Filed: 2/13/2026ACC: 0001106832-26-000001
📋 What this filing means
CASTLEARK MANAGEMENT LLC filed this quarterly 13F‑HR report disclosing 294 equity positions with a total reported market value of $3.41B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
294
Positions
$3.41B
Total AUM (reported)
36.87M
Total Shares
Allocation by class
COM$2.01B58.9%
COM NEW$179.93M5.3%
CL A$174.43M5.1%
COM CL A$144.69M4.2%
STATE STREET SPD$134.10M3.9%
CAP STK CL A$119.45M3.5%
COM SHS$87.06M2.6%
Portfolio Concentration
Top 3$560.75M16.5%
4–10$624.82M18.3%
11–25$707.81M20.8%
Rest$1.51B44.4%
Top 3 weight
16.5%
Top 10 weight
34.8%
Voting Authority Distribution
Total shares with voting rights: 36.87M
Sole
Full voting authority
36.87M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole294
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings294
Rows:
NVIDIA CORPORATION
SOLEShares1.41M
TypeSH
Market value$262.62M
7.71%
Sole
1.41M
Shared
0.00
None
0.00
MICROSOFT CORP
SOLEShares369.46K
TypeSH
Market value$178.68M
5.25%
Sole
369.46K
Shared
0.00
None
0.00
ALPHABET INC
SOLEShares381.64K
TypeSH
Market value$119.45M
3.51%
Sole
381.64K
Shared
0.00
None
0.00
AMAZON COM INC
SOLEShares472.15K
TypeSH
Market value$108.98M
3.20%
Sole
472.15K
Shared
0.00
None
0.00
APPLE INC
SOLEShares387.04K
TypeSH
Market value$105.22M
3.09%
Sole
387.04K
Shared
0.00
None
0.00
ELI LILLY & CO
SOLEShares81.58K
TypeSH
Market value$87.67M
2.57%
Sole
81.58K
Shared
0.00
None
0.00
SPDR SERIES TRUST
SOLEShares2.52M
TypeSH
Market value$85.18M
2.50%
Sole
2.52M
Shared
0.00
None
0.00
META PLATFORMS INC
SOLEShares122.42K
TypeSH
Market value$80.80M
2.37%
Sole
122.42K
Shared
0.00
None
0.00
VANGUARD SCOTTSDALE FDS
SOLEShares1.71M
TypeSH
Market value$80.30M
2.36%
Sole
1.71M
Shared
0.00
None
0.00
ISHARES TR
SOLEShares3.33M
TypeSH
Market value$76.66M
2.25%
Sole
3.33M
Shared
0.00
None
0.00
BROADCOM INC
SOLEShares205.88K
TypeSH
Market value$71.26M
2.09%
Sole
205.88K
Shared
0.00
None
0.00
LAM RESEARCH CORP
SOLEShares372.88K
TypeSH
Market value$63.83M
1.87%
Sole
372.88K
Shared
0.00
None
0.00
SCHWAB CHARLES CORP
SOLEShares622.53K
TypeSH
Market value$62.20M
1.83%
Sole
622.53K
Shared
0.00
None
0.00
VISA INC
SOLEShares170.48K
TypeSH
Market value$59.79M
1.76%
Sole
170.48K
Shared
0.00
None
0.00
MASTERCARD INCORPORATED
SOLEShares102.45K
TypeSH
Market value$58.49M
1.72%
Sole
102.45K
Shared
0.00
None
0.00
SHOPIFY INC
SOLEShares345.38K
TypeSH
Market value$55.60M
1.63%
Sole
345.38K
Shared
0.00
None
0.00
ARISTA NETWORKS INC
SOLEShares411.28K
TypeSH
Market value$53.89M
1.58%
Sole
411.28K
Shared
0.00
None
0.00
SERVICENOW INC
SOLEShares270.42K
TypeSH
Market value$41.43M
1.22%
Sole
270.42K
Shared
0.00
None
0.00
SPDR SERIES TRUST
SOLEShares1.33M
TypeSH
Market value$39.06M
1.15%
Sole
1.33M
Shared
0.00
None
0.00
BLACKSTONE INC
SOLEShares244.27K
TypeSH
Market value$37.65M
1.11%
Sole
244.27K
Shared
0.00
None
0.00
GILEAD SCIENCES INC
SOLEShares277.33K
TypeSH
Market value$34.04M
1.00%
Sole
277.33K
Shared
0.00
None
0.00
ISHARES TR
SOLEShares347.58K
TypeSH
Market value$33.38M
0.98%
Sole
347.58K
Shared
0.00
None
0.00
SNOWFLAKE INC
SOLEShares151.19K
TypeSH
Market value$33.17M
0.97%
Sole
151.19K
Shared
0.00
None
0.00
MICROCHIP TECHNOLOGY INC.
