AltaRock Partners

Rick Gresh

$4.2B Portfolio Value
8 Stocks
+3.37% YTD Return
Aug 17, 2026 Last Updated
Portfolio Value Over Time

Current Holdings for AltaRock Partners

Stock Click to search
Shares Value % of Portfolio Change Est. Return
AMZN|Amazon.com Inc
5.7M $1.4B
32.21%
TRIM -24.3% +56.39%
TDG|Transdigm Group Inc
875.8K $1.2B
27.51%
TRIM -3.7%
MSFT|Microsoft Corp
2.3M $870.8M
20.54%
ADD +25.0% +47.47%
MA|Mastercard Inc-class A
764.5K $392.7M
9.26%
ADD +46.2%
V|Visa Inc-class A Shrs
836.5K $287.0M
6.77%
ADD +67.7%
MCO|Moodys Corp
302.6K $137.1M
3.23%
TRIM -64.9%
GOOGL|Alphabet Inc-cl A
42.0K $15.0M
0.35%
TRIM -3.2% +313.85%
HLT|Hilton Worldwide
15.2K $5.0M
0.12%
TRIM -0.9% +31.66%

Trading Activity for AltaRock Partners

Stock Click to search
Action Change Shares After Value Est. Return
2026-Q2
AMZN|Amazon.com Inc
SELL -24.29% 5.7M $1.4B +60.5%
TDG|Transdigm Group Inc
SELL -3.68% 875.8K $1.2B
MSFT|Microsoft Corp
BUY +25.00% 2.3M $871M +22.4%
MA|Mastercard Inc-class A
BUY +46.22% 764.5K $393M +18.9%
MCO|Moodys Corp
SELL -64.89% 302.6K $137M
V|Visa Inc-class A Shrs
BUY +67.74% 836.5K $287M +17.7%
GOOGL|Alphabet Inc-cl A
SELL -3.22% 42.0K $15M +364.3%
HLT|Hilton Worldwide
SELL -0.91% 15.2K $5M +33.6%
2026-Q1
AMZN|Amazon.com Inc
BUY +3.46% 7.6M $1.6B +20.3%
TDG|Transdigm Group Inc
SELL -6.21% 909.2K $1.1B
MSFT|Microsoft Corp
SELL -10.32% 1.9M $691M +29.9%
MCO|Moodys Corp
BUY +5.84% 862.0K $376M +9.9%
MA|Mastercard Inc-class A
SELL -3.51% 522.8K $261M
V|Visa Inc-class A Shrs
SELL -3.48% 498.7K $151M
HLT|Hilton Worldwide
SELL -97.17% 15.3K $5M +21.5%
GOOGL|Alphabet Inc-cl A
SELL -74.38% 43.4K $12M +299.9%
2025-Q4
AMZN|Amazon.com Inc
SELL -3.22% 7.3M $1.7B +47.3%
MSFT|Microsoft Corp
SELL -18.95% 2.1M $1.0B +61.4%
TDG|Transdigm Group Inc
SELL -0.72% 969.4K $1.3B
MCO|Moodys Corp
SELL -14.15% 814.5K $416M
MA|Mastercard Inc-class A
SELL -7.23% 541.8K $309M
V|Visa Inc-class A Shrs
SELL -3.16% 516.7K $181M
GOOGL|Alphabet Inc-cl A
SELL -50.81% 169.4K $53M +265.7%
FICO|Fair Isaac Inc
SELL EXIT +33.8%
2025-Q3
AMZN|Amazon.com Inc
BUY +20.43% 7.6M $1.7B +12.7%
TDG|Transdigm Group Inc
SELL -0.36% 976.4K $1.3B
MSFT|Microsoft Corp
SELL -0.36% 2.6M $1.3B +63.3%
MCO|Moodys Corp
SELL -0.37% 948.7K $452M
MA|Mastercard Inc-class A
SELL -0.37% 584.1K $332M
V|Visa Inc-class A Shrs
SELL -0.35% 533.5K $182M
GOOGL|Alphabet Inc-cl A
SELL -67.06% 344.4K $84M +158.6%
