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Super Investors MARATHON CAPITAL MANAGEMENT
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MARATHON CAPITAL MANAGEMENT

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$488M
Positions
182
Quarter ended
September 30, 2026
Filed
October 23, 2026

Reported portfolio value by quarter (54 quarters reported)

$494M $109M
Q2 13 Q1 16 Q4 18 Q3 21 Q2 24 Q3 26

$117M in Q2 2013 → $488M now. Hover for any quarter.

Holdings

As reported for the quarter ended September 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
PT Price T Rowe Group Inc 12.4% Trimmed 0.1% 579,975 $60.3M
SS SPDR Series Trust 4.0% Added 1.0% 212,907 $19.5M
Zeta Global Holdings Corp 3.1% Added 99% 476,240 $15M
Amazon Com Inc 2.9% Trimmed 0.2% 56,525 $14.1M
Corning Inc 2.9% Trimmed 2.0% 91,112 $14M
Alphabet Inc 2.9% Trimmed 0.9% 40,971 $14M
Apple Inc 2.8% Trimmed 3.3% 41,257 $13.7M
Zscaler Inc 2.7% Trimmed 0.9% 65,577 $13.1M
Microsoft Corp 2.5% Trimmed 1.1% 23,606 $12.1M
Astrazeneca PLC 2.2% Added 0.9% 65,360 $10.6M
VW Vanguard Whitehall Fds 2.1% Trimmed 1.4% 103,313 $10.4M
Metlife Inc 1.9% Trimmed 1.3% 101,104 $9.52M
Chevron Corporation 1.7% Trimmed 0.8% 41,444 $8.46M
AT Allison Transmission Hldgs I 1.7% Trimmed 0.7% 71,789 $8.13M
Diamondback Energy Inc 1.7% Trimmed 0.0% 44,156 $8.12M
WH Waystar Hldg Corp 1.6% Trimmed 0.5% 313,605 $7.95M
IT Ishares Tr 1.5% Added 58% 71,975 $7.25M
IB International Business Machs 1.4% Added 2.6% 31,968 $7.03M
AI Almonty Inds Inc 1.4% Added 0.3% 523,705 $6.89M
Jpmorgan Chase & Co 1.4% Trimmed 1.8% 20,792 $6.88M
Arcosa Inc 1.3% Trimmed 2.1% 44,226 $6.46M
Deckers Outdoor Corp 1.3% New 82,585 $6.45M
Ceco Environmental Corp 1.3% Trimmed 3.8% 91,815 $6.39M
Johnson & Johnson 1.3% Trimmed 4.4% 24,006 $6.36M
Realty Income Corp 1.2% Trimmed 2.4% 108,910 $5.91M
DD Danaher Corp Del 1.2% Trimmed 2.1% 25,966 $5.75M
TT Tetra Technologies Inc Del 1.1% Trimmed 0.9% 953,497 $5.6M
Zoetis Inc 1.1% Trimmed 5.0% 79,407 $5.55M
BM Barrick Mng Corp 1.1% Added 1.0% 131,764 $5.36M
FN Fidelity Natl Information Sv 1.1% Trimmed 4.7% 158,874 $5.23M
Ani Pharmaceuticals Inc 1.1% Trimmed 0.3% 71,810 $5.22M
Qualcomm Inc 1.1% Added 0.4% 28,187 $5.19M
SA Sprott Asset Management LP 1.0% Trimmed 0.1% 119,955 $4.98M
BH Berkshire Hathaway Inc Del 1.0% Trimmed 0.2% 9,456 $4.71M
WT Willis Towers Watson PLC Ltd 1.0% Trimmed 0.7% 16,305 $4.7M
SG SPDR Gold Tr 0.9% Added 0.4% 10,994 $4.19M
Builders Firstsource Inc 0.8% Trimmed 2.9% 72,152 $4.11M
Healthpeak Properties Inc 0.8% Trimmed 2.8% 202,779 $4.05M
Chubb Limited 0.8% Trimmed 0.4% 11,991 $3.9M
Npk International Inc 0.8% Trimmed 0.8% 341,345 $3.9M
Adma Biologics Inc 0.7% Trimmed 32% 361,308 $3.62M
Merck & Co Inc 0.7% Trimmed 2.7% 22,721 $3.3M
Nvidia Corporation 0.7% Added 22% 13,911 $3.18M
Calix Inc 0.6% Added 6.7% 89,160 $3.06M
CH Copa Holdings Sa 0.6% Trimmed 1.4% 23,148 $3.05M
Symbotic Inc 0.6% Trimmed 1.0% 69,085 $2.91M
NA Novo-nordisk A S 0.6% Trimmed 2.4% 76,284 $2.89M
EL Eli Lilly & Co 0.6% Trimmed 0.0% 2,491 $2.88M
AH Alphatec Hldgs Inc 0.6% Trimmed 0.6% 277,625 $2.87M
Alphabet Inc 0.6% Trimmed 0.4% 8,300 $2.86M
Micron Technology Inc 0.6% Trimmed 2.3% 2,634 $2.81M
Advanced Micro Devices Inc 0.5% Added 0.1% 4,129 $2.53M
TR Targa Res Corp 0.5% Unchanged 8,925 $2.41M
Procter & Gamble Co 0.5% Trimmed 3.3% 15,711 $2.28M
SL Slb Limited 0.4% Added 2.3% 43,789 $2.13M
Enphase Energy Inc 0.4% Trimmed 1.1% 56,528 $1.86M
Maxlinear Inc 0.4% Unchanged 20,000 $1.81M
Abbvie Inc 0.4% Added 0.1% 6,811 $1.78M
SS State Str SPDR S&P 500 ETF T 0.4% Trimmed 3.3% 2,332 $1.78M
Darling Ingredients Inc 0.3% Trimmed 1.3% 27,860 $1.69M

