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Super Investors PARTHENON LLC
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PARTHENON LLC

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

Portfolio value
$967M
Positions
129
Quarter ended
September 30, 2026
Filed
October 22, 2026

Reported portfolio value by quarter (54 quarters reported)

$967M $298M
Q2 13 Q1 16 Q4 18 Q3 21 Q2 24 Q3 26

$298M in Q2 2013 → $967M 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
Microsoft Corp 12.0% Trimmed 0.0% 227,186 $117M
BH Berkshire Hathaway Inc Del 7.0% Trimmed 0.1% 136,634 $68M
Alphabet Inc 5.3% Trimmed 1.0% 149,916 $51.6M
Meta Platforms Inc 5.1% Added 0.2% 67,683 $49.1M
Apple Inc 4.3% Trimmed 1.1% 125,595 $41.8M
Alphabet Inc 3.8% Trimmed 0.4% 109,001 $37.1M
Corning Inc 3.6% Trimmed 0.1% 228,533 $35.1M
Johnson & Johnson 3.3% Trimmed 0.2% 119,820 $31.7M
Exxonmobil Holdings Corp 2.8% New 167,390 $27.2M
Fastenal Co 2.6% Trimmed 1.9% 517,147 $25.6M
Paychex Inc 2.5% Added 0.1% 248,332 $24.5M
Walmart Inc 2.4% Trimmed 0.2% 224,946 $23.4M
Merck & Co Inc 2.2% Trimmed 0.8% 148,512 $21.6M
CS Cisco Sys Inc 2.2% Trimmed 0.1% 195,182 $21M
American Express Co 2.1% Trimmed 0.2% 66,300 $20.2M
Dover Corp 2.0% Trimmed 0.0% 104,203 $19.5M
Procter & Gamble Co 1.9% Trimmed 1.3% 124,733 $18.1M
Booking Holdings Inc 1.7% Added 8.4% 103,400 $16.8M
Jpmorgan Chase & Co 1.4% Trimmed 1.0% 41,437 $13.7M
IP Icon Pub Ltd Co 1.4% Added 1.2% 79,603 $13.5M
Salesforce Inc 1.4% Added 0.2% 56,905 $13.1M
CS Charles Schwab Corp (the) 1.3% Trimmed 0.0% 132,321 $12.9M
Pepsico Inc 1.3% Trimmed 0.0% 101,065 $12.8M
Waters Corp 1.3% Trimmed 0.5% 28,828 $12.7M
VI Vanguard Index Fds 1.2% Added 5.3% 16,133 $11.3M
LS Landstar Sys Inc 1.2% Trimmed 0.2% 66,984 $11.3M
AB Atlanta Braves Hldgs Inc 1.2% Unchanged 211,315 $11.2M
Stryker Corporation 1.1% Added 0.4% 37,642 $10.4M
Cvs Health Corp 1.0% Trimmed 1.1% 110,966 $9.51M
YH Yeti Hldgs Inc 0.9% Trimmed 0.0% 213,730 $8.77M
IT Ishares Tr 0.8% Added 0.8% 56,409 $7.67M
DW Disney Walt Co 0.8% Trimmed 0.4% 72,057 $7.56M
PF Pnc Finl Svcs Group Inc 0.8% Unchanged 33,424 $7.43M
MI Mondelez Intl Inc 0.8% Trimmed 5.6% 127,423 $7.37M
GA Ge Aerospace 0.7% Unchanged 22,067 $6.89M
VI Vanguard Intl Equity Index F 0.7% Added 1.0% 113,506 $6.73M
Home Depot Inc 0.7% Trimmed 0.5% 22,944 $6.53M
VT Vanguard Tax-managed Fds 0.6% Added 1.5% 87,455 $6.18M
PM Philip Morris Intl Inc 0.6% Added 0.1% 29,470 $5.62M
Churchill Downs Inc 0.6% Unchanged 72,654 $5.5M
Coca Cola Co 0.5% Trimmed 0.6% 58,179 $5.01M
EL Eli Lilly & Co 0.5% Trimmed 0.3% 3,913 $4.53M
Medtronic PLC 0.5% Trimmed 13% 52,017 $4.49M
BH Berkshire Hathaway Inc Del 0.5% Unchanged 6 $4.48M
CN Clarus Corp New 0.4% Unchanged 1,241,662 $4.21M
Abbvie Inc 0.4% Added 0.8% 14,335 $3.75M
SJ Smucker J M Co 0.4% Trimmed 1.0% 30,848 $3.67M
VI Vanguard Intl Equity Index F 0.4% Trimmed 0.9% 30,937 $3.58M
Ge Vernova Inc 0.4% Trimmed 1.2% 3,686 $3.5M
Hershey Co 0.4% Trimmed 1.1% 22,101 $3.48M
M Mcdonalds Corp 0.3% Unchanged 12,788 $2.95M
Altria Group Inc 0.3% Unchanged 43,227 $2.91M
Brown Forman Corp 0.3% Unchanged 105,035 $2.75M
Chevron Corporation 0.2% Added 0.7% 11,620 $2.37M
Colgate Palmolive Co 0.2% Unchanged 27,486 $2.35M
Abbott Laboratories 0.2% Trimmed 0.2% 21,336 $2.11M
VI Vanguard Index Fds 0.2% Trimmed 1.8% 5,237 $1.96M
IT Ishares Tr 0.2% Trimmed 2.0% 2,507 $1.92M
VI Vanguard Intl Equity Index F 0.2% Trimmed 1.8% 21,856 $1.9M
TP Turning Pt Brands Inc 0.2% Unchanged 31,470 $1.85M

