| 2025-07-02 | UBS | “Buy” → “Neutral” downgrade |
| 2025-07-02 | J.P. Morgan | “Overweight” → “Neutral” downgrade |
| 2025-06-02 | Barclays | “Overweight” → “Equal Weight” downgrade |
| 2025-04-08 | Jefferies | “Underperform” → “Hold” upgrade |
| 2024-12-13 | UBS | “Neutral” → “Buy” upgrade |
| 2024-12-10 | Jefferies | “Hold” → “Underperform” downgrade |
| 2024-07-24 | Jefferies | “Buy” → “Hold” downgrade |
| 2024-03-25 | Stephens & Co. | “Overweight” → “Equal Weight” downgrade |
| 2024-01-02 | Wells Fargo | “Equal Weight” → “Overweight” upgrade |
| 2023-09-05 | Bank of America | “Underperform” → “Neutral” upgrade |
| 2023-08-30 | Morgan Stanley | “Overweight” → “Equal Weight” downgrade |
| 2023-07-12 | Wolfe Research | “Outperform” → “Peer Perform” downgrade |
| 2023-03-08 | Deutsche Bank | “Buy” → “Hold” downgrade |
| 2023-02-23 | J.P. Morgan | “Overweight” → “Neutral” downgrade |
| 2022-12-13 | Bank of America | “Neutral” → “Underperform” downgrade |
| 2022-08-26 | Wells Fargo | “Overweight” → “Equal Weight” downgrade |
| 2022-07-14 | Jefferies | “Hold” → “Buy” upgrade |
| 2022-06-21 | Credit Suisse | “Neutral” → “Outperform” upgrade |
| 2022-05-26 | Bank of America | “Buy” → “Neutral” downgrade |
| 2021-05-11 | Stephens & Co. | “Equal Weight” → “Overweight” upgrade |
| 2021-01-15 | Jefferies | “Buy” → “Hold” downgrade |
| 2020-01-06 | Wolfe Research | “Peer Perform” → “Outperform” upgrade |
| 2019-05-10 | Citigroup | “Neutral” → “Buy” upgrade |
| 2018-10-24 | Leerink Partners | “Market Perform” → “Outperform” upgrade |
| 2018-02-07 | Cantor Fitzgerald | “Buy” → “Overweight” revised |
| 2017-05-22 | J.P. Morgan | “Overweight” → “Neutral” downgrade |
| 2016-12-13 | Goldman Sachs | “Sell” → “Neutral” upgrade |
| 2016-11-14 | Bernstein | “Market Perform” → “Outperform” upgrade |
| 2016-11-11 | Credit Suisse | “Outperform” → “Neutral” downgrade |
| 2016-09-06 | Leerink Partners | “Outperform” → “Market Perform” downgrade |
| 2016-06-29 | Morgan Stanley | “Equal Weight” → “Overweight” upgrade |
| 2016-06-20 | Barclays | “Equal Weight” → “Overweight” upgrade |
| 2016-06-16 | Bernstein | “Market Perform” → “Perform” revised |
| 2016-05-26 | Stifel | “Hold” → “Buy” upgrade |
| 2015-07-27 | UBS | “Neutral” → “Buy” upgrade |
| 2015-07-21 | Goldman Sachs | “Neutral” → “Sell” downgrade |
| 2015-07-15 | Jefferies | “Hold” → “Buy” upgrade |
| 2015-07-13 | B. Riley | “Market Perform” → “Outperform” upgrade |
| 2015-07-08 | Wells Fargo | “Market Perform” → “Outperform” upgrade |
| 2015-07-06 | Barclays | “Overweight” → “Equal Weight” downgrade |
| 2015-01-06 | BMO Capital | “Market Perform” → “Outperform” upgrade |
| 2014-11-13 | B. Riley | “Outperform” → “Market Perform” downgrade |
| 2014-07-25 | Wells Fargo | “Market Perform” → “Perform” revised |
| 2014-06-03 | Citigroup | “Neutral” → “Sell” downgrade |
| 2014-02-05 | Citigroup | “Sell” → “Neutral” upgrade |
| 2014-01-23 | Credit Suisse | “Neutral” → “Outperform” upgrade |
| 2013-12-16 | Susquehanna | “Neutral” → “Positive” upgrade |
| 2013-10-23 | Citigroup | “Neutral” → “Sell” downgrade |
| 2013-10-23 | Monness, Crespi, Hardt | “Buy” → “Neutral” downgrade |
| 2013-07-23 | Cantor Fitzgerald | “Hold” → “Buy” upgrade |