ZAFGEN INC (ZFGN)
Institutional ownership reported to the SEC as of Q1 2020, across 6 quarters.
40
Reporting holders
$20.2M
Reported value
0.0%
Calls
0.0%
Puts
-5
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 |
|---|---|---|---|---|---|
| Atlas Venture Advisors, Inc. | $2.7M | 3,506,207 | 3.66% | 6q | HELD |
| SPHERA FUNDS MANAGEMENT LTD. | $2.4M | 3,161,562 | 0.30% | 2q | +809.4%+$2.2M |
| 683 Capital Management, LLC | $2.0M | 2,630,368 | 0.24% | 6q | -2.6%-$54.8K |
| Sio Capital Management, LLC | $1.8M | 2,332,164 | 0.60% | 2q | +2.1%+$37.7K |
| RENAISSANCE TECHNOLOGIES LLC | $1.7M | 2,160,550 | 0.00% | 6q | -9.4%-$173.4K |
| MANGROVE PARTNERS | $1.4M | 1,762,826 | 0.19% | 6q | -0.8%-$10.6K |
| MORGAN STANLEY | $1.3M | 1,694,701 | 0.00% | 10q | HELD |
| ACUTA CAPITAL PARTNERS, LLC | $1.1M | 1,386,000 | 0.52% | 2q | +38.6%+$297.2K |
| Soleus Capital Management, L.P. | $1.0M | 1,348,399 | 1.21% | 2q | +67.7%+$419.1K |
| ORBIMED ADVISORS LLC | $852.0K | 1,106,529 | 0.01% | 2q | +34.8%+$219.9K |
| VANGUARD GROUP INC | $764.0K | 992,463 | 0.00% | 6q | HELD |
| BlackRock Inc. | $563.0K | 731,957 | 0.00% | 6q | -1.3%-$7.6K |
| Worth Venture Partners, LLC | $550.0K | 713,621 | 0.34% | 4q | +31.6%+$132.0K |
| ROYCE & ASSOCIATES LP | $259.0K | 336,781 | 0.00% | 6q | HELD |
| MILLENNIUM MANAGEMENT LLC | $237.0K | 307,901 | 0.00% | 6q | -16.2%-$45.8K |
| DAFNA Capital Management LLC | $235.0K | 305,500 | 0.10% | 6q | HELD |
| Russell Investments Group, Ltd. | $201.0K | 261,234 | 0.00% | 3q | -33.9%-$103.2K |
| GEODE CAPITAL MANAGEMENT, LLC | $194.0K | 252,782 | 0.00% | 6q | -51.3%-$204.1K |
| TWO SIGMA INVESTMENTS, LP | $172.0K | 223,368 | 0.00% | 6q | -49.6%-$169.3K |
| TWO SIGMA ADVISERS, LP | $165.0K | 214,300 | 0.00% | 6q | -10.2%-$18.7K |
| Point72 Asset Management, L.P. | $159.0K | 207,129 | 0.00% | 2q | HELD |
| WINTON GROUP Ltd | $140.0K | 182,452 | 0.00% | 3q | -0.8%-$1.2K |
| Hikari Power Ltd | $116.0K | 150,000 | 0.02% | 6q | -25.2%-$39.1K |
| NORTHERN TRUST CORP | $61.0K | 78,651 | 0.00% | 6q | HELD |
| BRIDGEWAY CAPITAL MANAGEMENT INC | $35.0K | 45,000 | 0.00% | new | NEW |
| GOLDMAN SACHS GROUP INC | $29.0K | 37,419 | 0.00% | 6q | -21.0%-$7.7K |
| CITADEL ADVISORS LLC | $20.0K | 25,350 | 0.00% | new | NEW |
| STATE STREET CORP | $19.0K | 24,100 | 0.00% | 6q | -4.0% |
| Northeast Financial Consultants Inc | $18.0K | 23,243 | 0.00% | 4q | HELD |
| GABELLI FUNDS LLC | $17.0K | 22,000 | 0.00% | new | NEW |
| US BANCORP \DE\ | $11.0K | 14,105 | 0.00% | 6q | HELD |
| BANK OF AMERICA CORP /DE/ | $8.0K | 10,996 | 0.00% | 6q | -34.6%-$4.2K |
| VICTORY CAPITAL MANAGEMENT INC | $8.0K | 10,618 | 0.00% | new | NEW |
| Spark Investment Management LLC | $8.0K | 11,381 | 0.00% | new | NEW |
| Squarepoint Ops LLC | $8.0K | 10,384 | 0.00% | 2q | -71.2%-$19.8K |
| SIMPLEX TRADING, LLC | $3.0K | options only | 0.00% | new | OPTIONS |
| Cubist Systematic Strategies, LLC | $3.0K | 3,388 | 0.00% | 2q | -19.5% |
| GROUP ONE TRADING, L.P. | $2.0K | options only | 0.00% | new | OPTIONS |
| ROYAL BANK OF CANADA | $1.0K | 1,707 | 0.00% | 3q | +21.8% |
| FEDERATED HERMES, INC. | $1.0K | 24? | 0.00% | 6q | |
| BNP PARIBAS ARBITRAGE, SA | $67 | 87 | 0.00% | 6q | 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 |
|---|---|---|---|---|---|---|---|
| Q1 2020 | 40 | $20.2M | 26,287,223 | 7 | 7 | 16 | 0.0% |
| Q4 2019 | 45 | $28.0M | 25,226,366 | 11 | 8 | 13 | 0.0% |
| Q3 2019 | 46 | $17.0M | 22,975,264 | 8 | 12 | 14 | 0.0% |
| Q2 2019 | 66 | $31.5M | 26,447,636 | 12 | 19 | 25 | 0.0% |
| Q1 2019 | 85 | $78.6M | 28,640,957 | 13 | 29 | 25 | 0.1% |
| Q4 2018 | 93 | $155.3M | 31,374,044 | 3 | 1 | 1 | 0.0% |