Q3 2026 13F · SEC CIK 1088859

Parthenon LLC

Wealth managerFiled 2026-10-22 for Q3 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $967.3M
Reported positions: 129
Top holdings a year, 3 yrs: +15.4%
Assets under management: $1.2B

Parthenon LLC is a wealth manager that reported 129 positions worth $967.3M in its Q3 2026 13F, filed 2026-10-22. Its largest holdings were Microsoft Corp (MSFT, 12.0%), Berkshire Hathaway Inc Del (BRK-B, 7.0%), Alphabet Inc (GOOGL, 5.3%). A portfolio copying its top holdings returned 15.4% a year over the last 3 years, against 20.4% for the S&P 500.

Parthenon LLC holdings largest 50 of 129 positions.

Weights are shares of the filer's total reported 13F value, compared with Q2 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Parthenon LLC 13F holdings
Stock	% of 13F value	Q2 2026	Shares	Share change	Reported value
MSFTMicrosoft Corp	12.0%	8.8%	227,186	-0.0%	$116.5M
BRK-BBerkshire Hathaway Inc Del	7.0%	7.1%	136,634	-0.1%	$68.0M
GOOGLAlphabet Inc	5.3%	5.6%	149,916	-1.0%	$51.6M
METAMeta Platforms Inc	5.1%	4.0%	67,683	+0.2%	$49.1M
AAPLApple Inc	4.3%	3.8%	125,595	-1.1%	$41.8M
GOOGAlphabet Inc	3.8%	4.0%	109,001	-0.4%	$37.1M
GLWCorning Inc	3.6%	6.1%	228,533	-0.1%	$35.1M
JNJJohnson & Johnson	3.3%	3.2%	119,820	-0.2%	$31.7M
XOMExxonmobil Holdings Corp	2.8%	—	167,390	—	$27.2M
FASTFastenal Co	2.6%	2.6%	517,147	-1.9%	$25.6M
PAYXPaychex Inc	2.5%	2.5%	248,332	+0.1%	$24.5M
WMTWalmart Inc	2.4%	2.7%	224,946	-0.2%	$23.4M
MRKMerck & Co Inc	2.2%	2.0%	148,512	-0.8%	$21.6M
CSCOCisco Sys Inc	2.2%	2.4%	195,182	-0.1%	$21.0M
AXPAmerican Express Co	2.1%	2.3%	66,300	-0.2%	$20.2M
DOVDover Corp	2.0%	2.4%	104,203	-0.0%	$19.5M
PGProcter & Gamble Co	1.9%	1.9%	124,733	-1.3%	$18.1M
BKNGBooking Holdings Inc	1.7%	1.8%	103,400	+8.4%	$16.8M
JPMJpmorgan Chase & Co	1.4%	1.4%	41,437	-1.0%	$13.7M
ICLRIcon Plc	1.4%	1.4%	79,603	+1.2%	$13.5M
CRMSalesforce Inc	1.4%	0.9%	56,905	+0.2%	$13.1M
SCHWCharles Schwab Corp (the)	1.3%	1.3%	132,321	-0.0%	$12.9M
PEPPepsico Inc	1.3%	1.4%	101,065	-0.0%	$12.8M
WATWaters Corp	1.3%	1.1%	28,828	-0.5%	$12.7M
VOOVanguard Index Fds	1.2%	1.1%	16,133	+5.3%	$11.3M
LSTRLandstar Systems Inc	1.2%	1.4%	66,984	-0.2%	$11.3M
BATRKAtlanta Braves Hldgs Inc	1.2%	1.1%	211,315	+0.0%	$11.2M
SYKStryker Corporation	1.1%	1.2%	37,642	+0.4%	$10.4M
CVSCvs Health Corp	1.0%	1.2%	110,966	-1.1%	$9.5M
YETIYeti Hldgs Inc	0.9%	1.1%	213,730	-0.0%	$8.8M
IJRIshares Tr	0.8%	0.9%	56,409	+0.8%	$7.7M
DISDisney Walt Co	0.8%	0.7%	72,057	-0.4%	$7.6M
PNCPnc Finl Svcs Group Inc	0.8%	0.9%	33,424	+0.0%	$7.4M
MDLZMondelez International	0.8%	0.8%	127,423	-5.6%	$7.4M
GEGe Aerospace	0.7%	0.9%	22,067	+0.0%	$6.9M
VWOVanguard Intl Equity Index F	0.7%	0.7%	113,506	+1.0%	$6.7M
HDHome Depot Inc	0.7%	0.8%	22,944	-0.5%	$6.5M
VEAVanguard Ftse Developed Markets Index Fu	0.6%	0.6%	87,455	+1.5%	$6.2M
PMPhilip Morris Intl Inc	0.6%	0.6%	29,470	+0.1%	$5.6M
CHDNChurchill Downs Inc	0.6%	0.7%	72,654	+0.0%	$5.5M
KOCoca Cola Co	0.5%	0.5%	58,179	-0.6%	$5.0M
LLYEli Lilly & Co	0.5%	0.5%	3,913	-0.3%	$4.5M
MDTMedtronic PLC	0.5%	0.5%	52,017	-13.0%	$4.5M
BRK-ABerkshire Hathaway Inc Del	0.5%	0.5%	6	+0.0%	$4.5M
CLARClarus Corp New	0.4%	0.4%	1,241,662	+0.0%	$4.2M
ABBVAbbvie Inc	0.4%	0.4%	14,335	+0.8%	$3.7M
SJMJ.M. Smucker Co.	0.4%	0.4%	30,848	-1.0%	$3.7M
VPLVanguard Intl Equity Index F	0.4%	0.4%	30,937	-0.9%	$3.6M
GEVGe Vernova Inc	0.4%	0.5%	3,686	-1.2%	$3.5M
HSYHershey Co	0.4%	0.4%	22,101	-1.1%	$3.5M

