Mark Massey - AltaRock Partners Portfolio

Name: Investment Portfolio Data
License: https://creativecommons.org/licenses/by/4.0/

Period Date		Mar 31, 2025
Filing Date		May 14, 2025
Total Stocks		9
Portfolio Value		$4.97B

AltaRock Partners Activity

Date	Symbol	Name	Type	Quantity	Value	Remaining
Q1 2017Mar 31, 2017	MCO Moody's Corporation	Moody's Corporation	Buy	+4,100+0.4%	$121.28K	1,082,436
Q1 2017Mar 31, 2017	WAB Westinghouse Air Brake Technolo	Westinghouse Air Brake Technolo	Sell	-3,400-0.5%	$53.54K	686,426
Q1 2017Mar 31, 2017	MA Mastercard Incorporated	Mastercard Incorporated	Sell	-5,400-1.3%	$44.80K	398,290
Q1 2017Mar 31, 2017	TDG Transdigm Group Incorporated	Transdigm Group Incorporated	Sell	-55,434-9.4%	$118.02K	536,070
Q1 2017Mar 31, 2017	CHTR Charter Communications, Inc.	Charter Communications, Inc.	Sell	-96,100-20.0%	$126.19K	385,537
Q4 2016Dec 31, 2016	TDG Transdigm Group Incorporated	Transdigm Group Incorporated	Buy	+152,356+34.7%	$147.26K	591,504
Q4 2016Dec 31, 2016	MCO Moody's Corporation	Moody's Corporation	Buy	+113,336+11.7%	$101.66K	1,078,336
Q4 2016Dec 31, 2016	CHTR Charter Communications, Inc.	Charter Communications, Inc.	Sell	-66,300-12.1%	$138.67K	481,637
Q4 2016Dec 31, 2016	WAB Westinghouse Air Brake Technolo	Westinghouse Air Brake Technolo	Sell	-150,000-17.9%	$57.27K	689,826
Q3 2016Sep 30, 2016	WAB Westinghouse Air Brake Technolo	Westinghouse Air Brake Technolo	Buy - Position Entry	+839,826	$68.57K	839,826
Q3 2016Sep 30, 2016	IBKR Interactive Brokers Group, Inc.	Interactive Brokers Group, Inc.	Sell - Position Exit	-7,201-100.0%	$0.00	-
Q3 2016Sep 30, 2016	MCO Moody's Corporation	Moody's Corporation	Sell	-27,019-2.7%	$104.49K	965,000
Q3 2016Sep 30, 2016	BRK-B Berkshire Hathaway Inc. New	Berkshire Hathaway Inc. New	Sell - Position Exit	-315,375-100.0%	$0.00	-
Q2 2016Jun 30, 2016	CHTR Charter Communications, Inc.	Charter Communications, Inc.	Buy - Position Entry	+547,937	$125.28K	547,937
Q2 2016Jun 30, 2016	BRK-B Berkshire Hathaway Inc. New	Berkshire Hathaway Inc. New	Buy - Position Entry	+315,375	$45.66K	315,375
Q2 2016Jun 30, 2016	IBKR Interactive Brokers Group, Inc.	Interactive Brokers Group, Inc.	Sell	-20,000-73.5%	$255.00	7,201
Q2 2016Jun 30, 2016	MCO Moody's Corporation	Moody's Corporation	Sell	-47,780-4.6%	$92.96K	992,019
Q2 2016Jun 30, 2016	TDG Transdigm Group Incorporated	Transdigm Group Incorporated	Sell	-291,067-39.9%	$115.80K	439,148
Q1 2016Mar 31, 2016	MCO Moody's Corporation	Moody's Corporation	Buy	+197,429+23.4%	$100.40K	1,039,799
Q1 2016Mar 31, 2016	TDG Transdigm Group Incorporated	Transdigm Group Incorporated	Buy	+34,972+5.0%	$160.90K	730,215
Q1 2016Mar 31, 2016	V Visa Inc.	Visa Inc.	Buy	+32,100+12.8%	$21.61K	282,516
Q4 2015Dec 31, 2015	MCO Moody's Corporation	Moody's Corporation	Buy	+107,860+14.7%	$84.52K	842,370
Q4 2015Dec 31, 2015	TDG Transdigm Group Incorporated	Transdigm Group Incorporated	Buy	+75,380+12.2%	$158.83K	695,243
Q3 2015Sep 30, 2015	MCO Moody's Corporation	Moody's Corporation	Buy	+267,595+57.3%	$72.13K	734,510
Q3 2015Sep 30, 2015	TDG Transdigm Group Incorporated	Transdigm Group Incorporated	Buy	+186,242+43.0%	$131.66K	619,863
Q3 2015Sep 30, 2015	MA Mastercard Incorporated	Mastercard Incorporated	Buy	+8,300+2.1%	$36.38K	403,690
Q3 2015Sep 30, 2015	IBKR Interactive Brokers Group, Inc.	Interactive Brokers Group, Inc.	Sell	-5,900-17.8%	$1.07K	27,201
Q3 2015Sep 30, 2015	V Visa Inc.	Visa Inc.	Sell	-29,660-10.6%	$17.44K	250,416
Q2 2015Jun 30, 2015	TDG Transdigm Group Incorporated	Transdigm Group Incorporated	Buy	+201,871+87.1%	$97.42K	433,621
Q2 2015Jun 30, 2015	MA Mastercard Incorporated	Mastercard Incorporated	Buy	+83,700+26.9%	$36.96K	395,390

Page 7 of 8 • 223 total trades

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