Mark Massey - AltaRock Partners 13F Activity & Position Changes (Q2 2018)

As of Jun 30, 2018, 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 2018, the filing reported:

New Buys - O'Reilly Automotive, Inc.

Increases - Booking Holdings Inc. Common St, Charter Communications, Inc.

Reductions - None reported

Complete Exits - Westinghouse Air Brake Technolo

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 2018	BKNG Booking Holdings Inc. Common St	Booking Holdings Inc. Common St	Buy	+1,300	+1.3%	$209.77K	103,483
Q2 2018	CHTR Charter Communications, Inc.	Charter Communications, Inc.	Buy	+96,884	+16.4%	$201.26K	686,398
Q2 2018	ORLY O'Reilly Automotive, Inc.	O'Reilly Automotive, Inc.	Buy - Position Entry	+333,079	-	$91.12K	333,079
Q2 2018	WAB Westinghouse Air Brake Technolo	Westinghouse Air Brake Technolo	Sell - Position Exit	-666,426	-100.0%	$0.00	-