Institutional manager · SEC 13F
Mario Gabelli
GAMCO INVESTORS, INC. ET AL
- Reported book
- $11B
- Reported positions
- 971
- As of
- Jun 30, 2026
Largest disclosed holdingstop 3 of 971
- MSGSMADISON SQUARE GARDEN SPORTS$236.7M2.1%
- CRCRANE CO$218.4M2.0%
- MLIMUELLER INDUSTRIES INC$189.6M1.7%
The complete book — every position with weights, share counts and quarter-over-quarter changes — is in the live dashboard.
Track Mario Gabelli live — and everyone else
The dashboard reads every new filing within minutes: every 13F, Form 4 and Schedule the moment it clears EDGAR — plus live insider buying across the whole market, the most-bought board, and performance versus the S&P. Free to start.
Get the free Insider Brief
The week's real signals — open-market insider buys, cluster formations and new filings from Mario Gabelli — in plain English, with grants and routine vesting stripped out. Free, and honest about what the data can and cannot say.
Sign up free