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GRITSTONE ASSET MANAGEMENT LLC

Location
Bethesda, MD
Portfolio Value
Micro $89,086,768
Diversification
Diversified
Filing Date
Global Rank
#6,364 / 8,710 ▲ 1612
Top Industry
Shell Companies 90.5%
Period ended 3 months ago
Filed Aug 6, 2026 · 45d
11 quarters · since Dec 2022

Portfolio Concentration

95 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
9.3%
+4.5 pts
Top 5
23.4%
+2.3 pts
Top 10
34.5%
+0.5 pts
HHI
244
Dec 2022 → Jun 2026 · range 206 – 5,858
Diversified+38

Portfolio Trend

11 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Financial Services 98.2% $87,475,657
Unclassified 1.8% $1,611,111

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
15 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
6 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
16 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
12 positions
Ticker Shares Value Open
157,608 $70,923
97,645 $0

Portfolio Positions

Export CSV View 13F filing
95 tracked positions · $89,086,768 total · filing declares 174 positions · $103,951,932 · as of Jun 30, 2026
Showing 1–50 of 95 positions by value · page 1 of 2
Ticker Company Shares Value (USD) % of Portfolio History
395,311 $2,073,411 2.33%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.