Mario J. Gabelli - Insider Trading & Ownership

Location
191 Mason Street, Greenwich, CT
Summary
The estimated net worth of Mario J. Gabelli is at least $303M dollars as of November 20, 2025. 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 $79.5M. 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 $44.3M. 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 (GAMI) stock worth about $43M. Mario J. Gabelli is the Director, Control Person of Adviser, 10%+ Owner of Gabelli Healthcare & WellnessRx Trust and owns shares of Gabelli Healthcare & WellnessRx Trust (GRX) stock worth about $32.1M. 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 $21.1M. Mario J. Gabelli is the 10%+ Owner of M-tron Industries, Inc. and owns shares of M-tron Industries, Inc. (MPTI) stock worth about $16.9M. Mario J. Gabelli is the Director, Control Person of Adviser, 10%+ Owner of GABELLI EQUITY TRUST INC and owns shares of GABELLI EQUITY TRUST INC (GAB) stock worth about $15.5M. 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 $11.6M. 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 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 $3.5M. 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

Ownership of Mario J. Gabelli

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
GDL GDL FUND Director, Control Person of Adviser, 10%+ Owner $79.5M -$20.1K -0.03% Nov 26, 2024
GGZ Gabelli Global Small & Mid Cap Value Trust Director, Control Person of Adviser, 10%+ Owner $44.3M +$11.7M +35.8% Sep 26, 2025
GAMI GAMCO INVESTORS, INC. ET AL Chairman & CEO, Director, 10%+ Owner $43M May 14, 2021
GRX Gabelli Healthcare & WellnessRx Trust Director, Control Person of Adviser, 10%+ Owner $32.1M +$18.6M +137% Oct 30, 2025
GDV, GDV-PH GABELLI DIVIDEND & INCOME TRUST Director, Control Person of Adviser $21.1M +$190K +0.91% Nov 18, 2025
MPTI, MPTI-WT M-tron Industries, Inc. 10%+ Owner $16.9M Nov 19, 2024
GAB, GAB-PG GABELLI EQUITY TRUST INC Director, Control Person of Adviser, 10%+ Owner $15.5M Jun 26, 2025
GGT, GGT-PE GABELLI MULTIMEDIA TRUST INC. Director, Control Person of Adviser $11.6M +$299K +2.66% Oct 27, 2025
GCV GABELLI CONVERTIBLE & INCOME SECURITIES FUND INC Control Person of Adviser $8.16M +$179K +2.25% Nov 10, 2025
BATRA, BATRK Atlanta Braves Holdings, Inc. 10%+ Owner $6.89M +$86.9K +1.28% May 23, 2025
GUT, GUT-PC GABELLI UTILITY TRUST Director, Control Person of Adviser $6.42M Oct 25, 2024
GNT, GNT-PA GAMCO Natural Resources, Gold & Income Trust Control Person of Adviser, 10%+ Owner $4.4M Jun 26, 2025
MACT MachTen, Inc. 10%+ Owner $4.16M Dec 5, 2023
GLU, GLU-PB GABELLI GLOBAL UTILITY & INCOME TRUST Control Person of Adviser $3.8M Dec 26, 2024
BCV, BCV-PA BANCROFT FUND LTD Director, Control Person of Adviser $3.5M -$50K -1.41% Oct 20, 2025
ECF, ECF-PA ELLSWORTH GROWTH & INCOME FUND LTD Director, Control Person of Adviser $1.45M Jun 26, 2025
AC Associated Capital Group, Inc. Executive Chairman, Director, 10%+ Owner Mar 7, 2023
GGO Gabelli Go Anywhere Trust Director, Control Person of Adviser Sep 30, 2021

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.