Showing top 60 of 182 positions.

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q3 2026

quarter ended September 30, 2026 · filed October 23, 2026

Company Action Shares changed Value of change % of portfolio
Zeta Global Holdings Corp Added +236,475 +$7.47M 3.1%
Deckers Outdoor Corp New +82,585 +$6.45M 1.3%
IT Ishares Tr Added +26,360 +$2.65M 1.5%
Adma Biologics Inc Trimmed −171,045 −$1.72M 0.7%
Exxonmobil Holdings Corp New +9,276 +$1.51M 0.3%
Exxon Mobil Corp Exited −9,412 −$1.29M —
Axt Inc New +11,395 +$882K 0.2%
Lightpath Technologies Inc New +70,465 +$726K 0.1%
Nvidia Corporation Added +2,496 +$570K 0.7%
Allstate Corp Trimmed −2,346 −$521K 0.1%

Showing the 10 largest of 164 changes.

Q2 2026

quarter ended June 30, 2026 · filed July 22, 2026

Company Action Shares changed Value of change % of portfolio
PT Price T Rowe Group Inc Trimmed −58,200 −$6.62M 13.4%
WH Waystar Hldg Corp New +315,265 +$6.47M 1.3%
Qualcomm Inc Trimmed −32,105 −$5.93M 1.1%
IT Ishares Tr New +45,615 +$4.59M 0.9%
Zoetis Inc Added +47,735 +$3.43M 1.2%
Adobe Inc Exited −13,090 −$3.18M —
Corning Inc Trimmed −12,226 −$3.12M 4.8%
Micron Technology Inc Trimmed −2,230 −$2.57M 0.6%
Ares Capital Corp Trimmed −134,222 −$2.49M 0.1%
Apple Inc Trimmed −6,337 −$1.83M 2.5%

Showing the 10 largest of 163 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 14, 2026

Company Action Shares changed Value of change % of portfolio
Astrazeneca PLC Exited −157,747 −$14.5M —
Astrazeneca PLC New +65,175 +$12.9M 2.9%
Corning Inc Trimmed −80,228 −$10.9M 3.2%
Zscaler Inc New +66,345 +$9.31M 2.1%
Amazon Com Inc Added +25,467 +$5.3M 2.6%
FN Fidelity Natl Information Sv Added +67,014 +$3.14M 1.6%
SS SPDR Series Trust Added +34,031 +$3.12M 4.0%
Diamondback Energy Inc Trimmed −14,727 −$2.91M 2.1%
CH Copa Holdings Sa Trimmed −23,765 −$2.7M 0.7%
Chevron Corporation Trimmed −9,455 −$1.96M 2.3%

Showing the 10 largest of 147 changes.

