SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 92 filers reported holding SPERO THERAPEUTICS INC in Q4 2020. The put-call ratio across all filers is 1.32 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2020 | $113,000 | -17.5% | 10,090 | 0.0% | 0.01% | -42.1% |
| Q2 2020 | $137,000 | -16.0% | 10,090 | -50.0% | 0.02% | -17.4% |
| Q1 2020 | $163,000 | -3.0% | 20,175 | +15.2% | 0.02% | +15.0% |
| Q4 2019 | $168,000 | -14.3% | 17,515 | -5.4% | 0.02% | -25.9% |
| Q3 2019 | $196,000 | -8.8% | 18,515 | -1.1% | 0.03% | -12.9% |
| Q2 2019 | $215,000 | -10.4% | 18,715 | 0.0% | 0.03% | -22.5% |
| Q1 2019 | $240,000 | +108.7% | 18,715 | 0.0% | 0.04% | +81.8% |
| Q4 2018 | $115,000 | – | 18,715 | – | 0.02% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Atlas Venture Associates IX, LLC | 1,353,303 | $1,637,497 | 13.93% |
| Anson Funds Management LP | 4,159,572 | $5,033,082 | 1.01% |
| OUP Management Co., LLC | 249,070 | $301,375 | 0.68% |
| Atlas Venture Life Science Advisors, LLC | 1,013,438 | $1,226,260 | 0.19% |
| Murchinson Ltd. | 862,700 | $1,043,867 | 0.13% |
| Alphabet Inc. | 889,979 | $1,076,874 | 0.07% |
| AWM Investment Company, Inc. | 333,400 | $403,414 | 0.06% |
| DAFNA Capital Management LLC | 125,000 | $151,250 | 0.05% |
| Novo Holdings A/S | 468,902 | $567,371 | 0.04% |
| XTX Topco Ltd | 58,368 | $70,625 | 0.01% |