PROTEOSTASIS THERAPEUTICS IN - COM (PTI) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2016 to Q4 2020

Type / Class
Equity / COM
Symbol
PTI
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Institutional Holders of PROTEOSTASIS THERAPEUTICS IN - COM (PTI) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2020 Q4 0 $0 -$12,407,165 0
2020 Q3 11,289,722 $12,411,165 +$2,487,487 $1.10 39
2020 Q2 8,679,431 $11,887,247 -$2,639,774 $1.37 47
2020 Q1 11,016,657 $12,563,413 -$1,124,687 $1.14 41
2019 Q4 11,324,447 $25,803,825 -$626,053 $2.28 47
2019 Q3 21,209,114 $17,917,491 -$1,446,614 $0.84 47
2019 Q2 22,814,346 $22,253,031 -$8,615,104 $0.98 55
2019 Q1 30,727,223 $38,716,372 -$30,222,202 $1.26 78
2018 Q4 39,770,789 $128,860,905 +$52,716,701 $3.24 85
2018 Q3 23,129,767 $55,741,345 -$1,670,064 $2.41 54
2018 Q2 23,700,129 $66,119,789 -$7,631,209 $2.79 58
2018 Q1 24,282,553 $115,340,713 -$3,854,371 $4.75 52
2017 Q4 23,711,819 $138,237,000 +$40,065,880 $5.83 52
2017 Q3 17,150,443 $35,949,000 -$3,665,932 $2.10 38
2017 Q2 18,457,359 $86,598,000 -$4,226,710 $4.68 49
2017 Q1 18,984,012 $148,590,071 +$6,661,039 $7.82 60
2016 Q4 17,220,009 $211,113,995 +$9,671,156 $12.26 55
2016 Q3 16,030,564 $249,910,077 +$98,801,022 $15.59 59
2016 Q2 9,714,313 $117,833,102 +$12,345,696 $12.13 41
2016 Q1 8,701,381 $83,880,000 +$83,880,000 $9.64 21