SOLEShares515.49K
TypeSH
Market value$32.85M
0.96%
Sole
515.49K
Shared
0.00
None
0.00
GE VERNOVA INC
SOLEShares47.74K
TypeSH
Market value$31.20M
0.92%
Sole
47.74K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
NVIDIA CORPORATIONSOLE | COM | 1.41M | SH | $262.62M 7.71% | 1.41M | 0.00 | 0.00 |
MICROSOFT CORPSOLE | COM | 369.46K | SH | $178.68M 5.25% | 369.46K | 0.00 | 0.00 |
ALPHABET INCSOLE | CAP STK CL A | 381.64K | SH | $119.45M 3.51% | 381.64K | 0.00 | 0.00 |
AMAZON COM INCSOLE | COM | 472.15K | SH | $108.98M 3.20% | 472.15K | 0.00 | 0.00 |
APPLE INCSOLE | COM | 387.04K | SH | $105.22M 3.09% | 387.04K | 0.00 | 0.00 |
ELI LILLY & COSOLE | COM | 81.58K | SH | $87.67M 2.57% | 81.58K | 0.00 | 0.00 |
SPDR SERIES TRUSTSOLE | STATE STREET SPD | 2.52M | SH | $85.18M 2.50% | 2.52M | 0.00 | 0.00 |
META PLATFORMS INCSOLE | CL A | 122.42K | SH | $80.80M 2.37% | 122.42K | 0.00 | 0.00 |
VANGUARD SCOTTSDALE FDSSOLE | MTG-BKD SECS ETF | 1.71M | SH | $80.30M 2.36% | 1.71M | 0.00 | 0.00 |
ISHARES TRSOLE | US TREAS BD ETF | 3.33M | SH | $76.66M 2.25% | 3.33M | 0.00 | 0.00 |
BROADCOM INCSOLE | COM | 205.88K | SH | $71.26M 2.09% | 205.88K | 0.00 | 0.00 |
LAM RESEARCH CORPSOLE | COM NEW | 372.88K | SH | $63.83M 1.87% | 372.88K | 0.00 | 0.00 |
SCHWAB CHARLES CORPSOLE | COM | 622.53K | SH | $62.20M 1.83% | 622.53K | 0.00 | 0.00 |
VISA INCSOLE | COM CL A | 170.48K | SH | $59.79M 1.76% | 170.48K | 0.00 | 0.00 |
MASTERCARD INCORPORATEDSOLE | CL A | 102.45K | SH | $58.49M 1.72% | 102.45K | 0.00 | 0.00 |
SHOPIFY INCSOLE | CL A SUB VTG SHS | 345.38K | SH | $55.60M 1.63% | 345.38K | 0.00 | 0.00 |
ARISTA NETWORKS INCSOLE | COM SHS | 411.28K | SH | $53.89M 1.58% | 411.28K | 0.00 | 0.00 |
SERVICENOW INCSOLE | COM | 270.42K | SH | $41.43M 1.22% | 270.42K | 0.00 | 0.00 |
SPDR SERIES TRUSTSOLE | STATE STREET SPD | 1.33M | SH | $39.06M 1.15% | 1.33M | 0.00 | 0.00 |
BLACKSTONE INCSOLE | COM | 244.27K | SH | $37.65M 1.11% | 244.27K | 0.00 | 0.00 |
GILEAD SCIENCES INCSOLE | COM | 277.33K | SH | $34.04M 1.00% | 277.33K | 0.00 | 0.00 |
ISHARES TRSOLE | MSCI EAFE ETF | 347.58K | SH | $33.38M 0.98% | 347.58K | 0.00 | 0.00 |
SNOWFLAKE INCSOLE | COM SHS | 151.19K | SH | $33.17M 0.97% | 151.19K | 0.00 | 0.00 |
MICROCHIP TECHNOLOGY INC.SOLE | COM | 515.49K | SH | $32.85M 0.96% | 515.49K | 0.00 | 0.00 |
GE VERNOVA INCSOLE | COM | 47.74K | SH | $31.20M 0.92% | 47.74K | 0.00 | 0.00 |
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