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 | |
|---|---|---|---|---|---|---|---|
201
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$32.5B
| $2.11M | 0.06% |
19,300
+9,240
| +92% | +$1.01M |
2025 Q4
2 quarters
|
|
202
Nextpower Inc. Common Stock
NXT
$15B
| $2.07M | 0.06% |
17,350
-96,724
| -85% | -$11.9M |
2025 Q2
4 quarters
|
|
203
DELISTED
Arcosa
ACA
| $2.05M | 0.06% |
14,090
-60,560
| -81% | -$7.52M |
2025 Q4
2 quarters
|
|
204
FTAI Aviation
FTAI
$19.2B
| $2.01M | 0.05% |
7,446
-380
| -5% | -$95.6K |
2023 Q4
10 quarters
|
|
205
Ferrari
RACE
$72.9B
| $1.98M | 0.05% |
5,310
+20
| +0.4% | +$6.96K |
2016 Q4
38 quarters
|
|
|
206
Chevron
CVX
$412B
| $1.96M | 0.05% |
11,850
-124,700
| -91% | -$23.2M |
2026 Q1
1 quarter
|
|
207
VF Corp
VFC
$8.16B
| $1.93M | 0.05% |
+115,750
| New | +$2.07M |
2026 Q2
0 quarters
|
|
208
Varonis Systems
VRNS
$5.66B
| $1.93M | 0.05% |
+45,950
| New | +$1.35M |
2026 Q2
0 quarters
|
|
209
Dick's Sporting Goods
DKS
$14.8B
| $1.91M | 0.05% |
8,440
| – | – |
2013 Q2
52 quarters
|
|
210
Magnolia Oil & Gas
MGY
$6.12B
| $1.91M | 0.05% |
74,790
| – | – |
2021 Q3
19 quarters
|
|
211
iShares MSCI Brazil ETF
EWZ
$9.3B
| $1.91M | 0.05% |
+55,320
| New | +$2.07M |
2026 Q2
0 quarters
|
|
212
iShares Russell 1000 Growth ETF
IWF
$117B
| $1.87M | 0.05% |
15,080
| – | – |
2025 Q4
2 quarters
|
|
213
MPLX
MPLX
$57.4B
| $1.81M | 0.05% |
32,092
-9,800
| -23% | -$547K |
2015 Q4
42 quarters
|
|
214
Lincoln Electric
LECO
$15.4B
| $1.78M | 0.05% |
6,700
| – | – |
2013 Q2
52 quarters
|
|
215
State Street SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$3.96B
| $1.77M | 0.05% |
11,470
-33,870
| -75% | -$5.67M |
2026 Q1
1 quarter
|
|
216
Valero Energy
VLO
$97.8B
| $1.72M | 0.05% |
6,600
-780
| -11% | -$192K |
2013 Q2
52 quarters
|
|
217
Flex
FLEX
$28.1B
| $1.71M | 0.05% |
10,580
| – | – |
2025 Q2
4 quarters
|
|
218
Archrock
AROC
$4.89B
| $1.7M | 0.05% |
41,660
-9,030
| -18% | -$332K |
2023 Q3
11 quarters
|
|
219
Camtek
CAMT
$4.77B
| $1.6M | 0.04% |
9,830
-5,590
| -36% | -$991K |
2023 Q4
10 quarters
|
|
220
Plains All American Pipeline
PAA
$16.8B
| $1.57M | 0.04% |
70,459
| – | – |
2013 Q2
52 quarters
|
|
221
Carpenter Technology
CRS
$14.7B
| $1.53M | 0.04% |
2,480
+880
| +55% | +$414K |
2023 Q3
11 quarters
|
|
222
DT Midstream
DTM
$12.1B
| $1.44M | 0.04% |
9,830
| – | – |
2022 Q3
15 quarters
|
|
223
Select STOXX Europe Aerospace & Defense ETF
EUAD
$977M
| $1.3M | 0.04% |
30,800
-116,200
| -79% | -$4.8M |
2025 Q1
5 quarters
|
|
224
SiTime
SITM
$13.4B
| $1.29M | 0.03% |
1,731
-16,053
| -90% | -$10.1M |
2025 Q2
4 quarters
|
|
225
Qualcomm
QCOM
$186B
| $1.28M | 0.03% |
6,950
| – | – |
2013 Q2
52 quarters
|
|
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.