Quick Takeaways
- Mario J. Gabelli has 19 issuer positions tracked on this page.
- Estimated disclosed ownership value: $435,843,230.
- Recent insider filing activity is available below.
Insider Trading & Ownership of Mario J. Gabelli
- Location
- Greenwich, CT
- Summary
- The estimated net worth of Mario J. Gabelli is at least $435,843,230 dollars as of 29 Apr 2026. Mario J. Gabelli is the Director, Control Person of Adviser of GABELLI DIVIDEND & INCOME TRUST and owns shares of GABELLI DIVIDEND & INCOME TRUST (GDV) stock worth about $164.09M. Mario J. Gabelli is the Director, Control Person of Adviser of Gabelli Healthcare & WellnessRx Trust and owns shares of Gabelli Healthcare & WellnessRx Trust (GRX) stock worth about $47.52M. Mario J. Gabelli is the Director, Control Person of Adviser, 10%+ Owner of Gabelli Global Small & Mid Cap Value Trust and owns shares of Gabelli Global Small & Mid Cap Value Trust (GGZ) stock worth about $44.28M. Mario J. Gabelli is the Chairman & CEO, Director, 10%+ Owner of GAMCO INVESTORS, INC. ET AL and owns shares of GAMCO INVESTORS, INC. ET AL stock worth about $42.99M. Mario J. Gabelli is the Director, Control Person of Adviser, 10%+ Owner of GDL FUND and owns shares of GDL FUND (GDL) stock worth about $42.26M. Mario J. Gabelli is the Director, Control Person of Adviser of GABELLI EQUITY TRUST INC and owns shares of GABELLI EQUITY TRUST INC (GAB) stock worth about $21.48M. Mario J. Gabelli is the 10%+ Owner of M-tron Industries, Inc. and owns shares of M-tron Industries, Inc. (MPTI) stock worth about $16.91M. Mario J. Gabelli is the Director, Control Person of Adviser of GABELLI MULTIMEDIA TRUST INC. and owns shares of GABELLI MULTIMEDIA TRUST INC. (GGT) stock worth about $11.07M. Mario J. Gabelli is the Control Person of Adviser of GABELLI CONVERTIBLE & INCOME SECURITIES FUND INC and owns shares of GABELLI CONVERTIBLE & INCOME SECURITIES FUND INC (GCV) stock worth about $8.16M. Mario J. Gabelli is the 10%+ Owner of Atlanta Braves Holdings, Inc. and owns shares of Atlanta Braves Holdings, Inc. (BATRA) stock worth about $6.89M. Mario J. Gabelli is the 10%+ Owner of LGL GROUP INC and owns shares of LGL GROUP INC (LGL) stock worth about $6.49M. Mario J. Gabelli is the Director, Control Person of Adviser of GABELLI UTILITY TRUST and owns shares of GABELLI UTILITY TRUST (GUT) stock worth about $6.42M. Mario J. Gabelli is the Control Person of Adviser, 10%+ Owner of GAMCO Natural Resources, Gold & Income Trust and owns shares of GAMCO Natural Resources, Gold & Income Trust (GNT) stock worth about $4.4M. Mario J. Gabelli is the 10%+ Owner of MachTen, Inc. and owns shares of MachTen, Inc. (MACT) stock worth about $4.16M. Mario J. Gabelli is the Control Person of Adviser of GABELLI GLOBAL UTILITY & INCOME TRUST and owns shares of GABELLI GLOBAL UTILITY & INCOME TRUST (GLU) stock worth about $3.8M. Mario J. Gabelli is the Director, Control Person of Adviser of BANCROFT FUND LTD and owns shares of BANCROFT FUND LTD (BCV) stock worth about $3.47M. Mario J. Gabelli is the Director, Control Person of Adviser of ELLSWORTH GROWTH & INCOME FUND LTD and owns shares of ELLSWORTH GROWTH & INCOME FUND LTD (ECF) stock worth about $1.45M.
- Signature
- Douglas R. Jamieson as Attorney-in-Fact for Mario J. Gabelli
- All Insider Reports
- All Insider Reports
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What Changed
- Largest disclosed position: GABELLI DIVIDEND & INCOME TRUST ($164,092,765).
- Past-year value change for that position: +$58,606,313.
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Mario J. Gabelli
Insider Transactions Reported by Mario J. Gabelli:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.