Magnetar Financial LLCMagnetar Financial LLC

Institutional investor · Portfolio as of Q1 2026

SEC EDGAR SourceSEC Filings

Top Holdings1,130 positions

Activity:
Stock
Shares
Value
Weight
Avg Buy
Est. P&L
Held
Conviction

COREWEAVE INC

68.6M$4.7B48.2%$40.18+78.87%
5 qtrssince 2025-Q1
Increased
62
ALALDelisted

AIR LEASE CORP

1.3M$87.2M0.9%$63.42+2.41%
3 qtrssince 2025-Q3
Decreased
0

CHART INDS INC

420,404$86.9M0.9%$201.38+4.23%
3 qtrssince 2025-Q3
Decreased
0

TXNM ENERGY INC

1.5M$86.2M0.9%$55.10+6.00%
4 qtrssince 2025-Q2
Decreased
0

PENUMBRA INC

251,433$82.6M0.8%$340.16-6.30%
1 qtr
New
58

WARNER BROS DISCOVERY INC

3M$81.7M0.8%$28.94-10.95%
2 qtrssince 2025-Q4
Decreased
0
PRAPRADelisted

PROASSURANCE CORP

3.2M$80.3M0.8%$23.36+4.94%
5 qtrssince 2025-Q1
Decreased
0

KENVUE INC

4.6M$79.4M0.8%$17.13+12.55%
2 qtrssince 2025-Q4
Decreased
0

WEBSTER FINL CORP

1.1M$78.9M0.8%$68.70+10.72%
3 qtrssince 2025-Q3
Increased
68

ALLIED GOLD CORP

2.5M$78.1M0.8%$31.40-33.57%
1 qtr
New
58

NORFOLK SOUTHN CORP

275,161$77.7M0.8%$296.87+18.12%
3 qtrssince 2025-Q3
Decreased
0

TECK RESOURCES LTD

1.5M$77.5M0.8%$46.07+30.64%
4 qtrssince 2025-Q2
Decreased
0
MASIMASIDelisted

MASIMO CORP

427,081$76M0.8%$174.79+2.10%
2 qtrssince 2025-Q4
Increased
68
??JD.COM INCDelisted
Bond
74.7M$74.6M0.8%
Increased
52
??TRIP COM GROUP LTDDelisted
Bond
69.4M$71.6M0.7%
Increased
46

DIGITALBRIDGE GROUP INC

4.2M$65M0.7%$15.36+3.51%
2 qtrssince 2025-Q4
Increased
66
CSGSCSGSDelisted

CSG SYS INTL INC

807,431$64.5M0.7%$76.70+5.20%
2 qtrssince 2025-Q4
Increased
42
??PG&E CORPDelisted
Bond
59M$61.3M0.6%
Increased
59
??HEWLETT PACKARD ENTERPRISE CDelisted
Convertible
925,000$60.3M0.6%
Increased
64

MICROCHIP TECHNOLOGY INC.

1M$58.9M0.6%$70.90+11.23%
3 qtrssince 2025-Q3
Increased
67
Showing 20 of 1,130 results.1,110 more with Pro.
$9.8B
AUM
1,130
Positions
Q1 2026
Filing
Rating · 3.0
Quarterly Portfolio Change
-6%Q4'24$4.4B+75%Q1'25$7.6B+171%Q2'25$20.7B-20%Q3'25$16.5B-38%Q4'25$10.2B-4%Q1'26$9.8B
Activity profile
$ moved · Q1'26
New37%Increased13%Decreased12%Exited39%
Composition
Equity vs derivatives
Equity100%Puts0%Calls0%
Holding period
Avg 2.1 years
<1Q25%1-4Q29%1-2Y10%2Y+36%

Magnetar Financial LLC manages $9.8B across 1130 positions as of Q1 2026. Top holdings: CRWV (48.2%), AL (0.9%), GTLS (0.9%). Fund DNA: Diversified Scout. HoldingsIntel Rating: 3/5.0.

Q1 2026 Summary

Active quarter - 570 new positions, 372 exits, 148 increased. Top move: WBS (INCREASED, conviction 68). Portfolio: $9.8B across 1130 positions.

Top holdings by portfolio weight

Total AUM$10B
CRWV48.17%
AL0.89%
GTLS0.88%
TXNM0.88%
PEN0.84%
WBD0.83%
PRA0.82%
KVUE0.81%
WBS0.80%
AAUC0.79%
Other0.79%

Portfolio allocation by GICS sector

Sectors11
Technology61.25%
Financial Services14.67%
Industrials5.34%
Healthcare4.82%
Unknown2.79%
Basic Materials2.41%
Utilities1.93%
Communication Services1.69%
Consumer Cyclical1.60%
Consumer Defensive1.54%
Other1.95%

Behavioral investing profile

7-dimension quality assessment
Solid(3.0 / 5.0)
Track Record47
Conviction43
Concentration84
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Position Outcomes

Best and worst performing positions by estimated return

Cost basis estimates based on full filing history using quarter-end prices. Actual transaction prices are not disclosed in 13F filings.

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Accumulation Streaks

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3Q
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Data sourced from SEC EDGAR 13F filings. Not financial advice. Full disclaimer

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