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Super Investors Stockbridge Partners LLC
SP

Stockbridge Partners LLC

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

Portfolio value
$4.75B
Positions
17
Quarter ended
June 30, 2026
Filed
August 14, 2026

Reported portfolio value by quarter (53 quarters reported)

$5.17B $1.16B
Q2 13 Q1 16 Q4 18 Q3 21 Q2 24 Q2 26

$1.16B in Q2 2013 → $4.75B 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
TS Taiwan Semiconductor Manufac 20.8% Trimmed 3.7% 2,072,924 $990M
Transdigm Group Inc 12.2% Unchanged 434,281 $578M
Alphabet Inc 9.4% Added 28% 1,252,838 $448M
Amazon Com Inc 8.9% Trimmed 28% 1,776,149 $423M
Deere & Co 7.6% Added 0.4% 567,456 $360M
LM Liberty Media Corp Del 7.2% Added 395% 3,613,069 $344M
VM Vulcan Matls Co 6.6% Trimmed 6.6% 1,065,963 $314M
Nvidia Corporation 5.5% Trimmed 15% 1,295,226 $259M
Waste Connections Inc 4.1% Trimmed 53% 1,161,217 $194M
Visa Inc 4.0% Added 65% 557,138 $191M
AT Allison Transmission Hldgs I 3.6% Added 46% 1,499,984 $169M
Mastercard Incorporated 3.5% Added 55% 319,922 $164M
Woodward Inc 2.4% New 270,673 $115M
Guidewire Software Inc 2.0% Added 457% 759,827 $93.5M
VS Veeva Sys Inc 1.5% New 404,617 $71.8M
MM Martin Marietta Matls Inc 0.5% Added 32% 42,450 $24.5M
Servicetitan Inc 0.3% New 188,565 $13.3M

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

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

Company Action Shares changed Value of change % of portfolio
LM Liberty Media Corp Del Added +2,883,475 +$274M 7.2%
Waste Connections Inc Trimmed −1,289,952 −$215M 4.1%
Kla Corp Exited −133,271 −$196M —
Microsoft Corp Exited −525,737 −$195M —
Amazon Com Inc Trimmed −698,782 −$167M 8.9%
Woodward Inc New +270,673 +$115M 2.4%
Alphabet Inc Added +276,356 +$98.8M 9.4%
Guidewire Software Inc Added +623,392 +$76.7M 2.0%
Visa Inc Added +219,828 +$75.4M 4.0%
VS Veeva Sys Inc New +404,617 +$71.8M 1.5%

Showing the 10 largest of 18 changes.

Q1 2026

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

Company Action Shares changed Value of change % of portfolio
VS Veeva Sys Inc Exited −1,302,898 −$291M —
Servicenow Inc Exited −1,897,705 −$291M —
Nvidia Corporation New +1,532,118 +$267M 6.5%
Guidewire Software Inc Trimmed −1,308,771 −$196M 0.5%
AT Allison Transmission Hldgs I New +1,030,398 +$121M 2.9%
Deere & Co Trimmed −213,262 −$120M 7.7%
Amazon Com Inc Added +499,065 +$104M 12.5%
Mastercard Incorporated New +205,974 +$103M 2.5%
Visa Inc New +337,310 +$102M 2.5%
Microsoft Corp Trimmed −222,837 −$82.5M 4.7%

Showing the 10 largest of 19 changes.

Q4 2025

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

Company Action Shares changed Value of change % of portfolio
Alphabet Inc New +925,406 +$290M 6.4%
HW Hilton Worldwide Hldgs Inc Exited −886,951 −$230M —
Servicenow Inc Added +1,477,910 +$226M 6.4%
Kla Corp Trimmed −157,727 −$192M 4.1%
Transdigm Group Inc Trimmed −90,953 −$121M 12.7%
Amazon Com Inc Trimmed −450,675 −$104M 10.0%
Thermo Fisher Scientific Inc Exited −207,584 −$101M —
Microsoft Corp Trimmed −182,238 −$88.1M 8.0%
Guidewire Software Inc Added +405,850 +$81.6M 6.4%
Waste Connections Inc Added +132,786 +$23.3M 9.1%

Showing the 10 largest of 14 changes.

