SPERO THERAPEUTICS INC (SPRO) 1.83 +0.01 (+0.55%)
1.83 +0.01 (+0.55%)
US84833T1034 - Common Stock
| Shares Outstanding | 51.78M |
| Float | 38.05M |
| Owners (insider) | 1.77% |
| Owners (institutional) | 38.39% |
| Owners (insider) change | 33.66% |
| Owners (institutional) change | -0.04% |
Insider Transactions
Top Institutional Holders
Insider Owners
| Date | Name | Type | Shares | Price | Amount |
|---|---|---|---|---|---|
| Sep 22, 2022 | Aquilo Capital Management, LLC | Open Market Sale | 1901796 | 2.25 | $ 4,279,611.54 |
| Sep 22, 2022 | Aquilo Capital, L.P. | Open Market Sale | 1901796 | 2.25 | $ 4,279,611.54 |
| Sep 15, 2022 | Smith Cynthia | Grant | 15000 | 0.00 | $ 0.00 |
| Sep 15, 2022 | THOMAS FRANK E | Grant | 15000 | 0.00 | $ 0.00 |
| Sep 15, 2022 | Jackson Scott Thomas | Grant | 15000 | 0.00 | $ 0.00 |
| Sep 15, 2022 | Deshpande Milind | Grant | 15000 | 0.00 | $ 0.00 |
| Sep 15, 2022 | Pottage John C Jr | Grant | 15000 | 0.00 | $ 0.00 |
| Sep 15, 2022 | Tregoning Kathleen | Grant | 15000 | 0.00 | $ 0.00 |
| Sep 15, 2022 | VINK PATRICK V.J.J. | Grant | 15000 | 0.00 | $ 0.00 |
| Sep 12, 2022 | HAMED KAMAL | Grant | 210000 | 0.00 | $ 0.00 |
| Aug 29, 2022 | Shukla Sath | Open Market Sale | 6017 | 0.89 | $ 5,377.99 |
| Apr 26, 2022 | Aquilo Capital Management, LLC | Open Market Purchase | 39727 | 5.24 | $ 207,970.85 |
| Apr 26, 2022 | Aquilo Capital, L.P. | Open Market Purchase | 39727 | 5.24 | $ 207,970.85 |
| Mar 30, 2022 | Aquilo Capital Management, LLC | Open Market Purchase | 50000 | 8.79 | $ 439,420.00 |
| Mar 30, 2022 | Aquilo Capital, L.P. | Open Market Purchase | 50000 | 8.79 | $ 439,420.00 |
| Mar 14, 2022 | Aquilo Capital Management, LLC | Open Market Purchase | 23708 | 7.63 | $ 180,797.21 |
| Mar 14, 2022 | Aquilo Capital, L.P. | Open Market Purchase | 23708 | 7.63 | $ 180,797.21 |
| Feb 28, 2022 | Aquilo Capital Management, LLC | Open Market Purchase | 44833 | 9.53 | $ 427,227.11 |
| Feb 28, 2022 | Aquilo Capital, L.P. | Open Market Purchase | 44833 | 9.53 | $ 427,227.11 |
| Feb 18, 2022 | Aquilo Capital Management, LLC | Open Market Purchase | 14828 | 9.24 | $ 137,038.89 |
| Feb 18, 2022 | Aquilo Capital, L.P. | Open Market Purchase | 14828 | 9.24 | $ 137,038.89 |
| Feb 1, 2022 | Mahadevia Ankit | Grant | 134168 | 0.00 | $ 0.00 |
| Feb 1, 2022 | Keutzer Timothy | Grant | 38014 | 0.00 | $ 0.00 |
| Feb 1, 2022 | JOSEPH TAMARA L | Grant | 38014 | 0.00 | $ 0.00 |
| Feb 1, 2022 | Larkin Cristina | Grant | 38014 | 0.00 | $ 0.00 |
| Feb 1, 2022 | Shukla Sath | Grant | 38014 | 0.00 | $ 0.00 |
| Feb 1, 2022 | Melnick David A. | Grant | 38014 | 0.00 | $ 0.00 |
| Jan 31, 2022 | Aquilo Capital Management, LLC | Open Market Purchase | 125000 | 11.59 | $ 1,448,262.50 |
| Jan 31, 2022 | Aquilo Capital, L.P. | Open Market Purchase | 125000 | 11.59 | $ 1,448,262.50 |