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Super Investors / Magnetar Financial LLC
MF

Magnetar Financial LLC

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$11B
Positions
1134
Quarter ended
June 30, 2026
Filed
August 14, 2026

Reported portfolio value by quarter (55 quarters reported)

$20.7B $384M
Q4 12 Q3 15 Q2 18 Q1 21 Q4 23 Q2 26

$384M in Q4 2012 → $11B now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
Coreweave Inc 47.3% Trimmed 24% 52,062,927 $5.18B
HP Hewlett Packard Enterprise C 0.8% Trimmed 18% 760,010 $89M
WF Webster Finl Corp 0.8% Added 1.8% 1,156,698 $88.4M
Kenvue Inc 0.8% Added 0.2% 4,615,344 $88.2M
CI Chart Inds Inc 0.8% Trimmed 0.5% 418,310 $87.4M
NS Norfolk Southn Corp 0.8% Added 0.0% 275,215 $86.6M
Jd.com Inc 0.8% Added 16% 86,634,000 $85.1M
Dominion Energy Inc 0.8% New 1,219,394 $83.3M
Txnm Energy Inc 0.8% Trimmed 1.8% 1,448,220 $82.2M
Penumbra Inc 0.7% Added 1.8% 255,841 $80.8M
Teck Resources Ltd 0.7% Trimmed 11% 1,330,207 $79.1M
Microchip Technology Inc. 0.7% Trimmed 4.2% 982,230 $75.6M
Alphabet Inc 0.7% New 1,496,367 $75.5M
AG Alibaba Group Hldg Ltd 0.7% Added 93% 63,177,000 $74.5M
Warner Bros Discovery Inc 0.7% Trimmed 8.9% 2,747,884 $73.3M
Roku Inc 0.6% Added 13812% 507,080 $70M
Digitalbridge Group Inc 0.6% Trimmed 2.3% 4,118,704 $65M
Oracle Corp 0.6% Added 119% 1,425,420 $64.1M
Firstenergy Corp 0.6% New 56,500,000 $61.7M
Trip Com Group Ltd 0.5% Trimmed 16% 58,445,000 $57.7M
Gamestop Corp 0.5% New 55,570,000 $56.8M
NS National Storage Affiliates 0.5% Added 0.7% 1,236,534 $55M
Silicon Laboratories Inc 0.5% Added 2.2% 251,225 $54.9M
Bio-techne Corp 0.5% New 761,911 $53.8M
Apogee Therapeutics Inc 0.5% New 399,123 $53M
CE Caesars Entertainment Inc Ne 0.5% New 1,746,938 $52.7M
LH Liveramp Hldgs Inc 0.5% New 1,379,116 $51.9M
Qorvo Inc 0.5% Added 1.3% 548,149 $51.1M
Payoneer Global Inc 0.5% Added 53873% 7,109,868 $50.6M
Allied Gold Corp 0.5% Trimmed 16% 2,108,808 $50.1M
Bruker Corp 0.4% New 108,963 $48.6M
EU Essential Utils Inc 0.4% Added 4.5% 1,258,246 $48.2M
Novanta Inc 0.4% Added 40% 700,563 $47.8M
Alliant Energy Corp 0.4% New 43,475,000 $47.6M
UM Unifirst Corp Mass 0.4% Added 1.6% 174,619 $46.2M
Arcosa Inc 0.4% New 316,267 $46M
ST Skywater Technology Inc 0.4% Added 0.8% 1,184,635 $41.2M
Organon & Co 0.3% New 2,810,019 $38M
PG&E Corp 0.3% Trimmed 38% 36,785,000 $37.6M
Valaris Ltd 0.3% Added 1.4% 494,010 $35.9M
CC Churchill Cap Corp Xi 0.3% Trimmed 29% 1,918,525 $33.5M
Stellar Bancorp Inc 0.3% Unchanged 812,216 $31.9M
Super Micro Computer Inc 0.3% New 570,680 $29.2M
International Money Express 0.3% Added 4.4% 2,008,234 $29M
CC Churchill Cap Corp Xii 0.3% New 2,700,000 $28.8M
DM Drugs Made In Amer Acq Ii Co 0.2% Unchanged 2,700,000 $27.2M
Leggett & Platt Inc 0.2% New 2,263,253 $26.5M
Nextera Energy Inc 0.2% Added 22% 550,000 $26.3M
AC Axalta Coating Sys Ltd 0.2% Added 0.8% 747,203 $25.6M
EV Eqv Ventures Ac Corp. Ii 0.2% Unchanged 2,499,993 $25.4M
GC General Catalyst Gbl Resil M 0.2% New 2,500,000 $25.2M
Liberty Broadband Corp 0.2% Added 1.6% 735,491 $24.5M
RP Rithm Ppty Tr Inc 0.2% Unchanged 1,639,033 $23.6M
Titan Acquisition Corp 0.2% Unchanged 2,200,000 $22.9M
Talkspace Inc 0.2% Added 2.1% 4,349,317 $22.6M
Collective Acquisition Corp 0.2% New 2,178,000 $21.6M
LT Launch Two Acquisition Corp. 0.2% Unchanged 1,980,000 $21.2M
Launch One Acquisition Corp 0.2% Unchanged 1,945,196 $21.1M
VI Veeco Instrs Inc Del 0.2% Trimmed 78% 277,389 $21M
Rithm Acquisition Corp 0.2% Unchanged 1,980,000 $20.7M

