Mario Gabelli's portfolio
Private-market-value approach with catalyst-driven event arbitrage.
What changed in Q2 2026
Compared with the previous 13F. Values are as reported at quarter end. How to read a 13F.
New positions
- Honeywell AerospaceHONA$25M
- Micron TechnologyMU$9M
- OceanaGoldOGC$6M
- Hilton WorldwideHLT$6M
- Mission ProduceAVO$5M
- Fedex Freight HoldingFDXF$3M
- SandiskSNDK$3M
- VersigentVGNT$2M
- Organon &OGN$1M
- Apogee Therapeutics, Inc. Common StockAPGE$1M
Added to
- Madison Square Garden SportsMSGS$237M
- HercHRI$140M
- National Fuel GasNFG$106M
- Alphabet Inc Class CGOOG$72M
- NVIDIANVDA$70M
- Genuine PartsGPC$53M
- ITTITT$49M
- MNROMNRO$47M
- Versant MediaVSNT$41M
- CorningGLW$40M
Trimmed
- CraneCR$218M
- Mueller IndustriesMLI$190M
- GATXGATX$187M
- Watts Water TechnologiesWTS$156M
- Bank of New York MellonBK$141M
- Sphere EntertainmentSPHR$133M
- AmetekAME$132M
- American ExpressAXP$132M
- Modine ManufacturingMOD$131M
- MYEMYE$119M
Sold out
None this quarter.
Holdings
916 US-listed positions in the Q2 2026 13F, largest first (top 50 shown; all of them in Investingly).
| Stock | % of portfolio | Value | Shares | Last quarter |
|---|---|---|---|---|
| Madison Square Garden SportsMSGS | 2.12% | $237M | 589,128 | Added |
| CraneCR | 1.96% | $218M | 978,953 | Trimmed |
| Mueller IndustriesMLI | 1.70% | $190M | 1,542,150 | Trimmed |
| GATXGATX | 1.68% | $187M | 1,054,962 | Trimmed |
| Watts Water TechnologiesWTS | 1.40% | $156M | 399,032 | Trimmed |
| Bank of New York MellonBK | 1.27% | $141M | 976,858 | Trimmed |
| HercHRI | 1.26% | $140M | 976,739 | Added |
| Sphere EntertainmentSPHR | 1.19% | $133M | 765,913 | Trimmed |
| AmetekAME | 1.18% | $132M | 544,372 | Trimmed |
| American ExpressAXP | 1.18% | $132M | 388,962 | Trimmed |
| Modine ManufacturingMOD | 1.18% | $131M | 489,969 | Trimmed |
| Atlanta Braves Hlds A In-A | 1.08% | $121M | 2,144,996 | Held |
| MYEMYE | 1.07% | $119M | 3,374,319 | Trimmed |
| TextronTXT | 1.05% | $117M | 1,278,399 | Trimmed |
| Ryman Hospitality PropertiesRHP | 1.03% | $115M | 891,400 | Trimmed |
| Enpro IndustriesNPO | 0.95% | $106M | 281,677 | Trimmed |
| National Fuel GasNFG | 0.95% | $106M | 1,370,347 | Added |
| Republic Services | 0.85% | $95M | 446,379 | Held |
| Curtiss-WrightCW | 0.83% | $93M | 122,132 | Trimmed |
| Sony Group Corp - Sp Adr | 0.81% | $90M | 4,498,717 | Held |
| TelesatTSAT | 0.78% | $87M | 1,723,385 | Trimmed |
| Cnh Industrial Nv | 0.76% | $84M | 7,506,278 | Held |
| Rush Enterprises Inc - Cl B | 0.72% | $81M | 1,052,375 | Held |
| Oil-Dri Corporation Of AmericaODC | 0.71% | $80M | 778,050 | Trimmed |
| Ducommun | 0.71% | $79M | 427,832 | Held |
| FlowserveFLS | 0.70% | $78M | 1,050,126 | Trimmed |
| State StreetSTT | 0.69% | $76M | 451,003 | Trimmed |
| CTSCTS | 0.69% | $76M | 1,170,496 | Trimmed |
| Alphabet Inc Class CGOOG | 0.65% | $72M | 203,471 | Added |
| Penske AutomotivePAG | 0.63% | $71M | 394,387 | Trimmed |
| Allegheny TechnologiesATI | 0.63% | $71M | 358,000 | Trimmed |
| NVIDIANVDA | 0.62% | $70M | 347,468 | Added |
| Southwest GasSWX | 0.61% | $68M | 764,194 | Trimmed |
| Astec IndustriesASTE | 0.59% | $66M | 1,077,885 | Trimmed |
| Atlanta Braves Holdings, Inc. Series C Common StockBATRK | 0.59% | $66M | 1,268,288 | Trimmed |
| Mueller Water Products Inc-A | 0.59% | $66M | 2,538,072 | Held |
| Garrett MotionGTX | 0.56% | $62M | 1,707,035 | Trimmed |
| TennantTNC | 0.55% | $61M | 701,100 | Trimmed |
| Deere &DE | 0.53% | $59M | 93,565 | Trimmed |
| AutoNationAN | 0.53% | $59M | 317,018 | Trimmed |
| Sinclair BroadcastSBGI | 0.50% | $56M | 3,936,001 | Trimmed |
| Chart IndustriesGTLS | 0.50% | $56M | 266,881 | Trimmed |
| Telephone And Data Systems | 0.49% | $55M | 1,490,973 | Held |
| Rockwell AutomationROK | 0.49% | $55M | 111,389 | Trimmed |
| Grupo Televisa SAB ADRTV | 0.49% | $55M | 20,291,578 | Trimmed |
| RollinsROL | 0.49% | $55M | 1,310,305 | Trimmed |
| MaterionMTRN | 0.48% | $54M | 180,940 | Trimmed |
| JPMorgan Chase &JPM | 0.48% | $53M | 162,491 | Trimmed |
| Genuine PartsGPC | 0.47% | $53M | 448,830 | Added |
| AZZAZZ | 0.47% | $53M | 338,991 | Trimmed |
By sector
Share of the reported value.
Reported value over time
Total 13F value at each quarter end.
Questions
What stocks does Mario Gabelli own?
In the Q2 2026 13F, GAMCO Investors reported 916 US stock positions worth $11.1B. The largest: Madison Square Garden Sports (MSGS) 2.1%, Crane (CR) 2.0%, Mueller Industries (MLI) 1.7%, GATX (GATX) 1.7%, Watts Water Technologies (WTS) 1.4%.
What did Mario Gabelli buy last quarter?
In Q2 2026: new position in Honeywell Aerospace (HONA); new position in Micron Technology (MU); new position in OceanaGold (OGC); added to Madison Square Garden Sports (MSGS); added to Herc (HRI); added to National Fuel Gas (NFG).
When is Mario Gabelli's next 13F?
13F filings are due 45 days after each quarter ends. The Q3 2026 filing is due by November 14, 2026.
More investors
13F filings list US-listed long positions (and some options) held at quarter end. They leave out short positions, cash, bonds and non-US holdings, and arrive up to 45 days after the quarter ends, so the investor may have traded since. Information only, not investment advice.