Magnetar Financial LLC — 13F Holdings & Portfolio
CIK 1352851 · latest 13F-HR filed 2026-08-14
Magnetar Financial LLC manages $10.96B in 13F-reported U.S. long-equity assets across 1,713 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are CRWV (47.26%), HPEPC (0.59%), JD (0.56%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 496 new positions and exited 492; 259 existing positions rose in reported value and 189 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
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AUM
$10.96B
Long-equity book
Holdings
1,713
Distinct positions
Period
2026-06-30
Filed 2026-08-14
Q/Q Activity
+496 / −492 / ↑259 / ↓189
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q2 26CRWV47.3% · -24%HPEPC0.8% · -18%WBS0.8% · +2%KVUE0.8% · +0%GTLS0.8% · -0%NSC0.8% · 0%JD0.8% · +16%D0.8% · newTXNM0.8% · -2%PEN0.7% · +2%TECK0.7% · -11%MCHPP0.7% · -4%GOOGM0.7% · newBABAF0.7% · +93%WBD0.7% · -9%ROKU0.6% · +13812%DBRG0.6% · -2%ORCLPD0.6% · +119%FE0.6% · newTRPCF0.5% · -16%GME0.5% · newNSA0.5% · +1%SLAB0.5% · +2%TECH0.5% · newAPGE0.5% · newCZR0.5% · newRAMP0.5% · newQRVO0.5% · +1%PAYO0.5% · +53873%AAUC0.5% · -16%BRKRP0.4% · newWTRG0.4% · +4%NOVTU0.4% · +40%LNT0.4% · newUNF0.4% · +2%ACA0.4% · newSKYT0.4% · +1%OGN0.3% · newPCG0.3% · -38%VAL0.3% · +1%CCXI0.3% · -29%STEL0.3% · 0%SMCIP0.3% · newIMXI0.3% · +4%CXII0.3% · newDMII0.2% · 0%LEG0.2% · newNEEPV0.2% · +22%AXTA0.2% · +1%EVAC0.2% · 0%GCGR0.2% · newLBRDK0.2% · +2%RPT0.2% · 0%TACH0.2% · 0%TALK0.2% · +2%CAII0.2% · newLPBB0.2% · 0%LPAA0.2% · 0%VECO0.2% · -78%RAC0.2% · 0%
Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.
Sector mix
% of 13F valueSectors from each company's SIC code; funds and ETFs grouped separately.
Biggest buys and sells
Q1 26 → Q2 26Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.
13F assets and positions
4 quartersTotal reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.
Top positions over time
reported valueThe eight largest current positions, valued at each quarter end.
Concentration
top 10 = 54.4%Cumulative share of the portfolio held in the largest N positions.
Firm Profile & Key People
As of the firm’s regulatory filing dated Aug 5, 2026.
Assets Under Management
$31.99B
Discretionary
$30.75B
Employees
209
Accounts
72
Address
1603 ORRINGTON AVENUE
13TH FLOOR
EVANSTON, IL 60201
13TH FLOOR
EVANSTON, IL 60201
Phone
(847) 905-4400
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| HARRIS, LAVONNE, ELAINE Control | CO-CHIEF OPERATING OFFICER & CHIEF FINANCIAL OFFICER, FUNDS since Apr 2023 | Less than 5% | Individual |
| LASER, ROSS Control | PRESIDENT since Apr 2005 | Less than 5% | Individual |
| MAGNETAR CAPITAL PARTNERS LP Control | SOLE MEMBER since Apr 2005 | 75% or more | Domestic Entity |
| SHERWOOD, THOMAS, MICHAEL Control | CO-CHIEF OPERATING OFFICER since Jun 2025 | Less than 5% | Individual |
| SNYDERMAN, DAVID, JAY Control | CHIEF EXECUTIVE OFFICER since Oct 2022 | Less than 5% | Individual |
| STEIN, HAYLEY, A. Control | CHIEF COMPLIANCE OFFICER since Jan 2025 | Less than 5% | Individual |
| WACHTER, KARL, J Control | GENERAL COUNSEL since Apr 2010 | Less than 5% | Individual |
| Raschke, Nathan, Andrew | CHIEF FINANCIAL OFFICER, MANAGEMENT COMPANY since Jun 2025 | Less than 5% | Individual |
| LASER, ROSS Control Indirect owner via SUPERNOVA MANAGEMENT LLC | MEMBER / MANAGER since Apr 2006 | 25–50% | Individual |
| SNYDERMAN, DAVID, JAY Control Indirect owner via SUPERNOVA MANAGEMENT LLC | MEMBER / MANAGER since Nov 2022 | 25–50% | Individual |
| SUPERNOVA MANAGEMENT LLC Control Indirect owner via MAGNETAR CAPITAL PARTNERS LP | GENERAL PARTNER since Apr 2006 | General partner, trustee or manager | Domestic Entity |
| LITOWITZ, ALEC Indirect owner via SUPERNOVA MANAGEMENT LLC | MEMBER since Apr 2006 | 25–50% | Individual |
| LL NOVA INVESTMENTS LLC Indirect owner via MAGNETAR CAPITAL PARTNERS LP | LIMITED PARTNER since Apr 2006 | 25–50% | Domestic Entity |
Ownership & leadership changes · 17 filings with changes since Mar 30, 2012
From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.
