6 institutions reported holding $175.2M of HOWMET AEROSPACE INC (HWM-P) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($71.7M), GROUP ONE TRADING LLC ($39.8M), HRT FINANCIAL LP ($23.9M), RH Tailwind Management, LLC ($20.7M), SIMPLEX TRADING, LLC ($14.6M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $71.7M | 311,200 | Trimmed |
| 2 | GROUP ONE TRADING LLC | $39.8M | 172,600 | Added |
| 3 | HRT FINANCIAL LP | $23.9M | 103,600 | Added |
| 4 | RH Tailwind Management, LLC | $20.7M | 90,000 | Trimmed |
| 5 | SIMPLEX TRADING, LLC | $14.6M | 63,300 | Added |
| 6 | JPMORGAN CHASE & CO | $4.5M | 20,000 | New |
Source: SEC Form 13F filings · as of 2026-03-31