Mark Massey Holdings Activity

AltaRock Partners Portfolio 13F

AltaRock Partners has disclosed a total of 7 changes to the portfolio in the latest (2025 Q1) SEC report(s): increased the number of shares of 2, decreased the number of shares of 4 and completely sold out 1 position(s).

What stocks is Mark Massey buying now?

In the recent quarter Mark Massey has purchased 2 securities: (MSFT) MICROSOFT CORP (added shares +36.32%) and (HLT) HILTON WORLDWIDE HOLDINGS IN (added shares +199.97%).

What does Mark Massey invest in?

Mark Massey's top 5 holdings (by % of portfolio) are (TDG) TRANSDIGM GROUP INC (27.26%), (AMZN) AMAZONCOM INC (19.9%), (MSFT) MICROSOFT CORP (19.46%), (GOOGL) ALPHABET INC-CL A (10.74%) and (MCO) MOODY'S CORP (8.9%).

In the latest report(s) the following changes have been made to the top investments: (TDG) TRANSDIGM GROUP INC (reduced shares -2.06%), (AMZN) AMAZONCOM INC (reduced shares -1.44%), (MSFT) MICROSOFT CORP (added shares +36.32%) and (GOOGL) ALPHABET INC-CL A (reduced shares -0.76%).

History
Ticker
Stock
%
Activity
Share
Change
% change to
Portfolio
Reported
Price*
% difference
Current Price
% of
Portfolio
2021 Q4 (6 results)
V
VISA INC-CLASS A SHARES
+17,472.26%
+1,487,588
+8.50%
$216.71
63.84% $355.05
8.55%
MA
MASTERCARD INC - A
+42.55%
+64,875
+0.71%
$359.32
56.39% $561.94
2.38%
CHTR
CHARTER COMMUNICATIONS INC-A
+13.43%
+159,814
+2.75%
$651.97
37.30% $408.81
23.19%
TDG
TRANSDIGM GROUP INC
+1.88%
+24,872
+0.42%
$636.28
138.99% $1,520.64
22.66%
GOOGL
ALPHABET INC-CL A
+0.87%
+44,000
+0.19%
$144.85
21.66% $176.23
22.02%
META
META PLATFORMS INC-CLASS A
-72.67%
-1,406,849
-12.47%
$336.35
119.44% $738.09
4.69%
2021 Q3 (6 results)
MSFT
MICROSOFT CORP
+108.93%
+802,674
+6.82%
$281.92
76.44% $497.41
13.08%
TDG
TRANSDIGM GROUP INC
+5.57%
+70,000
+1.18%
$624.57
143.47% $1,520.64
22.34%
CHTR
CHARTER COMMUNICATIONS INC-A
-1.23%
-13,736
-0.29%
$727.56
43.81% $408.81
23.35%
GOOGL
ALPHABET INC-CL A
-10.64%
-680,800
-2.45%
$133.68
31.83% $176.23
20.62%
META
META PLATFORMS INC-CLASS A
-13.38%
-299,144
-2.74%
$339.39
117.48% $738.09
17.72%
MCO
MOODY'S CORP
-46.07%
-95,875
-1.01%
$355.11
41.25% $501.59
1.18%
2021 Q2 (4 results)
MSFT
MICROSOFT CORP
buy
+823,333
+6.17%
$270.90
83.61% $497.41
6.17%
TDG
TRANSDIGM GROUP INC
+31.87%
+294,510
+5.44%
$647.29
134.92% $1,520.64
22.51%
CHTR
CHARTER COMMUNICATIONS INC-A
+16.70%
+172,374
+3.44%
$721.45
43.33% $408.81
24.05%
META
META PLATFORMS INC-CLASS A
+2.64%
+54,912
+0.55%
$347.71
112.27% $738.09
21.51%
2021 Q1 (3 results)
META
META PLATFORMS INC-CLASS A
+27.21%
+465,800
+5.21%
$294.53
150.60% $738.09
24.38%
CHTR
CHARTER COMMUNICATIONS INC-A
+15.36%
+137,451
+3.22%
$617.02
33.74% $408.81
24.21%
TDG
TRANSDIGM GROUP INC
-7.11%
-72,962
-1.63%
$587.92
158.65% $1,520.64
21.29%
2020 Q4 (7 results)
META
META PLATFORMS INC-CLASS A
buy