Showing top 60 of 129 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 22, 2026

Company Action Shares changed Value of change % of portfolio
Exxonmobil Holdings Corp New +167,390 +$27.2M 2.8%
Exxon Mobil Corp Exited −171,640 −$23.5M —
Booking Holdings Inc Added +8,000 +$1.3M 1.7%
Cellebrite Di Ltd New +74,334 +$837K 0.1%
TH Thryv Hldgs Inc Exited −184,717 −$728K —
Medtronic PLC Trimmed −7,786 −$672K 0.5%
VI Vanguard Index Fds Added +814 +$571K 1.2%
Alphabet Inc Trimmed −1,572 −$541K 5.3%
Fastenal Co Trimmed −10,125 −$501K 2.6%
Apple Inc Trimmed −1,425 −$475K 4.3%

Showing the 10 largest of 81 changes.

Q2 2026

quarter ended June 30, 2026 · filed July 23, 2026

Company Action Shares changed Value of change % of portfolio
Booking Holdings Inc Added +91,603 +$16.3M 1.8%
Alphabet Inc Trimmed −5,595 −$2M 5.6%
Alphabet Inc Trimmed −3,365 −$1.19M 4.0%
Procter & Gamble Co Trimmed −6,387 −$937K 1.9%
IT Ishares Tr New +7,700 +$829K 0.1%
BH Berkshire Hathaway Inc Del Trimmed −1,570 −$786K 7.1%
Fastenal Co Trimmed −15,800 −$759K 2.6%
RE Richardson Electrs Ltd Trimmed −36,000 −$684K 0.2%
AB Atlanta Braves Hldgs Inc Trimmed −12,350 −$641K 1.1%
IT Ishares Tr Exited −6,174 −$573K —

Showing the 10 largest of 84 changes.

Q1 2026

quarter ended March 31, 2026 · filed April 28, 2026

Company Action Shares changed Value of change % of portfolio
Nvidia Corporation Trimmed −12,450 −$2.17M 0.1%
Booking Holdings Inc Added +330 +$1.39M 1.8%
Alphabet Inc Trimmed −4,495 −$1.29M 3.7%
Alphabet Inc Trimmed −2,030 −$584K 5.2%
Meta Platforms Inc Trimmed −897 −$513K 4.4%
TP Turning Pt Brands Inc Trimmed −5,300 −$460K 0.3%
Altria Group Inc Trimmed −6,561 −$433K 0.3%
Apple Inc Trimmed −1,634 −$415K 3.7%
American Express Co Trimmed −1,285 −$389K 2.3%
CN Clarus Corp New Added +141,375 +$385K 0.4%

Showing the 10 largest of 67 changes.

