SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 37 filers reported holding SPERO THERAPEUTICS INC in Q4 2017. The put-call ratio across all filers is - and the average weighting 0.6%.
Quarter-by-quarter ownership
Value | Shares | Weighting | ||||
---|---|---|---|---|---|---|
Q4 2017 | $118,000 | – | 10,039 | – | 0.05% | – |
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Other shareholders
Name | Shares | Value | Weighting ↓ |
---|---|---|---|
Aquilo Capital Management, LLC | 3,829,209 | $53,456,000 | 13.89% |
Atlas Venture Associates IX, LLC | 1,376,968 | $19,223,000 | 3.38% |
BVF INC/IL | 2,137,978 | $29,846,000 | 1.12% |
AWM Investment Company, Inc. | 372,755 | $5,204,000 | 0.51% |
Novo Holdings A/S | 468,902 | $6,546,000 | 0.29% |
Rock Springs Capital Management LP | 965,928 | $13,484,000 | 0.27% |
Alphabet Inc. | 889,979 | $12,424,000 | 0.25% |
Artal Group S.A. | 500,000 | $6,980,000 | 0.14% |
Granahan Investment Management | 332,639 | $4,644,000 | 0.09% |
Radnor Capital Management, LLC | 10,000 | $140,000 | 0.05% |