| 2024-03-05 | Argus Research | “Buy” → “Hold” downgrade |
| 2024-02-13 | Societe Generale | “Sell” → “Hold” upgrade |
| 2024-01-23 | UBS | “Buy” → “Sell” downgrade |
| 2023-06-20 | Citigroup | “Neutral” → “Buy” upgrade |
| 2023-03-30 | J.P. Morgan | “Neutral” → “Overweight” upgrade |
| 2023-03-01 | UBS | “Neutral” → “Buy” upgrade |
| 2023-01-25 | Goldman Sachs | “Neutral” → “Buy” upgrade |
| 2023-01-19 | Jefferies | “Hold” → “Buy” upgrade |
| 2022-11-15 | Argus Research | “Hold” → “Buy” upgrade |
| 2022-03-22 | Goldman Sachs | “Buy” → “Neutral” downgrade |
| 2022-03-07 | J.P. Morgan | “Overweight” → “Neutral” downgrade |
| 2021-04-09 | J.P. Morgan | “Neutral” → “Overweight” upgrade |
| 2020-11-23 | UBS | “Buy” → “Neutral” downgrade |
| 2020-10-07 | Citigroup | “Neutral” → “Buy” upgrade |
| 2020-02-13 | TD Cowen | “Market Perform” → “Outperform” upgrade |
| 2019-12-02 | Citigroup | “Buy” → “Neutral” downgrade |
| 2019-10-01 | Bank of America | “Neutral” → “Buy” upgrade |
| 2019-07-19 | Barclays | “Equal Weight” → “Overweight” upgrade |
| 2019-05-23 | Barclays | “Underweight” → “Equal Weight” upgrade |
| 2019-05-17 | Bank of America | “Underperform” → “Neutral” upgrade |
| 2019-02-27 | UBS | “Neutral” → “Buy” upgrade |
| 2018-12-18 | Credit Suisse | “Neutral” → “Underperform” downgrade |
| 2018-08-24 | Jefferies | “Buy” → “Hold” downgrade |
| 2018-07-25 | Argus | “Hold” → “Buy” upgrade |
| 2018-07-20 | J.P. Morgan | “Overweight” → “Neutral” downgrade |
| 2018-07-20 | TD Cowen | “Outperform” → “Market Perform” downgrade |
| 2018-05-05 | Argus | “Buy” → “Hold” downgrade |
| 2018-04-20 | Bank of America | “Neutral” → “Underperform” downgrade |
| 2018-02-28 | Citigroup | “Neutral” → “Buy” upgrade |
| 2018-01-19 | Jefferies | “Hold” → “Buy” upgrade |
| 2017-10-20 | Societe Generale | “Hold” → “Buy” upgrade |
| 2017-08-11 | SBG Securities | “Sell” → “Hold” upgrade |
| 2017-01-04 | Bank of America | “Buy” → “Neutral” downgrade |
| 2016-11-14 | CLSA | “Outperform” → “Buy” revised |
| 2016-09-12 | Goldman Sachs | “Neutral” → “Buy” upgrade |
| 2016-07-20 | SBG Securities | “Sell” → “Hold” upgrade |
| 2016-06-17 | J.P. Morgan | “Neutral” → “Overweight” upgrade |
| 2016-04-21 | Societe Generale | “Sell” → “Hold” upgrade |
| 2016-03-24 | Bank of America | “Neutral” → “Buy” upgrade |
| 2016-03-08 | BNP Paribas Exane | “Neutral” → “Outperform” upgrade |
| 2015-11-30 | Nomura | “Reduce” → “Neutral” upgrade |
| 2015-05-08 | Goldman Sachs | “Sell” → “Neutral” upgrade |
| 2015-05-06 | CLSA | “Underperform” → “Outperform” upgrade |
| 2015-04-17 | TD Cowen | “Market Perform” → “Outperform” upgrade |
| 2015-04-13 | Argus Research | “Buy” → “Hold” downgrade |
| 2015-01-15 | Goldman Sachs | “Neutral” → “Sell” downgrade |
| 2014-12-08 | Nomura | “Neutral” → “Reduce” downgrade |
| 2014-09-26 | Bank of America | “Buy” → “Neutral” downgrade |
| 2014-04-09 | Nomura | “Reduce” → “Neutral” upgrade |
| 2014-02-21 | FirstEnergy Capital | “Outperform” → “Market Perform” downgrade |
| 2013-11-21 | Goldman Sachs | “Buy” → “Neutral” downgrade |
| 2013-10-10 | Nomura | “Neutral” → “Reduce” downgrade |
| 2013-02-13 | Nomura | “Reduce” → “Neutral” upgrade |
| 2013-01-11 | Goldman Sachs | “Neutral” → “Buy” upgrade |
| 2012-04-03 | Credit Suisse | “Outperform” → “Neutral” downgrade |