Western Asset High Income Opportunity Fund Inc.
HIO- Exchange
- NYSE
- SEC CIK
- 0000910068
No open-market purchases or sales by Western Asset High Income Opportunity Fund Inc. insiders were filed in the last 90 days; 112 institutions reported holding it in 13F filings for Q2 2026, worth $121.0M in total; no superinvestor holds it.
Holders of 5% or more of HIO
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Western Asset High Income Opportunity Fund Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Morgan Stanley | 13G | 6.20%5.85M shares | +0.40 ppfrom 5.80% | Feb 9, 20224 filings | May 11, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
12 Schedule 13D and 13G filings on Western Asset High Income Opportunity Fund Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| May 11, 202612:52 PM ET | Morgan Stanleyand 1 other | 13G | 6.20%5.85M shares | +0.40 ppfrom 5.80% | Mar 31, 2026 | SEC |
| Feb 4, 202512:43 PM ET | Morgan Stanleyand 1 other | 13G | 5.80%5.48M shares | – | Dec 31, 2024 | SEC |
| Feb 14, 2024 | Rivernorth Capital Management, LLC | 13G/AOld format | – | – | – | SEC |
| Jan 10, 20249:36 AM ET | First Trust Portfolios LP | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2023 | Rivernorth Capital Management, LLC | 13GOld format | – | – | – | SEC |
| Jan 11, 20239:40 AM ET | First Trust Portfolios LP | 13G/AOld format | – | – | – | SEC |
| Dec 12, 20224:28 PM ET | Morgan Stanley | 13G/AOld format | – | – | – | SEC |
| Feb 9, 20224:54 PM ET | Morgan Stanley | 13GOld format | – | New | – | SEC |
| Jan 12, 20229:43 AM ET | First Trust Portfolios LP | 13G/AOld format | – | – | – | SEC |
| Feb 16, 2021 | Rivernorth Capital Management, LLC | 13G/AOld format | – | – | – | SEC |
| Feb 12, 2021 | Saba Capital Management, L.P. | 13G/AOld format | – | – | – | SEC |
| Jan 22, 20219:23 AM ET | First Trust Portfolios LP | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Western Asset High Income Opportunity Fund Inc. shares.
No Form 144 notices for Western Asset High Income Opportunity Fund Inc. are on file.