| 2022-10-10 | Bank of America | “Neutral” → “Buy” upgrade |
| 2022-07-10 | Evercore ISI | “Outperform” → “In Line” downgrade |
| 2022-06-06 | Deutsche Bank | “Hold” → “Buy” upgrade |
| 2022-05-25 | Barclays | “Equal Weight” → “Overweight” upgrade |
| 2022-04-11 | Morgan Stanley | “Overweight” → “Equal Weight” downgrade |
| 2022-03-10 | CFRA | “Strong Buy” → “Hold” downgrade |
| 2022-02-01 | CFRA | “Strong Buy” → “Buy” downgrade |
| 2021-12-14 | Citigroup | “Buy” → “Neutral” downgrade |
| 2021-11-16 | Barclays | “Underweight” → “Equal Weight” upgrade |
| 2021-11-16 | Raymond James | “Outperform” → “Market Perform” downgrade |
| 2021-11-16 | Credit Suisse | “Outperform” → “Neutral” downgrade |
| 2021-02-03 | Evercore ISI | “In Line” → “Outperform” upgrade |
| 2021-02-02 | TD Cowen | “Market Perform” → “Outperform” upgrade |
| 2021-01-06 | Credit Suisse | “Neutral” → “Outperform” upgrade |
| 2021-01-05 | Bank of America | “Underperform” → “Neutral” upgrade |
| 2020-12-10 | Wells Fargo | “Equal Weight” → “Underweight” downgrade |
| 2020-08-06 | Raymond James | “Market Perform” → “Outperform” upgrade |
| 2020-06-16 | CFRA | “Buy” → “Strong Buy” upgrade |
| 2020-06-14 | Morgan Stanley | “Equal Weight” → “Overweight” upgrade |
| 2020-04-13 | Baird | “Outperform” → “Neutral” downgrade |
| 2020-03-31 | J.P. Morgan | “Neutral” → “Overweight” upgrade |
| 2020-03-17 | Citigroup | “Neutral” → “Buy” upgrade |
| 2020-02-11 | Bank of America | “Neutral” → “Underperform” downgrade |
| 2020-02-06 | Baird | “Neutral” → “Outperform” upgrade |
| 2019-07-10 | KeyBanc | “Overweight” → “Sector Weight” downgrade |
| 2019-04-10 | Bank of America | “Buy” → “Underperform” downgrade |
| 2019-04-09 | Evercore ISI | “Outperform” → “In Line” downgrade |
| 2019-02-11 | J.P. Morgan | “Neutral” → “Underweight” downgrade |
| 2018-12-10 | Jefferies | “Buy” → “Hold” downgrade |
| 2018-11-30 | RBC Capital | “Sector Perform” → “Perform” revised |
| 2018-10-26 | RBC Capital | “Outperform” → “Perform” downgrade |
| 2018-09-24 | TD Cowen | “Outperform” → “Market Perform” downgrade |
| 2018-07-19 | Baird | “Outperform” → “Neutral” downgrade |
| 2018-07-18 | BMO Capital | “Market Perform” → “Perform” revised |
| 2018-03-12 | KeyBanc | “Sector Weight” → “Overweight” upgrade |
| 2018-03-12 | Raymond James | “Market Perform” → “Outperform” upgrade |
| 2017-12-19 | Goldman Sachs | “Neutral” → “Buy” upgrade |
| 2017-10-09 | TD Cowen | “Market Perform” → “Outperform” upgrade |
| 2017-10-04 | Baird | “Neutral” → “Outperform” upgrade |
| 2017-09-19 | RBC Capital | “Sector Perform” → “Perform” revised |
| 2017-09-13 | Morgan Stanley | “Overweight” → “Equal Weight” downgrade |
| 2017-06-30 | Bank of America | “Buy” → “Neutral” downgrade |
| 2017-05-17 | Wells Fargo | “Market Perform” → “Perform” revised |
| 2017-05-02 | KeyBanc | “Overweight” → “Sector Weight” downgrade |
| 2017-01-16 | Leerink Partners | “Market Perform” → “Outperform” upgrade |
| 2017-01-12 | Bank of America | “Neutral” → “Buy” upgrade |
| 2017-01-02 | Mizuho | “Buy” → “Neutral” downgrade |
| 2016-12-16 | KeyBanc | “Sector Weight” → “Overweight” upgrade |
| 2016-12-08 | Citigroup | “Neutral” → “Buy” upgrade |
| 2016-11-09 | Morgan Stanley | “Equal Weight” → “Overweight” upgrade |
| 2016-11-08 | Mizuho | “Neutral” → “Buy” upgrade |
| 2016-11-04 | Leerink Partners | “Outperform” → “Perform” downgrade |
| 2016-10-11 | TD Cowen | “Market Perform” → “Outperform” upgrade |
| 2016-10-07 | Raymond James | “Market Perform” → “Perform” revised |
| 2016-10-04 | Avondale Partners | “Market Perform” → “Outperform” upgrade |
| 2016-10-03 | Avondale Partners | “Market Perform” → “Market Outperform” upgrade |
| 2016-10-03 | Stifel | “Sell” → “Hold” upgrade |