Asset manager, long-only 13F filer
GAMCO Investors
US long stock positions, not assets under management
Form 13F-HR, filed 12 August 2026
GAMCO Investors has stopped filing, or filed late: its most recent 13F in our EDGAR ingest was filed 12 August 2026, covering the quarter ended 30 June 2026 — 1 reporting quarter behind the newest filing among managers we track. Everything below is that last filing, not a current portfolio.
How has GAMCO Investors's portfolio moved against the S&P 500?
GAMCO Investors's latest 13F filing covers the quarter ended 30 June 2026 and was filed 12 August 2026 (43 days after quarter end): 938 disclosed US-listed positions — 11.1B USD in long stock. 41 new buys, 34 adds, 77 trims and 110 exits against the prior quarter. Holdings are up to 45 days old by the time they clear EDGAR.
Since Sept 2025GAMCO Investors +8%S&P 500 from Dec 2025 +9%
The line rebuilds GAMCO Investors's disclosed 13F holdings at each filing and holds them to the next, tracked against the S&P 500 where daily price history overlaps. Long US equity only — an illustrative read, not an audited return.
Since Sept 2024GAMCO Investors +14%S&P 500 from Dec 2025 +9%
The line rebuilds GAMCO Investors's disclosed 13F holdings at each filing and holds them to the next, tracked against the S&P 500 where daily price history overlaps. Long US equity only — an illustrative read, not an audited return.
- Long stock value
- 11.1B USD
- Positions
- 938
- Top holding
- MSGS, 2.1%
- Top sector
- Industrials 32%
- New buys, Q2 2026
- 41
- Exits, Q2 2026
- 110
Values as reported, as of Q2 2026
Top holdings — quarter ended 30 June 2026
938 US-listed positions were disclosed for the quarter ended 30 June 2026; the 15 largest by reported value are below.
Source: SEC EDGAR Form 13F-HR, as filed.
| Position | Value | Weight | Shares | Last quarter |
|---|---|---|---|---|
| MSGSMADISON SQUARE GARDEN SPORTS | 236.7M USD | 2.1% | 589.1K | Held |
| CRCRANE CO | 218.4M USD | 2.0% | 979.0K | Held |
| MLIMUELLER INDUSTRIES INC | 189.6M USD | 1.7% | 1.5M | Held |
| GATXGATX CORP | 186.9M USD | 1.7% | 1.1M | Held |
| WTSWATTS WATER TECHNOLOGIES-A | 156.2M USD | 1.4% | 399.0K | Held |
| BNYBANK OF NEW YORK MELLON CORP | 141.3M USD | 1.3% | 976.9K | Held |
| HRIHERC HOLDINGS INC | 140.0M USD | 1.3% | 976.7K | Held |
| SPHRSPHERE ENTERTAINMENT CO | 132.5M USD | 1.2% | 765.9K | Held |
| AMEAMETEK INC | 131.7M USD | 1.2% | 544.4K | Held |
| AXPAMERICAN EXPRESS CO | 131.6M USD | 1.2% | 389.0K | Held |
| MODMODINE MANUFACTURING CO | 130.8M USD | 1.2% | 490.0K | Held |
| BATRAATLANTA BRAVES HLDS A IN-A | 120.8M USD | 1.1% | 2.1M | Held |
| MYEMYERS INDUSTRIES INC | 119.1M USD | 1.1% | 3.4M | Held |
| TXTTEXTRON INC | 117.3M USD | 1.1% | 1.3M | Held |
| RHPRYMAN HOSPITALITY PROPERTIES | 114.6M USD | 1.0% | 891.4K | Held |
Quarterly changes — quarter ended 30 June 2026
262 changes vs the prior quarter's filing, as of 30 June 2026: 41 new, 34 added, 77 trimmed and 110 sold out.
What changed against the previous quarter's filing: new positions first, then adds, trims and exits, each sorted by position size. Showing the 20 largest per change type — 262 changes were disclosed in total.
