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Alyeska Investment Group, L.P.

Location
CHICAGO, IL
Portfolio Value
Large $35,826,551,657
Diversification
Diversified
Reports for
Alyeska Master Fund, L.P.
Filing Date
Global Rank
#217 / 8,700 ▼ 12
Top Industry
Software - Infrastructure 7.2%
Period ended 3 months ago
Filed Aug 14, 2026 · 31d
26 quarters · since Mar 2020

Portfolio Concentration

650 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
3.0%
−4.7 pts
Top 5
11.2%
−5.8 pts
Top 10
17.0%
−6.6 pts
HHI
63
Sep 2023 → Jun 2026 · range 63 – 237
Diversified−54

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Technology 28.1% $10,056,410,035
Industrials 14.9% $5,354,929,484
Healthcare 12.7% $4,534,190,933
Consumer Cyclical 11.7% $4,208,554,145
Real Estate 7.7% $2,775,783,899
Communication Services 5.9% $2,097,107,291
Financial Services 5.5% $1,953,648,029
Energy 5.4% $1,951,572,192
Consumer Defensive 4.5% $1,619,794,477
Basic Materials 2.6% $934,217,168
Utilities 0.9% $305,291,239
Unclassified 0.1% $35,052,765

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

Added To

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

Trimmed

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

New Positions

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

Sold Out

Positions the filer fully exited
25 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
650 tracked positions · $35,826,551,657 total · filing declares 652 positions · $38,859,514,149 · as of Jun 30, 2026
Showing 1–50 of 650 positions by value · page 1 of 13
Ticker Company Shares Value (USD) % of Portfolio History

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.