HLT|Hilton Worldwide
SELL -0.36% 542.6K $141M +9.8%
FICO|Fair Isaac Inc
SELL -0.45% 667 $998186 +17.1%
2025-Q2
AMZN|Amazon.com Inc
BUY +20.63% 6.3M $1.4B +26.2%
GOOGL|Alphabet Inc-cl A
SELL -69.74% 1.0M $184M +110.5%
MCO|Moodys Corp
BUY +0.14% 952.3K $478M +8.0%
V|Visa Inc-class A Shrs
SELL -37.04% 535.4K $190M
HLT|Hilton Worldwide
BUY +98.79% 544.6K $145M +32.0%
2025-Q1
TDG|Transdigm Group Inc
SELL -2.06% 980.0K $1.4B
AMZN|Amazon.com Inc
SELL -1.44% 5.2M $990M +64.0%
MSFT|Microsoft Corp
BUY +36.32% 2.6M $968M +23.3%
GOOGL|Alphabet Inc-cl A
SELL -0.76% 3.5M $534M +137.7%
V|Visa Inc-class A Shrs
SELL -2.80% 850.4K $298M
HLT|Hilton Worldwide
BUY +199.97% 274.0K $62M +31.3%
CHTR|Charter Communications Inc-a
SELL EXIT
2024-Q4
TDG|Transdigm Group Inc
SELL -4.55% 1.0M $1.3B
AMZN|Amazon.com Inc
SELL -2.30% 5.3M $1.2B +51.1%
MSFT|Microsoft Corp
SELL -2.23% 1.9M $797M +46.3%
GOOGL|Alphabet Inc-cl A
BUY +4.41% 3.5M $659M +98.8%
MCO|Moodys Corp
SELL -10.85% 950.9K $450M
MA|Mastercard Inc-class A
SELL -5.45% 586.3K $309M
V|Visa Inc-class A Shrs
SELL -21.77% 874.9K $277M
FICO|Fair Isaac Inc
SELL -98.07% 670 $1M +59.7%
HLT|Hilton Worldwide
BUY NEW 91.3K $23M +31.2%
2024-Q3
TDG|Transdigm Group Inc
SELL -2.33% 1.0M $1.5B
AMZN|Amazon.com Inc
BUY +30.82% 5.4M $1.0B +40.4%
GOOGL|Alphabet Inc-cl A
SELL -16.70% 3.3M $553M +114.8%
MCO|Moodys Corp
SELL -1.88% 1.1M $506M
V|Visa Inc-class A Shrs
SELL -37.11% 1.1M $307M
MA|Mastercard Inc-class A
BUY +132.19% 620.0K $306M +27.6%
2024-Q2
TDG|Transdigm Group Inc
SELL -7.19% 1.1M $1.4B
MSFT|Microsoft Corp
BUY +10.30% 1.9M $865M +19.7%
AMZN|Amazon.com Inc
SELL -1.78% 4.1M $798M +48.4%
GOOGL|Alphabet Inc-cl A
SELL -6.60% 4.0M $729M +125.3%
MCO|Moodys Corp
BUY +35.86% 1.1M $458M +27.3%
CHTR|Charter Communications Inc-a
SELL -98.81% 6.0K $2M
FICO|Fair Isaac Inc
BUY NEW 34.7K $52M -11.2%
2024-Q1
TDG|Transdigm Group Inc
SELL -6.56% 1.2M $1.4B
AMZN|Amazon.com Inc
SELL -5.19% 4.2M $758M +37.8%
MSFT|Microsoft Corp
SELL -11.88% 1.8M $738M +44.7%
GOOGL|Alphabet Inc-cl A
SELL -11.83% 4.3M $647M +86.9%
V|Visa Inc-class A Shrs
SELL -2.67% 1.8M $496M
MCO|Moodys Corp
SELL -1.30% 800.1K $314M
CHTR|Charter Communications Inc-a
SELL -12.01% 504.9K $147M
MA|Mastercard Inc-class A
SELL -0.73% 267.0K $129M
2023-Q4
TDG|Transdigm Group Inc
SELL -5.53% 1.2M $1.3B
MSFT|Microsoft Corp
SELL -9.98% 2.0M $749M +31.2%
