Institutions / Magnetar Financial LLC
Magnetar Financial LLC
CIK 1352851 · Institutionalso an insider · as of Mar 31, 2026
Portfolio value
$9.83B
Positions
1,129
As of
Mar 31, 2026
Portfolio trend
Portfolio value
$9.83B-3.4%Positions
1,129+26.1%Top holdings
Mar 31, 2026View all 1,129 →
| Company | Value | % of portfolio |
|---|---|---|
| CoreWeave, Inc. | $4.74B | 48.2% |
| Sumisho Air Lease Corp | $87.16M | 0.9% |
| Chart Industries Inc | $86.92M | 0.9% |
| Helix Acquisition Corp. III | $86.24M | 0.9% |
| Penumbra Inc | $82.56M | 0.8% |
| Warner Bros. Discovery, Inc. | $81.73M | 0.8% |
| ProAssurance Corp | $80.25M | 0.8% |
| Kenvue Inc. | $79.40M | 0.8% |
| Webster Financial Corp | $78.91M | 0.8% |
| Allied Gold Corp | $78.09M | 0.8% |
| Norfolk Southern Corp | $77.69M | 0.8% |
| Teck Resources Ltd | $77.51M | 0.8% |
| Masimo Corporation | $75.96M | 0.8% |
| Jd.com Inc | $74.56M | 0.8% |
| Trip Com Group Ltd | $71.59M | 0.7% |
| DigitalBridge Group, Inc. | $65.01M | 0.7% |
| CSG Systems International Inc | $64.55M | 0.7% |
| PG&E Corp | $61.25M | 0.6% |
| Hewlett Packard Enterprise C | $60.26M | 0.6% |
| Microchip Technology Inc. | $58.94M | 0.6% |
| Amicus Therapeutics Inc | $57.64M | 0.6% |
| Tri Pointe Homes, Inc. | $55.54M | 0.6% |
| Silicon Laboratories Inc | $51.17M | 0.5% |
| Essential Utilities, Inc. | $48.47M | 0.5% |
| Valaris Ltd | $47.77M | 0.5% |
Activity
Mar 31, 2026View full history →
InsidersInstitutions
This fund's 13F position changes — what it's buying and selling.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Q1 2026 as of | Exit | CMA Comerica Inc Common Stock | $-99.10M | -1.1M -100.00% | — | high |
| Q1 2026 as of | Exit | 749527107 | $-97.78M | -1.6M -100.00% | — | high |
| Q1 2026 as of | Exit | 35909D109 | $-89.21M | -2.3M -100.00% | — | high |
| Q1 2026 as of | Exit | M2682V108 | $-88.98M | -199K -100.00% | — | high |
| Q1 2026 as of | Exit | Tegna Inc | $-84.55M | -4.4M -100.00% | — | high |
| Q1 2026 as of | Exit | Avidity Biosciences, Inc. | $-83.57M | -1.2M -100.00% | — | high |
| Q1 2026 as of | New | Penumbra Inc | $82.56M | +251K | 251,433 0.84% of portfolio | high |
| Q1 2026 as of | Exit | Confluent, Inc. | $-79.55M | -2.6M -100.00% | — | high |
| Q1 2026 as of | Add | Webster Financial Corp | $78.38M | +1.1M +14912.04% | 1,136,712 0.80% of portfolio | high |
| Q1 2026 as of | New | 01921D204 | $78.09M | +2.5M | 2,518,867 0.79% of portfolio | high |
Insider transactions
Also files Forms 3 / 4 / 5
| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Apr 15, 2026 | Sell | CRWV CoreWeave, Inc. Class A Common Stock | $72.84M | -614K -2.79% | 21,438,957 3.89% of shares | high |
| Apr 22, 2026 | Sell | CRWV CoreWeave, Inc. Class A Common Stock | $45.21M | -370K -1.81% | 20,122,306 3.65% of shares | high |
| Apr 16, 2026 | Sell | CRWV CoreWeave, Inc. Class A Common Stock | $39.84M | -338K -1.59% | 20,950,288 3.80% of shares | high |
| May 6, 2026 | Sell | CRWV CoreWeave, Inc. Class A Common Stock | $37.98M | -278K -1.49% | 18,293,015 3.32% of shares | high |
| May 5, 2026 | Sell | CRWV CoreWeave, Inc. Class A Common Stock | $36.64M | -287K -1.51% | 18,746,301 3.40% of shares | high |
| Apr 15, 2026 | Sell | CRWV CoreWeave, Inc. Class A Common Stock | $36.63M | -309K -3.48% | 8,565,674 1.55% of shares | high |
| May 1, 2026 | Sell | CRWV CoreWeave, Inc. Class A Common Stock | $36.59M | -305K -1.54% | 19,518,227 3.54% of shares | high |
| Apr 15, 2026 | Sell | CRWV CoreWeave, Inc. Class A Common Stock | $31.16M | -263K -3.02% | 8,443,219 1.53% of shares | high |
| Apr 15, 2026 | Sell | CRWV CoreWeave, Inc. Class A Common Stock | $29.22M | -246K -3.91% | 6,051,480 1.10% of shares | high |
| May 7, 2026 | Sell | CRWV CoreWeave, Inc. Class A Common Stock | $27.53M | -212K -1.17% | 17,906,250 3.25% of shares | high |