SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 86 filers reported holding SPERO THERAPEUTICS INC in Q4 2021. The put-call ratio across all filers is 0.92 and the average weighting 0.3%.
Other shareholders
Name | Shares | Value | Weighting ↓ |
---|---|---|---|
Atlas Venture Associates IX, LLC | 1,376,968 | $14,596,000 | 24.02% |
Aquilo Capital Management, LLC | 1,154,356 | $12,236,000 | 8.62% |
VHCP Management II, LLC | 474,015 | $5,025,000 | 1.92% |
AWM Investment Company, Inc. | 598,315 | $6,342,000 | 1.35% |
BVF INC/IL | 939,704 | $9,961,000 | 1.05% |
Novo Holdings A/S | 465,983 | $4,939,000 | 0.85% |
Alphabet Inc. | 1,112,473 | $11,792,000 | 0.35% |
Artal Group S.A. | 540,000 | $5,724,000 | 0.23% |
Rock Springs Capital Management LP | 525,000 | $5,565,000 | 0.22% |
DAFNA Capital Management LLC | 39,395 | $418,000 | 0.16% |