Castleark Management Portfolio holdings
CastleArk Management is an employee-owned manager of growth stock strategies, founded in 1999. It mainly buys U.S. stocks and, to a lesser extent, those of other countries, and its process aims to exploit behavioral biases found in growth stocks. Co-founder Jerome Castellini controls it and a sister firm, CastleArk Alternatives, which has existed since 2005 and sponsors private funds. Its clients are mainly investment funds and institutions, many of them retirement plans.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Morgan Stanley
MS
|
+$36.6M |
| 2 |
Apple
AAPL
|
+$34.9M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$32.1M |
| 4 |
Visa
V
|
+$26.4M |
| 5 |
Gilead Sciences
GILD
|
+$24.4M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Charles Schwab
SCHW
|
+$45.1M |
| 2 |
Ulta Beauty
ULTA
|
+$26.5M |
| 3 |
Shopify
SHOP
|
+$25.5M |
| 4 |
Chevron
CVX
|
+$23.2M |
| 5 |
DigitalOcean
DOCN
|
+$19.8M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 34.63% |
| 2 | Industrials | 12.24% |
| 3 | Miscellaneous | 11.82% |
| 4 | Healthcare | 10.33% |
| 5 | Consumer Discretionary | 9.33% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
76
AAR Corp
AIR
$4.25B
| $10.5M | 0.28% |
73,664
+13,400
| +22% | +$1.58M |
2025 Q3
3 quarters
|
|
77
Walmart Inc
WMT
$1.01T
| $10.4M | 0.28% |
91,570
-21,700
| -19% | -$2.69M |
2025 Q1
5 quarters
|
|
78
Crocs
CROX
$7B
| $10.4M | 0.28% |
+85,810
| New | +$9.38M |
2026 Q2
0 quarters
|
|
79
EQT Corp
EQT
$34.3B
| $10.3M | 0.28% |
193,845
| – | – |
2023 Q3
11 quarters
|
|
80
Sensient Technologies
SXT
$5.03B
| $10.2M | 0.28% |
+82,920
| New | +$9.23M |
2026 Q2
0 quarters
|
|
81
MaxLinear
MXL
$5.56B
| $10.2M | 0.28% |
+79,780
| New | +$5.64M |
2026 Q2
0 quarters
|
|
82
Solaris Energy Infrastructure
SEI
$4.31B
| $10.1M | 0.27% |
125,806
+31,550
| +33% | +$2.25M |
2024 Q4
6 quarters
|
|
83
Evercore
EVR
$11.7B
| $10M | 0.27% |
29,266
-1,150
| -4% | -$394K |
2023 Q3
11 quarters
|
|
|
84
Shopify
SHOP
$201B
| $10M | 0.27% |
87,164
-223,426
| -72% | -$25.5M |
2024 Q4
6 quarters
|
|
85
Allegro MicroSystems
ALGM
$6B
| $9.9M | 0.27% |
141,900
-5,520
| -4% | -$258K |
2026 Q1
1 quarter
|
|
86
UL Solutions
ULS
$15.2B
| $9.9M | 0.27% |
+96,780
| New | +$9.15M |
2026 Q2
0 quarters
|
|
87
Williams Companies
WMB
$87.1B
| $9.8M | 0.26% |
131,770
| – | – |
2020 Q1
25 quarters
|
|
88
Casella Waste Systems
CWST
$6.23B
| $9.7M | 0.26% |
+100,460
| New | +$8.58M |
2026 Q2
0 quarters
|
|
89
Cardinal Infrastructure Group
CDNL
$330M
| $9.7M | 0.26% |
+103,023
| New | +$5.93M |
2026 Q2
0 quarters
|
|
90
Solstice Advanced Materials
SOLS
$9.36B
| $9.7M | 0.26% |
108,980
-4,070
| -4% | -$336K |
2026 Q1
1 quarter
|
|
91
Dycom Industries
DY
$6.67B
| $9.5M | 0.26% |
18,816
-13,690
| -42% | -$5.98M |
2025 Q3
3 quarters
|
|
92
Ralliant Corp
RAL
$7.34B
| $9.48M | 0.26% |
+128,740
| New | +$7.18M |
2026 Q2
0 quarters
|
|
93
WESCO International
WCC
$16.3B
| $9.45M | 0.25% |
27,347
-1,050
| -4% | -$356K |
2024 Q4
6 quarters
|
|
94
WillScot Mobile Mini Holdings
WSC
$3.49B
| $9.41M | 0.25% |
+325,950
| New | +$7.88M |
2026 Q2
0 quarters
|
|
95
Knight Transportation
KNX
$10B
| $9.39M | 0.25% |
120,560
-5,470
| -4% | -$379K |
2026 Q1
1 quarter
|
|
96
Life Time Group Holdings
LTH
$9.8B
| $9.36M | 0.25% |
+229,298
| New | +$7.28M |
2026 Q2
0 quarters
|
|
97
Cognex
CGNX
$9.49B
| $9.32M | 0.25% |
128,730
+18,490
| +17% | +$1.12M |
2026 Q1
1 quarter
|
|
98
American Express
AXP
$220B
| $9.23M | 0.25% |
27,295
+24,620
| +920% | +$7.88M |
2013 Q2
52 quarters
|
|
99
Associated Banc-Corp
ASB
$5.78B
| $9.21M | 0.25% |
299,403
-12,020
| -4% | -$339K |
2024 Q4
6 quarters
|
|
100
Brookdale Senior Living
BKD
$2.49B
| $9.17M | 0.25% |
570,084
-28,370
| -5% | -$386K |
2026 Q1
1 quarter
|
|
Similar funds
Castleark Management's Q2 2026 Portfolio in Review
As of Q2 2026, Castleark Management held 350 positions worth $3.71B, up 23% from $3.02B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
Castleark Management's Q2 2026 filing shows 58 new, 69 increased, 89 reduced and 41 closed positions. Its largest new stake was SharkNinja: 127,170 shares worth $19.4M. The largest sale was Charles Schwab, an estimated $45.1M.
By sector, the portfolio is most concentrated in Technology at 35% of assets, up from 32% a quarter earlier, followed by Industrials and Miscellaneous.
- Castleark Management's largest Q2 2026 buy was SharkNinja: 127,170 shares worth $19.4M.
- Castleark Management added most to Morgan Stanley in Q2 2026, an estimated $36.6M increase.
- Castleark Management's biggest Q2 2026 reduction was Charles Schwab, cutting an estimated $45.1M.
- Castleark Management fully exited Ulta Beauty in Q2 2026, selling an estimated $26.5M.
- Castleark Management's ten largest holdings make up 34% of its $3.71B portfolio in Q2 2026.
- Castleark Management opened 58 new positions and closed 41 in Q2 2026.
- Castleark Management's portfolio value rose 23% quarter-over-quarter to $3.71B.
Based on Castleark Management's 13F filing for Q2 2026, filed 14 Aug 2026.