Magnetar Financial LLC

13F Portfolio Filings

Most recent 13F
Q2 2026
13D/G filings
13D on 10 securities, 13G on 124 securities
Location
Evanston, IL
CIK
0001352851
All SEC filings
View on sec.gov
Holdings Value
Quarter Holdings Value ($000) Top Holdings Form Type Date Filed Filing ID
Q2 2026 1,134 10,958,895 CRWV, HPEPRC, WBS, KVUE 13F-HR 8/14/2026 000110465926096490
Q1 2026 1,130 9,844,500 CRWV, AL, GTLS, TXNM 13F-HR 5/13/2026 000110465926059841
Q4 2025 896 10,206,314 CRWV, GTLS, AL, TXNM 13F-HR 2/17/2026 000110465926015538
Q3 2025 853 16,504,569 CRWV, ALIBABA GROUP HLDG LTD, NSC, CYBR 13F-HR 11/13/2025 000110465925111094
Q2 2025 870 20,652,647 CRWV, DNB, SWTX, BPMC 13F-HR 8/12/2025 000110465925076542
Q1 2025 717 7,612,481 CRWV, K, BECN, DFS 13F-HR 5/15/2025 000110465925048974
Q4 2024 589 4,355,582 SNY, ELAN, JNPR, DFS 13F-HR 2/11/2025 000110465925011245
Q3 2024 507 4,617,003 ELAN, GMED, SNY, JNPR 13F-HR 11/13/2024 000110465924117644
Q2 2024 497 4,796,326 ZBH, NVS, BDX, SNY 13F-HR 8/14/2024 000110465924089338
Q1 2024 363 4,466,283 NVS, MDT, ZBH, SWN 13F-HR 5/15/2024 000110465924061615
Q4 2023 363 3,938,719 HUM, MRK, NVS, ACI 13F-HR 2/13/2024 000110465924017420
Q3 2023 435 3,918,400 MRK, ZBH, ACI, MDT 13F-HR 11/14/2023 000110465923117695
Q2 2023 476 4,561,590 ABT, NUVA, ACI, UNVR 13F-HR 8/11/2023 000110465923090167
Q1 2023 597 5,127,441 CVII, MCK, EHC, ABT 13F-HR 5/15/2023 000110465923060300
Q4 2022 767 5,905,454 CVII, IAA, AJRD, EHC 13F-HR 2/14/2023 000110465923021977
Q3 2022 1,356 7,210,665 CHNG, CVII, LHCG, BSX 13F-HR 11/14/2022 000110465922118236
Q2 2022 1,661 9,667,788 VAL, COHR, CHNG, SAFM 13F-HR 8/15/2022 000110465922091187
Q1 2022 1,308 9,372,221 CERN, COHR, ATVI, FHN 13F-HR 5/16/2022 000110465922061197
Q4 2021 1,351 9,963,929 CERN, COHR, CHNG, NUAN 13F-HR 2/14/2022 000110465922021718
Q3 2021 1,287 9,817,778 NUAN, KSU, COHR, PPD RESTATEMENT 1/14/2022 000110465922004250
Q2 2021 1,173 10,557,446 CMAX, ALXN, PRAH, COHR 13F-HR 8/6/2021 000110465921101274
Q1 2021 1,026 10,400,192 OPEN, PRAH, KSU, IPHI 13F-HR 5/14/2021 000110465921066503
Q4 2020 693 7,079,331 OPEN, IPHI, XLNX, WTW 13F-HR 2/12/2021 000110465921021320
Q3 2020 641 5,657,626 WTW, CCIVU, VAR, MXIM 13F-HR 11/16/2020 000110465920125506
Q2 2020 418 3,390,986 WTW, ETFC, WMGI, AMTD 13F-HR 8/14/2020 000110465920095283
Q1 2020 456 4,152,474 AGN, WTW, MLNX, CY 13F-HR 5/15/2020 000110465920062131
Q4 2019 524 4,792,920 AGN, WCG, CZR, AMTD 13F-HR 2/13/2020 000110465920019622
Q3 2019 470 3,932,325 AGN, WCG, WBC, CY 13F-HR 11/14/2019 000110465919063887
Q2 2019 435 4,996,167 WCG, FDC, WP, TSS 13F-HR 8/14/2019 000110465919045719
Q1 2019 417 3,885,099 FDC, WP, MLNX, RHT 13F-HR 5/15/2019 000110465919029638
Q4 2018 273 4,075,799 ARRS, TRCO, RHT, IDTI 13F-HR 2/14/2019 000110465919008413
Q3 2018 490 5,540,403 AET, COL, ESRX, EGN RESTATEMENT 2/14/2019 000110465919008422
Q2 2018 6 1,386,610 COL, AET, ESRX, ANDV NEW HOLDINGS 11/14/2018 000110465918068286
Q2 2018 479 5,175,506 NXPI, CAVM, RSPP, GPT 13F-HR 8/14/2018 000110465918051791