Q4 2025

quarter ended December 31, 2025 · filed January 29, 2026

Company Action Shares changed Value of change % of portfolio
Zoetis Inc New +35,150 +$4.42M 1.0%
SS SPDR Series Trust Added +38,842 +$3.55M 3.2%
PT Price T Rowe Group Inc Trimmed −31,500 −$3.22M 14.4%
AI Almonty Inds Inc Added +343,280 +$3.02M 1.1%
SL Slb Limited Trimmed −76,021 −$2.92M 0.5%
CH Copa Holdings Sa Trimmed −19,820 −$2.39M 1.3%
NA Novo-nordisk A S Added +25,230 +$1.28M 0.9%
Lockheed Martin Corp Added +2,403 +$1.16M 0.3%
Amplitude Inc New +88,600 +$1.03M 0.2%
SS SPDR S&P 500 ETF Tr Added +1,416 +$966K 0.4%

Showing the 10 largest of 134 changes.

Q3 2025

quarter ended September 30, 2025 · filed November 14, 2025

Company Action Shares changed Value of change % of portfolio
SS SPDR Series Trust Added +84,528 +$7.76M 2.6%
Adobe Inc New +12,457 +$4.39M 1.0%
Symbotic Inc Trimmed −66,655 −$3.59M 0.5%
NA Novo-nordisk A S New +57,475 +$3.19M 0.7%
Adma Biologics Inc Added +182,880 +$2.68M 1.6%
PT Price T Rowe Group Inc Trimmed −23,520 −$2.41M 16.1%
Par Technology Corp Added +53,605 +$2.12M 0.6%
Pfizer Inc Trimmed −82,475 −$2.1M 0.1%
AI Almonty Inds Inc New +250,235 +$1.51M 0.3%
Corning Inc Trimmed −15,893 −$1.3M 3.6%

Showing the 10 largest of 139 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 14, 2025

Company Action Shares changed Value of change % of portfolio
VW Vanguard Whitehall Fds Added +98,684 +$7.91M 2.1%
Builders Firstsource Inc New +57,727 +$6.74M 1.7%
Dow Inc Exited −149,028 −$5.2M —
Lululemon Athletica Inc Exited −17,200 −$4.87M —
Healthpeak Properties Inc New +263,627 +$4.62M 1.2%
Hillman Solutions Corp Trimmed −583,074 −$4.16M 0.2%
PT Price T Rowe Group Inc Trimmed −40,205 −$3.88M 17.4%
BM Barrick Mng Corp New +146,420 +$3.05M 0.8%
BG Barrick Gold Corp Exited −138,896 −$2.7M —
Adma Biologics Inc Added +128,570 +$2.34M 1.3%

Showing the 10 largest of 143 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 15, 2025

Company Action Shares changed Value of change % of portfolio
Danaher Corporation Added +15,400 +$3.16M 1.0%
FE Fomento Economico Mexicano S Exited −36,628 −$3.13M —
Adma Biologics Inc New +155,120 +$3.08M 0.8%
PT Price T Rowe Group Inc Trimmed −31,275 −$2.87M 18.3%
Alphabet Inc Added +17,121 +$2.67M 1.8%
Kenvue Inc Trimmed −101,403 −$2.43M 0.1%
IB International Business Machs Trimmed −8,718 −$2.17M 2.1%
SS SPDR Ser Tr Added +15,370 +$1.41M 0.6%
AT Allison Transmission Hldgs I Trimmed −12,420 −$1.19M 1.9%
Symbotic Inc Added +58,755 +$1.19M 0.6%

Showing the 10 largest of 132 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 14, 2025

Company Action Shares changed Value of change % of portfolio
S Schlumberger Ltd New +126,020 +$4.83M 1.2%
PT Price T Rowe Group Inc Trimmed −41,324 −$4.67M 22.0%
Dow Inc Added +82,870 +$3.33M 1.5%
AT Allison Transmission Hldgs I Trimmed −29,306 −$3.17M 2.4%
Transocean Ltd Trimmed −736,100 −$2.76M 0.2%
Diamondback Energy Inc Added +14,985 +$2.46M 2.3%
ET Evolv Technologies Hldngs In Trimmed −459,100 −$1.81M 0.1%
I Identiv Inc Trimmed −405,975 −$1.49M 0.3%
Expand Energy Corporation New +12,606 +$1.25M 0.3%
Southwestern Energy Co Exited −149,700 −$1.06M —

Showing the 10 largest of 124 changes.

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