PROTEOSTASIS THERAPEUTICS IN (PTI)
Institutional ownership reported to the SEC as of Q3 2020, across 8 quarters.
40
Reporting holders
$12.7M
Reported value
1.5%
Calls
0.7%
Puts
-7
Holder change
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Ikarian Capital, LLC | $2.6M | 2,389,891 | 0.19% | new | NEW |
| VANGUARD GROUP INC | $2.0M | 1,781,171 | 0.00% | 8q | -2.5%-$51.1K |
| JENNISON ASSOCIATES LLC | $1.3M | 1,145,740 | 0.00% | new | NEW |
| BlackRock Inc. | $1.2M | 1,085,207 | 0.00% | 8q | HELD |
| MACQUARIE GROUP LTD | $825.0K | 750,000 | 0.00% | 8q | HELD |
| Bain Capital Public Equity Management II, LLC | $725.0K | 659,350 | 0.05% | 6q | -12.7%-$105.8K |
| HarbourVest Partners LLC | $485.0K | 440,627 | 0.18% | 8q | HELD |
| MILLENNIUM MANAGEMENT LLC | $445.0K | 404,398 | 0.00% | 3q | +663.5%+$386.7K |
| GEODE CAPITAL MANAGEMENT, LLC | $363.0K | 330,586 | 0.00% | 8q | HELD |
| ACADIAN ASSET MANAGEMENT LLC | $332.0K | 301,633 | 0.00% | 7q | -14.6%-$56.6K |
| Qube Research & Technologies Ltd | $319.0K | 290,207 | 0.00% | 2q | +411.6%+$256.6K |
| BRIDGEWAY CAPITAL MANAGEMENT INC | $297.0K | 270,000 | 0.01% | 5q | -15.6%-$55.0K |
| BOOTHBAY FUND MANAGEMENT, LLC | $288.0K | 262,108 | 0.02% | new | NEW |
| RENAISSANCE TECHNOLOGIES LLC | $259.0K | 235,263 | 0.00% | 2q | +24.2%+$50.5K |
| RBF Capital, LLC | $183.0K | 166,078 | 0.02% | 4q | HELD |
| TWO SIGMA ADVISERS, LP | $179.0K | 162,500 | 0.00% | 8q | -12.9%-$26.5K |
| GROUP ONE TRADING, L.P. | $133.0K | options only | 0.00% | 8q | OPTIONS |
| GSA CAPITAL PARTNERS LLP | $131.0K | 119,284 | 0.02% | 3q | +138.2%+$76.0K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $131.0K | 60,261 | 0.00% | 8q | -58.5%-$184.9K |
| NORTHERN TRUST CORP | $89.0K | 80,607 | 0.00% | 8q | +6.8%+$5.7K |
| CITADEL ADVISORS LLC | $88.0K | 30,912 | 0.00% | 8q | -71.0%-$215.4K |
| WELLS FARGO & COMPANY/MN | $69.0K | 62,982 | 0.00% | 2q | -4.1%-$3.0K |
| SIMPLEX TRADING, LLC | $47.0K | 11,991 | 0.00% | 4q | -62.8%-$79.4K |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM | $45.0K | 41,200 | 0.00% | 8q | HELD |
| Tower Research Capital LLC (TRC) | $37.0K | 33,391 | 0.00% | 2q | +201.0%+$24.7K |
| ROYAL BANK OF CANADA | $34.0K | 30,700 | 0.00% | 8q | -46.3%-$29.4K |
| 9258 Wealth Management, LLC | $23.0K | 23,365 | 0.01% | 4q | HELD |
| COMMONWEALTH EQUITY SERVICES, LLC | $21.0K | 19,847 | 0.00% | 2q | +1.0% |
| DIMENSIONAL FUND ADVISORS LP | $20.0K | 18,000 | 0.00% | 4q | HELD |
| BLAIR WILLIAM & CO/IL | $18.0K | 16,555 | 0.00% | 3q | -44.9%-$14.7K |
| LPL Financial LLC | $15.0K | 13,650 | 0.00% | new | NEW |
| STATE STREET CORP | $12.0K | 11,200 | 0.00% | 8q | HELD |
| Lehman & Derafelo Financial Resources LLC | $12.0K | 10,800 | 0.00% | 3q | -1.8% |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | $7.0K | 6,500 | 0.00% | 2q | +30.0%+$1.6K |
| UBS Group AG | $6.0K | 5,874 | 0.00% | 4q | -60.7%-$9.3K |
| BANK OF AMERICA CORP /DE/ | $5.0K | 4,794 | 0.00% | new | NEW |
| FLAGSHIP HARBOR ADVISORS, LLC | $5.0K | 5,000 | 0.00% | 2q | HELD |
| MORGAN STANLEY | $4.0K | 4,000 | 0.00% | 4q | HELD |
| Cutler Group LP | $4.0K | 3,900 | 0.00% | 8q | HELD |
| American Portfolios Advisors | $165 | 150 | 0.00% | 11q | HELD |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2020 | 40 | $12.7M | 11,289,722 | 5 | 8 | 13 | 2.3% |
| Q2 2020 | 47 | $12.5M | 8,679,431 | 9 | 10 | 14 | 4.5% |
| Q1 2020 | 42 | $13.4M | 11,024,162 | 7 | 11 | 9 | 5.9% |
| Q4 2019 | 50 | $30.3M | 11,739,490 | 19 | 15 | 8 | 11.8% |
| Q3 2019 | 47 | $18.0M | 21,210,073 | 4 | 5 | 22 | 0.6% |
| Q2 2019 | 58 | $25.5M | 25,127,456 | 7 | 13 | 25 | 3.9% |
| Q1 2019 | 85 | $43.1M | 30,730,300 | 25 | 23 | 22 | 10.1% |
| Q4 2018 | 91 | $134.7M | 40,416,766 | 6 | 2 | 0 | 3.0% |