Q1 2018 3 838,934 COL, AET, ESRX NEW HOLDINGS 11/14/2018 000110465918068284
Q1 2018 9 987,794 TWX, NXPI, MON, NSM NEW HOLDINGS 8/14/2018 000110465918051798
Q1 2018 544 3,970,919 CSRA, MSCC, CAVM, VR 13F-HR 5/15/2018 000110465918033264
Q4 2017 2 543,106 COL, AET NEW HOLDINGS 11/14/2018 000110465918068282
Q4 2017 7 1,010,765 TWX, NXPI, MON, AT&T INC. calls NEW HOLDINGS 8/14/2018 000110465918051797
Q4 2017 665 4,062,666 CAVM, SNI, WGL, OA 13F-HR 2/14/2018 000110465918009444
Q3 2017 6 1,063,527 TWX, NXPI, COL, MON NEW HOLDINGS 8/14/2018 000110465918051796
Q3 2017 697 4,451,710 BCR, LVLT, RICE, SNI 13F-HR 11/14/2017 000110465917068147
Q2 2017 5 876,165 TWX, NXPI, MON, TWX puts NEW HOLDINGS 8/14/2018 000110465918051795
Q2 2017 763 5,639,088 RAI, LVLT, EEM puts, BCR 13F-HR 8/14/2017 000110465917051562
Q1 2017 2 446,338 NXPI, TWX NEW HOLDINGS 8/14/2018 000110465918051794
Q1 2017 3 285,769 RAI, LVLT, RAD NEW HOLDINGS 8/14/2017 000110465917051695
Q1 2017 698 6,288,049 SPY puts, RDSB, MBBYF, BEAV 13F-HR 5/15/2017 000110465917032587
Q4 2016 4 454,593 TWX, NXPI, TWX puts, TWX calls NEW HOLDINGS 8/14/2018 000110465918051793
Q4 2016 1 82,852 CAB NEW HOLDINGS 11/14/2017 000110465917068152
Q4 2016 5 351,496 HAR, WNR, RAD, HAR calls RESTATEMENT 8/14/2017 000110465917051569
Q4 2016 5 351,496 HAR, WNR, RAD, HAR calls NEW HOLDINGS 8/14/2017 000110465917051621
Q4 2016 1 130,488 SE NEW HOLDINGS 5/15/2017 000110465917032586
Q3 2016 2 69,827 RAD, RAD calls NEW HOLDINGS 8/14/2017 000110465917051694
Q3 2016 5 505,603 LNKD, WWAV, JOY, WWAV calls NEW HOLDINGS 2/14/2017 000110465917008905
Q3 2016 534 6,456,207 EEM puts, SPY puts, STJ, IYR puts 13F-HR 11/14/2016 000110465916156596
Q2 2016 2 118,603 RAD, RAD calls NEW HOLDINGS 8/14/2017 000110465917051575
Q2 2016 3 215,390 LNKD, LNKD calls, WWAV NEW HOLDINGS 2/14/2017 000110465917008902
Q2 2016 3 356,799 STJ, EMC, EMC puts NEW HOLDINGS 11/14/2016 000110465916156599
Q2 2016 343 5,330,221 EEM puts, SPY puts, ITC, BWP 13F-HR 8/15/2016 000110465916139585
Q1 2016 1 168,568 RAD NEW HOLDINGS 8/14/2017 000110465917051573
Q1 2016 2 407,055 EMC, EMC puts NEW HOLDINGS 11/14/2016 000110465916156600
Q1 2016 7 893,543 TWC, BXLT, CPGX, KLAC NEW HOLDINGS 8/15/2016 000110465916139589
Q1 2016 365 5,023,794 HOT, AGN, EEM puts, SNDK 13F-HR 5/16/2016 000110465916121185
Q4 2015 1 140,006 RAD NEW HOLDINGS 8/14/2017 000110465917051691
Q4 2015 3 427,549 EMC, EMC puts, VMW calls NEW HOLDINGS 11/14/2016 000110465916156604
Q4 2015 6 1,069,166 KLAC, AGN, KLAC puts, TWC NEW HOLDINGS 8/15/2016 000110465916139591
Q4 2015 11 1,000,776 SNDK, HOT, HNT, CVC NEW HOLDINGS 5/16/2016 000110465916121183
Q4 2015 323 5,871,522 BRCM, CB, CAM, BRCM puts 13F-HR 2/16/2016 000110465916097055
Q3 2015 1 98,417 HUM NEW HOLDINGS 8/15/2016 000110465916139592
Q3 2015 4 442,902 HNT, CVC, ODP, BHI NEW HOLDINGS 5/16/2016 000110465916121182
Q3 2015 14 3,047,170 CB, BRCM, CAM, PCP NEW HOLDINGS 2/16/2016 000110465916097068
Q3 2015 373 3,836,333 TWC, TK, ETP, TRP 13F-HR 11/16/2015 000110465915079074
