What GAMCO Investors Inc changed, 2013 to 2026
53 quarterly 13F filings, from Q2 2013 to Q2 2026, each read from the filing itself. A quarter is compared only with the quarter before it, so a quarter with no filing is a gap in the record, not a sale.
Reported book
$11.1bn
$15.9bn at Q2 2013
Positions
938
800 at Q2 2013
Top ten weight
15%
14% at Q2 2013
Typical quarterly turnover
about 4%
Estimated from share changes
- Q2 2013: $15.9bn
- Q3 2013: $17.0bn
- Q4 2013: $18.7bn
- Q1 2014: $18.5bn
- Q2 2014: $19.1bn
- Q3 2014: $18.6bn
- Q4 2014: $19.2bn
- Q1 2015: $19.1bn
- Q2 2015: $18.5bn
- Q3 2015: $15.2bn
- Q4 2015: $15.3bn
- Q1 2016: $15.2bn
- Q2 2016: $15.1bn
- Q3 2016: $15.4bn
- Q4 2016: $15.8bn
- Q1 2017: $15.8bn
- Q2 2017: $15.7bn
- Q3 2017: $16.2bn
- Q4 2017: $16.0bn
- Q1 2018: $14.8bn
- Q2 2018: $14.7bn
- Q3 2018: $14.8bn
- Q4 2018: $11.8bn
- Q1 2019: $13.1bn
- Q2 2019: $13.2bn
- Q3 2019: $12.0bn
- Q4 2019: $12.5bn
- Q1 2020: $8.5bn
- Q2 2020: $8.8bn
- Q3 2020: $9.0bn
- Q4 2020: $10.7bn
- Q1 2021: $11.4bn
- Q2 2021: $11.8bn
- Q3 2021: $11.3bn
- Q4 2021: $11.7bn
- Q1 2022: $11.1bn
- Q2 2022: $9.1bn
- Q3 2022: $8.5bn
- Q4 2022: $9.3bn
- Q1 2023: $9.3bn
- Q2 2023: $9.5bn
- Q3 2023: $8.6bn
- Q4 2023: $9.4bn
- Q1 2024: $9.9bn
- Q2 2024: $9.2bn
- Q3 2024: $9.8bn
- Q4 2024: $9.5bn
- Q1 2025: $9.1bn
- Q2 2025: $10.1bn
- Q3 2025: $10.3bn
- Q4 2025: $10.4bn
- Q1 2026: $10.2bn
- Q2 2026: $11.1bn
- Q2 2013: 14%
- Q3 2013: 14%
- Q4 2013: 14%
- Q1 2014: 14%
- Q2 2014: 14%
- Q3 2014: 14%
- Q4 2014: 14%
- Q1 2015: 13%
- Q2 2015: 14%
- Q3 2015: 14%
- Q4 2015: 13%
- Q1 2016: 13%
- Q2 2016: 13%
- Q3 2016: 13%
- Q4 2016: 14%
- Q1 2017: 13%
- Q2 2017: 14%
- Q3 2017: 14%
- Q4 2017: 14%
- Q1 2018: 15%
- Q2 2018: 15%
- Q3 2018: 15%
- Q4 2018: 15%
- Q1 2019: 14%
- Q2 2019: 14%
- Q3 2019: 14%
- Q4 2019: 15%
- Q1 2020: 14%
- Q2 2020: 13%
- Q3 2020: 13%
- Q4 2020: 14%
- Q1 2021: 14%
- Q2 2021: 14%
- Q3 2021: 15%
- Q4 2021: 15%
- Q1 2022: 16%
- Q2 2022: 15%
- Q3 2022: 15%
- Q4 2022: 16%
- Q1 2023: 16%
- Q2 2023: 15%
- Q3 2023: 15%
- Q4 2023: 16%
- Q1 2024: 17%
- Q2 2024: 16%
- Q3 2024: 17%
- Q4 2024: 17%
- Q1 2025: 17%
- Q2 2025: 16%
- Q3 2025: 16%
- Q4 2025: 15%
- Q1 2026: 14%
- Q2 2026: 15%
The positions that defined it
Every position that was ever among the 25 largest: when it first appeared, when it was largest, and where it stands in Q2 2026. The line is its reported value each quarter.