Jun 5, 2025 filing
- No longer listedDamrat, Jessica, L · CHIEF FINANCIAL OFFICER, MANAGEMENT COMPANY · Less than 5% · listed since Apr 2023
- No longer listedROGERS, ERNEST, ROLLAND · CHIEF OPERATING OFFICER · Less than 5% · control person · listed since Oct 2016
- AddedRaschke, Nathan, Andrew · CHIEF FINANCIAL OFFICER, MANAGEMENT COMPANY · Less than 5%
- AddedSHERWOOD, THOMAS, MICHAEL · CO-CHIEF OPERATING OFFICER · Less than 5% · control person
- ChangedHARRIS, LAVONNE, ELAINE · title CHIEF FINANCIAL OFFICER, FUNDS → CO-CHIEF OPERATING OFFICER & CHIEF FINANCIAL OFFICER, FUNDS; now a control person
Mar 28, 2025 filing
- No longer listedGUNASEKARAN, NAOMI · CHIEF FINANCIAL OFFICER, LIQUID STRATEGIES · Less than 5% · listed since Apr 2023
- ChangedHARRIS, LAVONNE, ELAINE · title CHIEF FINANCIAL OFFICER, ALTERNATIVE CREDIT & FIXED INCOME → CHIEF FINANCIAL OFFICER, FUNDS
Jan 9, 2025 filing
- No longer listedTURRO, MICHAEL · CHIEF COMPLIANCE OFFICER · Less than 5% · control person · listed since Jun 2005
- AddedSTEIN, HAYLEY, A. · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
Mar 28, 2024 filing
- No longer listedSMITH, PAUL · CHIEF LEGAL OFFICER · Less than 5% · control person · listed since Mar 2010
- No longer listedSettles, Steven, T · CHIEF FINANCIAL OFFICER, ENERGY & INFRASTRUCTURE · Less than 5% · listed since Apr 2023
- ChangedGUNASEKARAN, NAOMI · title CHIEF FINANCIAL OFFICER, SYSTEMATIC INVESTING → CHIEF FINANCIAL OFFICER, LIQUID STRATEGIES
Apr 26, 2023 filing
- AddedDamrat, Jessica, L · CHIEF FINANCIAL OFFICER, MANAGEMENT COMPANY · Less than 5%
- AddedGUNASEKARAN, NAOMI · CHIEF FINANCIAL OFFICER, SYSTEMATIC INVESTING · Less than 5%
- AddedHARRIS, LAVONNE, ELAINE · CHIEF FINANCIAL OFFICER, ALTERNATIVE CREDIT & FIXED INCOME · Less than 5%
- AddedSettles, Steven, T · CHIEF FINANCIAL OFFICER, ENERGY & INFRASTRUCTURE · Less than 5%
- ChangedROGERS, ERNEST, ROLLAND · title CHIEF FINANCIAL OFFICER / CHIEF OPERATING OFFICER → CHIEF OPERATING OFFICER
Jan 6, 2023 filing
- ChangedSNYDERMAN, DAVID, JAY · indirect via SUPERNOVA MANAGEMENT LLC: title MEMBER → MEMBER / MANAGER
Jan 3, 2023 filing
- ChangedLITOWITZ, ALEC · indirect via SUPERNOVA MANAGEMENT LLC: ownership 50–75% → 25–50%; no longer a control person
- ChangedLL NOVA INVESTMENTS LLC · indirect via MAGNETAR CAPITAL PARTNERS LP: no longer a control person
- ChangedSNYDERMAN, DAVID, JAY · indirect via SUPERNOVA MANAGEMENT LLC: title MANAGER → MEMBER; ownership General partner, trustee or manager → 25–50%
Nov 4, 2022 filing
- No longer listedLITOWITZ, ALEC · CHIEF EXECUTIVE OFFICER · Less than 5% · control person · listed since Apr 2005
- No longer listedMAGNETAR CAPITAL PARNTERS LP · SOLE MEMBER · 75% or more · control person · listed since Apr 2005
- AddedSNYDERMAN, DAVID, JAY · MANAGER · General partner, trustee or manager · indirect via SUPERNOVA MANAGEMENT LLC · control person
- Listed againMAGNETAR CAPITAL PARTNERS LP · SOLE MEMBER · 75% or more · control person
