AVTR-PA — Avantor Inc Institutional Holders · Q2 2026
Who owns Avantor Inc (AVTR-PA)? 3 institutions reported holding $6.02M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Simplex Trading, LLC ($3.2M), Group One Trading LLC ($1.5M), IMC-Chicago, LLC ($1.4M).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $3.2M | 319,200 | Added |
| 2 | GROUP ONE TRADING LLC | $1.5M | 149,400 | Added |
| 3 | IMC-Chicago, LLC | $1.4M | 139,800 | Added |
Source: SEC Form 13F filings · as of 2026-06-30