PROTEOSTASIS THERAPEUTICS IN

CUSIP: 74373B109 Class: COM

RBF Capital, LLC's Holding History (CIK: 0001134621)

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

Q3 2020
Shares 166,078 Value ($000) $183 Avg Close — Range —
Q2 2020
Shares 166,078 Value ($000) $228 Avg Close — Range —
Q1 2020
Shares 166,078 Value ($000) $189 Avg Close — Range —
Q4 2019
Shares 104,353 Value ($000) $238 Avg Close — Range —