- ChangedLASER, ROSS · indirect via SUPERNOVA MANAGEMENT LLC: title MEMBER → MEMBER / MANAGER
- ChangedSNYDERMAN, DAVID, JAY · title EXECUTIVE COMMITTEE MEMBER → CHIEF EXECUTIVE OFFICER
Apr 8, 2019 filing
- No longer listedPAULL, BENJAMIN, MICHAEL · CHIEF FINANCIAL OFFICER · Less than 5% · control person · listed since Jul 2016
- ChangedROGERS, ERNEST, ROLLAND · title CHIEF OPERATING OFFICER → CHIEF FINANCIAL OFFICER / CHIEF OPERATING OFFICER
Mar 29, 2018 filing
- No longer listedMAGNETAR CAPITAL PARTNERS LP · SOLE MEMBER · 75% or more · control person · listed since Apr 2005
- AddedMAGNETAR CAPITAL PARNTERS LP · SOLE MEMBER · 75% or more · control person
Older changes (8 more filings)
Nov 18, 2016 filing
- No longer listedFELDER, ERIC, JONATHAN · MANAGEMENT COMMITTEE MEMBER · Less than 5% · control person · listed since Jul 2015
- No longer listedSCHEYER, ERIC, JONATHAN · MANAGEMENT COMMITTEE MEMBER · Less than 5% · control person · listed since Apr 2005
- ChangedSNYDERMAN, DAVID, JAY · title MANAGEMENT COMMITTEE MEMBER → EXECUTIVE COMMITTEE MEMBER
Oct 10, 2016 filing
- No longer listedCARTER, MICHAEL, ANDREW · CHIEF OPERATING OFFICER · Less than 5% · control person · listed since Aug 2008
- AddedROGERS, ERNEST, ROLLAND · CHIEF OPERATING OFFICER · Less than 5% · control person
Jul 1, 2016 filing
- No longer listedFOX, ANTHONY, EDWARD · CHIEF FINANCIAL OFFICER · Less than 5% · listed since May 2012
- AddedPAULL, BENJAMIN, MICHAEL · CHIEF FINANCIAL OFFICER · Less than 5% · control person
Mar 29, 2016 filing
- No longer listedSNYDERMAN, DAVID, JAY · MANAGEMENT COMMITTEE MEMBER · 25–50% · indirect via SUPERNOVA MANAGEMENTS LLC · control person · listed since Jul 2007
- ChangedLITOWITZ, ALEC · indirect via SUPERNOVA MANAGEMENT LLC: title MANAGER → MEMBER
- ChangedLL NOVA INVESTMENTS LLC · indirect via MAGNETAR CAPITAL PARTNERS LP: ownership 50–75% → 25–50%
Jul 16, 2015 filing
- AddedFELDER, ERIC, JONATHAN · MANAGEMENT COMMITTEE MEMBER · Less than 5% · control person
- AddedSNYDERMAN, DAVID, JAY · MANAGEMENT COMMITTEE MEMBER · 25–50% · indirect via SUPERNOVA MANAGEMENTS LLC · control person
Mar 28, 2014 filing
- AddedSCHEYER, ERIC, JONATHAN · MANAGEMENT COMMITTEE MEMBER · Less than 5% · control person
- AddedWACHTER, KARL, J · GENERAL COUNSEL · Less than 5% · control person
Aug 21, 2012 filing
- AddedFOX, ANTHONY, EDWARD · CHIEF FINANCIAL OFFICER · Less than 5%
- ChangedCARTER, MICHAEL, ANDREW · title CHIEF OPERATING OFFICER, CHIEF FINANCIAL OFFICER → CHIEF OPERATING OFFICER
Mar 30, 2012 filing (earliest on record)
- ListedCARTER, MICHAEL, ANDREW · CHIEF OPERATING OFFICER, CHIEF FINANCIAL OFFICER · Less than 5% · control person
- ListedLASER, ROSS · PRESIDENT · Less than 5% · control person
- ListedLASER, ROSS · MEMBER · 25–50% · indirect via SUPERNOVA MANAGEMENT LLC · control person
- ListedLITOWITZ, ALEC · MANAGER · 50–75% · indirect via SUPERNOVA MANAGEMENT LLC · control person
