John Osterweis - AltaRock Partners
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    8
Portfolio value:    $4,126,337,614
Holdings Activity Buys Sells    History
History Stock % of
Portfolio
Recent
Activity
Shares Reported
Price*
Value Current
Price
+/-
Reported
Price
52
Week
Low
52
Week
High
AMZN - Amazon.com Inc. 38.20 Add 3.46% 7,567,946 $208.27 $1,576,176,113 $246.03 18.13% $196.00 $278.56
TDG - TransDigm Group Inc. 25.54 Reduce 6.21% 909,168 $1,158.96 $1,053,689,345 $1,238.74 6.88% $1,123.61 $1,623.83
MSFT - Microsoft Corp. 16.75 Reduce 10.32% 1,867,537 $370.17 $691,306,171 $416.67 12.56% $356.28 $555.45
MCO - Moody's Corp. 9.11 Add 5.84% 862,036 $436.25 $376,063,205 $451.35 3.46% $402.28 $546.88
MA - Mastercard Inc. 6.33 Reduce 3.51% 522,836 $499.66 $261,240,236 $491.08 -1.72% $464.52 $601.77
V - Visa Inc. 3.65 Reduce 3.48% 498,677 $302.24 $150,720,137 $323.57 7.06% $293.89 $375.51
GOOGL - Alphabet Inc. 0.30 Reduce 74.38% 43,391 $287.56 $12,477,516 $368.53 28.16% $162.00 $408.61
HLT - Hilton Worldwide Holdings 0.11 Reduce 97.17% 15,341 $304.08 $4,664,891 $343.10 12.83% $241.45 $346.80
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
Sector % analysis
Consumer Cyclical 38.31
Industrials 25.54
Financial Services 19.10
Technology 16.75
Communication Services 0.30