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Proteostasis Therapeutics, Inc. Institutional Ownership

PTI 
$0.6989
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0.0416
6.33%
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Exchange:NASDAQ
Industry: Health Care
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Ownership Summary Institutional Holdings Insiders
(SEC Form 4)
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Ownership Summary as reported in the most recent 13F filings


Institutional Ownership 45.30%
Total Shares Outstanding (millions) 51
Total Value of Holdings (millions) $15

Active Positions

Holders Shares
Increased Positions 22 1,815,651
Decreased Positions 55 9,134,827
Held Positions 10 12,211,320
Total Institutional Shares 87 23,161,798

New and Sold Out Positions


Holders Shares
New Positions 8 1,210,121
Sold Out Positions 27 3,289,442

87 Institutional Holders
23,161,798 Total Shares Held


Click on the column header links to resort ascending (▲) or descending (▼).


Owner Name Date Shares Held Change (Shares) Change (%) Value (in 1,000s)
NEA MANAGEMENT COMPANY, LLC 06/30/2019 5,556,778 0 0.00 3,651
WELLINGTON MANAGEMENT GROUP LLP 06/30/2019 5,077,633 24,467 .48 3,336
GREAT POINT PARTNERS I LP 06/30/2019 3,500,000 0 0.00 2,300
BLACKROCK INC. 06/30/2019 1,571,199 (1,513,866) (49.07) 1,032
VANGUARD GROUP INC 06/30/2019 1,055,265 (898,999) (46) 693
MACQUARIE GROUP LTD 06/30/2019 752,319 2,319 .31 494
HARBOURVEST PARTNERS LLC 06/30/2019 440,627 0 0.00 289
GEODE CAPITAL MANAGEMENT, LLC 06/30/2019 417,176 (44,160) (9.57) 274
ROCK SPRINGS CAPITAL MANAGEMENT LP 06/30/2019 400,000 0 0.00 263
ACADIAN ASSET MANAGEMENT LLC 06/30/2019 373,324 142,446 61.70 245
NORTHERN TRUST CORP 06/30/2019 365,049 (24,582) (6.31) 240
MILLENNIUM MANAGEMENT LLC 06/30/2019 282,216 101,300 55.99 185
TWO SIGMA INVESTMENTS, LP 06/30/2019 234,518 234,518 New 154
BAIN CAPITAL PUBLIC EQUITY MANAGEMENT, LLC 03/31/2019 231,418 231,418 New 152
VHCP MANAGEMENT III, LLC 06/30/2019 221,267 (501,623) (69.39) 145

Institutional Holdings information for this company is filed by major institutions on form 13-F with the Securities and Exchange Commission.
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