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Super Investors FOX RUN MANAGEMENT, L.L.C.
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FOX RUN MANAGEMENT, L.L.C.

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

Portfolio value
$603M
Positions
891
Quarter ended
June 30, 2026
Filed
August 04, 2026

Reported portfolio value by quarter (43 quarters reported)

$648M $39.9M
Q4 15 Q1 18 Q2 20 Q3 22 Q4 24 Q2 26

$129M in Q4 2015 → $603M now. Hover for any quarter.

Holdings

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

Holding % of portfolio Activity Shares Value
SS Select Sector SPDR Tr 0.6% Added 194% 72,800 $3.9M
Burlington Stores Inc 0.4% Added 953% 8,326 $2.64M
IL Idexx Labs Inc 0.4% Added 193% 4,967 $2.61M
Oracle Corp 0.4% Added 239% 17,715 $2.6M
Spx Technologies Inc 0.4% Added 293% 10,044 $2.46M
Globalfoundries Inc 0.4% Trimmed 32% 29,446 $2.43M
Uber Technologies Inc 0.4% New 33,134 $2.39M
Synopsys Inc 0.4% New 5,337 $2.38M
Vistra Corp 0.4% Added 0.9% 14,857 $2.36M
IE Intercontinental Exchange In 0.4% Added 986% 18,380 $2.26M
Pentair PLC 0.4% New 29,273 $2.24M
LE Lauder Estee Cos Inc 0.4% New 27,895 $2.2M
Thermo Fisher Scientific Inc 0.4% New 4,373 $2.19M
Ferguson Enterprises Inc 0.4% New 9,082 $2.16M
Guardant Health Inc 0.4% New 14,194 $2.13M
Amer Sports Inc 0.4% New 62,863 $2.13M
Block Inc 0.4% New 27,980 $2.13M
Fabrinet 0.4% Added 571% 3,779 $2.12M
Zoetis Inc 0.4% New 29,511 $2.12M
ST SS&C Tech Hldgs 0.4% Added 32% 34,095 $2.12M
Centuri Holdings Inc 0.3% Added 554% 69,399 $2.1M
Atmos Energy Corp 0.3% New 12,093 $2.08M
Polaris Inc 0.3% New 30,167 $2.06M
CO Capital One Finl Corp 0.3% Added 796% 10,215 $2.05M
NP Newamsterdam Pharma Company 0.3% New 59,477 $2.02M
KM Kinder Morgan Inc Del 0.3% New 59,807 $1.91M
DI Dycom Inds Inc 0.3% New 3,780 $1.91M
Prologis Inc. 0.3% New 14,052 $1.9M
IB Interactive Brokers Group In 0.3% Added 254% 21,586 $1.88M
ZE Zurn Elkay Water Solns Corp 0.3% New 37,133 $1.88M
JF Jefferies Financial Group In 0.3% New 37,099 $1.85M
Ati Inc 0.3% Added 14% 9,361 $1.85M
First Bancorp Corporation 0.3% New 70,580 $1.84M
OH Onemain Hldgs Inc 0.3% Added 448% 30,145 $1.84M
Medtronic PLC 0.3% Added 365% 23,397 $1.83M
Msci Inc 0.3% Added 28% 3,267 $1.83M
Xpo Inc 0.3% New 8,848 $1.82M
Clear Secure Inc 0.3% New 32,179 $1.79M
Scotts Miracle-gro Co 0.3% New 26,180 $1.78M
CD Compania De Minas Buenaventu 0.3% Added 77% 60,746 $1.78M
ST Sensata Technologies Hldg Pl 0.3% New 37,269 $1.78M
Nlight Inc 0.3% New 24,563 $1.71M
SA Southwest Airls Co 0.3% Added 38% 33,146 $1.7M
Semtech Corp 0.3% New 10,415 $1.69M
Moog Inc 0.3% Added 424% 3,937 $1.67M
Rbc Bearings Inc 0.3% New 2,577 $1.66M
AI American Intl Group Inc 0.3% New 22,227 $1.66M
EL Eli Lilly & Co 0.3% Added 39% 1,367 $1.64M
Natera Inc 0.3% Added 120% 5,952 $1.62M
Evercore Inc 0.3% New 4,730 $1.62M
Toro Co 0.3% New 16,550 $1.61M
BC Brinks Co 0.3% Added 237% 17,015 $1.61M
Tower Semiconductor Ltd 0.3% New 6,157 $1.6M
Vita Coco Co Inc 0.3% New 23,903 $1.58M
Church & Dwight Co Inc 0.3% Added 1.2% 16,058 $1.56M
Waste Connections Inc 0.3% Added 205% 9,323 $1.55M
IP Icon Pub Ltd Co 0.3% New 8,750 $1.52M
CS Cisco Sys Inc 0.3% Added 122% 12,918 $1.52M
Bunge Global Sa 0.3% Added 201% 14,171 $1.51M
Trex Inc 0.3% Added 31% 30,187 $1.51M

