Mario Gabelli portfolio: stocks, buys and sells →
GAMCO Investors: full 13F, sectors and history
Type not verifiedPortfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 12, 2026 · data updated on Nov 5, 2026 · Q2 2026 13F (filing) ↗ · all its 13F filings ↗
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
GAMCO Investors reported a $11.1 bn portfolio of 891 companies (919 positions, counting each share class separately) to the SEC as of the end of Q2 2026. Its largest positions are MSGS, CR, MLI.
Sections with a free account
What it reported after the quarter end (Q2 2026)
The 13F shows the portfolio as of Jun 30, 2026. Since then GAMCO Investors has filed these own trades with the SEC (Form 4, when it owns more than 10% of a company or holds a role in it) and stakes above 5% (13D and 13G). It is not everything it did: only what it must report before the next 13F.
Stake reported in the company · event of Oct 27, 2026 · filed Oct 28, 2026 · filing ↗
Stake reported in the company · event of Sep 30, 2026 · filed Oct 2, 2026 · filing ↗
Stake reported in the company · event of Sep 21, 2026 · filed Sep 22, 2026 · filing ↗
Stake reported in the company · event of Sep 8, 2026 · filed Sep 10, 2026 · filing ↗
Stake reported in the company · event of Sep 1, 2026 · filed Sep 2, 2026 · filing ↗
Stake reported in the company · event of Aug 28, 2026 · filed Aug 31, 2026 · filing ↗
Stake reported in the company · event of Aug 21, 2026 · filed Aug 24, 2026 · filing ↗
Stake reported in the company · event of Aug 13, 2026 · filed Aug 14, 2026 · filing ↗
Plus 6 more, in its EDGAR filings.
What changed this quarter
604 positions with a change (31 new, 124 added to, 369 trimmed, 80 sold); also, 22 exited through an acquisition or merger, 4 entered through a spin-off.
No moves of 0.5 points of the portfolio or more.
The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.
Top holdings
- Madison Square Grdn Sprt CORMSGS2.1%
- CraneCR2.0%
- Mueller IndustriesMLI1.7%
- GATXGATX1.7%
- Atlanta Braves HoldingsBATRA · BATRK1.7%
- Watts Water TechnologiesWTS1.4%
- Bank of New York MellonBNY1.3%
- Herc HoldingsHRI1.3%
- Sphere EntertainmentSPHR1.2%
- AmetekAME1.2%
- American ExpressAXP1.2%
- Modine ManufacturingMOD1.2%
- Myers IndustriesMYE1.1%
- TextronTXT1.1%
- Ryman Hospitality PropertiesRHP1.0%
Portfolio by sector
- ● Industrials 31%
- ● Communication Services 15%
- ● Consumer Discretionary 13%
- ● Materials 10%
- ● Financials 9%
- ● Information Technology 7%
- ● Consumer Staples 4%
- ● Utilities 3%
- ● Health Care 3%
- ● Energy 3%
- ● Real Estate 2%
- ● No sector 2%
Stakes above 5% (13D/13G)
Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.
How we classify it
Type not verified: we have not assigned a type because we found no document that is enough to tell. Most 13F filers are in this situation: we only review in depth those that meet the portfolio criteria.
Not counted as a concentrated manager: its portfolio is not within 5 to 100 positions; its top 10 positions are under 45%. Its portfolio is shown all the same, but it is left out of manager counts, the consensus and the ranking. How this is decided
Managers of a similar size
A 13F portfolio value between a third and three times this one, whatever the type of filer. It is not a comparison of what they hold.
- Avoro Capital AdvisorsInvestment firm · $11.1 bn
- Rubric Capital ManagementInvestment firm · $10.9 bn
- RA Capital ManagementInvestment firm · $11.5 bn
- SRS Investment ManagementInvestment firm · $10.7 bn
- RTW InvestmentsInvestment firm · $11.7 bn
- Centersquare Investment ManagementInvestment firm · $11.7 bn