| 2024-07-15 | Morgan Stanley | “Equal Weight” → “Underweight” downgrade |
| 2024-05-10 | TD Cowen | “Buy” → “Hold” downgrade |
| 2023-01-06 | Morgan Stanley | “Overweight” → “Equal Weight” downgrade |
| 2023-01-05 | Raymond James | “Outperform” → “Market Perform” downgrade |
| 2023-01-03 | Bank of America | “Buy” → “Neutral” downgrade |
| 2022-12-19 | J.P. Morgan | “Overweight” → “Neutral” downgrade |
| 2022-12-15 | Deutsche Bank | “Buy” → “Hold” downgrade |
| 2022-12-12 | Citigroup | “Buy” → “Neutral” downgrade |
| 2022-06-24 | Wells Fargo | “Overweight” → “Equal Weight” downgrade |
| 2022-04-04 | Goldman Sachs | “Neutral” → “Sell” downgrade |
| 2022-01-07 | Morgan Stanley | “Equal Weight” → “Overweight” upgrade |
| 2021-09-13 | TD Cowen | “Market Perform” → “Outperform” upgrade |
| 2021-09-03 | Barclays | “Equal Weight” → “Overweight” upgrade |
| 2021-01-29 | Piper Sandler | “Overweight” → “Neutral” downgrade |
| 2020-10-01 | Citigroup | “Neutral” → “Buy” upgrade |
| 2020-09-04 | Argus Research | “Buy” → “Hold” downgrade |
| 2020-03-19 | Stifel | “Hold” → “Buy” upgrade |
| 2020-03-18 | KeyBanc | “Sector Weight” → “Overweight” upgrade |
| 2020-01-02 | Evercore ISI | “In Line” → “Outperform” upgrade |
| 2019-12-17 | Morgan Stanley | “Overweight” → “Equal Weight” downgrade |
| 2019-06-26 | KeyBanc | “Sector Weight” → “Equal Weight” revised |
| 2019-04-08 | Evercore ISI | “Outperform” → “In Line” downgrade |
| 2019-02-01 | Barclays | “Underweight” → “Equal Weight” upgrade |
| 2019-01-02 | Morgan Stanley | “Equal Weight” → “Overweight” upgrade |
| 2019-01-02 | Citigroup | “Neutral” → “Buy” upgrade |
| 2018-11-02 | Argus Research | “Hold” → “Buy” upgrade |
| 2018-01-03 | Raymond James | “Market Perform” → “Outperform” upgrade |
| 2018-01-02 | Bank of America | “Neutral” → “Buy” upgrade |
| 2018-01-02 | J.P. Morgan | “Neutral” → “Overweight” upgrade |
| 2017-07-11 | BMO Capital | “Market Perform” → “Outperform” upgrade |
| 2016-04-14 | Piper Sandler | “Neutral” → “Overweight” upgrade |
| 2015-07-30 | Leerink Partners | “Outperform” → “Market Perform” downgrade |
| 2015-07-07 | BMO Capital | “Outperform” → “Market Perform” downgrade |
| 2015-07-02 | Bank of America | “Buy” → “Neutral” downgrade |
| 2015-06-30 | Credit Suisse | “Outperform” → “Neutral” downgrade |
| 2014-01-07 | RBC Capital | “Outperform” → “Sector Perform” downgrade |
| 2013-11-18 | Credit Suisse | “Neutral” → “Outperform” upgrade |
| 2013-10-23 | TD Cowen | “Outperform” → “Market Perform” downgrade |
| 2013-10-18 | Raymond James | “Outperform” → “Market Perform” downgrade |
| 2013-10-18 | Morgan Stanley | “Overweight” → “Equal Weight” downgrade |
| 2013-10-02 | Credit Suisse | “Outperform” → “Neutral” downgrade |
| 2013-09-04 | C.L. King | “Neutral” → “Buy” upgrade |
| 2013-05-07 | Barclays | “Equal Weight” → “Overweight” upgrade |
| 2012-11-27 | Mizuho | “Buy” → “Neutral” downgrade |
| 2012-09-24 | Deutsche Bank | “Buy” → “Hold” downgrade |
| 2012-02-24 | Citigroup | “Sell” → “Neutral” upgrade |
| 2012-02-16 | Standpoint Research | “Buy” → “Hold” downgrade |