Magnetar Financial LLC

Q3 2026 13F-HR Holdings

Location
Evanston, IL
Holdings as of
9/30/2026
Date filed
11/13/2026
Form type
13F-HR
Num holdings
1,468
Total value ($000)
$10,215,653
Net value change ($000)
-743,243 (-6.8%)
New positions
659
Sold out positions
372
Turnover %
28.9%
Sector allocation + QoQ delta (equities-only)

Holdings aggregated across other managers listed in the original SEC filing. View detailed breakdown

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)
SAFT 64,189 NEW
ATKR 59,862 13856.9%
MKTX 59,301 NEW
DUKE ENERGY CORP NEW 55,798 NEW
BLFS 42,521 NEW
ACA 37,726 82.1%
IRDM 36,717 437.0%
CHURCHILL CAP CORP XIII 36,260 NEW
ALPHABET INC 36,107 NEW
BA 34,809 NEW
Top Reduces (Value $000, Stocks/ETFs)
CRWV -1,025,238 -19.8%
WBS -88,395 -100.0%
GTLS -87,402 -100.0%
DBRG -64,993 -100.0%
ALPHABET INC -59,386 -78.7%
ORCL -56,401 -88.0%
NSA -54,989 -100.0%
APGE -52,976 -100.0%
AAUC -50,061 -100.0%
SKYT -41,249 -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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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type