Mustard Seed Investor logo: a sprouting mustard seedMustard Seed Investor
← All investors
GAMCO Investors

Mario Gabelli

CIK 0000807249 ↗ ⓘCIK: The SEC's ID number for a filer (Central Index Key). Every manager, company and fund has one; it is the surest way to find all of someone's filings on EDGAR, even when names change or are spelled differently. Guide View this SEC filing ↗ All SEC filings ↗ Filed Aug 12, 2026
Download report
In plain English: this page lists every stock Mario Gabelli's fund told the SEC it owned at the end of the quarter, biggest first, and what changed since the quarter before — "New" means they bought it for the first time, "Sold" means they sold all of it. The list is at least 6 weeks old, and it is only part of their investments (no cash, bonds or bets against stocks).

Educational and informational only, not personalized investment advice. Based on public filings that may be delayed or contain errors; verify with the original filings. Disclaimer

Biggest moves · Q2 2026 -$47.28M IVV-$43.39M Honeywell Intl. (sold)-$28.89M GDEN (sold)+$25.35M HON (new)
Reported value ⓘTotal of long stock positions in this 13F. Options are listed separately and not included.
$11.15B
Q2 2026
Quarter change
+9.7%
vs Q1 2026 ($10.16B)
Holdings
938
Top-10 weight 14.9%
Activity
40 new · 109 sold out
176 added to · 463 trimmed

Investing style at a glance · Q2 2026

Worked out from this 13F only (long stock positions). ⓘConcentration: The share of a portfolio in its 10 largest positions. High = a few big bets; low = spread out. Guide ⓘTurnover: How many positions were opened or closed this quarter compared with the number held. Guide

Portfolio value over time

Reported 13F value per quarter

Chart: Portfolio value over time

Sector allocation

Q2 2026

Chart: Sector allocation

Top holdings over time

Share of the portfolio each quarter (current top 5)

Chart: Top holdings over time

Quarter-by-quarter activity

Positions bought (new or added) vs sold (trimmed or exited)

Chart: Quarter-by-quarter activity

🔒 The advanced charts (performance, sector allocation over time, adds vs. trims) is a Plus feature

You're viewing the Free plan. Upgrade to unlock The advanced charts (performance, sector allocation over time, adds vs. trims) — every paid plan starts with a 7-day free trial, and you can cancel in two clicks.

