| SC 13D | 2019-03-14 | Saba Capital Management, L.P. | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 13,901,695 | 10.8% | EDGAR |
| SC 13G/A | 2019-02-14 | RIVERNORTH CAPITAL MANAGEMENT, LLC | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 9,857,102 | 7.6% | EDGAR |
| SC 13G/A | 2019-01-22 | FIRST TRUST PORTFOLIOS LP | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 7,619,617 | 5.9% | EDGAR |
| SC 13G/A | 2019-01-10 | Saba Capital Management, L.P. | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 13,089,380 | 10.1% | EDGAR |
| SC 13G | 2018-03-05 | Saba Capital Management, L.P. | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 7,403,091 | 5.7% | EDGAR |
| SC 13G | 2018-02-14 | RIVERNORTH CAPITAL MANAGEMENT, LLC | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 8,872,673 | 6.9% | EDGAR |
| SC 13G/A | 2018-02-12 | MORGAN STANLEY | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 5,797,520 | 4.4% | EDGAR |
| SC 13G/A | 2018-01-29 | FIRST TRUST PORTFOLIOS LP | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 6,487,384 | 5.0% | EDGAR |
| SC 13G/A | 2017-02-13 | MORGAN STANLEY | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 6,590,521 | 5.0% | EDGAR |
| SC 13G | 2017-01-25 | FIRST TRUST PORTFOLIOS LP | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 7,433,064 | 5.8% | EDGAR |
| SC 13G/A | 2016-02-11 | MORGAN STANLEY | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 5,292,236 | 6.3% | EDGAR |
| SC 13G/A | 2016-02-09 | FIRST TRUST PORTFOLIOS LP | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 3,280,359 | 3.9% | EDGAR |
| SC 13G | 2015-02-17 | MORGAN STANLEY | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 5,937,708 | 7.1% | EDGAR |
| SC 13G/A | 2015-01-21 | FIRST TRUST PORTFOLIOS LP | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 5,401,568 | 6.4% | EDGAR |
| SC 13G/A | 2014-10-10 | FIRST TRUST PORTFOLIOS LP | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 6,711,141 | 8.0% | EDGAR |
| SC 13G/A | 2014-01-22 | FIRST TRUST PORTFOLIOS LP | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 11,596,440 | 13.9% | EDGAR |
| SC 13G/A | 2013-05-15 | LOOMIS SAYLES & CO L P | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | - | - | EDGAR |
| SC 13G/A | 2013-02-14 | LOOMIS SAYLES & CO L P | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 26,562,637 | 9.3% | EDGAR |
| SC 13G/A | 2013-01-09 | FIRST TRUST PORTFOLIOS LP | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 14,627,588 | 19.3% | EDGAR |
| SC 13G/A | 2012-02-14 | LOOMIS SAYLES & CO L P | WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. | 2,119,370 | 2.8% | EDGAR |