PROTEOSTASIS THERAPEUTICS IN

CUSIP: 74373B109 Class: COM

HARBOURVEST PARTNERS LLC's Holding History (CIK: 0001201001)

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

Q3 2020
Shares 440,627 Value ($000) $485 Avg Close — Range —
Q2 2020
Shares 440,627 Value ($000) $604 Avg Close — Range —
Q1 2020
Shares 440,627 Value ($000) $502 Avg Close — Range —
Q4 2019
Shares 440,627 Value ($000) $1,005 Avg Close — Range —
Q3 2019
Shares 440,627 Value ($000) $372 Avg Close — Range —
Q2 2019
Shares 440,627 Value ($000) $430 Avg Close — Range —
Q1 2019
Shares 440,627 Value ($000) $555 Avg Close — Range —
Q4 2018
Shares 440,627 Value ($000) $1,428 Avg Close — Range —
Q3 2018
Shares 440,627 Value ($000) $1,062 Avg Close — Range —
Q2 2018
Shares 440,627 Value ($000) $1,229 Avg Close — Range —
Q1 2018
Shares 440,627 Value ($000) $2,093 Avg Close — Range —
Q4 2017
Shares 440,627 Value ($000) $2,569 Avg Close — Range —
Q3 2017
Shares 440,627 Value ($000) $925 Avg Close — Range —
Q2 2017
Shares 440,627 Value ($000) $2,062 Avg Close — Range —
Q1 2017
Shares 440,627 Value ($000) $3,446 Avg Close — Range —