SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 57 filers reported holding SPERO THERAPEUTICS INC in Q2 2023. The put-call ratio across all filers is 6.00 and the average weighting 0.2%.
Quarter-by-quarter ownership
Value | Shares | Weighting | ||||
---|---|---|---|---|---|---|
Q2 2024 | $128,073 | -49.6% | 98,518 | -33.4% | 0.00% | – |
Q1 2024 | $254,340 | +16.2% | 147,872 | -0.7% | 0.00% | – |
Q4 2023 | $218,820 | +51.1% | 148,857 | +24.4% | 0.00% | – |
Q3 2023 | $144,830 | -73.3% | 119,694 | -68.0% | 0.00% | – |
Q2 2023 | $542,082 | +75504.2% | 373,850 | -24.4% | 0.00% | – |
Q1 2023 | $717 | -52.7% | 494,541 | -43.6% | 0.00% | -100.0% |
Q4 2022 | $1,516 | -99.9% | 876,398 | +27.3% | 0.00% | 0.0% |
Q3 2022 | $1,377,000 | +491.0% | 688,396 | +118.8% | 0.00% | – |
Q2 2022 | $233,000 | -56.3% | 314,643 | +413.6% | 0.00% | – |
Q1 2022 | $533,000 | +186.6% | 61,261 | +384.9% | 0.00% | – |
Q1 2021 | $186,000 | -83.5% | 12,635 | -78.2% | 0.00% | -100.0% |
Q4 2020 | $1,126,000 | -22.7% | 58,062 | -55.5% | 0.00% | -50.0% |
Q3 2020 | $1,457,000 | +199.2% | 130,574 | +262.8% | 0.00% | +100.0% |
Q2 2020 | $487,000 | +327.2% | 35,993 | +156.1% | 0.00% | – |
Q1 2020 | $114,000 | -6.6% | 14,055 | +10.8% | 0.00% | – |
Q4 2019 | $122,000 | -25.2% | 12,682 | +11.1% | 0.00% | – |
Q1 2018 | $163,000 | – | 11,415 | – | 0.00% | – |
Download |
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% |