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GAMCO INVESTORS, INC. ET AL — 13F Holdings & Portfolio

CIK 807249 · latest 13F-HR filed 2026-08-12

Backtest portfolio

GAMCO INVESTORS, INC. ET AL manages $11.15B in 13F-reported U.S. long-equity assets across 938 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are MSGS (2.12%), CR (1.96%), MLI (1.70%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 41 new positions, exited 110, added to 441, and trimmed 272.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

Filer Information
Address
191 MASON STREET
GREENWICH, CT 06830
Phone
(914) 921-5000
Filing Manager
GAMCO INVESTORS, INC. ET AL
GREENWICH, CT
Signatory
Douglas R. Jamieson
President - GAMCO Asset Management Inc.
Loading holdings…
AUM

$11.15B

Long-equity book

Holdings

938

Distinct positions

Period

2026-06-30

Filed 2026-08-12

Q/Q Activity

+41 / −110 / ↑441 / ↓272

vs 2026-03-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • MADISON SQUARE GARDEN SPORTS$47.9M +25.3%
  • CRANE CO$47.7M +27.9%
  • MYERS INDUSTRIES INC$46.5M +64.0%
  • HERC HOLDINGS INC$43.1M +44.5%
  • SPHERE ENTERTAINMENT CO$39.2M +42.0%
Show all 441 →

Top Trims

  • ISHRS CORE S&P 500-$40.7M -90.2%
  • NATIONAL FUEL GAS CO-$22.9M -17.8%
  • WARNER BROS DISCOVERY INC-$20.4M -37.2%
  • VANGUARD TOTAL STOCK MKT ETF-$19.0M -96.8%
  • ROLLINS INC-$15.9M -22.5%
Show all 272 →

New Positions

  • HONEYWELL INTERNATIONAL INC$25.3M
  • HONEYWELL AEROSPACE INC$25.0M
  • MICRON TECHNOLOGY INC$9.4M
  • OCEANAGOLD CORP$6.3M
  • HILTON WORLDWIDE HOLDINGS IN$6.3M
Show all 41 →

Exited Positions

  • HONEYWELL INTERNATIONAL INC$43.4M
  • GOLDEN ENTERTAINMENT INC$28.9M
  • MASIMO CORP$16.4M
  • FLUSHING FINANCIAL CORP$13.0M
  • CALAVO GROWERS INC$12.4M
Show all 110 →
All Holdings

