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Super Investors One Madison Group LLC
OM

One Madison Group LLC

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

Portfolio value
$1.04B
Positions
27
Quarter ended
June 30, 2026
Filed
August 14, 2026

Reported portfolio value by quarter (7 quarters reported)

$1.04B $765M
Q4 24 Q2 25 Q4 25 Q2 26

$873M in Q4 2024 → $1.04B 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
Crane Company 7.6% Trimmed 1.3% 355,000 $79.2M
Xpo Inc 6.9% Added 4.0% 350,100 $71.9M
Amazon Com Inc 6.9% Added 11% 300,000 $71.5M
TI Take-two Interactive Softwar 5.6% Added 9.8% 235,000 $58.7M
JC Johnson Controls Internation 5.6% Added 335% 400,000 $58.4M
Ge Vernova Inc 5.4% Trimmed 20% 48,000 $56.4M
Loar Holdings Inc 5.3% Trimmed 0.7% 690,000 $55.6M
Rbc Bearings Inc 5.0% Added 33% 80,000 $51.5M
Alphabet Inc 4.9% Trimmed 12% 145,000 $51.2M
Woodward Inc 4.9% Added 20% 120,000 $51.1M
GA Ge Aerospace 4.6% Trimmed 3.4% 129,000 $48.2M
HW Hilton Worldwide Hldgs Inc 3.8% Trimmed 2.5% 120,000 $39.7M
DH Dpc Holdings PLC 3.8% New 800,000 $39.2M
FN Ferrari N V 3.8% Added 5.0% 105,000 $39.1M
UP Union Pac Corp 3.4% Added 9.5% 130,000 $35.4M
MM Martin Marietta Matls Inc 3.3% Trimmed 34% 60,000 $34.6M
Api Group Corp 3.1% Unchanged 750,000 $31.8M
HN Heico Corp New 2.7% Added 6.7% 80,000 $28.5M
JH James Hardie Inds PLC 2.5% Added 1211% 1,000,000 $26.2M
IB Interactive Brokers Group In 2.1% Added 14% 249,500 $21.7M
Spotify Technology S A 1.8% Trimmed 7.0% 40,000 $18.4M
SE Space Exploration Techn Corp 1.6% New 100,000 $17.1M
Meta Platforms Inc 1.6% Added 482% 29,100 $16.4M
Cerebras Systems Inc 1.4% New 64,776 $14.3M
Netflix Inc. 1.2% Trimmed 35% 170,000 $12.1M
Sherwin Williams Co 1.0% Trimmed 57% 30,000 $10.3M
OA Oreilly Automotive Inc 0.2% Trimmed 91% 20,000 $1.84M

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 6 quarters.

Q2 2026

quarter ended June 30, 2026 · filed August 14, 2026

Company Action Shares changed Value of change % of portfolio
JC Johnson Controls Internation Added +308,000 +$45M 5.6%
DH Dpc Holdings PLC New +800,000 +$39.2M 3.8%
Nvidia Corporation Exited −160,000 −$27.9M —
JH James Hardie Inds PLC Added +923,700 +$24.2M 2.5%
Ferguson Enterprises Inc Exited −80,000 −$18.7M —
OA Oreilly Automotive Inc Trimmed −200,000 −$18.4M 0.2%
MM Martin Marietta Matls Inc Trimmed −31,000 −$17.9M 3.3%
SE Space Exploration Techn Corp New +100,000 +$17.1M 1.6%
Datadog Inc Exited −140,900 −$16.6M —
Cerebras Systems Inc New +64,776 +$14.3M 1.4%

Showing the 10 largest of 30 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 15, 2026

