Rating History for Portola Pharmaceuticals (PTLA) by William Blair
| Date | Analyst | Type | Rating (Past) |
PT (Past) |
Start $ (End $) |
% Chg. | Details |
|---|---|---|---|---|---|---|---|
| 5/5/2020 | Matt Phipps | Downgrade | Market Perform (Outperform) |
N/A (N/A) |
7.76 (18.03) |
132.35% | Details |
 |
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