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Super Investors MOUNT VERNON ASSOCIATES INC /MD/
MV

MOUNT VERNON ASSOCIATES INC /MD/

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

Portfolio value
$150K
Positions
58
Quarter ended
September 30, 2026
Filed
October 26, 2026

Reported portfolio value by quarter (54 quarters reported)

$153M $150K
Q2 13 Q1 16 Q4 18 Q3 21 Q2 24 Q3 26

$92.7M in Q2 2013 → $150K 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
Apple Inc. 11.6% Trimmed 6.2% 52,565 $17.5K
AC Alphabet Inc. Cl C 8.2% Trimmed 3.6% 36,137 $12.3K
Microsoft Corporation 7.1% Trimmed 4.7% 20,741 $10.6K
Amazon.com Inc. 6.5% Trimmed 3.6% 39,085 $9.74K
Meta Platforms, Inc 5.8% Trimmed 3.2% 12,026 $8.72K
Costco Wholesale Corp 5.3% Trimmed 3.8% 8,827 $8.04K
JM J.p. Morgan Chase & Co Chase & 4.8% Trimmed 5.1% 21,904 $7.25K
Intel Corporation 3.6% Trimmed 2.2% 45,111 $5.42K
American Express Co. 3.5% Trimmed 3.4% 17,412 $5.3K
Bank Of America Corp 2.6% Trimmed 4.3% 73,119 $3.98K
Cisco Systems Inc. 2.5% Trimmed 5.6% 35,604 $3.83K
Affirm Holdings, Inc. 2.4% Added 22% 51,825 $3.59K
GA Ge Aerospace 2.2% Trimmed 5.0% 10,823 $3.38K
Spotify Technology S.a. 2.1% Trimmed 0.3% 6,470 $3.15K
Delta Air Lines, Inc. 2.0% Trimmed 3.0% 35,600 $2.97K
Netflix Inc. 1.8% Trimmed 0.9% 39,950 $2.78K
S( Schwab (charles) Corp 1.8% Trimmed 1.3% 27,625 $2.7K
Uber Technologies, Inc. 1.8% Trimmed 1.8% 39,380 $2.7K
Texas Instruments, Inc. 1.8% Trimmed 6.8% 9,580 $2.68K
Nvidia Corp 1.6% Added 16% 10,859 $2.48K
TM Tesla Motors Inc. 1.4% Added 1.8% 5,745 $2.04K
Micron Technology Inc 1.3% Unchanged 1,800 $1.92K
Tractor Supply Co. 1.2% Trimmed 5.5% 60,070 $1.88K
Ppl Corporation 1.2% Trimmed 6.2% 56,450 $1.86K
Bristol-myers Squibb Co. 1.2% Trimmed 0.2% 29,379 $1.83K
Starbucks Corporation 1.2% Trimmed 6.7% 19,352 $1.82K
Csx Corporation 1.1% Trimmed 4.3% 37,100 $1.73K
SpaceX-style X logo White SpaceX-style X mark on a black square background, scaled to a 0 0 75 75 viewBox. Space Exploration Technologies 0.9% New 8,550 $1.29K
Airbnb, Inc. 0.8% Unchanged 7,895 $1.27K
HI Honeywell Intl Inc 0.8% Trimmed 4.3% 5,513 $1.16K
Trex Company, Inc. 0.7% Trimmed 5.7% 24,850 $1.08K
EL Eli Lilly & Co. 0.7% Unchanged 920 $1.07K
Pfizer Inc. 0.7% Trimmed 3.6% 37,319 $1.06K
I Ibm Corp 0.7% Trimmed 7.8% 4,745 $1.04K
Ge Healthcare Technologies 0.6% Trimmed 7.7% 14,924 $976
HA Honeywell Aerospace Inc. 0.6% Trimmed 4.3% 5,513 $854
Verizon Communications, Inc. 0.5% Trimmed 3.0% 17,975 $825
Citigroup, Inc. 0.5% Trimmed 7.5% 6,170 $799
Caterpillar Inc 0.4% Unchanged 800 $649
EH Exxonmobil Holdings Corporatio 0.4% Trimmed 9.1% 3,972 $646
AT&T Inc. 0.4% Trimmed 5.8% 26,055 $636
Johnson & Johnson 0.4% Trimmed 0.5% 2,161 $572
Compass Pathways PLC 0.4% Added 20% 45,500 $566
AM Advanced Micro Device In 0.4% Unchanged 885 $541
HF Hartford Financial Services 0.3% Trimmed 7.6% 4,190 $513
Dupont De Nemours & Co. 0.2% Trimmed 4.3% 2,386 $310
Nvr,inc. 0.2% Unchanged 50 $308
PF Pnc Financial Services 0.2% Trimmed 1.5% 1,350 $300
Capital One Financial Corp. 0.2% Trimmed 17% 1,500 $290
PM Philip Morris Intl 0.2% Unchanged 1,300 $248
Home Depot Inc. 0.2% Unchanged 830 $236
Wyndham Hotels & Resorts, Inc. 0.1% Trimmed 9.1% 3,130 $225
IF Iren Ltd F 0.1% Unchanged 5,250 $215
Procter & Gamble Co. 0.1% Unchanged 1,465 $213
A- Alphabet Inc - Cl A 0.1% Trimmed 2.5% 585 $201
Annexon Inc 0.0% Unchanged 10,500 $44
Telkonet, Inc. 0.0% Trimmed 4.8% 1,000,500 $36
Y Yogaworks, Inc. 0.0% Unchanged 93,500 —

