
Shares 63,730 Value ($000) $352 Avg Close Range
Q4 2015
Shares 54,930 Value ($000) $307 Avg Close Range
Q3 2015
Shares 53,935 Value ($000) $456 Avg Close Range
Q2 2015
Shares 54,135 Value ($000) $819 Avg Close Range
Q1 2015
Shares 52,383 Value ($000) $839 Avg Close Range
Q4 2014
Shares 53,283 Value ($000) $950 Avg Close Range
Q3 2014
Shares 53,056 Value ($000) $533 Avg Close Range
Q2 2014
Shares 44,600 Value ($000) $696 Avg Close Range
Q1 2014
Shares 14,400 Value ($000) $267 Avg Close Range
Q4 2013
Shares 11,900 Value ($000) $227 Avg Close Range
Q3 2013
Shares 9,500 Value ($000) $155 Avg Close Range