- ListedLITOWITZ, ALEC · CHIEF EXECUTIVE OFFICER · Less than 5% · control person
- ListedLL NOVA INVESTMENTS LLC · LIMITED PARTNER · 50–75% · indirect via MAGNETAR CAPITAL PARTNERS LP · control person
- ListedMAGNETAR CAPITAL PARTNERS LP · SOLE MEMBER · 75% or more · control person
- ListedSMITH, PAUL · CHIEF LEGAL OFFICER · Less than 5% · control person
- ListedSNYDERMAN, DAVID, JAY · MANAGEMENT COMMITTEE MEMBER · Less than 5% · control person
- ListedSUPERNOVA MANAGEMENT LLC · GENERAL PARTNER · General partner, trustee or manager · indirect via MAGNETAR CAPITAL PARTNERS LP · control person
- ListedTURRO, MICHAEL · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- COREWEAVE INC$437.3M +9.2%
- ROKU INC$69.7M +20210.3%
- PAYONEER GLOBAL INC$50.6M +79462.2%
- ORACLE CORP$34.3M +115.0%
- ALIBABA GROUP HLDG LTD$29.0M +63.7%
Top Trims
- ALLIED GOLD CORP-$28.0M -35.9%
- PG&E CORP-$23.6M -38.6%
- VEECO INSTRS INC DEL-$21.9M -51.0%
- TRIP COM GROUP LTD-$13.9M -19.4%
- LIBERTY BROADBAND CORP-$11.9M -32.8%
New Positions
- DOMINION ENERGY INC$83.3M
- ALPHABET INC$75.5M
- FIRSTENERGY CORP$61.7M
- GAMESTOP CORP$56.8M
- BIO-TECHNE CORP$53.8M
Exited Positions
- AIR LEASE CORP$87.2M
- PROASSURANCE CORP$80.3M
- MASIMO CORP$76.0M
- CSG SYS INTL INC$64.5M
- AMICUS THERAPEUTIC$57.6M
Magnetar Financial LLC Holdings (2026-06-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | COREWEAVE INC | CRWV | 21873S108 | $5.18B | 47.26% | 52,062,927 | SH |
| 2 | HEWLETT PACKARD ENTERPRISE C | HPEPC | 42824C208 | $65.0M | 0.59% | 555,276 | SH |
| 3 | JD.COM INC | JD | 47215PAJ5 | $61.8M | 0.56% | 62,842,000 | PRN |
| 4 | KENVUE INC | KVUE | 49177J102 | $60.9M | 0.56% | 3,189,035 | SH |
| 5 | WEBSTER FINL CORP | WBS | 947890109 | $60.7M | 0.55% | 793,833 | SH |
| 6 | CHART INDS INC | GTLS | 16115Q308 | $60.2M | 0.55% | 288,061 | SH |
| 7 | ALPHABET INC | GOOGM | 02079K404 | $59.2M | 0.54% | 1,173,731 | SH |
| 8 | NORFOLK SOUTHN CORP | NSC | 655844108 | $58.8M | 0.54% | 186,836 | SH |
| 9 | DOMINION ENERGY INC | D | 25746U109 | $57.8M | 0.53% | 846,088 | SH |
| 10 | TXNM ENERGY INC | TXNM | 69349H107 | $56.4M | 0.51% | 993,884 | SH |
| 11 | PENUMBRA INC | PEN | 70975L107 | $56.3M | 0.51% | 178,318 | SH |
| 12 | ALIBABA GROUP HLDG LTD | BABAF | 01609WBG6 | $56.1M | 0.51% | 47,570,000 | PRN |
| 13 | TECK RESOURCES LTD | TECK | 878742204 | $54.4M | 0.50% | 914,492 | SH |
| 14 | WARNER BROS DISCOVERY INC | WBD | 934423104 | $51.5M | 0.47% | 1,932,537 | SH |
| 15 | MICROCHIP TECHNOLOGY INC. | MCHPP | 595017302 | $51.0M | 0.47% | 662,455 | SH |
| 16 | ORACLE CORP | ORCLPD | 68389X204 | $50.3M | 0.46% | 1,118,180 | SH |
| 17 | ROKU INC | ROKU | 77543R102 | $48.3M | 0.44% | 349,403 | SH |
| 18 | DIGITALBRIDGE GROUP INC | DBRG | 25401T603 | $46.9M | 0.43% | 2,971,134 | SH |
| 19 | TRIP COM GROUP LTD | TRPCF | 89677QAB3 | $43.9M | 0.40% | 44,473,000 | PRN |
