13F filer · CIK 1352851 ↗
Magnetar Financial LLC
You are looking at Q4 2024. See the latest, Q2 2026 →
Reported value
$4.36B
−5.7% on the quarter before
Positions
589
333 new · 251 sold out
Top 10
21.4%
of the value
Est. gain
−$114.2M
on stocks held all quarter
Est. return
−5.5%
on those stocks since Q3 2024
Positions as of Dec 31, 2024, from Magnetar Financial LLC's 13F filing with the SEC. A 13F lists a manager's US-listed stocks and options at a quarter end and is filed up to 45 days later, so the fund may hold something else today. It leaves out short positions, cash and holdings outside the US.
Portfolio at a glance
- New
- Added
- Cut
- Same
- Options
The 24 largest positions, 41% of the reported value, each sized by its share, colored by what the fund did with it since Q3 2024. Striped tiles are options.
Largest buys
Since Q3 2024, by estimated size: the change in shares at the quarter-end price, since a 13F gives no trade prices. Percentages are the position's share of the portfolio, before and after.
- Sanofi~$82.2MAdded · 2.0% → 3.7%+1,705,148 shares
- Summit Matls Inc~$79.1MNew · 0.0% → 1.8%+1,563,121 shares
- Regeneron Pharmaceuticals~$72.1MAdded · 0.2% → 1.8%+101,150 shares
- Berry Global Group Inc~$71.9MNew · 0.0% → 1.7%+1,111,520 shares
- Interpublic Group Cos Inc~$67.4MAdded · 0.0% → 1.6%+2,406,073 shares
- Altair Engr Inc~$62.1MNew · 0.0% → 1.4%+569,534 shares
- Infinera Corp~$56.2MNew · 0.0% → 1.3%+8,560,095 shares
- Medtronic Plc~$55.0MAdded · 0.0% → 1.3%+688,073 shares
- Pactiv Evergreen Inc~$53.6MNew · 0.0% → 1.2%+3,070,686 shares
- Pg&E Corp~$47.7MNew · 0.0% → 1.1%+43,950,000 shares
Largest sells
Since Q3 2024, by estimated size: the change in shares at the quarter-end price, since a 13F gives no trade prices. Percentages are the position's share of the portfolio, before and after.
- Globus Medical~$100.5MCut · 2.2% → 0.4%−1,214,760 shares
- Mckesson Corp~$90.2MCut · 1.7% → 0.1%−158,264 shares
- Stericycle Inc~$89.6MSold out · 1.9% → 0.0%−1,468,528 shares
- Southwestern Energy Co~$88.3MSold out · 1.9% → 0.0%−12,420,468 shares
- Axonics Inc~$82.8MSold out · 1.8% → 0.0%−1,190,335 shares
- Johnson & Johnson~$78.2MSold out · 1.7% → 0.0%−482,340 shares
- Albertsons Cos Inc~$74.9MSold out · 1.6% → 0.0%−4,052,402 shares
- Catalent Inc~$63.0MSold out · 1.4% → 0.0%−1,039,517 shares
- Marathon Oil Corp~$61.8MSold out · 1.3% → 0.0%−2,319,281 shares
- Mcgrath Rentcorp~$53.1MSold out · 1.1% → 0.0%−504,291 shares
Holdings
As of Dec 31, 2024. Changes are in shares against Sep 30, 2024, so a price move alone never reads as a buy or a sale.
