CASTLEARK MANAGEMENT LLC

Q3 2025 13F-HR Holdings

Location
Chicago, IL
Holdings as of
9/30/2025
Date filed
11/17/2025
Form type
13F-HR
Num holdings
284
Total value ($000)
$3,566,579
Net value change ($000)
+239,126 (7.2%)
New positions
60
Sold out positions
51
Turnover %
19.0%
Sector allocation + QoQ delta (equities-only)
Prev filing: 8/18/2025 Next filing: 2/13/2026 SEC filing

Snapshot: Change Analysis

Compared to Q2 2025
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
AVGO 67,924 NEW
NVDA 32,893 14.7%
SCHW 27,171 87.0%
GEV 26,056 1009.1%
GOOGL 22,598 33.1%
MCHP 20,363 204.2%
VRT 18,435 NEW
LRCX 16,627 32.7%
UBER 16,614 193.4%
SHOP 16,369 48.3%
Top Reduces (Value $000, Stocks/ETFs)
PM -53,428 -86.9%
ISRG -49,293 -98.9%
AMZN -45,562 -34.7%
TT -34,263 -100.0%
CARK -26,348 -7.6%
ANET -25,517 -30.3%
V -19,973 -25.9%
NFLX -19,911 -23.2%
MA -16,565 -22.5%
FICO -16,452 -100.0%
Instrument mix + QoQ Δ (ex-options)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type