Showing top 60 of 1134 positions.

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed August 14, 2026

Company Action Shares changed Value of change % of portfolio
Coreweave Inc Trimmed −16,503,467 −$1.64B 47.3%
AL Air Lease Corp Exited −1,342,230 −$87.2M
Dominion Energy Inc New +1,219,394 +$83.3M 0.8%
Proassurance Corp Exited −3,246,435 −$80.3M
Masimo Corp Exited −427,081 −$76M
Alphabet Inc New +1,496,367 +$75.5M 0.7%
VI Veeco Instrs Inc Del Trimmed −989,237 −$75M 0.2%
Roku Inc Added +503,435 +$69.5M 0.6%
CS Csg Sys Intl Inc Exited −807,431 −$64.5M
Firstenergy Corp New +56,500,000 +$61.7M 0.6%

Showing the 10 largest of 1326 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 13, 2026

Company Action Shares changed Value of change % of portfolio
Comerica Inc Exited −1,139,969 −$99.1M
Rev Group Inc Exited −1,608,032 −$97.8M
FC Frontier Communications Pare Exited −2,343,223 −$89.2M
Cyberark Software Ltd Exited −199,487 −$89M
Tegna Inc Exited −4,355,886 −$84.5M
Avidity Biosciences Inc Exited −1,158,603 −$83.6M
Penumbra Inc New +251,433 +$82.6M 0.8%
C Confluent Inc Exited −2,630,482 −$79.5M
WF Webster Finl Corp Added +1,129,140 +$78.4M 0.8%
Allied Gold Corp New +2,518,867 +$78.1M 0.8%

Showing the 10 largest of 1302 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 17, 2026

Company Action Shares changed Value of change % of portfolio
Coreweave Inc Trimmed −13,791,931 −$988M 47.8%
Comerica Inc New +1,139,969 +$99.1M 1.0%
Merus N V Exited −1,045,209 −$98.4M
Rev Group Inc New +1,608,032 +$97.8M 1.0%
K Kellanova Exited −1,143,169 −$93.8M
Warner Bros Discovery Inc New +3,183,153 +$91.7M 0.9%
Kenvue Inc New +5,263,903 +$90.8M 0.9%
Avidxchange Holdings Inc Exited −8,466,957 −$84.2M
Wns Holdings Ltd Exited −1,098,809 −$83.8M
Avidity Biosciences Inc New +1,158,603 +$83.6M 0.8%

Showing the 10 largest of 1160 changes.

