GAMCO Investors (Mario Gabelli)

GAMCO INVESTORS, INC. ET AL · CIK 0000807249 · GREENWICH, CT · Quarter end: 2026-06-30 · Filed on: 2026-08-12 · Open the SEC sourceActivist Investor

GAMCO Investors (Mario Gabelli) (GAMCO INVESTORS, INC. ET AL) reported 938 positions worth $11.15B as of June 30, 2026 (13F filed August 12, 2026). Largest holding: MSGS (2.1%).

Portfolio Value (AUM)Total value of the fund's US stock portfolio reported to the SEC.
$11.15B
2026 Q2
Positions
938
Top-10 ConcentrationHow much of the portfolio sits in the 10 largest holdings. High = concentrated bets.
14.9%
Est. Net Flow (Q)
2026 Q2
10 / 938 positions shown
#SymbolCompanyTypeValue% Port.Shares1YYTD
1MSGSMADISON SQUARE GARDEN SPORTSSH$236.7M2.12%589,128
2CRCRANE COSH$218.4M1.96%978,953
3MLIMUELLER INDUSTRIES INCSH$189.6M1.70%1,542,150
4GATXGATX CORPSH$186.9M1.68%1,054,962
5WTSWATTS WATER TECHNOLOGIES-ASH$156.2M1.40%399,032
6BNYBANK OF NEW YORK MELLON CORPSH$141.3M1.27%976,858
7HRIHERC HOLDINGS INCSH$140.0M1.26%976,739
8SPHRSPHERE ENTERTAINMENT COSH$132.5M1.19%765,913
9AMEAMETEK INCSH$131.7M1.18%544,372
10AXPAMERICAN EXPRESS COSH$131.6M1.18%388,962

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Read the 2026-Q2 quarterly report · 13F Filing Calendar

Frequently Asked Questions

What stocks does GAMCO Investors (Mario Gabelli) hold as of Q2 2026?

GAMCO Investors (Mario Gabelli) reported 938 positions worth $11.15B in its Q2 2026 13F filing. Largest positions: MSGS (2.1%), CR (2.0%), MLI (1.7%), GATX (1.7%) and WTS (1.4%).

What did GAMCO Investors (Mario Gabelli) buy in Q2 2026?

No previous quarter is available yet; the comparison appears with the next filing.

What did GAMCO Investors (Mario Gabelli) sell in Q2 2026?

No previous quarter is available yet.

13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.