Q3 2026 13F · SEC CIK 799003

Mount Vernon Associates Inc /md/

Investment managerFiled 2026-10-26 for Q3 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $150.4M
Reported positions: 57
Top holdings a year, 3 yrs: +19.8%
Average holding period: 12.9 yrs

Mount Vernon Associates Inc /md/ is an investment manager that reported 57 positions worth $150.4M in its Q3 2026 13F, filed 2026-10-26. Its largest holdings were Apple Inc (AAPL, 11.6%), Alphabet Inc (GOOG, 8.2%), Microsoft Corp (MSFT, 7.1%). A portfolio copying its top holdings returned 19.8% a year over the last 3 years, against 20.4% for the S&P 500.

Mount Vernon Associates Inc /md/ holdings largest 50 of 57 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.

Mount Vernon Associates Inc /md/ 13F holdings
Stock	% of 13F value	Q2 2026	Shares	Share change	Reported value
AAPLApple Inc	11.6%	10.6%	52,565	-6.2%	$17.5M
GOOGAlphabet Inc	8.2%	8.6%	36,137	-3.6%	$12.3M
MSFTMicrosoft Corp	7.1%	5.3%	20,741	-4.7%	$10.6M
AMZNAmazon Com Inc	6.5%	6.3%	39,085	-3.6%	$9.7M
METAMeta Platforms Inc	5.8%	4.6%	12,026	-3.2%	$8.7M
COSTCostco Wholesale Corporation	5.3%	5.6%	8,827	-3.8%	$8.0M
JPMJpmorgan Chase & Co	4.8%	4.9%	21,904	-5.1%	$7.2M
INTCIntel Corp	3.6%	4.2%	45,111	-2.2%	$5.4M
AXPAmerican Express Co	3.5%	4.0%	17,412	-3.4%	$5.3M
BACBank of Amer Corp	2.6%	2.8%	73,119	-4.3%	$4.0M
CSCOCisco Sys Inc	2.5%	2.9%	35,604	-5.6%	$3.8M
AFRMAffirm Hldgs Inc	2.4%	2.3%	51,825	+21.7%	$3.6M
GEGE Aerospace	2.2%	2.8%	10,823	-5.0%	$3.4M
SPOTSpotify Technology SA	2.1%	1.9%	6,470	-0.3%	$3.2M
DALDelta Air Lines Inc	2.0%	2.2%	35,600	-3.0%	$3.0M
NFLXNetflix Inc.	1.8%	1.9%	39,950	-0.9%	$2.8M
SCHWCharles Schwab Corp (the)	1.8%	1.7%	27,625	-1.3%	$2.7M
UBERUber Technologies Inc	1.8%	1.9%	39,380	-1.8%	$2.7M
TXNTexas Instrs Inc	1.8%	2.0%	9,580	-6.8%	$2.7M
NVDANvidia Corporation	1.6%	1.2%	10,859	+15.5%	$2.5M
TSLATesla Inc	1.4%	1.5%	5,745	+1.8%	$2.0M
MUMicron Technology Inc	1.3%	1.4%	1,800	+0.0%	$1.9M
TSCOTractor Supply Co	1.3%	1.3%	60,070	-5.5%	$1.9M
PPLPpl Corp	1.2%	1.4%	56,450	-6.2%	$1.9M
BMYBristol-Myers Squibb Co	1.2%	1.1%	29,379	-0.2%	$1.8M
SBUXStarbucks Corp	1.2%	1.4%	19,352	-6.7%	$1.8M
CSXCsx Corp	1.1%	1.2%	37,100	-4.3%	$1.7M
SPCXSpace Exploration Techn Corp	0.9%	—	8,550	—	$1.3M
ABNBAirbnb Inc	0.8%	0.7%	7,895	+0.0%	$1.3M
HONHoneywell Intl Inc	0.8%	0.8%	5,513	-4.3%	$1.2M
TREXTrex Company, Inc.	0.7%	0.9%	24,850	-5.7%	$1.1M
LLYEli Lilly & Co	0.7%	0.7%	920	+0.0%	$1.1M
PFEPfizer Inc	0.7%	0.6%	37,319	-3.6%	$1.1M
IBMInternational Business Machs	0.7%	0.9%	4,745	-7.8%	$1.0M
GEHCGe Healthcare Technologies I	0.6%	0.7%	14,924	-7.7%	$976K
HONAHoneywell Aerospace Inc	0.6%	0.8%	5,513	-4.3%	$854K
VZVerizon Communications Inc	0.5%	0.5%	17,975	-3.0%	$825K
CCitigroup Inc	0.5%	0.6%	6,170	-7.5%	$799K
CATCaterpillar Inc	0.4%	0.6%	800	+0.0%	$649K
XOMExxon Mobil Corp	0.4%	0.4%	3,972	-9.1%	$646K
TAt&t Inc	0.4%	0.4%	26,055	-5.8%	$636K
JNJJohnson & Johnson	0.4%	0.4%	2,161	-0.5%	$572K
CMPSCompass Pathways PLC	0.4%	0.4%	45,500	+19.7%	$566K
AMDAdvanced Micro Devices Inc	0.4%	0.3%	885	+0.0%	$541K
HIGHartford Insurance Group Inc	0.3%	0.4%	4,190	-7.6%	$513K
263534109Dupont De Nemours & Co.	0.2%	0.2%	2,386	-4.3%	$310K
NVRNvr Inc	0.2%	0.2%	50	+0.0%	$308K
PNCPnc Finl Svcs Group Inc	0.2%	0.2%	1,350	-1.5%	$300K
COFCapital One Finl Corp	0.2%	0.2%	1,500	-16.7%	$290K
PMPhilip Morris Intl Inc	0.2%	—	1,300	—	$248K

