PARATEK PHARMACEUTICALS INC's ticker is PRTK and the CUSIP is 699374302. A total of 104 filers reported holding PARATEK PHARMACEUTICALS INC in Q4 2021. The put-call ratio across all filers is 0.99 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $124,000 | +49.4% | 27,944 | +66.3% | 0.00% | – |
| Q3 2021 | $83,000 | -73.8% | 16,800 | -63.9% | 0.00% | – |
| Q2 2021 | $317,000 | +7.5% | 46,491 | +7.8% | 0.00% | – |
| Q1 2021 | $295,000 | -15.5% | 43,115 | -23.5% | 0.00% | – |
| Q4 2020 | $349,000 | +200.9% | 56,340 | +165.8% | 0.00% | – |
| Q3 2020 | $116,000 | +31.8% | 21,200 | -1.9% | 0.00% | – |
| Q4 2019 | $88,000 | +41.9% | 21,600 | +61.1% | 0.00% | – |
| Q3 2019 | $62,000 | -63.3% | 13,407 | -57.3% | 0.00% | – |
| Q1 2019 | $169,000 | -27.2% | 31,400 | -29.9% | 0.00% | – |
| Q4 2018 | $232,000 | -45.7% | 44,800 | +1.7% | 0.00% | -100.0% |
| Q3 2018 | $427,000 | -40.8% | 44,044 | -20.5% | 0.00% | -50.0% |
| Q2 2018 | $721,000 | 0.0% | 55,370 | 0.0% | 0.00% | 0.0% |
| Q1 2018 | $721,000 | +65.7% | 55,370 | +127.9% | 0.00% | 0.0% |
| Q4 2017 | $435,000 | -63.2% | 24,300 | -48.4% | 0.00% | -60.0% |
| Q3 2017 | $1,181,000 | +22.5% | 47,085 | +24.3% | 0.01% | 0.0% |
| Q2 2017 | $964,000 | – | 37,872 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| AIGH Capital Management LLC | 1,609,398 | $7,821,000 | 1.64% |
| Telemetry Investments, L.L.C. | 242,514 | $1,179,000 | 1.59% |
| Omega Fund Management, LLC | 2,606,809 | $12,669,000 | 1.42% |
| Bruce & Co., Inc. | 1,343,312 | $6,528,000 | 1.39% |
| 1492 Capital Management LLC | 488,309 | $2,373,000 | 1.20% |
| Abingworth LLP | 1,041,131 | $5,060,000 | 1.15% |
| Trellus Management Company, LLC | 295,000 | $1,434,000 | 1.04% |
| Worth Venture Partners, LLC | 389,440 | $1,893,000 | 0.85% |
| CM Management, LLC | 200,000 | $972,000 | 0.72% |
| GENERAL AMERICAN INVESTORS CO INC | 1,112,658 | $5,408,000 | 0.46% |