6 institutions reported holding $29.5M of ALCON INC (ACL) in SEC 13F filings for 2026-03-31. Largest institutional holders: Optiver Holding B.V. ($19.0M), JPMORGAN CHASE & CO ($6.6M), IMC-Chicago, LLC ($2.5M), SIMPLEX TRADING, LLC ($700,755), GROUP ONE TRADING LLC ($693,220). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Optiver Holding B.V. | $19.0M | 252,700 | Trimmed |
| 2 | JPMORGAN CHASE & CO | $6.6M | 90,200 | Trimmed |
| 3 | IMC-Chicago, LLC | $2.5M | 32,600 | Trimmed |
| 4 | SIMPLEX TRADING, LLC | $700,755 | 9,300 | Trimmed |
| 5 | GROUP ONE TRADING LLC | $693,220 | 9,200 | Trimmed |
| 6 | HUNTINGTON NATIONAL BANK | $168 | 1 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31