PROTEOSTASIS THERAPEUTICS IN

CUSIP: 74373B109 Class: COM

STRS OHIO's Holding History (CIK: 0000820478)

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

Q1 2017
Shares 5,000 Value ($000) $39 Avg Close — Range —
Q4 2016
Shares 5,000 Value ($000) $61 Avg Close — Range —
Q3 2016
Shares 5,000 Value ($000) $77 Avg Close — Range —
Q2 2016
Shares 2,100 Value ($000) $25 Avg Close — Range —