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 26, 2026

Company Action Shares changed Value of change % of portfolio
Enphase Energy, Inc. Exited −8,280 −$408K —
IC Ishares Core S&P 500 ETF Exited −543 −$407K —
Williams Companies Exited −3,583 −$266K —
International Paper Co. Exited −6,850 −$261K —
Royal Bank Of Canada Exited −1,000 −$207K —
SpaceX-style X logo White SpaceX-style X mark on a black square background, scaled to a 0 0 75 75 viewBox. Space Exploration Technologies New +8,550 +$1.29K 0.9%
Apple Inc. Trimmed −3,494 −$1.16K 11.6%
Affirm Holdings, Inc. Added +9,250 +$640 2.4%
Microsoft Corporation Trimmed −1,019 −$523 7.1%
AC Alphabet Inc. Cl C Trimmed −1,344 −$458 8.2%

Showing the 10 largest of 51 changes.

Q2 2026

quarter ended June 30, 2026 · filed July 24, 2026

Company Action Shares changed Value of change % of portfolio
HI Honeywell Intl Inc Exited −11,529 −$2.61M —
HI Honeywell Intl Inc New +5,763 +$1.29M 0.8%
HA Honeywell Aerospace Inc. New +5,763 +$1.27M 0.8%
AC Alphabet Inc. Cl C Trimmed −2,435 −$860K 8.6%
Dupont De Nemours & Co. Trimmed −6,272 −$851K 0.2%
Apple Inc. Trimmed −2,270 −$657K 10.6%
AM Advanced Micro Device In Trimmed −1,050 −$610K 0.3%
Intel Corporation Trimmed −3,890 −$543K 4.2%
Compass Pathways PLC New +38,000 +$538K 0.4%
Amazon.com Inc. Trimmed −2,144 −$511K 6.3%

Showing the 10 largest of 48 changes.

Q1 2026

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

Company Action Shares changed Value of change % of portfolio
Netflix Inc. Added +35,800 +$3.44M 2.9%
Apple Inc. Trimmed −1,480 −$376K 10.5%
AC Alphabet Inc. Cl C Trimmed −957 −$275K 8.1%
HF Hartford Financial Services Trimmed −1,925 −$260K 0.4%
A- Alphabet Inc - Cl A Exited −675 −$211K —
SA Solstice Advanced Materials In New +2,736 +$208K 0.1%
Csx Corporation Trimmed −4,500 −$185K 1.2%
JM J.p. Morgan Chase & Co Chase & Added +383 +$113K 5.1%
American Express Co. Added +230 +$69.6K 4.0%
Verizon Communications, Inc. Added +1,100 +$55.2K 0.7%

Showing the 10 largest of 36 changes.