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 MADISON SQUARE GARDEN SPORTS MSGS 55825T103 $236.7M 2.12% 589,128 SH
2 CRANE CO CR 224408104 $218.4M 1.96% 978,953 SH
3 MUELLER INDUSTRIES INC MLI 624756102 $189.6M 1.70% 1,542,150 SH
4 GATX CORP GATX 361448103 $186.9M 1.68% 1,054,962 SH
5 WATTS WATER TECHNOLOGIES-A WTS 942749102 $156.2M 1.40% 399,032 SH
6 BANK OF NEW YORK MELLON CORP BNY 064058100 $141.3M 1.27% 976,858 SH
7 HERC HOLDINGS INC HRI 42704L104 $140.0M 1.26% 976,739 SH
8 SPHERE ENTERTAINMENT CO SPHR 55826T102 $132.5M 1.19% 765,913 SH
9 AMETEK INC AME 031100100 $131.7M 1.18% 544,372 SH
10 AMERICAN EXPRESS CO AXP 025816109 $131.6M 1.18% 388,962 SH
11 MODINE MANUFACTURING CO MOD 607828100 $130.8M 1.17% 489,969 SH
12 ATLANTA BRAVES HLDS A IN-A BATRA 047726104 $120.8M 1.08% 2,144,996 SH
13 MYERS INDUSTRIES INC MYE 628464109 $119.1M 1.07% 3,374,319 SH
14 TEXTRON INC TXT 883203101 $117.3M 1.05% 1,278,399 SH
15 RYMAN HOSPITALITY PROPERTIES RHP 78377T107 $114.6M 1.03% 891,400 SH
16 ENPRO INC NPO 29355X107 $106.2M 0.95% 281,677 SH
17 NATIONAL FUEL GAS CO NFG 636180101 $105.8M 0.95% 1,370,347 SH
18 REPUBLIC SERVICES INC RSG 760759100 $95.1M 0.85% 446,379 SH
19 CURTISS-WRIGHT CORP CW 231561101 $92.5M 0.83% 122,132 SH
20 SONY GROUP CORP - SP ADR SONY 835699307 $90.2M 0.81% 4,498,717 SH
21 TELESAT CORP TSAT 879512309 $87.2M 0.78% 1,723,385 SH
22 CNH INDUSTRIAL NV CNH N20944109 $84.3M 0.76% 7,506,278 SH
23 RUSH ENTERPRISES INC - CL B RUSHB 781846308 $80.5M 0.72% 1,052,375 SH
24 OIL-DRI CORP OF AMERICA ODC 677864100 $79.5M 0.71% 778,050 SH
25 DUCOMMUN INC DCO 264147109 $79.2M 0.71% 427,832 SH
26 FLOWSERVE CORP FLS 34354P105 $77.9M 0.70% 1,050,126 SH
27 STATE STREET CORP STT 857477103 $76.5M 0.69% 451,003 SH
28 CTS CORP CTS 126501105 $76.3M 0.68% 1,170,496 SH
29 ALPHABET INC-CL C GOOG 02079K107 $71.9M 0.65% 203,471 SH
30 PENSKE AUTOMOTIVE GROUP INC PAG 70959W103 $70.6M 0.63% 394,387 SH
31 ATI INC ATI 01741R102 $70.6M 0.63% 358,000 SH
32 NVIDIA CORP NVDA 67066G104 $69.5M 0.62% 347,468 SH
33 SOUTHWEST GAS HOLDINGS INC SWX 844895102 $67.8M 0.61% 764,194 SH
34 ASTEC INDUSTRIES INC ASTE 046224101 $66.0M 0.59% 1,077,885 SH
35 ATLANTA BRAVES HLDS C IN-C BATRK 047726302 $65.8M 0.59% 1,268,288 SH
36 MUELLER WATER PRODUCTS INC-A MWA 624758108 $65.6M 0.59% 2,538,072 SH
37 GARRETT MOTION INC GTX 366505105 $61.8M 0.55% 1,707,035 SH
38 TENNANT CO TNC 880345103 $61.4M 0.55% 701,100 SH
39 DEERE & CO DE 244199105 $59.4M 0.53% 93,565 SH
40 AUTONATION INC AN 05329W102 $58.9M 0.53% 317,018 SH
41 SINCLAIR INC SBGI 829242106 $56.1M 0.50% 3,936,001 SH
42 CHART INDUSTRIES INC GTLS 16115Q308 $55.8M 0.50% 266,881 SH
43 TELEPHONE AND DATA SYSTEMS TDS 879433829 $55.2M 0.50% 1,490,973 SH
44 ROCKWELL AUTOMATION INC ROK 773903109 $55.1M 0.49% 111,389 SH
45 GRUPO TELEVISA SA-SPON ADR TV 40049J206 $55.0M 0.49% 20,291,578 SH
46 ROLLINS INC ROL 775711104 $54.7M 0.49% 1,310,305 SH
47 MATERION CORP MTRN 576690101 $53.8M 0.48% 180,940 SH
48 JPMORGAN CHASE & CO JPM 46625H100 $53.2M 0.48% 162,491 SH
49 GENUINE PARTS CO GPC 372460105 $53.0M 0.48% 448,830 SH
50 AZZ INC AZZ 002474104 $52.6M 0.47% 338,991 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-12 $11.15B 938 0001140361-26-032508
2026-03-31 2026-05-14 $10.16B 1,007 0001140361-26-021334
2025-12-31 2026-02-05 $10.41B 1,036 0001140361-26-003895
2025-09-30 2025-11-12 $10.31B 1,015 0001140361-25-041670