| 20 | FIRSTENERGY CORP | FE | 337932AT4 | $43.2M | 0.39% | 39,515,000 | PRN |
| 21 | NATIONAL STORAGE AFFILIATES | NSA | 637870106 | $37.9M | 0.35% | 852,748 | SH |
| 22 | GAMESTOP CORP | GME | 36467WAE9 | $37.8M | 0.34% | 36,976,000 | PRN |
| 23 | SILICON LABORATORIES INC | SLAB | 826919102 | $37.4M | 0.34% | 171,317 | SH |
| 24 | BIO-TECHNE CORP | TECH | 09073M104 | $37.1M | 0.34% | 524,994 | SH |
| 25 | ESSENTIAL UTILS INC | WTRG | 29670G102 | $36.7M | 0.34% | 959,086 | SH |
| 26 | APOGEE THERAPEUTICS INC | APGE | 03770N101 | $36.5M | 0.33% | 275,015 | SH |
| 27 | LIVERAMP HLDGS INC | RAMP | 53815P108 | $36.0M | 0.33% | 957,386 | SH |
| 28 | QORVO INC | QRVO | 74736K101 | $35.9M | 0.33% | 385,399 | SH |
| 29 | PAYONEER GLOBAL INC | PAYO | 70451X104 | $34.9M | 0.32% | 4,899,059 | SH |
| 30 | CAESARS ENTERTAINMENT INC NE | CZR | 12769G100 | $34.6M | 0.32% | 1,145,249 | SH |
| 31 | ALLIED GOLD CORP | AAUC | 01921D204 | $34.1M | 0.31% | 1,436,801 | SH |
| 32 | CHURCHILL CAP CORP XI | CCXI | G2131A108 | $33.5M | 0.31% | 1,918,525 | SH |
| 33 | UNIFIRST CORP MASS | UNF | 904708104 | $32.1M | 0.29% | 121,275 | SH |
| 34 | ARCOSA INC | ACA | 039653100 | $31.7M | 0.29% | 217,927 | SH |
| 35 | ALLIANT ENERGY CORP | LNT | 018802AE8 | $31.0M | 0.28% | 28,323,000 | PRN |
| 36 | SKYWATER TECHNOLOGY INC | SKYT | 83089J108 | $29.1M | 0.27% | 835,465 | SH |
| 37 | CHURCHILL CAP CORP XII | CXII | G2131M102 | $28.8M | 0.26% | 2,700,000 | SH |
| 38 | NORFOLK SOUTHN CORP | NSC | 655844108 | $27.8M | 0.25% | 88,379 | SH |
| 39 | WEBSTER FINL CORP | WBS | 947890109 | $27.7M | 0.25% | 362,865 | SH |
| 40 | KENVUE INC | KVUE | 49177J102 | $27.3M | 0.25% | 1,426,309 | SH |
| 41 | CHART INDS INC | GTLS | 16115Q308 | $27.2M | 0.25% | 130,249 | SH |
| 42 | DRUGS MADE IN AMER ACQ II CO | DMII | G2851K104 | $27.2M | 0.25% | 2,700,000 | SH |
| 43 | ORGANON & CO | OGN | 68622V106 | $26.5M | 0.24% | 1,957,077 | SH |
| 44 | TXNM ENERGY INC | TXNM | 69349H107 | $25.8M | 0.24% | 454,336 | SH |
| 45 | DOMINION ENERGY INC | D | 25746U109 | $25.5M | 0.23% | 373,306 | SH |
| 46 | EQV VENTURES AC CORP. II | EVAC | G3106Q102 | $25.4M | 0.23% | 2,499,993 | SH |
| 47 | NOVANTA INC | NOVTU | 67000B203 | $25.4M | 0.23% | 371,388 | SH |
| 48 | GENERAL CATALYST GBL RESIL M | GCGR | G3793T104 | $25.2M | 0.23% | 2,500,000 | SH |
| 49 | BRUKER CORP | BRKRP | 116794207 | $25.0M | 0.23% | 55,918 | SH |
| 50 | VALARIS LTD | VAL | G9460G101 | $24.9M | 0.23% | 342,552 | SH |
Filing History
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $10.96B | 1,713 | 0001104659-26-096490 |
| 2026-03-31 | 2026-05-13 | $9.84B | 1,755 | 0001104659-26-059841 |
| 2025-12-31 | 2026-02-17 | $10.21B | 1,486 | 0001104659-26-015538 |
| 2025-09-30 | 2025-11-13 | $16.50B | 1,474 | 0001104659-25-111094 |
Filer Information
Address
1603 ORRINGTON AVE.13TH FLOOR
EVANSTON, IL 60201
Phone
(847) 905-4400
Filing Manager
Magnetar Financial LLC
EVANSTON, IL
Signatory
Hayley Stein
Chief Compliance Officer