Sunstone Asset Management, LP

Q3 2026 13F-HR Holdings

Location
New York, NY
Holdings as of
9/30/2026
Date filed
11/13/2026
Form type
13F-HR
Num holdings
60
Total value ($000)
$103,961
Net value change ($000)
+11,602 (12.6%)
New positions
16
Sold out positions
9
Turnover %
38.8%
Sector allocation + QoQ delta (equities-only)
Prev filing: 8/14/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q2 2026
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)
NOW 3,713 333.0%
MSFT 3,180 NEW
CRWD 2,955 NEW
TXN 2,017 NEW
TWLO 1,946 182.6%
MELI 1,711 NEW
INTC 1,647 NEW
BKNG 1,595 NEW
JOYY 1,565 126.8%
KLAC 1,548 144.9%
Top Reduces (Value $000, Stocks/ETFs)
AMAT -3,833 -69.9%
MKSI -3,090 -59.9%
SNOW -3,054 -100.0%
APH -2,557 -100.0%
DASH -1,821 -43.1%
ANET -1,767 -100.0%
NTNX -1,676 -100.0%
MRSH -1,322 -100.0%
TER -1,123 -100.0%
MTSI -1,114 -25.1%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 801 (0.8% of total reported value)
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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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type