Q2 2015 3 122,001 HUM puts, HUM, AET calls NEW HOLDINGS 8/15/2016 000110465916139594
Q2 2015 2 71,060 ODP, SPLS calls NEW HOLDINGS 5/16/2016 000110465916121181
Q2 2015 6 652,411 BRCM, ALTR, BRCM puts, AVGO calls NEW HOLDINGS 2/16/2016 000110465916097072
Q2 2015 7 770,717 OCR, TWC, * HALLIBURTON CO calls, HAL NEW HOLDINGS 11/16/2015 000110465915079076
Q2 2015 404 5,410,242 TK, BABA, HYG puts, TRP 13F-HR 8/14/2015 000110465915059813
Q1 2015 1 71,756 ODP NEW HOLDINGS 5/16/2016 000110465916121179
Q1 2015 1 63,847 BHI NEW HOLDINGS 11/16/2015 000110465915079077
Q1 2015 2 261,855 DTV, LO NEW HOLDINGS 8/14/2015 000110465915059815
Q1 2015 207 5,442,664 BABA, TK, TRP, EXH 13F-HR 5/15/2015 000110465915038468
Q4 2014 2 16,389 ODP, ODP calls NEW HOLDINGS 5/16/2016 000110465916121177
Q4 2014 2 172,221 T puts, T NEW HOLDINGS 8/14/2015 000110465915059816
Q4 2014 11 678,112 AGN, TRW, AGN puts, SPLS calls NEW HOLDINGS 5/15/2015 000110465915038469
Q4 2014 163 5,435,548 BABA, XLE puts, TRP, EXH 13F-HR 2/17/2015 000110465915010878
Q3 2014 2 158,022 T puts, T NEW HOLDINGS 8/14/2015 000110465915059817
Q3 2014 4 295,919 TWC, AGN calls, AGN, TWC calls NEW HOLDINGS 5/15/2015 000110465915038470
Q3 2014 11 642,530 THI, KMR, KMP, AMAT calls NEW HOLDINGS 2/17/2015 000110465915010875
Q3 2014 164 4,935,321 SHPG, TK, SHPG puts, EXH 13F-HR 11/14/2014 000110465914080740
Q2 2014 2 216,203 DTV, T puts NEW HOLDINGS 8/14/2015 000110465915059821
Q2 2014 2 158,322 TWC, TWC calls NEW HOLDINGS 5/15/2015 000110465915038471
Q2 2014 5 276,856 AGN calls, VRX calls, AMAT calls, AMAT NEW HOLDINGS 2/17/2015 000110465915010873
Q2 2014 9 557,316 COV, MNKKQ, QCOR puts, MNKKQ puts NEW HOLDINGS 11/14/2014 000110465914080747
Q2 2014 147 4,784,118 TK, EXH, WMB, SPY puts 13F-HR 8/14/2014 000110465914060609
Q1 2014 2 329,650 TWC calls, TWC NEW HOLDINGS 2/17/2015 000110465915010871
Q1 2014 1 21,595 UNS NEW HOLDINGS 11/14/2014 000110465914080749
Q1 2014 4 153,898 FRX, JOSB, EQU, FRX puts NEW HOLDINGS 8/14/2014 000110465914060615
Q1 2014 214 4,548,774 TK, APC calls, LAMR, S calls 13F-HR 5/15/2014 000110465914038884
Q4 2013 2 113,838 TWC puts, TWC NEW HOLDINGS 2/17/2015 000110465915010865
Q4 2013 1 20,648 UNS NEW HOLDINGS 11/14/2014 000110465914080748
Q4 2013 4 149,450 LEAP, LEAP puts, LSI, LBTYA puts NEW HOLDINGS 5/15/2014 000110465914038886
Q4 2013 209 4,569,099 TK, SLB calls, OIS calls, EOG puts 13F-HR 2/14/2014 000110465914010188
Q3 2013 3 103,242 LEAP puts, LEAP, LEAP calls NEW HOLDINGS 5/15/2014 000110465914038938
Q3 2013 9 115,143 HMA, LIFE, * NV ENERGY INC, LPS NEW HOLDINGS 2/14/2014 000110465914010181
Q2 2013 3 13,228 LEAP, LEAP calls, LEAP WIRELESS INTL INC NEW HOLDINGS 5/15/2014 000110465914038894
Q2 2013 7 156,874 LPS, LIFE, * NV ENERGY INC, * BELO CORP NEW HOLDINGS 2/14/2014 000110465914010161
Q1 2013 2 1,360 * U S AIRWAYS GROUP INC, * U S AIRWAYS GROUP INC puts NEW HOLDINGS 2/14/2014 000110465914010155
Additional filings from Magnetar Financial LLC that have since been restated

