PROTEOSTASIS THERAPEUTICS IN

CUSIP: 74373B109 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q3 2020
Shares 80,710 Value ($000) $89 Avg Close — Range —
Q2 2020
Shares 75,461 Value ($000) $104 Avg Close — Range —
Q1 2020
Shares 78,258 Value ($000) $89 Avg Close — Range —
Q4 2019
Shares 74,379 Value ($000) $170 Avg Close — Range —
Q3 2019
Shares 79,975 Value ($000) $67 Avg Close — Range —
Q2 2019
Shares 365,049 Value ($000) $356 Avg Close — Range —
Q1 2019
Shares 389,631 Value ($000) $490 Avg Close — Range —
Q4 2018
Shares 385,756 Value ($000) $1,250 Avg Close — Range —
Q3 2018
Shares 271,583 Value ($000) $654 Avg Close — Range —
Q2 2018
Shares 269,451 Value ($000) $752 Avg Close — Range —
Q1 2018
Shares 43,034 Value ($000) $204 Avg Close — Range —
Q4 2017
Shares 23,618 Value ($000) $138 Avg Close — Range —
Q3 2017
Shares 34,292 Value ($000) $72 Avg Close — Range —
Q2 2017
Shares 37,492 Value ($000) $175 Avg Close — Range —
Q1 2017
Shares 108,034 Value ($000) $844 Avg Close — Range —
Q4 2016
Shares 103,524 Value ($000) $1,269 Avg Close — Range —
Q3 2016
Shares 81,660 Value ($000) $1,273 Avg Close — Range —
Q2 2016
Shares 80,892 Value ($000) $981 Avg Close — Range —
Q1 2016
Shares 10,003 Value ($000) $96 Avg Close — Range —