| Position | Value over time | First listed | Largest | Q2 2026 |
|---|---|---|---|---|
| Madison Square Garden Co Newcl(MSGS) | Q4 2022 | $237mQ2 2026 | $237m | |
| Crane Co(CR) | Q2 2023 | $218mQ2 2026 | $218m | |
| Mueller Inds Inc Com(MLI) | Q4 2022 | $226mQ3 2024 | $190m | |
| Gatx Corp(GATX) | Q4 2022 | $214mQ3 2025 | $187m | |
| Watts Water Technologies(WTS) | Q4 2022 | $156mQ2 2026 | $156m | |
| Bank of New York Mellon Corp(BNY) | Q4 2022 | $142mQ3 2025 | $141m | |
| Herc HLDGS Inc Com(HRI) | Q4 2022 | $262mQ1 2024 | $140m | |
| Madison Sqre GD Entert(SPHR) | Q4 2022 | $133mQ2 2026 | $133m | |
| Ametek Inc New Com(AME) | Q4 2022 | $132mQ2 2026 | $132m | |
| American Express Co(AXP) | Q4 2022 | $156mQ4 2025 | $132m | |
| Modine MFG Co(MOD) | Q4 2022 | $170mQ3 2024 | $131m | |
| Atlanta Braves HLDS A In-a(BATRA) | Q3 2023 | $121mQ2 2026 | $121m | |
| Herc HLDGS Inc Com(HRI) | Q3 2016 | $365mQ3 2021 | Below the listed rangelast listed Q3 2022 | |
| Directv | Q2 2013 | $339mQ3 2014 | Soldlast listed Q2 2015 | |
| Cablevision Sys Ny Group A | Q2 2013 | $323mQ3 2015 | Soldlast listed Q1 2016 | |
| American Express Co(AXP) | Q2 2013 | $309mQ4 2013 | Below the listed rangelast listed Q3 2022 | |
| Ryman Hospitality Pptys Inc Co(RHP) | Q2 2013 | $305mQ1 2015 | Below the listed rangelast listed Q3 2022 | |
| Viacom Inc New CL A | Q2 2013 | $304mQ4 2013 | Soldlast listed Q3 2019 | |
| National Fuel Gas Co N J Com(NFG) | Q2 2013 | $293mQ2 2014 | Below the listed rangelast listed Q3 2022 | |
| Bank of New York Mellon Corp(BNY) | Q2 2013 | $287mQ3 2017 | Below the listed rangelast listed Q3 2022 |
Quarter by quarter
Q1 2025: $9.1bn across 854 positions
Against Q4 2024: 32 new, 254 added to, 391 trimmed, 49 sold out, across all 854 positions.
Turnover about 2% of the book, estimated from share changes at quarter-end prices.
Largest additions
- National Fuel Gas Co N J Com (NFG)+$31m
- Newmont Mining Corp Holding Co (NEM)+$7.6m
- Atlanta Braves HLDS A In-a (BATRA)+$7.0m
- Fox Corp CL B (FOX)+$5.0m
- Arthur J Gallagher & Co (AJG)+$4.5m
- A T & T Inc (new) (T)+$4.3m
- Myers Inds Inc (MYE)+$4.2m
- Algonquin Power & Utilities (AQN)+$3.7m
Largest reductions
- Herc HLDGS Inc Com (HRI)-$66m
- Modine MFG Co (MOD)-$49m
- American Express Co (AXP)-$21m
- Patterson Companies Inc-$19m
- Sunrise Communicat-cl A-$15m
- CTS Corp (CTS)-$14m
- Ryman Hospitality Pptys Inc Co (RHP)-$13m
- Enpro Inds Inc Com (NPO)-$12m
Opened
Nothing new among the largest positions.
Sold out
- Revelyst Incwas $9.9m
- Summit Materials Inc -cl Awas $9.3m
- Hashicorp Inc-cl Awas $4.7m
- Ballys Corporation Comwas $3.1m
- Arcadium Lithium PLCwas $2.7m
- Smartsheet Inc-class Awas $2.5m
- Barnes Group Inc Comwas $2.3m
- Kimco Rlty Corp Com (KIM)was $1.9m
Largest positions, Q1 2025
The largest 25 of 854 reported positions; the largest 500 carry 97.5% of the reported value.