New buys 41Adds 34Trims 77Exits 110
| Position | Change | Shares moved | Value after |
|---|---|---|---|
| HONHONEYWELL INTERNATIONAL INC | New buy | +113.2K | 25.3M USD |
| HONEYWELL AEROSPACE INC | New buy | +113.2K | 25.0M USD |
| MUMICRON TECHNOLOGY INC | New buy | +8.1K | 9.4M USD |
| OCEANAGOLD CORP | New buy | +250.8K | 6.3M USD |
| HLTHILTON WORLDWIDE HOLDINGS IN | New buy | +19.0K | 6.3M USD |
| AVOMISSION PRODUCE INC | New buy | +463.5K | 5.5M USD |
| DDDUPONT DE NEMOURS INC | New buy | +39.3K | 5.3M USD |
| MCFTMASTERCRAFT BOAT HOLDINGS IN | New buy | +110.1K | 2.8M USD |
| FDXFFEDEX FREIGHT HOLDING CO | New buy | +18.0K | 2.7M USD |
| SNDKSANDISK CORP | New buy | +1.1K | 2.6M USD |
| VERSIGENT PLC | New buy | +42.0K | 1.8M USD |
| OGNORGANON & CO | New buy | +86.9K | 1.2M USD |
| APGEAPOGEE THERAPEUTICS INC | New buy | +8.5K | 1.1M USD |
| NNNEXTNAV INC | New buy | +60.0K | 1.1M USD |
| FSMFORTUNA MINING CORP | New buy | +100.7K | 851K USD |
| CWTCALIFORNIA WATER SERVICE GRP | New buy | +15.0K | 732K USD |
| MGEEMGE ENERGY INC | New buy | +7.8K | 636K USD |
| RAMPLIVERAMP HOLDINGS INC | New buy | +16.3K | 612K USD |
| ESPRESPERION THERAPEUTICS INC | New buy | +172.5K | 545K USD |
| GBTGGLOBAL BUSINESS TRAVEL GROUP | New buy | +56.0K | 525K USD |
| RCIROGERS COMMUNICATIONS INC-B | Added | +482.7K | 33.8M USD |
| VICIVICI PROPERTIES INC | Added | +937.8K | 26.2M USD |
| TMHCTAYLOR MORRISON HOME CORP | Added | +281.5K | 21.1M USD |
| NXSTNEXSTAR MEDIA GROUP INC | Added | +44.4K | 20.8M USD |
| SATSECHOSTAR CORP-A | Added | +55.6K | 20.6M USD |
| OCFCOCEANFIRST FINANCIAL CORP | Added | +704.4K | 16.9M USD |
| TREXTREX COMPANY INC | Added | +45.4K | 9.6M USD |
| AMDADVANCED MICRO DEVICES | Added | +12.4K | 8.8M USD |
| ISRGINTUITIVE SURGICAL INC | Added | +3.2K | 6.0M USD |
| SCHWSCHWAB (CHARLES) CORP | Added | +30.5K | 5.7M USD |
| SPOTSPOTIFY TECHNOLOGY SA | Added | +3.8K | 5.5M USD |
| LRCXLAM RESEARCH CORP | Added | +4.7K | 3.4M USD |
| PHPARKER HANNIFIN CORP | Added | +802 | 2.6M USD |
| APTVAPTIV PLC | Added | +20.2K | 2.0M USD |
| IWFISHARES RUSSELL 1000 GROWTH | Added | +10.5K | 1.7M USD |
| ORLAORLA MINING LTD | Added | +32.3K | 1.5M USD |
| CONCONCENTRA GROUP HOLDINGS PAR | Added | +11.9K | 1.2M USD |
| CCRNCROSS COUNTRY HEALTHCARE INC | Added | +56.5K | 1.1M USD |
| ESABESAB CORP | Added | +4.9K | 1.0M USD |
| AUGOAURA MINERALS INC | Added | +11.3K | 986K USD |
| WBDWARNER BROS DISCOVERY INC | Trimmed | −706.3K | 34.5M USD |
