SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 101 filers reported holding SPERO THERAPEUTICS INC in Q1 2022. The put-call ratio across all filers is - and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2022 | $1,454,000 | -77.0% | 727 | 0.0% | 0.00% | -100.0% |
| Q1 2022 | $6,325,000 | -45.7% | 727 | 0.0% | 0.00% | -50.0% |
| Q4 2021 | $11,639,000 | -13.0% | 727 | 0.0% | 0.00% | 0.0% |
| Q3 2021 | $13,384,000 | +31.9% | 727 | 0.0% | 0.00% | 0.0% |
| Q2 2021 | $10,148,000 | +53310.5% | 727 | +72600.0% | 0.00% | – |
| Q4 2020 | $19,000 | – | 1 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Atlas Venture Associates IX, LLC | 1,376,968 | $2,754,000 | 8.16% |
| Aquilo Capital Management, LLC | 3,403,210 | $6,806,000 | 2.45% |
| OUP Management Co., LLC | 249,070 | $498,000 | 0.78% |
| AWM Investment Company, Inc. | 2,300,400 | $4,601,000 | 0.70% |
| Murchinson Ltd. | 762,700 | $1,525,000 | 0.44% |
| Anson Funds Management LP | 1,473,872 | $2,948,000 | 0.35% |
| Atlas Venture Life Science Advisors, LLC | 1,031,160 | $2,062,000 | 0.23% |
| BVF INC/IL | 1,929,376 | $3,859,000 | 0.16% |
| Oasis Management Co Ltd. | 288,000 | $576,000 | 0.10% |
| Alphabet Inc. | 889,979 | $1,780,000 | 0.09% |