| Position | Value | Weight | On the quarter |
|---|---|---|---|
| Mueller Inds Inc Com (MLI) | $203m | 2.2% | Trimmed |
| Gatx Corp (GATX) | $202m | 2.2% | Trimmed |
| Crane Co (CR) | $179m | 2.0% | Trimmed |
| Sony Corp-adr (b:sne Us) (SONY) | $154m | 1.7% | Trimmed |
| Herc HLDGS Inc Com (HRI) | $146m | 1.6% | Trimmed |
| American Express Co (AXP) | $132m | 1.5% | Trimmed |
| Bank of New York Mellon Corp (BNY) | $125m | 1.4% | Trimmed |
| Republic SVCS Inc CL A (RSG) | $124m | 1.4% | Trimmed |
| National Fuel Gas Co N J Com (NFG) | $118m | 1.3% | Added |
| Madison Square Garden Co Newcl (MSGS) | $117m | 1.3% | Added |
| Ametek Inc New Com (AME) | $110m | 1.2% | Trimmed |
| Textron Inc (TXT) | $104m | 1.1% | Trimmed |
| Atlanta Braves HLDS A In-a (BATRA) | $99m | 1.1% | Added |
| CNH Industrial NV (CNH) | $97m | 1.1% | Trimmed |
| Watts Water Technologies (WTS) | $94m | 1.0% | Trimmed |
| Rollins Inc (ROL) | $92m | 1.0% | Trimmed |
| United States Cellular Corp (AD) | $92m | 1.0% | Trimmed |
| Modine MFG Co (MOD) | $91m | 1.0% | Trimmed |
| Ryman Hospitality Pptys Inc Co (RHP) | $88m | 1.0% | Trimmed |
| Telephone & Data Sys (TDS) | $73m | 0.8% | Trimmed |
| Mueller Water Products Inc (MWA) | $71m | 0.8% | Trimmed |
| Flowserve Corp Com (FLS) | $64m | 0.7% | Trimmed |
| Enpro Inds Inc Com (NPO) | $63m | 0.7% | Trimmed |
| Deere & Co. (DE) | $63m | 0.7% | Trimmed |
| O'reilly Automotive Inc New Co (ORLY) | $62m | 0.7% | Trimmed |
The books most like this one
Among the managers whose filings are on file, at Q2 2026. Overlap is the share of the two books that is the same: for every stock both list, the smaller of its two weights, added up. Two books can overlap because both own the largest companies; it says nothing about whether the managers agree.
| Manager | Overlap | Stocks in both | Overlap over time | |
|---|---|---|---|---|
| Neuberger Berman Group LLC | at least 16% | 159 | Compare | |
| AQR Capital Management LLC | at least 15% | 150 | Compare | |
| Woodline Partners LP | at least 15% | 139 | Compare | |
| Invesco Ltd | at least 14% | 161 | Compare | |
| Man Group PLC | at least 14% | 126 | Compare | |
| Wellington Management Group LLP | at least 14% | 127 | Compare | |
| AllianceBernstein LP | at least 13% | 146 | Compare | |
| T. Rowe Price Associates Inc | at least 13% | 138 | Compare |
“At least” where either manager has more positions than are read each quarter: a stock both hold below that range is not counted.
The filings behind it
Every quarter above is one 13F holdings report, with any amendment the filer made to it applied in the order it was filed. Where the reporting entity changed, each quarter keeps the filer that actually reported it.
