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Gamco Asset Management reported holdings

Quarter ended 30 June 2026. Filed with the SEC on 12 August 2026, signed by Douglas R. Jamieson, President - GAMCO Asset Management Inc.. Retrieved 14 October 2026.

$11.15B
Reported 13F value
938
Positions
14.9%
In the 10 largest
+9.7%
Value vs. prior quarter

Gamco Asset Management’s reported 13F holdings total $11.15B across 938 positions as of 30 June 2026. The ten largest make up 14.9% of it, and its value rose 9.7% from the prior quarter.

Form 13F lists long positions in exchange-traded securities over which the filer had investment discretion, valued at quarter end. It excludes cash, bonds held outside 13(f) securities, private funds, and assets the firm does not have discretion over, so the $11.15B reported here is not the firm's $11.69B in regulatory assets, and it does not represent any individual client's portfolio.

Largest positions

Madison Square Garden SportsEQUITY$236,735,196
Class
EQUITY
Share
2.1%
Crane COEQUITY$218,375,046
Class
EQUITY
Share
2.0%
Mueller Industries Inc.EQUITY$189,576,500
Class
EQUITY
Share
1.7%
Gatx Corp.EQUITY$186,928,717
Class
EQUITY
Share
1.7%
Watts Water Technologies-aEQUITY$156,201,076
Class
EQUITY
Share
1.4%
Bank OF New York Mellon Corp.EQUITY$141,263,435
Class
EQUITY
Share
1.3%
Herc Holdings Inc.EQUITY$140,005,768
Class
EQUITY
Share
1.3%
Sphere Entertainment COEQUITY$132,525,926
Class
EQUITY
Share
1.2%
Ametek Inc.EQUITY$131,705,362
Class
EQUITY
Share
1.2%
American Express COEQUITY$131,566,397
Class
EQUITY
Share
1.2%
Modine Manufacturing COEQUITY$130,831,522
Class
EQUITY
Share
1.2%
Atlanta Braves Hlds A In-aEQUITY$120,784,725
Class
EQUITY
Share
1.1%
Myers Industries Inc.EQUITY$119,147,204
Class
EQUITY
Share
1.1%
Textron Inc.EQUITY$117,267,540
Class
EQUITY
Share
1.1%
Ryman Hospitality PropertiesEQUITY$114,589,470
Class
EQUITY
Share
1.0%
Enpro Inc.EQUITY$106,172,512
Class
EQUITY
Share
1.0%
National Fuel Gas COEQUITY$105,804,492
Class
EQUITY
Share
0.9%
Republic Services Inc.EQUITY$95,114,437
Class
EQUITY
Share
0.9%
Curtiss-wright Corp.EQUITY$92,546,744
Class
EQUITY
Share
0.8%
Sony Group Corp. - SP ADRDEPOSITORY RECEI$90,244,263
Class
DEPOSITORY RECEI
Share
0.8%
Telesat Corp.EQUITY$87,237,749
Class
EQUITY
Share
0.8%
Cnh Industrial NVEQUITY$84,295,502
Class
EQUITY
Share
0.8%
Rush Enterprises Inc. - CL BEQUITY$80,506,688
Class
EQUITY
Share
0.7%
Oil-dri Corp. OF AmericaEQUITY$79,524,491
Class
EQUITY
Share
0.7%
Ducommun Inc.EQUITY$79,238,765
Class
EQUITY
Share
0.7%
Flowserve Corp.EQUITY$77,877,344
Class
EQUITY
Share
0.7%
State Street Corp.EQUITY$76,490,109
Class
EQUITY
Share
0.7%
Cts Corp.EQUITY$76,304,634
Class
EQUITY
Share
0.7%
Alphabet Inc.-cl CEQUITY$71,892,408
Class
EQUITY
Share
0.6%
Penske Automotive Group Inc.EQUITY$70,575,554
Class
EQUITY
Share
0.6%
Ati Inc.EQUITY$70,561,800
Class
EQUITY
Share
0.6%
Nvidia Corp.EQUITY$69,524,872
Class
EQUITY
Share
0.6%
Southwest Gas Holdings Inc.EQUITY$67,768,724
Class
EQUITY
Share
0.6%
Astec Industries Inc.EQUITY$65,955,783
Class
EQUITY
Share
0.6%
Atlanta Braves Hlds C In-cEQUITY$65,824,147
Class
EQUITY
Share
0.6%
Mueller Water Products Inc.-aEQUITY$65,558,400
Class
EQUITY
Share
0.6%
Garrett Motion Inc.EQUITY$61,845,878
Class
EQUITY
Share
0.6%
Tennant COEQUITY$61,374,294
Class
EQUITY
Share
0.6%
Deere & COEQUITY$59,351,086
Class
EQUITY
Share
0.5%
Autonation Inc.EQUITY$58,898,774
Class
EQUITY
Share
0.5%
Sinclair Inc.EQUITY$56,088,014
Class
EQUITY
Share
0.5%
Chart Industries Inc.EQUITY$55,762,116
Class
EQUITY
Share
0.5%
Telephone And Data SystemsEQUITY$55,180,911
Class
EQUITY
Share
0.5%
Rockwell Automation Inc.EQUITY$55,146,466
Class
EQUITY
Share
0.5%
Grupo Televisa Sa-spon ADRDEPOSITORY RECEI$54,990,176
Class
DEPOSITORY RECEI
Share
0.5%
Rollins Inc.EQUITY$54,692,110
Class
EQUITY
Share
0.5%
Materion Corp.EQUITY$53,809,747
Class
EQUITY
Share
0.5%
JPMORGAN Chase & COEQUITY$53,188,179
Class
EQUITY
Share
0.5%
Genuine Parts COEQUITY$52,952,963
Class
EQUITY
Share
0.5%
Azz Inc.EQUITY$52,560,555
Class
EQUITY
Share
0.5%