GOOGL|Alphabet Inc Cap Stk Cl A
SELL -7.59% 4.9M $679M +77.2%
AMZN|Amazon Com Inc
SELL -3.60% 4.4M $674M +15.7%
V|Visa Inc Com Cl A
SELL -12.07% 1.8M $476M
MCO|Moodys Corp
BUY +135.35% 810.6K $317M +45.1%
CHTR|Charter Communications Inc New Cl A
BUY +15.28% 573.8K $223M -63.5%
MA|Mastercard Incorporated Cl A
SELL -4.09% 269.0K $115M
2023-Q3
TDG|Transdigm Group Inc
SELL -3.49% 1.3M $1.1B
MSFT|Microsoft Corp
SELL -2.66% 2.2M $698M +17.1%
GOOGL|Alphabet Inc Cap Stk Cl A
SELL -8.32% 5.3M $688M +70.2%
AMZN|Amazon Com Inc
SELL -9.92% 4.6M $585M +8.3%
V|Visa Inc Com Cl A
BUY +4.88% 2.1M $478M +58.2%
CHTR|Charter Communications Inc New Cl A
BUY +24.59% 497.7K $219M -64.7%
MA|Mastercard Incorporated Cl A
SELL -4.77% 280.5K $111M
MCO|Moodys Corp
BUY +31.70% 344.4K $109M +49.9%
2023-Q2
TDG|Transdigm Group Inc
SELL -1.85% 1.4M $1.2B
MSFT|Microsoft Corp
SELL -2.57% 2.3M $774M +11.2%
GOOGL|Alphabet Inc Cap Stk Cl A
SELL -8.69% 5.7M $687M +55.0%
AMZN|Amazon Com Inc
SELL -12.93% 5.1M $666M -8.4%
V|Visa Inc Com Cl A
BUY +20.21% 2.0M $471M +66.2%
2023-Q1
TDG|Transdigm Group Inc
SELL -1.89% 1.4M $1.0B
MSFT|Microsoft Corp
SELL -8.91% 2.3M $672M -9.7%
GOOGL|Alphabet Inc Cap Stk Cl A
SELL -2.30% 6.3M $652M +24.1%
AMZN|Amazon Com Inc
BUY +3.91% 5.9M $606M +163.6%
V|Visa Inc Com Cl A
SELL -1.55% 1.6M $372M
CHTR|Charter Communications Inc New Cl A
BUY +19.43% 399.5K $143M -60.5%
MA|Mastercard Incorporated Cl A
SELL -2.16% 294.5K $107M
2022-Q4
TDG|Transdigm Group Inc
SELL -6.17% 1.4M $888M
GOOGL|Alphabet Inc Cap Stk Cl A
SELL -8.18% 6.4M $567M +25.9%
MSFT|Microsoft Corp
SELL -9.17% 2.6M $614M -14.0%
AMZN|Amazon Com Inc
BUY +71.35% 5.6M $474M +172.2%
V|Visa Inc Com Cl A
SELL -3.46% 1.7M $348M
CHTR|Charter Communications Inc New Cl A
SELL -3.17% 334.5K $113M
MA|Mastercard Incorporated Cl A
SELL -8.27% 301.0K $105M
MCO|Moodys Corp
BUY +3.53% 261.5K $73M +82.9%
2022-Q3
TDG|Transdigm Group
BUY +3.00% 1.5M $788M +97.6%
GOOGL|Alphabet Inc - Cl A
BUY +3.56% 7.0M $670M +204.8%
MSFT|Microsoft Corp
BUY +3.17% 2.8M $656M +92.1%
AMZN|Amazon
BUY +7.49% 3.3M $372M +102.1%
V|Visa Inc Cl A
BUY +10.57% 1.7M $308M +84.4%
CHTR|Charter Communications
SELL -40.71% 345.4K $105M
MA|Mastercard Inc Cl A
BUY +32.08% 328.2K $93M +78.3%
MCO|Moodys Corp
BUY +104.86% 252.6K $61M +75.2%
2022-Q2
GOOGL|Alphabet Inc - Cl A
BUY +0.90% 338.1K $737M -85.3%
TDG|Transdigm Group
BUY +2.63% 1.5M $783M +97.7%