| Holding | Value | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| SanofiSPONSORED ADR · shares +104% · price −16.3% | 3.7% | $161.1M | −$15.4M | ||||||||
| Elanco Animal Health IncCOM · shares +14% · price −17.6% | 3.3% | $145.7M | −$27.3M | ||||||||
| Juniper Networks IncCOM · shares −8.7% · price −3.9% | 1.9% | $80.8M | −$3.3M | ||||||||
| Discover Finl SvcsCOM · shares −19% · price +23.5% | 1.8% | $80.3M | +$15.3M | ||||||||
| Becton Dickinson & CoCOM · shares +122% · price −5.9% | 1.8% | $79.3M | −$2.2M | ||||||||
| Summit Matls IncCL A · shares New | 1.8% | $79.1M | — | ||||||||
| Regeneron PharmaceuticalsCOM · shares +1,445% · price −32.2% | 1.8% | $77.0M | −$2.4M | ||||||||
| Hashicorp IncCOM CL A · shares +1.2% · price +1.0% | 1.8% | $76.8M | +$776,593 | ||||||||
| KellanovaCOM · shares −5.8% · price +0.3% | 1.7% | $76.1M | +$244,401 | ||||||||
| Teleflex IncorporatedCOM · shares +105% · price −28.0% | 1.7% | $75.0M | −$14.2M | ||||||||
| Ansys IncCOM · shares +0.8% · price +5.9% | 1.7% | $74.1M | +$4.1M | ||||||||
| Berry Global Group IncCOM · shares New | 1.7% | $71.9M | — | ||||||||
| Interpublic Group Cos IncCOM · shares +12,549% · price −11.4% | 1.6% | $68.0M | −$69,219 | ||||||||
| Thermo Fisher Scientific IncCOM · shares −2.1% · price −15.9% | 1.5% | $65.5M | −$12.4M | ||||||||
| Cooper Cos IncCOM · shares +20% · price −16.7% | 1.5% | $65.2M | −$10.9M | ||||||||
| Heartland Finl Usa IncCOM · shares −4.2% · price +8.1% | 1.5% | $64.5M | +$4.8M | ||||||||
| Championx CorporationCOM · shares +2.2% · price −9.8% | 1.5% | $63.7M | −$6.8M | ||||||||
| Frontier Communications PareCOM · shares +38% · price −2.3% | 1.4% | $62.9M | −$1.1M | ||||||||
| Altair Engr IncCOM CL A · shares New | 1.4% | $62.1M | — | ||||||||
| Amedisys IncCOM · shares +0.3% · price −5.9% | 1.3% | $57.9M | −$3.6M | ||||||||
| Infinera CorpCOM · shares New | 1.3% | $56.2M | — | ||||||||
| Medtronic PlcSHS · shares +13,636% · price −11.3% | 1.3% | $55.4M | −$51,217 | ||||||||
| Option Care Health IncCOM NEW · shares +23% · price −25.9% | 1.3% | $54.5M | −$15.5M | ||||||||
| Pactiv Evergreen IncCOM · shares New | 1.2% | $53.6M | — | ||||||||
| SeaNOTE 2.375%12/0 · shares +1.2% · price +5.7% | 1.2% | $52.9M | — | ||||||||
| Total · 589 positions | 100% | $4.36B | −$114.2M |
Price is a stock's reported value over its shares at the quarter end. The estimated gain is the shares held at both quarter ends times the change in that price: shares bought or sold during the quarter add nothing, options are left out, and a stock split is read into the earlier share count and price.
What made money
From Q3 2024 to Q4 2024: 234 stocks held throughout, down $114.2M (−5.5%).
- Discover Finl Svcs+$15.3M+23%
- Chart Inds Inc+$6.5M+42%
- Heartland Finl Usa Inc+$4.8M+8%
- Ansys Inc+$4.1M+6%
- Alphatec Hldgs Inc+$2.6M+65%
- Thermo Fisher Scientific Inc−$12.4M−16%
- Teleflex Incorporated−$14.2M−28%
- Sanofi−$15.4M−16%
- Option Care Health Inc−$15.5M−26%
- Elanco Animal Health Inc−$27.3M−18%
Estimated as in the holdings table: shares held at both quarter ends times the change in price; options left out.
Reported value by quarter
The total value of each quarter's 13F at that quarter end. It moves with prices as well as with buying and selling. Pick a quarter to see what the fund held then.
