13F filer · CIK 1352851 ↗
Magnetar Financial LLC
You are looking at Q4 2021. See the latest, Q2 2026 →
Reported value
$9.96B
+1.5% on the quarter before
Positions
1,351
458 new · 394 sold out
Top 10
16.7%
of the value
Est. gain
+$110.5M
on stocks held all quarter
Est. return
+1.7%
on those stocks since Q3 2021
Positions as of Dec 31, 2021, 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, 32% of the reported value, each sized by its share, colored by what the fund did with it since Q3 2021. Striped tiles are options.
Largest buys
Since Q3 2021, 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.
- Cerner Corp~$181.8MAdded · 0.0% → 1.9%+1,957,861 shares
- Rogers Corp~$158.5MNew · 0.0% → 1.6%+580,689 shares
- Cmc Materials Inc~$150.9MNew · 0.0% → 1.5%+787,058 shares
- Vonage Hldgs Corp~$126.7MNew · 0.0% → 1.3%+6,095,121 shares
- Arena Pharmaceuticals Inc~$97.9MNew · 0.0% → 1.0%+1,053,882 shares
- Gcp Applied Technologies Inc~$87.9MNew · 0.0% → 0.9%+2,775,759 shares
- Veoneer Inc~$73.7MAdded · 0.2% → 0.9%+2,076,067 shares
- Pretium Res Inc~$54.3MNew · 0.0% → 0.5%+3,848,950 shares
- Pae Inc~$49.3MNew · 0.0% → 0.5%+4,962,031 shares
- Medtronic Plc~$40.7MAdded · 0.2% → 0.5%+392,991 shares
Largest sells
Since Q3 2021, 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.
- Kansas City Southern~$172.3MSold out · 1.8% → 0.0%−636,820 shares
- Ppd Inc~$167.4MSold out · 1.7% → 0.0%−3,578,360 shares
- Hill-Rom Hldgs Inc~$152.4MSold out · 1.6% → 0.0%−1,015,775 shares
- Acceleron Pharma Inc~$143.1MSold out · 1.5% → 0.0%−831,663 shares
- Vereit Inc~$131.1MSold out · 1.3% → 0.0%−2,898,067 shares
- Raven Inds Inc~$123.3MSold out · 1.3% → 0.0%−2,140,896 shares
- Five9~$123.0MSold out · 1.3% → 0.0%−770,008 shares
- Domtar Corp~$120.7MSold out · 1.2% → 0.0%−2,212,559 shares
- Lucid Group Inc~$94.2MCut · 0.9% → 0.4%−2,475,783 shares
- Kadmon Hldgs Inc~$86.0MSold out · 0.9% → 0.0%−9,871,249 shares
Holdings
As of Dec 31, 2021. Changes are in shares against Sep 30, 2021, so a price move alone never reads as a buy or a sale.
| Holding | Value | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cerner CorpCOM · shares +3,709% · price +31.7% | 1.9% | $186.7M | +$1.2M | ||||||||
| Coherent IncCOM · shares +1.7% · price +6.6% | 1.8% | $182.1M | +$11.0M | ||||||||
| Change Healthcare IncCOM · shares +16% · price +2.1% | 1.8% | $181.7M | +$3.2M | ||||||||
| Nuance Communications IncCOM · shares +1.6% · price +0.5% | 1.8% | $179.0M | +$891,874 | ||||||||
| Rogers CorpCOM · shares New | 1.6% | $158.5M | — | ||||||||
| Shaw Communications IncCL B CONV · shares +1.9% · price +4.6% | 1.6% | $157.8M | +$6.8M | ||||||||
| Athene Holding LtdCL A · shares −20% · price +21.0% | 1.6% | $156.5M | +$27.2M | ||||||||
| Welbilt IncCOM · shares +2.2% · price +2.3% | 1.6% | $155.5M | +$3.4M | ||||||||
| Sanderson Farms IncCOM · shares +2.2% · price +1.5% | 1.5% | $151.4M | +$2.2M | ||||||||
| Cmc Materials IncCOM · shares New | 1.5% | $150.9M | — | ||||||||
| Xilinx IncCOM · shares −38% · price +40.4% | 1.4% | $136.4M | +$39.3M | ||||||||
| Mgm Growth Pptys LlcCL A COM · shares +2.2% · price +6.7% | 1.3% | $133.0M | +$8.1M | ||||||||
| Pnm Res IncCOM · shares +2.2% · price −7.8% | 1.3% | $132.7M | −$11.0M | ||||||||
| Aerojet Rocketdyne Hldgs IncCOM · shares +2.2% · price +7.4% | 1.3% | $130.4M | +$8.8M | ||||||||
| Vonage Hldgs CorpCOM · shares New | 1.3% | $126.7M | — | ||||||||
| Magellan Health IncCOM NEW · shares +2.2% · price +0.5% | 1.2% | $118.0M | +$535,040 | ||||||||
| Peoples United Financial IncCOM · shares +1.5% · price +2.0% | 1.2% | $115.0M | +$2.2M | ||||||||
| Churchill Capital Corp ViiUNIT 99/99/9999 · shares 0% · price +1.4% | 1.1% | $110.8M | +$1.6M | ||||||||
| Ferro CorpCOM · shares +2.2% · price +7.3% | 1.1% | $110.5M | +$7.4M | ||||||||
| Arena Pharmaceuticals IncCOM NEW · shares New | 0.98% | $97.9M | — | ||||||||
| Kraton CorpCOM · shares +12% · price +1.5% | 0.96% | $95.4M | +$1.3M | ||||||||
| Veoneer IncCOM · shares +440% · price +4.2% | 0.91% | $90.4M | +$670,453 | ||||||||
| Gcp Applied Technologies IncCOM · shares New | 0.88% | $87.9M | — | ||||||||
| Intersect Ent IncCOM · shares +0.4% · price +0.4% | 0.70% | $70.2M | +$281,697 | ||||||||
| Atotech LtdCOM · shares −0.5% · price +5.7% | 0.69% | $68.4M | +$3.7M | ||||||||
| Total · 1,351 positions | 100% | $9.96B | +$110.5M |
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 2021 to Q4 2021: 875 stocks held throughout, up $110.5M (+1.7%).
- Xilinx Inc+$39.3M+40%
- Athene Holding Ltd+$27.2M+21%
- Lucid Group Inc+$13.3M+50%
- Coherent Inc+$11.0M+7%
- Aerojet Rocketdyne Hldgs Inc+$8.8M+7%
- Multiplan Corporation−$5.1M−21%
- Evolv Technologies Hldngs In−$5.4M−26%
- Sportsmans Whse Hldgs Inc−$9.2M−33%
- Pnm Res Inc−$11.0M−8%
- Golden Nugget Online Gamin−$25.2M−43%
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 ↗ |