Q4 2025

quarter ended December 31, 2025 · filed January 22, 2026

Company Action Shares changed Value of change % of portfolio
Nvidia Corp Added +8,459 +$1.58M 1.3%
Netflix Inc. New +7,000 +$656K 0.4%
Qnity Electronics New +4,381 +$358K 0.2%
AC Alphabet Inc. Cl C Trimmed −925 −$290K 8.6%
Home Depot Inc. New +830 +$286K 0.2%
Apple Inc. Trimmed −880 −$239K 10.9%
A- Alphabet Inc - Cl A New +675 +$211K 0.1%
Airbnb, Inc. Trimmed −745 −$101K 0.8%
Microsoft Corporation Added +193 +$93.3K 7.4%
Enphase Energy, Inc. Trimmed −2,680 −$85.9K 0.2%

Showing the 10 largest of 41 changes.

Q3 2025

quarter ended September 30, 2025 · filed October 24, 2025

Company Action Shares changed Value of change % of portfolio
Csx Corporation Trimmed −45,000 −$1.6M 1.1%
Microsoft Corporation Trimmed −2,062 −$1.07M 8.1%
Meta Platforms, Inc Trimmed −330 −$242K 6.7%
Apple Inc. Trimmed −868 −$221K 10.8%
Citigroup, Inc. Trimmed −1,800 −$183K 0.5%
Amazon.com Inc. Trimmed −810 −$178K 6.5%
AC Alphabet Inc. Cl C Trimmed −687 −$167K 7.1%
Costco Wholesale Corp Trimmed −168 −$156K 6.3%
JM J.p. Morgan Chase & Co Chase & Trimmed −415 −$131K 5.4%
Spotify Technology S.a. Trimmed −165 −$115K 3.5%

Showing the 10 largest of 41 changes.

Q2 2025

quarter ended June 30, 2025 · filed July 22, 2025

Company Action Shares changed Value of change % of portfolio
Affirm Holdings, Inc. Added +29,975 +$2.07M 2.2%
Csx Corporation Trimmed −10,000 −$326K 2.1%
AM Advanced Micro Device In New +1,935 +$275K 0.2%
Micron Technology Inc New +2,100 +$259K 0.2%
Dow Inc. Exited −6,782 −$237K —
Nvidia Corp New +1,500 +$237K 0.2%
Apple Inc. Trimmed −1,080 −$222K 9.1%
First Solar Inc. New +1,300 +$215K 0.2%
Costco Wholesale Corp Trimmed −132 −$131K 7.1%
Amazon.com Inc. Trimmed −580 −$127K 6.8%

Showing the 10 largest of 37 changes.

Q1 2025

quarter ended March 31, 2025 · filed April 23, 2025

Company Action Shares changed Value of change % of portfolio
TM Tesla Motors Inc. Trimmed −1,385 −$359K 1.3%
Williams Companies New +3,583 +$214K 0.2%
PM Philip Morris Intl New +1,300 +$206K 0.2%
Apple Inc. Trimmed −405 −$90K 11.3%
Affirm Holdings, Inc. Added +1,950 +$88.1K 0.5%
American Express Co. Added +270 +$72.6K 4.1%
Amazon.com Inc. Trimmed −330 −$62.8K 6.8%
Costco Wholesale Corp Trimmed −56 −$53K 7.7%
Airbnb, Inc. Added +400 +$47.8K 0.8%
HI Honeywell Intl Inc Added +200 +$42.3K 2.0%

Showing the 10 largest of 34 changes.

Q4 2024

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

Company Action Shares changed Value of change % of portfolio
Tractor Supply Co. Added +53,836 +$2.86M 2.8%
Southwest Airlines Co. Exited −29,400 −$871K —
Csx Corporation Trimmed −25,652 −$828K 2.5%
P Paypal Exited −10,572 −$825K —
Affirm Holdings, Inc. Added +3,600 +$219K 0.6%
Micron Technology Inc Exited −2,100 −$218K —
IC Ishares Core S&P 500 ETF Trimmed −208 −$122K 0.2%
Airbnb, Inc. Trimmed −690 −$90.7K 0.8%
Apple Inc. Trimmed −320 −$80.1K 12.3%
Amazon.com Inc. Trimmed −348 −$76.4K 7.5%

Showing the 10 largest of 29 changes.

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