Every quarter's filing
| Quarter | Reported value | Filing | |
|---|---|---|---|
| Q2 2026 | Aug 14, 2026 | $10.96B+11% | SEC ↗ |
| Q1 2026 | May 13, 2026 | $9.84B−4% | SEC ↗ |
| Q4 2025 | Feb 17, 2026 | $10.21B−38% | SEC ↗ |
| Q3 2025 | Nov 13, 2025 | $16.50B−20% | SEC ↗ |
| Q2 2025 | Aug 12, 2025 | $20.65B+171% | SEC ↗ |
| Q1 2025 | May 15, 2025 | $7.61B+75% | SEC ↗ |
| Q4 2024 | Feb 11, 2025 | $4.36B−6% | SEC ↗ |
| Q3 2024 | Nov 13, 2024 | $4.62B−4% | SEC ↗ |
| Q2 2024 | Aug 14, 2024 | $4.80B+7% | SEC ↗ |
| Q1 2024 | May 15, 2024 | $4.47B+13% | SEC ↗ |
| Q4 2023 | Feb 13, 2024 | $3.94B+1% | SEC ↗ |
| Q3 2023 | Nov 14, 2023 | $3.92B−14% | SEC ↗ |
| Q2 2023 | Aug 11, 2023 | $4.56B−11% | SEC ↗ |
| Q1 2023 | May 15, 2023 | $5.13B−13% | SEC ↗ |
| Q4 2022 | Feb 14, 2023 | $5.91B−18% | SEC ↗ |
| Q3 2022 | Nov 14, 2022 | $7.21B−25% | SEC ↗ |
| Q2 2022 | Aug 15, 2022 | $9.67B+3% | SEC ↗ |
| Q1 2022 | May 16, 2022 | $9.37B−6% | SEC ↗ |
| Q4 2021 | Feb 14, 2022 | $9.96B+1% | SEC ↗ |
| Q3 2021 | Jan 14, 2022 (amended) | $9.82B−7% | SEC ↗ |
| Q2 2021 | Aug 6, 2021 | $10.56B+2% | SEC ↗ |
| Q1 2021 | May 14, 2021 | $10.40B+47% | SEC ↗ |
| Q4 2020 | Feb 12, 2021 | $7.08B+25% | SEC ↗ |
| Q3 2020 | Nov 16, 2020 | $5.66B+67% | SEC ↗ |
| Q2 2020 | Aug 14, 2020 | $3.39B−18% | SEC ↗ |
| Q1 2020 | May 15, 2020 | $4.15B−13% | SEC ↗ |
| Q4 2019 | Feb 13, 2020 | $4.79B+22% | SEC ↗ |
| Q3 2019 | Nov 14, 2019 | $3.93B−21% | SEC ↗ |
| Q2 2019 | Aug 14, 2019 | $5.00B+29% | SEC ↗ |
| Q1 2019 | May 15, 2019 | $3.89B−5% | SEC ↗ |
| Q4 2018 | Feb 14, 2019 | $4.08B−26% | SEC ↗ |
| Q3 2018 | Feb 14, 2019 (amended) | $5.54B−16% | SEC ↗ |
| Q2 2018 | Aug 14, 2018 (amended) | $6.56B+13% | SEC ↗ |
| Q1 2018 | May 15, 2018 (amended) | $5.80B+3% | SEC ↗ |
| Q4 2017 | Feb 14, 2018 (amended) | $5.62B+2% | SEC ↗ |
| Q3 2017 | Nov 14, 2017 (amended) | $5.52B−15% | SEC ↗ |
| Q2 2017 | Aug 14, 2017 (amended) | $6.52B−7% | SEC ↗ |
| Q1 2017 | May 15, 2017 (amended) | $7.02B+1,897% | SEC ↗ |
| Q4 2016 | Aug 14, 2017 (amended) | $351.5M−95% | SEC ↗ |
| Q3 2016 | Nov 14, 2016 (amended) | $7.03B+17% | SEC ↗ |
| Q2 2016 | Aug 15, 2016 (amended) | $6.02B−7% | SEC ↗ |
| Q1 2016 | May 16, 2016 (amended) | $6.49B | SEC ↗ |