See plans & upgrade Sign in

Holdings

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

Ticker Company Sector Shares Value ↓ % of portfolio Change Δ shares Δ shares % Est. Δ value ⓘChange in shares × this quarter's price
MSGK MSG Knickerbockers Corp (Class A) Unclassified 589.13K $236.74M 2.1% Added +1.5K +0.3% +$593.12K
CR Crane Co Industrials 978.95K $218.38M 2.0% Reduced -19.4K -1.9% -$4.34M
MLI Mueller Industries Inc Materials 1.54M $189.58M 1.7% Reduced -95.4K -5.8% -$11.72M
GATX Gatx Corp Industrials 1.05M $186.93M 1.7% Reduced -46.0K -4.2% -$8.15M
WTS Watts Water Technologies Inc (Class A) Industrials 399.03K $156.20M 1.4% Reduced -5.1K -1.3% -$1.98M
BNY Bank of New York Mellon Corp Financials 976.86K $141.26M 1.3% Reduced -66.2K -6.3% -$9.58M
HRI Herc Holdings Inc Industrials 976.74K $140.01M 1.3% Added +3.6K +0.4% +$515.74K
SPHR Sphere Entertainment Co (Class A) Consumer Discretionary 765.91K $132.53M 1.2% Reduced -28.8K -3.6% -$4.99M
AME Ametek Inc Information Technology 544.37K $131.71M 1.2% Reduced -4.2K -0.8% -$1.02M
AXP American Express Co Financials 388.96K $131.57M 1.2% Reduced -4.7K -1.2% -$1.61M
MOD Modine Manufacturing Co Consumer Discretionary 489.97K $130.83M 1.2% Reduced -61.4K -11.1% -$16.40M
BATRA Atlanta Braves Holdings, Inc (Class A) Consumer Discretionary 2.14M $120.78M 1.1% Reduced -28.2K -1.3% -$1.59M
MYE Myers Industries Inc Materials 3.37M $119.15M 1.1% Reduced -55.4K -1.6% -$1.96M
TXT Textron Inc Industrials 1.28M $117.27M 1.1% Reduced -13.8K -1.1% -$1.26M
RHP Ryman Hospitality Properties, Inc Real Estate 891.40K $114.59M 1.0% Reduced -33.8K -3.7% -$4.34M
NPO Enpro Inc Materials 281.68K $106.17M 1.0% Reduced -25.6K -8.3% -$9.65M
NFG National Fuel Gas Co Utilities 1.37M $105.80M 0.9% Added +1.0K +0.1% +$78.83K
RSG Republic Services, Inc Utilities 446.38K $95.11M 0.9% Reduced -4.6K -1.0% -$971.86K
CW Curtiss Wright Corp Industrials 122.13K $92.55M 0.8% Reduced -3.3K -2.6% -$2.51M
SONY Sony Group Corp Consumer Discretionary 4.50M $90.24M 0.8% Reduced -90.4K -2.0% -$1.81M
TSAT Telesat Corp (Class A) Communication Services 1.72M $87.24M 0.8% Reduced -45.8K -2.6% -$2.32M
CNH CNH Industrial N.V. Industrials 7.51M $84.30M 0.8% Added +34.1K +0.5% +$383.34K
RUSHB Rush Enterprises Inc \tx\ (Class B) Consumer Discretionary 1.05M $80.51M 0.7% Reduced -13.6K -1.3% -$1.04M
ODC Oil-Dri Corp of America Consumer Discretionary 778.05K $79.52M 0.7% Reduced -4.4K -0.6% -$449.72K
DCO Ducommun Inc Industrials 427.83K $79.24M 0.7% Reduced -21.6K -4.8% -$4.01M
FLS Flowserve Corp Industrials 1.05M $77.88M 0.7% Reduced -16.0K -1.5% -$1.19M
STT State Street Corp Financials 451.00K $76.49M 0.7% Reduced -8.7K -1.9% -$1.47M
CTS CTS Corp Information Technology 1.17M $76.30M 0.7% Reduced -28.3K -2.4% -$1.84M
GOOG Alphabet Inc (Class C) Communication Services 203.47K $71.89M 0.6% Added +15.6K +8.3% +$5.52M
PAG Penske Automotive Group, Inc Consumer Discretionary 394.39K $70.58M 0.6% Reduced -608 -0.2% -$108.80K
ATI Ati Inc Materials 358.00K $70.56M 0.6% Reduced -3.5K -1.0% -$689.85K
NVDA Nvidia Corp Information Technology 347.47K $69.52M 0.6% Added +15.6K +4.7% +$3.11M
SWX Southwest Gas Holdings, Inc Utilities 764.19K $67.77M 0.6% Reduced -18.6K -2.4% -$1.65M
ASTE Astec Industries Inc Industrials 1.08M $65.96M 0.6% Reduced -24.4K -2.2% -$1.49M
BATRK Atlanta Braves Holdings, Inc (Class C) Consumer Discretionary 1.27M $65.82M 0.6% Reduced -63.8K -4.8% -$3.31M
MWA Mueller Water Products, Inc (Class A) Industrials 2.54M $65.56M 0.6% Reduced -11.4K -0.4% -$294.33K
GTX Garrett Motion Inc Consumer Discretionary 1.71M $61.85M 0.6% Reduced -245.8K -12.6% -$8.91M
TNC Tennant Co Industrials 701.10K $61.37M 0.6% Reduced -5.3K -0.8% -$463.96K
DE Deere & Co Industrials 93.56K $59.35M 0.5% Reduced -1.4K -1.4% -$862.05K
AN Autonation, Inc Consumer Discretionary 317.02K $58.90M 0.5% Reduced -300 -0.1% -$55.74K
SBGI Sinclair, Inc (Class A) Communication Services 3.94M $56.09M 0.5% Reduced -51.3K -1.3% -$731.64K
— Chart Industries Inc Unclassified 266.88K $55.76M 0.5% Reduced -4.2K -1.6% -$881.52K
TDS Telephone & Data Systems Inc Communication Services 1.49M $55.18M 0.5% Reduced -15.0K -1.0% -$556.56K
ROK Rockwell Automation, Inc Information Technology 111.39K $55.15M 0.5% Reduced -2.2K -2.0% -$1.10M
TV Grupo Televisa, S.a.b. Communication Services 20.29M $54.99M 0.5% Reduced -449.1K -2.2% -$1.22M
ROL Rollins Inc Industrials 1.31M $54.69M 0.5% Reduced -11.0K -0.8% -$459.22K
MTRN Materion Corp Industrials 180.94K $53.81M 0.5% Reduced -10.3K -5.4% -$3.06M
JPM Jpmorgan Chase & Co Financials 162.49K $53.19M 0.5% Reduced -1.3K -0.8% -$428.47K
GPC Genuine Parts Co Industrials 448.83K $52.95M 0.5% Added +51.3K +12.9% +$6.05M
AZZ Azz Inc Industrials 338.99K $52.56M 0.5% Reduced -24.4K -6.7% -$3.78M

Sold out this quarter

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

Ticker Company Sector Shares sold Value last quarter ↓
— Osisko Development Corp Unclassified -61.6K $200.30K
CNNE Cannae Holdings, Inc Consumer Discretionary -17.0K $193.29K
— Cantaloupe Inc Unclassified -17.0K $183.77K
ARLO Arlo Technologies, Inc Industrials -12.7K $180.72K
WSBF Waterstone Financial, Inc Financials -10.0K $180.30K
ALIT Alight, Inc. / Delaware (Class A) Industrials -295.7K $172.29K
TIC TIC Solutions, Inc Industrials -10.0K $65.80K
BLZE Backblaze, Inc (Class A) Information Technology -14.4K $49.68K
GAB-R Gabelli Equity Trust-Rt Unclassified -841.7K $5.89K
13F filings on record (4)
QuarterFormFiledTypeRowsLong value
Q2 202613F-HRAug 12, 2026Original938$11.15BSEC ↗
Q1 202613F-HRMay 14, 2026Original1007$10.16BSEC ↗
Q4 202513F-HRFeb 5, 2026Original1036$10.41BSEC ↗
Q3 202513F-HRNov 12, 2025Original1015$10.31BSEC ↗

🔒 This manager's full history (all quarters and every 13F filing on record) is a Basic feature

You're viewing the Free plan. Upgrade to unlock This manager's full history (all quarters and every 13F filing on record) — every paid plan starts with a 7-day free trial, and you can cancel in two clicks.

See plans & upgrade Sign in