The share class is shown on a wider screen.

The 50 largest of 938 positions by value, with holdings of the same security combined. The 200 largest are in this firm's machine-readable record. Share counts and quarter-on-quarter changes for each position are on EDGAR. View the full information table on EDGAR

This filing

Form
13F-HR
CIK
807249
File number
028-01887
Options
0 call, 0 put
In the 25 largest
28.4%
Prior quarter
$10,155,808,033 at 31 March 2026
Positions opened
41
Positions closed
110

Common questions

What are Gamco Asset Management’s 13F holdings worth?

$11,145,091,361 across 938 positions for the quarter ended 30 June 2026.

What is Gamco Asset Management’s largest 13F holding?

MADISON SQUARE GARDEN SPORTS (EQUITY) was the largest position at $236,735,196, or 2.1% of reported 13F value, as of 30 June 2026.

How concentrated is Gamco Asset Management’s 13F portfolio?

The ten largest positions accounted for 14.9% of reported value and the twenty-five largest for 28.4%, across 938 positions as of 30 June 2026.

Does Form 13F show everything Gamco Asset Management manages?

No. Form 13F covers only long positions in exchange-traded securities over which the manager has investment discretion, valued at quarter end. It excludes cash, most bonds, private funds, and any assets the firm does not have discretion over, so it is neither the firm's total assets nor any individual client's portfolio.

How often does Gamco Asset Management file its 13F?

Every quarter. Managers file within 45 days of each quarter's end, so the figures are a snapshot that changes between filings. This page shows the quarter ended 30 June 2026.

Answered from this filing and the prior quarter's.

Back to the Gamco Asset Management profile

Sources

  1. Form 13F-HR, accession 0001140361-26-032508, filed 12 August 2026 for the quarter ended 30 June 2026.
  2. Form 13F-HR, accession 0001140361-26-021334, filed 14 May 2026 for the quarter ended 31 March 2026.
  3. All 13F filings by this firm on EDGAR.

Retrieved 14 October 2026. Values are as reported by the filer in whole dollars; percentages and quarter-over-quarter figures are arithmetic on the filed tables.

Report a correction

This page restates a public SEC filing for informational purposes only. It is not a recommendation of any security or of Gamco Asset Management Inc., and Niva Wealth is not affiliated with the firm. Holdings change; the filing reflects one quarter-end date.