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 | |
|---|---|---|---|---|---|---|---|
151
Targa Resources
TRGP
$56.8B
| $5.77M | 0.16% |
21,510
| – | – |
2016 Q1
41 quarters
|
|
152
Vita Coco
COCO
$3.56B
| $5.75M | 0.16% |
86,960
-10,650
| -11% | -$719K |
2025 Q4
2 quarters
|
|
153
Marathon Petroleum
MPC
$101B
| $5.73M | 0.15% |
22,400
| – | – |
2026 Q1
1 quarter
|
|
154
Robinhood
HOOD
$72.9B
| $5.69M | 0.15% |
56,720
+6,390
| +13% | +$535K |
2024 Q4
6 quarters
|
|
155
Expand Energy Corp
EXE
$19.5B
| $5.58M | 0.15% |
61,230
| – | – |
2025 Q1
5 quarters
|
|
|
156
DigitalOcean
DOCN
$8.55B
| $5.58M | 0.15% |
35,537
-146,712
| -81% | -$19.8M |
2025 Q4
2 quarters
|
|
157
Axsome Therapeutics
AXSM
$6.96B
| $5.41M | 0.15% |
22,083
-890
| -4% | -$193K |
2025 Q1
5 quarters
|
|
158
TTM Technologies
TTMI
$7.01B
| $5.25M | 0.14% |
28,090
-63,140
| -69% | -$10.2M |
2025 Q3
3 quarters
|
|
159
Standex International
SXI
$2.76B
| $5.18M | 0.14% |
+14,470
| New | +$4.05M |
2026 Q2
0 quarters
|
|
160
J.M. Smucker
SJM
$13.9B
| $5.08M | 0.14% |
45,160
-14,420
| -24% | -$1.47M |
2026 Q1
1 quarter
|
|
161
SPDR Gold Trust
GLD
$136B
| $5M | 0.13% |
13,575
-2,660
| -16% | -$1.1M |
2014 Q4
46 quarters
|
|
162
Permian Resources
PR
$18.2B
| $4.99M | 0.13% |
270,950
-360,030
| -57% | -$7.23M |
2026 Q1
1 quarter
|
|
163
Genius Sports
GENI
$1.6B
| $4.89M | 0.13% |
+806,820
| New | +$4.18M |
2026 Q2
0 quarters
|
|
164
Brunswick
BC
$4.96B
| $4.78M | 0.13% |
56,720
-22,390
| -28% | -$1.79M |
2026 Q1
1 quarter
|
|
165
Argan
AGX
$3.89B
| $4.76M | 0.13% |
+5,960
| New | +$3.97M |
2026 Q2
0 quarters
|
|
166
Corning
GLW
$91.4B
| $4.72M | 0.13% |
+18,470
| New | +$3.36M |
2026 Q2
0 quarters
|
|
167
TC Energy
TRP
$64.5B
| $4.66M | 0.13% |
70,370
+5,560
| +9% | +$368K |
2025 Q1
5 quarters
|
|
168
IonQ
IONQ
$14B
| $4.6M | 0.12% |
+86,310
| New | +$4.37M |
2026 Q2
0 quarters
|
|
169
Energy Transfer Partners
ET
$65.1B
| $4.56M | 0.12% |
238,240
| – | – |
2016 Q4
38 quarters
|
|
170
Bandwidth Inc
BAND
$1.31B
| $4.36M | 0.12% |
+68,880
| New | +$3.09M |
2026 Q2
0 quarters
|
|
171
D-Wave Quantum Inc
QBTS
$4.05B
| $4.31M | 0.12% |
+179,690
| New | +$3.94M |
2026 Q2
0 quarters
|
|
172
SpaceX
SPCX
$1.82T
| $4.3M | 0.12% |
+25,180
| New | +$4.28M |
2026 Q2
0 quarters
|
|
173
Veracyte
VCYT
$1.95B
| $4.23M | 0.11% |
+72,016
| New | +$3.02M |
2026 Q2
0 quarters
|
|
174
Home Depot
HD
$343B
| $4.09M | 0.11% |
11,590
-1,270
| -10% | -$413K |
2013 Q2
52 quarters
|
|
175
nLIGHT
LASR
$2.19B
| $4.04M | 0.11% |
58,100
-31,750
| -35% | -$2.22M |
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.