| Quarter | Filer | Book | Amended | Filing |
|---|---|---|---|---|
| Q2 2026 | GAMCO Investors Inc | $11.1bn | 13F-HR | |
| Q1 2026 | GAMCO Investors Inc | $10.2bn | 13F-HR | |
| Q4 2025 | GAMCO Investors Inc | $10.4bn | 13F-HR | |
| Q3 2025 | GAMCO Investors Inc | $10.3bn | 13F-HR | |
| Q2 2025 | GAMCO Investors Inc | $10.1bn | 13F-HR | |
| Q1 2025 | GAMCO Investors Inc | $9.1bn | 13F-HR | |
| Q4 2024 | GAMCO Investors Inc | $9.5bn | 13F-HR | |
| Q3 2024 | GAMCO Investors Inc | $9.8bn | 13F-HR | |
| Q2 2024 | GAMCO Investors Inc | $9.2bn | 13F-HR | |
| Q1 2024 | GAMCO Investors Inc | $9.9bn | 13F-HR | |
| Q4 2023 | GAMCO Investors Inc | $9.4bn | 13F-HR | |
| Q3 2023 | GAMCO Investors Inc | $8.6bn | 13F-HR | |
| Q2 2023 | GAMCO Investors Inc | $9.5bn | 13F-HR | |
| Q1 2023 | GAMCO Investors Inc | $9.3bn | 13F-HR | |
| Q4 2022 | GAMCO Investors Inc | $9.3bn | 13F-HR | |
| Q3 2022 | GAMCO Investors Inc | $8.5bn | 13F-HR | |
| Q2 2022 | GAMCO Investors Inc | $9.1bn | 13F-HR | |
| Q1 2022 | GAMCO Investors Inc | $11.1bn | 13F-HR | |
| Q4 2021 | GAMCO Investors Inc | $11.7bn | 13F-HR | |
| Q3 2021 | GAMCO Investors Inc | $11.3bn | 13F-HR | |
| Q2 2021 | GAMCO Investors Inc | $11.8bn | 13F-HR | |
| Q1 2021 | GAMCO Investors Inc | $11.4bn | 13F-HR | |
| Q4 2020 | GAMCO Investors Inc | $10.7bn | 13F-HR | |
| Q3 2020 | GAMCO Investors Inc | $9.0bn | 13F-HR | |
| Q2 2020 | GAMCO Investors Inc | $8.8bn | 13F-HR | |
| Q1 2020 | GAMCO Investors Inc | $8.5bn | 13F-HR | |
| Q4 2019 | GAMCO Investors Inc | $12.5bn | 13F-HR | |
| Q3 2019 | GAMCO Investors Inc | $12.0bn | 13F-HR | |
| Q2 2019 | GAMCO Investors Inc | $13.2bn | 13F-HR | |
| Q1 2019 | GAMCO Investors Inc | $13.1bn | 13F-HR | |
| Q4 2018 | GAMCO Investors Inc | $11.8bn | 13F-HR | |
| Q3 2018 | GAMCO Investors Inc | $14.8bn | 13F-HR | |
| Q2 2018 | GAMCO Investors Inc | $14.7bn | 13F-HR | |
| Q1 2018 | GAMCO Investors Inc | $14.8bn | 13F-HR | |
| Q4 2017 | GAMCO Investors Inc | $16.0bn | 13F-HR | |
| Q3 2017 | GAMCO Investors Inc | $16.2bn | 13F-HR | |
| Q2 2017 | GAMCO Investors Inc | $15.7bn | 13F-HR | |
| Q1 2017 | GAMCO Investors Inc | $15.8bn | 13F-HR | |
| Q4 2016 | GAMCO Investors Inc | $15.8bn | 13F-HR | |
| Q3 2016 | GAMCO Investors Inc | $15.4bn | 13F-HR | |
| Q2 2016 | GAMCO Investors Inc | $15.1bn | 13F-HR | |
| Q1 2016 | GAMCO Investors Inc | $15.2bn | 13F-HR | |
| Q4 2015 | GAMCO Investors Inc | $15.3bn | 13F-HR | |
| Q3 2015 | GAMCO Investors Inc | $15.2bn | 13F-HR | |
| Q2 2015 | GAMCO Investors Inc | $18.5bn | 13F-HR | |
| Q1 2015 | GAMCO Investors Inc | $19.1bn | 13F-HR | |
| Q4 2014 | GAMCO Investors Inc | $19.2bn | 13F-HR | |
| Q3 2014 | GAMCO Investors Inc | $18.6bn | 13F-HR | |
| Q2 2014 | GAMCO Investors Inc | $19.1bn | 13F-HR | |
| Q1 2014 | GAMCO Investors Inc | $18.5bn | 13F-HR | |
| Q4 2013 | GAMCO Investors Inc | $18.7bn | 13F-HR | |
| Q3 2013 | GAMCO Investors Inc | $17.0bn | 13F-HR | |
| Q2 2013 | GAMCO Investors Inc | $15.9bn | 13F-HR |
Reading this record
A 13F lists US-listed long equity and options at the quarter end, filed up to 45 days later. It shows what was held, not when it was bought or at what price, and nothing short. Where a quarter lists only the largest positions, a name missing from it may still be held below that range; the counts of what was opened and sold always cover the whole filing.
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