WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. (HIO) IPO - S-1 Filing, Stock & Insider Activity
WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. IPO - Status & S-1 Filing
- Ticker: HIO
- Status: Effective - cleared to price
- Effective: 2026-03-24
- Expected price range: not yet disclosed (set in a later S-1/A or pricing amendment)
- SEC CIK: 0000910068 · View the S-1 on SEC EDGAR →
WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. is pre-IPO, so no insider Form 4 transactions have been filed yet. Once insiders begin reporting trades after the offering, they will appear on this page automatically.
Track every registration update on the InsiderAlpha IPO tracker.
Last SEC filing
WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. (HIO) - no SEC Form 4 insider filings recorded in the last 90 days. InsiderAlpha tracks every HIO SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. (HIO)
WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. trades under the ticker HIO. InsiderAlpha tracks 3 primary SEC Form 4 filings from 3 reporting insiders for HIO since 2025, sourced directly from SEC EDGAR.
| SEC CIK | 0000910068 |
|---|
Recent HIO Insider Transactions (Form 4)
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Carol L. Colman | Director | S - Open-market sale | 4.5K | $3.66 | $16K | SEC | |
| Peter Daniel Charles Mason | Director | P - Open-market purchase | 10.0K | $4.02 | $40K | SEC | |
| Anthony Grillo | Director | P - Open-market purchase | 3.0K | $3.84 | $12K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. (HIO). Updated in real time as new filings are submitted to the SEC.
Recent Insider Filings
- - Carol L. Colman (Director)
- - Peter Daniel Charles Mason (Director)
- - Anthony Grillo (Director)
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in HIO insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
HIO Insider Trading - FAQ
- What is the latest insider trade for HIO?
- WESTERN ASSET HIGH INCOME OPPORTUNITY FUND INC. (HIO) had 0 insider filings in the last 90 days, with the most recent on 2026-04-14. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying HIO stock?
- 0 insider purchases of HIO were filed in the last 90 days.
- How many insiders are selling HIO stock?
- 0 insider sales of HIO were filed in the last 90 days.
- Where can I see HIO SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks HIO Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live HIO dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.