Mark Massey - AltaRock Partners 13F Activity & Position Changes (Q2 2016)

As of Jun 30, 2016, the AltaRock Partners portfolio activity showed several notable changes in holdings, according to the latest SEC 13F filing reported on May 15, 2026. The activity included new positions, additions to existing holdings, reductions, and complete exits, providing a clear view of how the portfolio evolved during the quarter.

During Q2 2016, the filing reported:

New Buys - Berkshire Hathaway Inc. New, Charter Communications, Inc.

Increases - None reported

Reductions - Interactive Brokers Group, Inc., Moody's Corporation, Transdigm Group Incorporated

Complete Exits - None reported

These updates highlight how the portfolio adjusted across different sectors and market conditions, offering insights into allocation shifts and investment trends.

Date	Symbol	Name	Type	Change Qty	% Change	Value	Remaining
Q2 2016	BRK-B Berkshire Hathaway Inc. New	Berkshire Hathaway Inc. New	Buy - Position Entry	+315,375	-	$45.66K	315,375
Q2 2016	CHTR Charter Communications, Inc.	Charter Communications, Inc.	Buy - Position Entry	+547,937	-	$125.28K	547,937
Q2 2016	IBKR Interactive Brokers Group, Inc.	Interactive Brokers Group, Inc.	Sell	-20,000	-73.5%	$255.00	7,201
Q2 2016	MCO Moody's Corporation	Moody's Corporation	Sell	-47,780	-4.6%	$92.96K	992,019
Q2 2016	TDG Transdigm Group Incorporated	Transdigm Group Incorporated	Sell	-291,067	-39.9%	$115.80K	439,148