Q4 2025

quarter ended December 31, 2025 · filed January 23, 2026

Company Action Shares changed Value of change % of portfolio
Salesforce Inc New +57,805 +$15.3M 1.7%
Alphabet Inc Trimmed −10,035 −$3.15M 4.0%
Microsoft Corp Trimmed −4,987 −$2.41M 11.9%
AB Atlanta Braves Hldgs Inc Added +53,321 +$2.1M 1.0%
UB Us Bancorp Del Trimmed −25,195 −$1.34M —
MI Mondelez Intl Inc Trimmed −23,225 −$1.25M 0.8%
Medtronic PLC Trimmed −10,331 −$992K 0.6%
CN Clarus Corp New Added +285,124 +$955K 0.4%
Apple Inc Trimmed −2,614 −$711K 3.8%
Meta Platforms Inc Trimmed −935 −$617K 4.9%

Showing the 10 largest of 76 changes.

Q3 2025

quarter ended September 30, 2025 · filed October 31, 2025

Company Action Shares changed Value of change % of portfolio
Microsoft Corp Trimmed −10,118 −$5.24M 13.3%
Icon PLC Added +17,815 +$3.12M 1.5%
Alphabet Inc Trimmed −10,855 −$2.64M 3.4%
BH Berkshire Hathaway Inc Del Trimmed −4,085 −$2.05M 7.7%
TP Turning Pt Brands Inc Trimmed −18,000 −$1.78M 0.3%
Meta Platforms Inc Trimmed −2,134 −$1.57M 5.7%
Alphabet Inc Trimmed −6,180 −$1.5M 4.3%
Medtronic PLC Trimmed −15,268 −$1.45M 0.8%
Abbvie Inc Trimmed −5,731 −$1.33M 0.4%
Pfizer Inc Trimmed −44,244 −$1.13M 0.1%

Showing the 10 largest of 77 changes.

Q2 2025

quarter ended June 30, 2025 · filed July 29, 2025

Company Action Shares changed Value of change % of portfolio
Fastenal Co Added +270,485 +$11.4M 2.6%
Icon PLC New +61,970 +$9.01M 1.0%
AB Atlanta Braves Hldgs Inc Added +71,855 +$3.36M 0.8%
Microsoft Corp Trimmed −4,258 −$2.12M 13.8%
Paychex Inc Trimmed −5,015 −$729K 4.2%
Cvs Health Corp Trimmed −8,614 −$594K 1.1%
Kenvue Inc Trimmed −24,400 −$511K 0.2%
Dupont De Nemours Inc Exited −6,809 −$508K —
Scotts Miracle-gro Co Trimmed −6,015 −$397K 0.2%
Exxon Mobil Corp Trimmed −3,555 −$383K 2.3%

Showing the 10 largest of 77 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 02, 2025

Company Action Shares changed Value of change % of portfolio
BH Berkshire Hathaway Inc Del Trimmed −3,987 −$2.12M 9.3%
Meta Platforms Inc Trimmed −1,900 −$1.1M 5.1%
CN Clarus Corp New Added +263,260 +$987K 0.2%
Jpmorgan Chase & Co. Trimmed −3,000 −$736K 1.3%
Paychex Inc Trimmed −3,355 −$518K 4.8%
TH Thryv Hldgs Inc Added +29,000 +$371K 0.2%
AL Abbott Labs Trimmed −2,000 −$265K 0.5%
Dow Inc Exited −6,506 −$261K —
EL Eli Lilly & Co Trimmed −310 −$256K 0.5%
Walmart Inc Trimmed −2,625 −$230K 2.5%

Showing the 10 largest of 59 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 03, 2025

Company Action Shares changed Value of change % of portfolio
Argan Inc Exited −21,657 −$2.2M —
Microsoft Corp Trimmed −4,479 −$1.89M 12.6%
Apple Inc Added +5,936 +$1.49M 4.0%
TH Thryv Hldgs Inc New +96,673 +$1.43M 0.2%
BH Berkshire Hathaway Inc Del Trimmed −2,534 −$1.15M 8.0%
Meta Platforms Inc Trimmed −1,280 −$749K 5.2%
CN Clarus Corp New Trimmed −121,732 −$549K —
PA Procter And Gamble Co Trimmed −2,591 −$434K 3.0%
Dover Corp Trimmed −2,030 −$381K 2.4%
Corning Inc Trimmed −6,825 −$324K 1.4%

Showing the 10 largest of 84 changes.

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