Showing top 60 of 891 positions.

Timeline of changes

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

Q2 2026

quarter ended June 30, 2026 · filed August 04, 2026

Company Action Shares changed Value of change % of portfolio
SS Select Sector SPDR Tr Trimmed −137,300 −$7.29M 0.1%
Amkor Technology Inc Trimmed −40,467 −$3.49M 0.2%
NS Nxp Semiconductors N V Trimmed −9,783 −$2.75M —
GH Generac Hldgs Inc Trimmed −9,225 −$2.7M 0.2%
Cummins Inc Exited −5,151 −$2.64M —
SS Select Sector SPDR Tr Added +48,000 +$2.57M 0.6%
Uber Technologies Inc New +33,134 +$2.39M 0.4%
Burlington Stores Inc Added +7,535 +$2.39M 0.4%
Synopsys Inc New +5,337 +$2.38M 0.4%
Technipfmc PLC Exited −34,592 −$2.34M —

Showing the 10 largest of 1374 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 12, 2026

Company Action Shares changed Value of change % of portfolio
SS Select Sector SPDR Tr Added +138,800 +$8.6M 1.6%
SS Select Sector SPDR Tr Trimmed −146,800 −$7.1M 0.2%
SS SPDR S&P 500 ETF Tr Exited −9,807 −$6.69M —
IT Ishares Tr Exited −27,048 −$6.66M —
Citigroup Inc New +24,304 +$2.61M 0.5%
Keysight Technologies Inc Trimmed −9,383 −$2.53M —
Rockwell Automation Inc Exited −6,368 −$2.48M —
SJ Smucker J M Co Added +25,447 +$2.42M 0.5%
GH Generac Hldgs Inc New +12,951 +$2.4M 0.4%
Align Technology Inc Exited −14,966 −$2.34M —

Showing the 10 largest of 1309 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 11, 2026

Company Action Shares changed Value of change % of portfolio
SS SPDR S&P 500 ETF Tr New +9,807 +$6.69M 1.0%
IT Ishares Tr New +27,048 +$6.66M 1.0%
SS Select Sector SPDR Tr Added +91,600 +$5.02M 1.5%
IT Ishares Tr Exited −40,100 −$3.89M —
SS Select Sector SPDR Tr Trimmed −73,700 −$3.3M 0.1%
Blackrock Inc New +2,699 +$2.89M 0.4%
W Wabtec New +12,432 +$2.65M 0.4%
Regeneron Pharmaceuticals Exited −4,413 −$2.48M —
Rockwell Automation Inc New +6,368 +$2.48M 0.4%
Roblox Corp Added +29,982 +$2.43M 0.4%

Showing the 10 largest of 1337 changes.

