4 insiders reported 4 Form 4 transactions for WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. (HIO) over the past 18 months (most recent 2026-04-14). Recent activity: COLMAN CAROL L (Director) Sell 4,500 shares, Mason Peter Daniel Charles (Director) Buy 10,000 shares, Sale Hillary A (Director) Buy 5,167 shares, GRILLO ANTHONY (Director) Buy 3,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-14 | COLMAN CAROL L | Director | Sell | 4,500 | $16,470 |
| 2025-07-15 | Mason Peter Daniel Charles | Director | Buy | 10,000 | $40,200 |
| 2025-06-02 | Sale Hillary A | Director | Buy | 5,167 | $20,048 |
| 2025-05-28 | GRILLO ANTHONY | Director | Buy | 3,000 | $11,520 |
Source: SEC Form 4 filings · as of 2026-04-14