What Mount Vernon Associates Inc /md/ bought and sold in Q3 2026, against Q2 2026.

New positions

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

Added to

Reduced

COF Capital One Finl Corp-16.7% shares
XOM Exxon Mobil Corp-9.1% shares
IBM International Business Machs-7.8% shares
GEHC Ge Healthcare Technologies I-7.7% shares
HIG Hartford Insurance Group Inc-7.6% shares
C Citigroup Inc-7.5% shares
TXN Texas Instrs Inc-6.8% shares
SBUX Starbucks Corp-6.7% shares

Left the top 50

ENPH Enphase Energy Incwas 0.3%
IVV Ishares Trwas 0.3%

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: +9.6% /yr; S&P 500 +20.1%
3 years: +19.8% /yr; S&P 500 +20.4%
5 years: +8.7% /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	$150.4M	57
Q2 2026	$153.4M	61
Q1 2026	$141.5M	59
Q4 2025	$148.7M	59
Q3 2025	$143.3M	54
Q2 2025	$138.4M	54
Q1 2025	$122.6M	51
Q4 2024	$128.3M	49
Q3 2024	$126.0M	52
Q2 2024	$112.8M	52
Q1 2024	$117.8M	52
Q4 2023	$102.0M	51

Questions about Mount Vernon Associates Inc /md/'s portfolio

What stocks does Mount Vernon Associates Inc /md/ own?

Mount Vernon Associates Inc /md/'s latest 13F, for Q3 2026 and filed Oct 26, 2026, lists 57 positions worth $150.4M. The largest are Apple Inc (AAPL) at 11.6%, Alphabet Inc (GOOG) at 8.2%, Microsoft Corp (MSFT) at 7.1%, Amazon Com Inc (AMZN) at 6.5% and Meta Platforms Inc (META) at 5.8%.

What did Mount Vernon Associates Inc /md/ buy last quarter?

In Q3 2026, Mount Vernon Associates Inc /md/ added Affirm Hldgs Inc (AFRM) (+21.7% shares), Compass Pathways PLC (CMPS) (+19.7% shares) and Nvidia Corporation (NVDA) (+15.5% shares), compared with its Q2 2026 filing.

What did Mount Vernon Associates Inc /md/ sell last quarter?

In Q3 2026, Mount Vernon Associates Inc /md/ cut from its top 50 Enphase Energy Inc (ENPH), cut from its top 50 Ishares Tr (IVV), Capital One Finl Corp (COF) (-16.7% shares), Exxon Mobil Corp (XOM) (-9.1% shares) and International Business Machs (IBM) (-7.8% shares), compared with its Q2 2026 filing.

How has Mount Vernon Associates Inc /md/'s portfolio performed?

A portfolio copying Mount Vernon Associates Inc /md/'s 20 largest 13F holdings each quarter, from the day each filing was public, returned +19.8% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +9.6% against +20.1%. Over 5 years: +8.7% a year against +11.6%.

When is Mount Vernon Associates Inc /md/'s next 13F filing due?

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