MSFT|Microsoft Corp
BUY +3.67% 2.7M $702M +86.9%
AMZN|Amazon
BUY +20.41% 3.1M $325M +120.0%
CHTR|Charter Communications
SELL -9.05% 582.6K $273M
V|Visa Inc Cl A
BUY +4.83% 1.6M $309M +82.4%
MA|Mastercard Inc Cl A
SELL -1.11% 248.4K $78M
META|Meta
SELL EXIT -29.4%
2022-Q1
GOOGL|Alphabet Inc - Cl A
BUY +16.21% 335.1K $932M -87.4%
TDG|Transdigm Group
BUY +5.20% 1.4M $926M +83.7%
CHTR|Charter Communications
SELL -52.53% 640.5K $349M
MSFT|Microsoft Corp
BUY +53.20% 2.6M $812M +68.1%
AMZN|Amazon
BUY NEW 127.2K $415M -91.7%
META|Meta
SELL -79.58% 108.0K $24M -19.4%
2021-Q4
CHTR|Charter Communications
BUY +13.43% 1.3M $880M -78.4%
TDG|Transdigm Group Inc
BUY +1.88% 1.4M $860M +88.2%
GOOGL|Alphabet Inc - Cl A
BUY +0.87% 288.4K $835M -88.3%
META|Facebook Inc
SELL -72.67% 529.2K $178M +21.1%
V|Visa Inc Cl A
BUY NEW 1.5M $324M +77.9%
MA|Mastercard Inc Cl A
BUY +42.55% 251.2K $90M +70.5%
2021-Q3
CHTR|Charter Communications
SELL -1.23% 1.2M $866M
TDG|Transdigm Group Inc
BUY +5.57% 1.3M $828M +90.1%
GOOGL|Alphabet Inc - Cl A
SELL -10.64% 285.9K $764M +105.0%
META|Facebook Inc
SELL -13.38% 1.9M $657M +30.6%
MSFT|Microsoft Corp
BUY +108.93% 1.7M $485M +74.3%
MCO|Moodys Corp
SELL -46.07% 123.3K $44M
2021-Q2
CHTR|Charter Communications
BUY +16.70% 1.2M $869M -78.3%
TDG|Transdigm Group Inc
BUY +31.87% 1.3M $813M +92.9%
META|Facebook Inc
BUY +2.64% 2.2M $777M +79.1%
MSFT|Microsoft Corp
BUY NEW 823.3K $223M +99.7%
2021-Q1
META|Facebook Inc
BUY +27.21% 2.2M $641M +113.2%
CHTR|Charter Communications
BUY +15.36% 1.0M $637M -76.2%
TDG|Transdigm Group Inc
SELL -7.11% 952.6K $560M
2020-Q4
CHTR|Charter Communications
SELL -18.32% 894.7K $592M
TDG|Transdigm Group Inc
SELL -16.28% 1.0M $635M
GOOGL|Alphabet Inc - Cl A
SELL -11.35% 319.9K $561M +30.2%
META|Facebook Inc
BUY NEW 1.7M $468M +107.3%
MCO|Moodys Corp
SELL -65.61% 228.7K $66M
MA|Mastercard Inc Cl A
SELL -54.45% 176.2K $63M
V|Visa Inc Cl A
SELL -0.02% 8.5K $2M
2020-Q3
CHTR|Charter Communications
SELL -4.84% 1.1M $684M
TDG|Transdigm Group Inc
BUY +2.74% 1.2M $582M +145.7%
GOOGL|Alphabet Inc - Cl A
BUY +0.18% 360.9K $529M -77.5%
MCO|Moodys Corp
SELL -9.60% 664.9K $193M
MA|Mastercard Inc Cl A
SELL -6.07% 386.9K $131M
2020-Q2
CHTR|Charter Communications
BUY +5.07% 1.2M $587M -70.9%
TDG|Transdigm Group Inc
BUY +18.04% 1.2M $527M +227.6%
GOOGL|Alphabet Inc - Cl A
BUY +23.82% 360.2K $511M -75.2%