What Parthenon LLC bought and sold in Q3 2026, against Q2 2026.

New positions

Q2 2026's filing was too long to tell new positions apart.

Share counts compared with the Q2 2026 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.

How the holdings did against the S&P 500.

1 year: +13.5% /yr; S&P 500 +20.1%
3 years: +15.4% /yr; S&P 500 +20.4%
5 years: +9.8% /yr; S&P 500 +11.6%

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q3 2026	$967.3M	129
Q2 2026	$962.0M	133
Q1 2026	$874.7M	127
Q4 2025	$926.7M	131
Q3 2025	$902.5M	129
Q2 2025	$874.1M	126
Q1 2025	$813.1M	122
Q4 2024	$826.7M	123
Q3 2024	$837.4M	125
Q2 2024	$787.2M	121
Q1 2024	$788.8M	121
Q4 2023	$723.4M	117

Questions about Parthenon LLC's portfolio

What stocks does Parthenon LLC own?

Parthenon LLC's latest 13F, for Q3 2026 and filed Oct 22, 2026, lists 129 positions worth $967.3M. The largest are Microsoft Corp (MSFT) at 12.0%, Berkshire Hathaway Inc Del (BRK-B) at 7.0%, Alphabet Inc (GOOGL) at 5.3%, Meta Platforms Inc (META) at 5.1% and Apple Inc (AAPL) at 4.3%.

What did Parthenon LLC buy last quarter?

In Q3 2026, Parthenon LLC added Booking Holdings Inc (BKNG) (+8.4% shares) and Vanguard Index Fds (VOO) (+5.3% shares), compared with its Q2 2026 filing.

What did Parthenon LLC sell last quarter?

In Q3 2026, Parthenon LLC cut from its top 50 Exxon Mobil Corp (XOM), Medtronic PLC (MDT) (-13.0% shares) and Mondelez International (MDLZ) (-5.6% shares), compared with its Q2 2026 filing.

How has Parthenon LLC's portfolio performed?

A portfolio copying Parthenon LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +15.4% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +13.5% against +20.1%. Over 5 years: +9.8% a year against +11.6%.

When is Parthenon LLC's next 13F filing due?

13F filings are due 45 days after each quarter ends. Parthenon LLC's filing for the quarter ending Dec 31, 2026 is due by Feb 14, 2027; this page updates the day after it is published.

How much money does Parthenon LLC manage?

Parthenon LLC reported $1.2B of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $967.3M.