| AMZNAMAZON.COM INC | Trimmed | −61.4K | 28.0M USD |
| SPYSPDR S&P 500 ETF | Trimmed | −15.6K | 13.3M USD |
| AMATAPPLIED MATERIALS INC | Trimmed | −5.5K | 11.4M USD |
| QQQINVESCO QQQ TRUST SERIES 1 | Trimmed | −4.5K | 7.2M USD |
| MCOMOODY'S CORP | Trimmed | −4.3K | 5.5M USD |
| CMCSACOMCAST CORP-CLASS A | Trimmed | −185.0K | 5.0M USD |
| COSTCOSTCO WHOLESALE CORP | Trimmed | −1.7K | 4.8M USD |
| IVVISHRS CORE S&P 500 | Trimmed | −63.1K | 4.4M USD |
| TROWT ROWE PRICE GROUP INC | Trimmed | −15.6K | 3.4M USD |
| BSXBOSTON SCIENTIFIC CORP | Trimmed | −90.6K | 2.8M USD |
| LBRDKLIBERTY BROAD C | Trimmed | −32.8K | 2.6M USD |
| FITBFIFTH THIRD BANCORP | Trimmed | −130.2K | 2.4M USD |
| FNVFRANCO-NEVADA CORP | Trimmed | −6.4K | 2.2M USD |
| PGCPEAPACK GLADSTONE FINL CORP | Trimmed | −18.5K | 2.1M USD |
| EQREQUITY RESIDENTIAL | Trimmed | −9.6K | 1.7M USD |
| VSATVIASAT INC | Trimmed | −20.0K | 1.7M USD |
| COLBCOLUMBIA BANKING SYSTEM INC | Trimmed | −19.2K | 1.7M USD |
| PARPAR TECHNOLOGY CORP/DEL | Trimmed | −31.2K | 1.5M USD |
| FBNCFIRST BANCORP/NC | Trimmed | −10.9K | 1.4M USD |
| HONHONEYWELL INTERNATIONAL INC | Sold out | −192.0K | was 43.4M USD |
| GDENGOLDEN ENTERTAINMENT INC | Sold out | −1.1M | was 28.9M USD |
| MASIMASIMO CORP | Sold out | −92.0K | was 16.4M USD |
| FFICFLUSHING FINANCIAL CORP | Sold out | −844.5K | was 13.0M USD |
| CVGWCALAVO GROWERS INC | Sold out | −479.0K | was 12.4M USD |
| VBVANGUARD SML-CAP ETF | Sold out | −33.3K | was 8.7M USD |
| VFHVANGUARD FINANCIALS ETF | Sold out | −50.5K | was 6.1M USD |
| DDDUPONT DE NEMOURS INC | Sold out | −122.5K | was 5.6M USD |
| HSTHOST HOTELS & RESORTS INC | Sold out | −251.7K | was 4.8M USD |
| VWOVANGUARD FTSE EMERGING MARKE | Sold out | −73.9K | was 4.0M USD |
| ALAIR LEASE CORP | Sold out | −59.1K | was 3.8M USD |
| SEESEALED AIR CORP | Sold out | −90.4K | was 3.8M USD |
| MPXMARINE PRODUCTS CORP | Sold out | −508.6K | was 3.7M USD |
| REZISHARS RES AND MULTI REALES | Sold out | −42.5K | was 3.5M USD |
| INTUINTUIT INC | Sold out | −7.6K | was 3.3M USD |
| VOVANGUARD MID-CAP ETF | Sold out | −10.9K | was 3.1M USD |
| MDYGSS SPDR S&P 400 MC GR ETF | Sold out | −31.3K | was 3.0M USD |
| TPHTRI POINTE HOMES INC | Sold out | −49.4K | was 2.3M USD |
| VONGVANGUARD RUSSELL 1000 GROWTH | Sold out | −18.3K | was 2.0M USD |
| STKLSUNOPTA INC | Sold out | −302.0K | was 2.0M USD |
Rows sharing a company name are separate securities of the same issuer — different share classes or option positions, as filed.