Q3 2025

quarter ended September 30, 2025 · filed November 13, 2025

Company Action Shares changed Value of change % of portfolio
Coreweave Inc Trimmed −13,834,923 −$1.89B 68.0%
NS Norfolk Southn Corp New +358,330 +$108M 0.7%
Cyberark Software Ltd New +211,240 +$102M 0.6%
AL Air Lease Corp New +1,579,485 +$101M 0.6%
Merus N V New +1,045,209 +$98.4M 0.6%
D& Dun & Bradstreet Hldgs Inc Exited −10,636,170 −$96.7M
Springworks Therapeutics Inc Exited −2,052,642 −$96.5M
Blueprint Medicines Corp Exited −730,047 −$93.6M
SU Skechers U S A Inc Exited −1,416,775 −$89.4M
Ansys Inc Exited −251,751 −$88.4M

Showing the 10 largest of 1136 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 12, 2025

Company Action Shares changed Value of change % of portfolio
D& Dun & Bradstreet Hldgs Inc New +10,636,170 +$96.7M 0.5%
Springworks Therapeutics Inc New +2,052,642 +$96.5M 0.5%
Txnm Energy Inc New +1,650,082 +$93.3M 0.5%
Blueprint Medicines Corp Added +725,479 +$93M 0.5%
BR Beacon Roofing Supply Inc Exited −744,640 −$92.1M
SU Skechers U S A Inc New +1,416,775 +$89.4M 0.4%
DF Discover Finl Svcs Exited −507,338 −$86.6M
Veren Inc Exited −12,656,076 −$83.7M
Avidxchange Holdings Inc New +8,447,908 +$82.7M 0.4%
Paycor Hcm Inc Exited −3,672,360 −$82.4M

Showing the 10 largest of 1234 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 15, 2025

Company Action Shares changed Value of change % of portfolio
Coreweave Inc New +95,818,248 +$3.55B 46.7%
Sanofi Exited −3,340,317 −$161M
Elanco Animal Health Inc Trimmed −11,720,811 −$123M
BR Beacon Roofing Supply Inc New +744,640 +$92.1M 1.2%
Veren Inc New +12,656,076 +$83.7M 1.1%
Paycor Hcm Inc New +3,672,360 +$82.4M 1.1%
BD Becton Dickinson & Co Exited −349,469 −$79.3M
SM Summit Matls Inc Exited −1,563,121 −$79.1M
Hashicorp Inc Exited −2,245,271 −$76.8M
PH Playa Hotels & Resorts Nv New +4,969,952 +$66.2M 0.9%

Showing the 10 largest of 988 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 11, 2025

Company Action Shares changed Value of change % of portfolio
GM Globus Med Inc Trimmed −1,214,760 −$100M 0.4%
Mckesson Corp Trimmed −158,264 −$90.2M 0.1%
Stericycle Inc Exited −1,468,528 −$89.6M
SE Southwestern Energy Co Exited −12,420,468 −$88.3M
Axonics Inc Exited −1,190,335 −$82.8M
Sanofi Added +1,705,148 +$82.2M 3.7%
SM Summit Matls Inc New +1,563,121 +$79.1M 1.8%
Johnson & Johnson Exited −482,340 −$78.2M
AC Albertsons Cos Inc Exited −4,052,402 −$74.9M
Regeneron Pharmaceuticals Added +101,150 +$72.1M 1.8%

Showing the 10 largest of 811 changes.

Q3 2024

quarter ended September 30, 2024 · filed November 13, 2024

Company Action Shares changed Value of change % of portfolio
Novartis Ag Exited −1,305,446 −$139M
Zimmer Biomet Holdings Inc Trimmed −1,144,448 −$124M 0.4%
BD Becton Dickinson & Co Trimmed −371,052 −$89.5M 0.8%
Churchill Capital Corp Vii Exited −8,306,005 −$89.5M
AL Abbott Labs Trimmed −779,820 −$88.9M
Solventum Corp Trimmed −1,250,428 −$87.2M 0.4%
Westrock Co Exited −1,658,921 −$83.4M
K Kellanova New +997,792 +$80.5M 1.7%
Unitedhealth Group Inc Trimmed −127,000 −$74.3M 0.4%
Adma Biologics Inc Trimmed −3,672,183 −$73.4M

Showing the 10 largest of 749 changes.

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