Q3 2025

quarter ended September 30, 2025 · filed November 12, 2025

Company Action Shares changed Value of change % of portfolio
Ralph Lauren Corp Trimmed −14,180 −$4.45M 0.1%
Mongodb Inc Trimmed −14,013 −$4.35M 0.1%
SS Select Sector SPDR Tr Added +46,100 +$4.12M 1.2%
IT Ishares Tr New +40,100 +$3.89M 0.6%
SS Select Sector SPDR Tr Trimmed −63,300 −$3.41M 0.7%
Astera Labs Inc Trimmed −15,948 −$3.12M 0.1%
Microchip Technology Inc. New +44,617 +$2.87M 0.4%
N Nextracker Inc Trimmed −37,818 −$2.8M 0.1%
SC Sba Communications Corp New New +14,280 +$2.76M 0.4%
IM Iron Mtn Inc Del Exited −25,922 −$2.66M —

Showing the 10 largest of 1292 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 06, 2025

Company Action Shares changed Value of change % of portfolio
Marvell Technology Inc Trimmed −68,863 −$5.33M 0.1%
SS Select Sector SPDR Tr Trimmed −61,400 −$5.21M 0.6%
IT Ishares Tr Exited −52,500 −$5.03M —
Mercadolibre Inc Exited −1,889 −$3.69M —
Ralph Lauren Corp Added +12,280 +$3.37M 0.7%
Celestica Inc Exited −39,016 −$3.07M —
Light & Wonder Inc Exited −34,142 −$2.96M —
Bridgebio Pharma Inc New +63,604 +$2.75M 0.5%
BB Boot Barn Hldgs Inc New +17,808 +$2.71M 0.5%
Oshkosh Corp Exited −28,436 −$2.68M —

Showing the 10 largest of 1316 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 13, 2025

Company Action Shares changed Value of change % of portfolio
SS Select Sector SPDR Tr New +101,600 +$9.49M 1.5%
Marvell Technology Inc Added +73,987 +$4.56M 0.8%
Mercadolibre Inc New +1,889 +$3.69M 0.6%
SS Select Sector SPDR Tr Added +70,700 +$3.52M 1.4%
Pfizer Inc New +118,511 +$3M 0.5%
Light & Wonder Inc New +34,142 +$2.96M 0.5%
Freeport-mcmoran Inc Exited −74,438 −$2.83M —
Dynatrace Inc Added +58,547 +$2.76M 0.5%
Cummins Inc New +8,770 +$2.75M 0.4%
Williams Sonoma Inc New +17,188 +$2.72M 0.4%

Showing the 10 largest of 1295 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 11, 2025

Company Action Shares changed Value of change % of portfolio
SS Select Sector SPDR Tr New +111,700 +$5.4M 1.0%
SS SPDR S&P 500 ETF Tr Exited −7,330 −$4.21M —
IT Ishares Tr Exited −18,677 −$4.13M —
IT Ishares Tr Added +38,100 +$3.55M 0.7%
Freeport-mcmoran Inc New +74,438 +$2.83M 0.5%
Corning Inc New +54,183 +$2.57M 0.5%
DE Devon Energy Corp New New +77,133 +$2.52M 0.5%
IB International Business Machs New +11,196 +$2.46M 0.4%
GM General Mtrs Co Exited −53,994 −$2.42M —
Bill Holdings Inc Trimmed −25,949 −$2.2M 0.1%

Showing the 10 largest of 1229 changes.

Q3 2024

quarter ended September 30, 2024 · filed November 12, 2024

Company Action Shares changed Value of change % of portfolio
SS Select Sector SPDR Tr Exited −53,000 −$4.83M —
SS SPDR S&P 500 ETF Tr New +7,330 +$4.21M 0.9%
IT Ishares Tr New +18,677 +$4.13M 0.9%
SS Select Sector SPDR Tr Exited −82,200 −$3.38M —
Parker-hannifin Corp Trimmed −4,488 −$2.84M —
Leidos Holdings Inc Exited −18,581 −$2.71M —
PH Paypal Hldgs Inc Trimmed −33,429 −$2.61M 0.1%
Hca Healthcare Inc Exited −8,115 −$2.61M —
Constellation Energy Corp Exited −11,733 −$2.35M —
Align Technology Inc Exited −9,460 −$2.28M —

Showing the 10 largest of 1176 changes.

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