Sector allocation
Industrials carries the largest share of disclosed value, at 32%.
Weights are by reported value of the quarter-end holdings; sectors from the reference list, unclassified where none matched.
| Sector | Weight | Holdings |
|---|---|---|
| Industrials | 32% | ABM, ACA, ACCO, AIR, ALLE, AME, AOS, AP, ASTE, ATI, ATKR, ATRO, AZZ, B, BA, BCO, BWXT, CARR, CASS, CAT, CCRN, CMI, CR, CSX, CTAS, CW, CWST, CXT, DAL, DAR, DCI, DCO, DE, DSGR, DY, EML, EMR, ENOV, EPAC, ESAB, ETN, FBIN, FDX, FELE, FISV, FLR, FLS, FSS, FSTR, FTAI, GATX, GBX, GE, GENC, GGG, GHM, GRC, GTLS, GVA, GWW, GXO, HEI, HLIO, HON, HRI, HTZ, HWM, HXL, HY, IEP, IEX, IMXI, INSW, IR, ISSC, ITT, ITW, JBT, JCI, KMT, LECO, LHX, LMT, LNN, MATW, MGRC, MIDD, MIR, MLI, MMM, MSM, MTW, MWA, NDSN, NOC, NPK, NPO, NSSC, NVGS, OSK, PBI, PCAR, PH, PKOH, PRG, PRIM, PWR, RBA, REZI, RGR, ROK, ROL, ROP, RRX, RSG, RTX, SNA, SNX, SXI, TEX, TG, TITN, TKR, TNC, TRN, TTC, TWI, TWIN, TXT, UHAL, URI, VLTO, VMI, WCN, WEX, WM, WNC, WTS, WTTR, WWD, XYL |
| Consumer Cyclical | 19% | AAP, AIN, ALSN, ALV, AMCX, AMZN, AN, APTV, ARKO, AXL, AZO, BATRA, BATRK, BBGI, BBWI, BC, BLBD, BSET, BWA, BYD, CAKE, CARS, CBRL, CCK, CCO, CHDN, CLAR, CMT, CNK, CPHC, CPRI, CPRT, CVCO, CVGI, CZR, DAN, DHI, DIS, DLB, ETD, EVC, F, FLL, FLWS, FOX, FOXA, FWONA, FWONK, GEF, GM, GNTX, GPC, GT, GTN, GTX, HAS, HD, HLT, IMAX, INSE, JAKK, JOUT, KBH, KTB, LCUT, LE, LEE, LEN, LKQ, LOW, LVS, LYV, LZB, M, MANU, MAR, MAT, MBC, MCD, MCFT, MCS, MELI, MGM, MNRO, MOD, MOV, MSGE, MYE, NATH, NFLX, NWS, NWSA, NXST, OMC, ORLY, PACK, PAG, PHIN, PLOW, PVH, RACE, RDI, RDIB, RUSHA, RUSHB, SBGI, SBH, SBUX, SCVL, SHAK, SIRI, SKY, SLGN, SMP, SON, SPB, SPWH, SRI, SSP, STRT, THO, THRM, TJX, TMHC, TOL, TSCO, TSLA, TSQ, TV, UNF, VSCO, WGO, WH, WWW, WYNN |
| Financial Services | 9% | AB, ABCB, ACT, AIG, ALL, ALRS, AMG, AMP, APO, AUB, AXP, BAC, BEN, BLK, BNY, BPOP, BRK.A, BRK.B, BUSE, BX, C, CB, CBAN, CCBG, CFFN, CME, CNS, COF, COLB, EBC, EGBN, EQH, FBK, FBNC, FBP, FHI, FHN, FITB, FNB, GAB, GCV, GDL, GDV, GF, GGT, GGZ, GLV, GRX, GS, GUT, HBAN, HBNC, HIG, HOPE, HTBI, HTH, IBKR, JHG, JPM, KEY, KKR, LION, MA, MBIN, MCO, MET, MFIN, MMC, MS, MTB, NDAQ, NIQ, NTRS, OCFC, PB, PGC, PJT, PNC, PNFP, PYPL, RGA, RNST, SAMG, SBCF, SCHW, SFBS, SFST, SPFI, SPGI, SSB, SSSS, STC, STT, SWZ, TFC, TIPT, TOWN, TRMK, TROW, TSBK, V, VCTR, VIRT, VOYA, WBS, WFC, WHG, WRB, WTFC |
