SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 47 filers reported holding SPERO THERAPEUTICS INC in Q1 2023. The put-call ratio across all filers is - and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $3 | -80.0% | 2,281 | -75.2% | 0.00% | – |
| Q4 2022 | $15 | -99.2% | 9,206 | +820.6% | 0.00% | – |
| Q3 2022 | $2,000 | -66.7% | 1,000 | -89.2% | 0.00% | – |
| Q2 2022 | $6,000 | -89.1% | 9,300 | +46.5% | 0.00% | – |
| Q1 2022 | $55,000 | +685.7% | 6,346 | +1151.7% | 0.00% | – |
| Q2 2021 | $7,000 | -36.4% | 507 | -16.3% | 0.00% | – |
| Q4 2020 | $11,000 | +450.0% | 606 | +203.0% | 0.00% | – |
| Q2 2020 | $2,000 | – | 200 | – | 0.00% | – |
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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% |