Q3 2025

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

Company Action Shares changed Value of change % of portfolio
Kla Corp New +310,675 +$335M 6.5%
Thermo Fisher Scientific Inc Trimmed −404,367 −$196M 1.9%
Servicenow Inc Added +206,478 +$190M 7.5%
HW Hilton Worldwide Hldgs Inc Trimmed −420,442 −$109M 4.4%
VS Veeva Sys Inc Trimmed −255,060 −$76M 7.5%
Guidewire Software Inc Trimmed −208,766 −$48M 4.6%
Microsoft Corp Trimmed −83,360 −$43.2M 9.3%
TS Taiwan Semiconductor Mfg Ltd Trimmed −89,581 −$25M 11.5%
Deere & Co Trimmed −38,298 −$17.5M 7.0%
Waste Connections Inc Added +96,753 +$17M 7.6%

Showing the 10 largest of 14 changes.

Q2 2025

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

Company Action Shares changed Value of change % of portfolio
TS Taiwan Semiconductor Mfg Ltd Added +1,276,373 +$289M 9.8%
Guidewire Software Inc Trimmed −502,946 −$118M 5.7%
Amazon Com Inc Trimmed −383,180 −$84.1M 10.7%
Transdigm Group Inc Trimmed −45,700 −$69.5M 15.8%
VS Veeva Sys Inc Added +155,752 +$44.9M 8.8%
HW Hilton Worldwide Hldgs Inc Trimmed −132,996 −$35.4M 6.8%
Deere & Co Trimmed −47,760 −$24.3M 8.3%
Microsoft Corp Trimmed −46,748 −$23.3M 9.9%
Thermo Fisher Scientific Inc Trimmed −35,358 −$14.3M 4.9%
Servicenow Inc Added +12,177 +$12.5M 4.3%

Showing the 10 largest of 12 changes.

Q1 2025

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

Company Action Shares changed Value of change % of portfolio
New York Times Co Exited −4,386,211 −$228M —
VS Veeva Sys Inc Added +752,692 +$174M 7.2%
Guidewire Software Inc Trimmed −927,789 −$174M 7.3%
Servicenow Inc New +201,140 +$160M 3.5%
TS Taiwan Semiconductor Mfg Ltd New +941,661 +$156M 3.5%
Liberty Broadband Corp Exited −1,866,717 −$140M —
Transdigm Group Inc Trimmed −90,034 −$125M 17.7%
Amazon Com Inc Trimmed −449,297 −$85.5M 12.1%
VM Vulcan Matls Co Trimmed −350,987 −$81.9M 7.2%
Microsoft Corp Added +214,190 +$80.4M 8.8%

Showing the 10 largest of 14 changes.

Q4 2024

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

Company Action Shares changed Value of change % of portfolio
Liberty Broadband Corp Trimmed −1,921,125 −$144M 3.0%
VS Veeva Sys Inc New +652,840 +$137M 2.9%
New York Times Co Trimmed −1,936,050 −$101M 4.8%
CC Charter Communications Inc N Exited −272,520 −$88.3M —
Transdigm Group Inc Trimmed −38,053 −$48.2M 18.0%
VM Vulcan Matls Co Added +177,918 +$45.8M 9.5%
Microsoft Corp Added +87,452 +$36.9M 7.6%
Guidewire Software Inc Added +205,382 +$34.6M 9.6%
Procore Technologies Inc Exited −486,794 −$30M —
Waste Connections Inc Added +127,454 +$21.9M 7.2%

Showing the 10 largest of 14 changes.

Q3 2024

quarter ended September 30, 2024 · filed November 14, 2024

Company Action Shares changed Value of change % of portfolio
LW Lamb Weston Hldgs Inc Exited −3,985,409 −$335M —
Guidewire Software Inc Trimmed −1,382,171 −$253M 9.1%
Deere & Co Added +540,874 +$226M 7.4%
Amazon Com Inc Added +786,131 +$146M 12.6%
HW Hilton Worldwide Hldgs Inc Added +600,593 +$138M 7.1%
Microsoft Corp Trimmed −236,414 −$102M 6.6%
CC Charter Communications Inc N Trimmed −258,089 −$83.6M 1.8%
New York Times Co Trimmed −768,065 −$42.8M 7.1%
Thermo Fisher Scientific Inc Trimmed −55,835 −$34.5M 7.2%
VM Vulcan Matls Co Added +137,365 +$34.4M 7.9%

Showing the 10 largest of 12 changes.

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