| Technology | 8% | AAPL, ADBE, AFRM, ALNT, ALOT, AMAT, AMBA, AMD, ANET, APH, ASML, ATEN, AVGO, AYI, BELFA, BMI, CDNS, COMM, CRM, CRWD, CRWV, CSCO, CTS, DAKT, DELL, DGII, EA, ENR, ENTG, EVH, EVTC, FLEX, FTNT, GBTG, GLW, GOOG, GOOGL, HPE, HPQ, HUBB, IAC, IBM, IIIV, INTC, ITRI, JBL, KD, KE, KEYS, LFUS, LGL, LRCX, MKSI, MLAB, MPTI, MRVL, MSFT, MTCH, MU, NABL, NATL, NN, NOW, NVDA, NVT, NXPI, ON, OPRA, ORCL, PANW, PAR, PAYO, PKE, PLTR, PSN, RAMP, ROG, SATS, SHOP, SLAB, SNDK, SNOW, SNPS, SONY, SPOT, SSYS, SWKS, TACT, TEL, TME, TSM, TTWO, TXN, TYL, UBER, VSAT, VYX, XRX, YEXT |
| Other / unclassified | 8% | AEBI, AMBP, AMCR, AMLP, AMRZ, AMTM, AOUT, AUGO, BLCO, BRSL, BRW, BTSGU, CGTX, CNH, CON, DVY, ECG, EEM, EFA, EQX, EXE, FBTC, FDXF, FSUN, GABF, GBHI, GCAD, GDX, GENI, GENVR, GGRW, GGTL, GLD, GLIBK, GOLS, GPGI, GRAL, HTZWW, IAU, IEFA, IJH, INGM, INVX, IOO, ITA, IVV, IVW, IWD, IWF, IWM, JPST, KDVD, KRE, MCHPP, MDY, MRP, OPLN, ORLA, PRMB, PSKY, Q, QQQ, RAL, RHLD, RSP, SDY, SGOV, SII, SOLS, SOMN, SPHR, SPY, STRZ, STUB, TSAT, TT, UCB, VIG, VSNT, VTI, XLF, XLK, XLU, XLV, YSS |
| Communication Services | 5% | AMT, ATEX, ATNI, CHTR, CMCSA, GLIBA, GOGO, LBRDA, LBRDK, LBTYA, LBTYK, LILA, LILAK, META, MGNI, MSGS, RCI, SHEN, T, TDS, TIGO, TKO, TMUS, USM, VEON, VOD, VZ, WBD, WMG |
| Basic Materials | 5% | AEM, AGI, APD, APOG, ASH, AU, AVD, AXTA, CCJ, CTVA, DD, ECL, EGO, EMN, ESI, FCX, FMC, FNV, FSM, FUL, GFF, GFI, HUN, HWKN, IAG, IFF, KALU, KGC, KNF, KOP, KWR, LIN, MATV, MDU, MTRN, MTUS, MTX, NEM, NEU, ODC, OLN, OR, PAAS, RGLD, ROCK, RPM, SHW, SMG, SXT, TGEN, TREX, USAS, VMC, WDFC, WLK, WPM, WRN |
| Consumer Defensive | 3% | ACI, ADM, AVO, BG, BRBR, BUD, CAG, CASY, CHD, CL, COST, CPB, DEO, DNUT, EL, EPC, FIZZ, FLO, FMX, GHC, GIS, HAIN, HSY, IMKTA, INGR, JBSS, JJSF, KDP, KHC, KMB, KO, LMNR, LW, LWAY, MDLZ, PEP, PG, PM, POST, SAM, SJM, SMPL, STZ, TAP, TR, UG, UL, UTI, VLGEA, WMT |
| Utilities | 3% | AES, AQN, ARIS, AVA, AWK, BKH, CEG, CMS, CPK, CTRI, CWT, ES, EVRG, EXC, FE, GEV, HE, IDA, LNT, MGEE, NEE, NEP, NGG, NI, NRG, NWE, NWN, OGS, ORA, OTTR, PNM, POR, RGCO, SJW, SR, SWX, UGI, VST, WTRG, YORW |
