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Magnetar Financial LLC

Location
EVANSTON, IL
Portfolio Value
Mid $9,639,673,397
Diversification
Highly concentrated
Reports for
Magnetar Asset Management LLC
Filing Date
Global Rank
#492 / 8,700 ▲ 31
Top Industry
Software - Infrastructure 55.6%
Period ended 2 months ago
Filed Aug 14, 2026 · 30d
26 quarters · since Mar 2020

Portfolio Concentration

898 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
53.8%
−6.4 pts
Top 5
57.4%
−6.6 pts
Top 10
61.4%
−6.8 pts
HHI
2,906
Sep 2023 → Jun 2026 · range 220 – 7,674
Highly concentrated−728

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Technology 59.7% $5,759,612,038
Financial Services 22.9% $2,203,111,116
Healthcare 3.6% $343,552,542
Industrials 2.8% $273,698,882
Communication Services 2.6% $253,978,118
Utilities 2.5% $238,746,677
Basic Materials 1.9% $186,562,922
Consumer Cyclical 1.5% $139,851,547
Consumer Defensive 1.1% $108,312,959
Energy 0.6% $53,764,402
Real Estate 0.4% $42,007,280
Unclassified 0.4% $36,474,914

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
750,000 375,000 $0
205,100 1,528,231 $12,896,043

New Positions

Positions the filer opened this quarter
25 positions
Ticker Shares Value Open
2,263,253 $26,502,692
4,970,430 $15,458,036

Sold Out

Positions the filer fully exited
25 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
898 tracked positions · $9,639,673,397 total · as of Jun 30, 2026
Showing 1–50 of 898 positions by value · page 1 of 18
Ticker Company Shares Value (USD) % of Portfolio History
1,156,698 $88,394,860 0.92%
1,184,635 $41,248,990 0.43%
812,216 $31,936,332 0.33%
2,263,253 $26,502,692 0.27%
4,349,317 $22,616,448 0.23%

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.