13D and 13G Filings

All 13D and 13G filings

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each security where the latest filing since 12/18/2024 is a 13D, newest first.

Issuer % of Class Filed
Comtech Telecommunications Corp /DE/ 13D/A
CMTL · 205826209
 42.8% 6/17/2026
Event 6/14/2026
International Money Express Inc. 13D/A
IMXI · 46005L101
 6.0% 9/11/2025
Event 9/9/2025
Under 5%, checked the "5 percent or less" box, or amended by a later filing (8)
Proassurance Corporation 13D/A
PRA · 74267C106
 0% 6/30/2026
Event 6/26/2026
Astria Therapeutics, Inc. 13D/A
ATXS · 04635X102
 0% 1/28/2026
Event 1/26/2026
Cross Country Healthcare, Inc. 13D/A
CCRN · 227483104
 4.98% 12/10/2025
Event 12/8/2025
E2open Parent Holdings, Inc. 13D/A
ETWO · 29788T103
 0% 8/6/2025
Event 8/4/2025
Faro Technologies Inc 13D/A
FARO · 311642102
 0% 7/24/2025
Event 7/22/2025
Radius Recycling, Inc. 13D/A
RDUS · 806882106
 0% 7/15/2025
Event 7/11/2025
Accolade, Inc. 13D/A
ACCD · 00437E102
 0% 4/10/2025
Event 4/8/2025
United Stainless & Alloy Products, Inc. 13D/A
USAP · 913837100
 0% 1/27/2025
Event 1/23/2025

124 other securities where the latest filing is a 13G, the newest filed 9/4/2026. View all