| Healthcare | 3% | A, ABBV, ABT, AMGN, APGE, AVNS, BAX, BDX, BHC, BIO, BMRN, BMY, BSX, CDXC, CDXS, CHE, CI, CNMD, COO, CPRX, CVS, DHR, DXCM, EHC, ELMD, ENSG, ESPR, GEHC, GEN, GKOS, GMED, GRFS, HCA, HSIC, ICUI, ISRG, JNJ, LFCR, LLY, LNSR, MRK, NEO, NEOG, OFIX, OGN, OPCH, OPK, PFE, PNTG, PRGO, QDEL, REGN, SEM, SOLV, STAA, STE, STIM, SYK, TECH, TEVA, TMO, UHS, UNH, VTRS, WAT, WEAV, XRAY, ZBH, ZTS |
| Energy | 2% | APA, BP, CHRD, CNX, COP, CVX, DVN, EGY, ENB, EOG, EPD, ET, FANG, FTI, HAL, KLXE, KMI, MPC, NFG, NOV, OII, OKE, OXY, PSX, PTEN, RES, SHEL, SLB, SOC, SOI, TDW, TRP, VLO, VVV, WHD, XOM |
| Real Estate | 2% | AHR, AMH, BRX, BXMT, CBRE, CPT, CTRE, DBRG, ELS, EQR, FBRT, GMRE, GYRO, HHH, INN, IVT, JOE, KRG, LAMR, MAA, NSA, O, OUT, PINE, PK, PLD, REG, REXR, RHP, RWT, SILA, SPG, SRG, STAG, STRW, SUI, TPL, TRC, UMH, VICI, WELL |
GAMCO Investors: frequently asked questions
What is GAMCO Investors's biggest holding?
As of the quarter ended 30 June 2026, the largest disclosed position was MSGS (MADISON SQUARE GARDEN SPORTS), about 2.1% of the disclosed US-listed portfolio by reported value.
What did Mario Gabelli's GAMCO Investors buy in Q2 2026?
41 new positions were disclosed for the quarter ended 30 June 2026; the largest were HON, HONEYWELL AEROSPACE INC, MU. Adds and trims are listed in the quarterly-changes table on this page.
How concentrated is the portfolio?
Broadly diversified. The top five positions are 9% of disclosed value and the top ten are 15%.
When is GAMCO Investors's next 13F due?
13F filings for the quarter ended 30 September 2026 are due by 16 November 2026 — managers have 45 days after each calendar quarter ends. Whether GAMCO Investors files is up to the manager; we show whatever EDGAR receives.
Does this show the whole portfolio?
No. Form 13F covers US-listed long equity and some options only — no short bets, bonds, cash, private businesses, non-US holdings or timing inside the quarter. Amended filings replace originals; this page always shows the latest canonical version.
Read the form itself on SEC EDGAR or see our plain-words guide to 13F filings — GAMCO Investors may have already changed these positions since 30 June 2026.
References
- SEC EDGAR Form 13F-HR, quarterly, up to 45 days delayed. Filings are public records. Ticker mapping via SEC public files and OpenFIGI.
- Finazon prior-day close, indicative (IEX-derived, not the official close), some closes dollar-rounded at the source