Company Action Shares changed Value of change % of portfolio
Nvidia Corporation New +160,000 +$27.9M 3.2%
Transdigm Group Inc Exited −19,000 −$25.3M —
Shopify Inc Exited −130,000 −$20.9M —
Blackstone Inc Exited −135,000 −$20.8M —
Microsoft Corp Exited −41,500 −$20.1M —
Ferguson Enterprises Inc New +80,000 +$18.7M 2.2%
MM Martin Marietta Matls Inc Added +26,000 +$15.3M 6.2%
JC Johnson Controls Internation New +92,000 +$12M 1.4%
Sherwin Williams Co Added +27,000 +$8.65M 2.6%
Amazon Com Inc Added +36,000 +$7.5M 6.5%

Showing the 10 largest of 32 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 17, 2026

Company Action Shares changed Value of change % of portfolio
Maplebear Inc Exited −1,180,346 −$43.4M —
MM Martin Marietta Matls Inc Added +61,000 +$38M 4.7%
Snowflake Inc Exited −134,597 −$30.4M —
Netflix Inc Added +233,000 +$21.8M 2.8%
Woodward Inc Added +64,000 +$19.3M 4.1%
Meta Platforms Inc Trimmed −29,000 −$19.1M 0.8%
Rbc Bearings Inc Added +31,877 +$14.3M 2.8%
Datadog Inc Trimmed −70,000 −$9.52M 2.8%
GA Ge Aerospace Trimmed −29,000 −$8.93M 5.0%
Loar Holdings Inc Added +125,000 +$8.5M 5.4%

Showing the 10 largest of 27 changes.

Q3 2025

quarter ended September 30, 2025 · filed November 14, 2025

Company Action Shares changed Value of change % of portfolio
Alphabet Inc New +158,500 +$38.6M 4.2%
UP Union Pac Corp New +100,000 +$23.6M 2.6%
Maplebear Inc Trimmed −567,000 −$20.8M 4.8%
TI Take-two Interactive Softwar Trimmed −80,000 −$20.7M 7.1%
Shopify Inc Trimmed −132,000 −$19.6M 2.4%
Microsoft Corp Trimmed −32,300 −$16.7M 1.7%
GA Ge Aerospace Trimmed −48,000 −$14.4M 5.6%
Woodward Inc New +53,000 +$13.4M 1.5%
HN Heico Corp New Trimmed −40,000 −$12.9M 2.8%
Blackstone Inc Trimmed −75,000 −$12.8M 2.5%

Showing the 10 largest of 31 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 14, 2025

Company Action Shares changed Value of change % of portfolio
Blackstone Inc New +210,000 +$31.4M 3.3%
Datadog Inc Added +212,997 +$28.6M 3.5%
Ge Vernova Inc Trimmed −40,400 −$21.4M 4.7%
OA Oreilly Automotive Inc Added +166,000 +$15M 1.7%
Spotify Technology S A Trimmed −18,000 −$13.8M 4.0%
M Moodys Corp Exited −28,000 −$13M —
Nvidia Corporation Exited −100,000 −$10.8M —
Xpo Inc Added +73,373 +$9.27M 5.5%
Transdigm Group Inc Added +6,000 +$9.12M 4.0%
Lennar Corp Exited −70,000 −$8.03M —

Showing the 10 largest of 30 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 15, 2025

Company Action Shares changed Value of change % of portfolio
Marvell Technology Inc Exited −455,000 −$50.3M —
Alphabet Inc Exited −120,000 −$22.9M —
IB Interactive Brokers Group In Trimmed −90,000 −$14.9M 1.3%
Datadog Inc Trimmed −142,997 −$14.2M 0.5%
Shopify Inc Added +131,674 +$12.6M 3.2%
Spotify Technology S A Trimmed −22,000 −$12.1M 4.9%
Nvidia Corporation New +100,000 +$10.8M 1.4%
M Moodys Corp Trimmed −22,000 −$10.2M 1.7%
Microsoft Corp Added +27,000 +$10.1M 3.8%
TI Take-two Interactive Softwar Added +40,000 +$8.29M 8.3%

Showing the 10 largest of 33 changes.

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