Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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- Peter Lynch
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| Reported DateTime |
Transaction Date |
Type | Company Symbol |
Filed By Symbol |
Shares Owned % Owned |
Shares Vs. Prev Report | View |
| 2021-02-02 3:13 pm Purchase |
2020-12-31 | 13G | Spero Therapeutics, Inc. SPRO |
BLACKROCK INC BLK |
1,731,600 6.400% |
1,731,600 (New Position) |
Filing History |
| 2021-02-02 1:02 pm Unchanged |
2020-12-31 | 13G | Spero Therapeutics, Inc. SPRO |
Atlas Venture Fund IX L.P. | 1,376,968 5.060% |
0 (Unchanged) |
Filing History |
| 2020-12-07 5:08 pm Sale |
2020-11-05 | 13D | Spero Therapeutics, Inc. SPRO |
GLAXOSMITHKLINE PLC | 1,740,606 6.400% |
-78,872 (-4.33%) |
Filing History |
| 2020-09-22 6:51 pm Purchase |
2020-09-11 | 13G | Spero Therapeutics, Inc. SPRO |
Aquilo Capital Management LLC | 4,497,142 17.400% |
3,342,786 (+289.58%) |
Filing History |
| 2020-06-04 5:03 pm Sale |
2020-06-01 | 13D | Spero Therapeutics, Inc. SPRO |
GLAXOSMITHKLINE PLC | 1,819,478 8.800% |
-114,528 (-5.92%) |
Filing History |