13F filer · CIK 1352851 ↗
Magnetar Financial LLC
You are looking at Q2 2025. See the latest, Q2 2026 →
Reported value
$20.65B
+171% on the quarter before
Positions
870
536 new · 383 sold out
Top 10
79.6%
of the value
Est. gain
+$12.10B
on stocks held all quarter
Est. return
+239.2%
on those stocks since Q1 2025
Positions as of Jun 30, 2025, 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
Each tile is a position, sized by its share, colored by what the fund did with it since Q1 2025. Striped tiles are options.
Largest buys
Since Q1 2025, 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.
- Dun & Bradstreet Hldgs Inc~$96.7MNew · 0.0% → 0.5%+10,636,170 shares
- Springworks Therapeutics Inc~$96.5MNew · 0.0% → 0.5%+2,052,642 shares
- Txnm Energy Inc~$93.3MNew · 0.0% → 0.5%+1,650,082 shares
- Blueprint Medicines Corp~$93.0MAdded · 0.0% → 0.5%+725,479 shares
- Skechers U S A Inc~$89.4MNew · 0.0% → 0.4%+1,416,775 shares
- Avidxchange Holdings Inc~$82.7MNew · 0.0% → 0.4%+8,447,908 shares
- Alibaba~$65.4MNew · 0.0% → 0.3%+51,136,000 shares
- Faro Technologies Inc~$65.1MNew · 0.0% → 0.3%+1,483,329 shares
- E2open Parent Holdings Inc~$61.6MNew · 0.0% → 0.3%+19,058,482 shares
- Trip Com Group Ltd~$57.0MNew · 0.0% → 0.3%+51,425,000 shares
Largest sells
Since Q1 2025, 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.
- Beacon Roofing Supply Inc~$92.1MSold out · 1.2% → 0.0%−744,640 shares
- Discover Finl Svcs~$86.6MSold out · 1.1% → 0.0%−507,338 shares
- Veren Inc~$83.7MSold out · 1.1% → 0.0%−12,656,076 shares
- Paycor Hcm Inc~$82.4MSold out · 1.1% → 0.0%−3,672,360 shares
- Berry Global Group Inc~$78.1MSold out · 1.0% → 0.0%−1,118,266 shares
- Playa Hotels & Resorts Nv~$66.2MSold out · 0.9% → 0.0%−4,969,952 shares
- Intra-Cellular Therapies Inc~$57.5MSold out · 0.8% → 0.0%−435,715 shares
- FirstEnergy~$57.4MSold out · 0.8% → 0.0%−56,650,000 shares
- Pactiv Evergreen Inc~$55.6MSold out · 0.7% → 0.0%−3,084,826 shares
- H & E Equipment Services Inc~$48.6MSold out · 0.6% → 0.0%−512,725 shares
Holdings
As of Jun 30, 2025. Changes are in shares against Mar 31, 2025, so a price move alone never reads as a buy or a sale.
| Holding | Value | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| CoreWeaveCOM CL A · shares 0% · price +339.8% | 75.7% | $15.62B | +$12.07B | ||||||||
| Dun & Bradstreet Hldgs IncCOM · shares New | 0.47% | $96.7M | — | ||||||||
| Springworks Therapeutics IncCOM · shares New | 0.47% | $96.5M | — | ||||||||
| Blueprint Medicines CorpCOM · shares +15,882% · price +44.8% | 0.45% | $93.6M | +$181,212 | ||||||||
| Txnm Energy IncCOM · shares New | 0.45% | $93.3M | — | ||||||||
| Skechers U S A IncCL A · shares New | 0.43% | $89.4M | — | ||||||||
| KellanovaCOM · shares −1.3% · price −3.6% | 0.43% | $88.8M | −$3.3M | ||||||||
| Ansys IncCOM · shares −1.6% · price +10.9% | 0.43% | $88.4M | +$8.7M | ||||||||
| Juniper Networks IncCOM · shares −2.8% · price +10.3% | 0.41% | $83.8M | +$7.9M | ||||||||
| Avidxchange Holdings IncCOM · shares New | 0.40% | $82.7M | — | ||||||||
| Azek Co IncCL A · shares +108% · price +11.2% | 0.39% | $80.4M | +$3.9M | ||||||||
| Frontier Communications PareCOM · shares +0.4% · price +1.5% | 0.38% | $79.3M | +$1.2M | ||||||||
| Interpublic Group Cos IncCOM · shares +0.4% · price −9.9% | 0.35% | $72.1M | −$7.9M | ||||||||
| Liberty Broadband CorpCOM SER C · shares +1.4% · price +15.7% | 0.34% | $70.2M | +$9.4M | ||||||||
| Championx CorporationCOM · shares +0.4% · price −16.6% | 0.33% | $68.7M | −$13.7M | ||||||||
| Proassurance CorpCOM · shares +28% · price −2.2% | 0.33% | $67.5M | −$1.2M | ||||||||
| AlibabaNOTE 0.500% 6/0 · shares New | 0.32% | $65.4M | — | ||||||||
| Faro Technologies IncCOM · shares New | 0.32% | $65.1M | — | ||||||||
| Amedisys IncCOM · shares +1.0% · price +6.2% | 0.31% | $63.5M | +$3.7M | ||||||||
| E2open Parent Holdings IncCOM CL A · shares New | 0.30% | $61.6M | — | ||||||||
| Pg&E CorpNOTE 4.250%12/0 · shares +118% · price −6.2% | 0.29% | $60.6M | — | ||||||||
| Trip Com Group LtdNOTE 0.750% 6/1 · shares New | 0.28% | $57.0M | — | ||||||||
| Mr Cooper Group IncCOM · shares +1,179% · price +24.8% | 0.28% | $56.8M | +$881,757 | ||||||||
| Jd.Com IncNOTE 0.250% 6/0 · shares New | 0.24% | $50.0M | — | ||||||||
| Radius Recycling IncCL A · shares +156% · price +2.8% | 0.24% | $48.6M | +$518,388 | ||||||||
| Total · 870 positions | 100% | $20.65B | +$12.10B |
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 Q1 2025 to Q2 2025: 320 stocks held throughout, up $12.10B (+239.2%).
- CoreWeave+$12.07B+340%
- Liberty Broadband Corp+$9.4M+16%
- Ansys Inc+$8.7M+11%
- Redfin Corp+$8.4M+21%
- Juniper Networks Inc+$7.9M+10%
- Celestica Inc1:18 split−$3.0M−89%
- Kellanova−$3.3M−4%
- Cross Ctry Healthcare Inc−$4.6M−12%
- Interpublic Group Cos Inc−$7.9M−10%
- Championx Corporation−$13.7M−17%
Estimated as in the holdings table: shares held at both quarter ends times the change in price; options left out, 4 splits read into the share counts.
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 ↗ |