PROTEOSTASIS THERAPEUTICS IN

CUSIP: 74373B109 Class: COM

CENTRAL TRUST Co's Holding History (CIK: 0000044365)

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

Q2 2020
Shares 480 Value ($000) $0 Avg Close — Range —
Q1 2020
Shares 480 Value ($000) $0 Avg Close — Range —
Q4 2019
Shares 480 Value ($000) $1 Avg Close — Range —