+1,711,882
+19.60%
$273.16
170.20% $738.09
19.60%
V
VISA INC-CLASS A SHARES
-0.02%
-2
-0.00%
$218.70
62.35% $355.05
0.08%
GOOGL
ALPHABET INC-CL A
-11.35%
-434,271
-3.01%
$87.63
101.10% $176.23
23.50%
TDG
TRANSDIGM GROUP INC
-16.28%
-199,436
-5.17%
$618.85
145.72% $1,520.64
26.60%
CHTR
CHARTER COMMUNICATIONS INC-A
-18.32%
-200,723
-5.57%
$661.55
38.20% $408.81
24.81%
MA
MASTERCARD INC - A
-54.45%
-108,505
-3.15%
$356.94
57.43% $561.94
2.64%
MCO
MOODY'S CORP
-65.61%
-436,187
-5.31%
$290.24
72.82% $501.59
2.78%
2020 Q3 (5 results)
TDG
TRANSDIGM GROUP INC
+2.74%
+32,629
+0.73%
$475.12
220.05% $1,520.64
27.45%
GOOGL
ALPHABET INC-CL A
+0.18%
+12,840
+0.04%
$73.28
140.49% $176.23
24.95%
CHTR
CHARTER COMMUNICATIONS INC-A
-4.84%
-55,695
-1.64%
$624.34
34.52% $408.81
32.26%
MA
MASTERCARD INC - A
-6.07%
-14,000
-0.40%
$338.17
66.17% $561.94
6.17%
MCO
MOODY'S CORP
-9.60%
-70,639
-0.97%
$289.85
73.05% $501.59
9.09%
2020 Q2 (6 results)
GOOGL
ALPHABET INC-CL A
+23.82%
+1,386,000
+5.04%
$70.90
148.55% $176.23
26.19%
TDG
TRANSDIGM GROUP INC
+18.04%
+182,265
+4.13%
$442.05
244.00% $1,520.64
27.02%
MA
MASTERCARD INC - A
+13.81%
+29,500
+0.76%
$295.70
90.04% $561.94
6.24%
CHTR
CHARTER COMMUNICATIONS INC-A
+5.07%
+55,552
+1.45%
$510.04
19.85% $408.81
30.10%
MCO
MOODY'S CORP
-50.50%
-750,230
-10.57%
$274.73
82.58% $501.59
10.36%
V
VISA INC-CLASS A SHARES
-95.92%
-114,999
-1.98%
$193.17
83.81% $355.05
0.08%
2020 Q1 (7 results)
TDG
TRANSDIGM GROUP INC
+72.68%
+425,143
+8.64%
$320.19
374.92% $1,520.64
20.54%
MCO
MOODY'S CORP
+41.46%
+435,463
+5.85%
$211.50
137.16% $501.59
19.95%
GOOGL
ALPHABET INC-CL A
+26.50%
+1,218,860
+4.50%
$58.10
203.33% $176.23
21.47%
CHTR
CHARTER COMMUNICATIONS INC-A
+1.29%
+14,000
+0.39%
$436.31
6.30% $408.81
30.35%
MA
MASTERCARD INC - A
-8.82%
-21,700
-0.54%
$241.56
132.63% $561.94
5.55%
V
VISA INC-CLASS A SHARES
-17.10%
-26,015
-0.44%
$161.12
120.36% $355.05
2.13%
ORLY
O'REILLY AUTOMOTIVE INC
-100.00%
-1,408,770
-2.61%
$29.22
208.48% $90.13
0.00%
2019 Q4 (1 result)
GOOGL
ALPHABET INC-CL A
buy
+3,059,000
+19.06%
$66.97
163.15% $176.23
19.06%
2019 Q3 (5 results)
CHTR
CHARTER COMMUNICATIONS INC-A
+13.35%
+88,534
+4.55%
$412.12
0.80% $408.81
38.63%
TDG
TRANSDIGM GROUP INC
-3.47%
-21,000
-0.95%
$520.67
192.05% $1,520.64
26.39%
MCO
MOODY'S CORP
-7.08%
-80,000
-1.42%
$204.83
144.88% $501.59
18.64%
V
VISA INC-CLASS A SHARES
-10.97%
-31,000
-0.46%
$172.01
106.41% $355.05
3.75%
ORLY
O'REILLY AUTOMOTIVE INC
-69.58%
-2,191,072
-7.42%
$26.57
239.25% $90.13
3.24%
50 of 232

Shares, change to shares, sold shares - split-adjusted.

Reported price - this doesn't represent the actual buy or sell price.
It is the split-adjusted price of the security as of the last day of the reported period.

Value or Price - If the security is completely sold out, we show the reported value (or price) prior to the actual period.