MCO|Moodys Corp
SELL -50.50% 735.5K $202M
MA|Mastercard Inc Cl A
BUY +13.81% 411.9K $122M +109.0%
V|Visa Inc Cl A
SELL -95.92% 8.5K $2M
2020-Q1
CHTR|Charter Communications
BUY +1.29% 1.1M $478M -70.6%
GOOGL|Alphabet Inc - Cl A
BUY +26.50% 290.9K $338M -76.0%
TDG|Transdigm Group Inc
BUY +72.68% 1.0M $323M +99.3%
MCO|Moodys Corp
BUY +41.46% 1.5M $314M +101.2%
MA|Mastercard Inc Cl A
SELL -8.82% 361.9K $87M
V|Visa Inc Cl A
SELL -17.10% 208.5K $34M
ORLY|O'reilly Auto Parts
SELL EXIT +45.8%
2019-Q4
GOOGL|Alphabet Inc - Cl A
BUY NEW 230.0K $308M -73.7%
2019-Q3
CHTR|Charter Communications
BUY +13.35% 1.1M $446M -63.5%
TDG|Transdigm Group Inc
SELL -3.47% 584.9K $305M
MCO|Moodys Corp
SELL -7.08% 1.1M $215M
ORLY|O'reilly Auto Parts
SELL -69.58% 93.9K $37M +43.6%
V|Visa Inc Cl A
SELL -10.97% 251.5K $43M
2019-Q2
CHTR|Charter Communications
BUY +10.97% 954.2K $377M -60.6%
TDG|Transdigm Group Inc
SELL -5.69% 605.9K $293M
2019-Q1
No position changes reported in this filing.
2018-Q4
CHTR|Charter Communications
BUY +12.16% 859.9K $245M -53.3%
BKNG|Booking Holdings Inc
SELL EXIT -4.8%
TDG|Transdigm Group Inc
BUY +20.22% 642.5K $218M +244.6%
MCO|Moodys Corp
BUY +16.89% 1.1M $158M +237.8%
ORLY|O'reilly Auto Parts
SELL -1.56% 308.7K $106M +27.3%
MA|Mastercard Inc Cl A
SELL -0.34% 396.9K $75M
2018-Q3
CHTR|Charter Communications
BUY +11.68% 766.6K $250M -51.3%
BKNG|Booking Holdings Inc
BUY +16.04% 120.1K $238M -89.6%
ORLY|O'reilly Auto Parts
SELL -5.84% 313.6K $109M +20.8%
2018-Q2
BKNG|Booking Holdings Inc
BUY +1.27% 103.5K $210M -90.4%
CHTR|Charter Communications
BUY +16.43% 686.4K $201M -48.4%
ORLY|O'reilly Auto Parts
BUY NEW 333.1K $91M -67.3%
WAB|Wabtec
SELL EXIT
2018-Q1
BKNG|Booking Holdings Inc
BUY NEW 102.2K $213M -89.4%
CHTR|Charter Communications
BUY +34.56% 589.5K $183M -58.1%
TDG|Transdigm Group Inc
SELL -7.78% 534.4K $164M
PCLN|Priceline Group Inc
SELL EXIT
WAB|Wabtec
SELL -2.91% 666.4K $54M

Closed Positions for AltaRock Partners

Stock Click to search
Held Period Cost Basis Sale Proceeds Realized Gain Return CAGR
FICO|Fair Isaac Inc
2024-Q2 → 2025-Q4 (1.5y) $45.1M $71.9M $+26.7M +59.2% +36.5%
META|Meta
2020-Q4 → 2022-Q2 (1.5y) $614.8M $690.6M $+75.8M +12.3% +8.1%
ORLY|O'reilly Auto Parts
2018-Q2 → 2020-Q1 (1.7y) $89.6M $127.7M $+38.2M +42.6% +22.6%
BKNG|Booking Holdings Inc
2018-Q1 → 2018-Q4 (0.7y) $231.4M $220.2M $-11.1M -4.8% -6.4%