7 institutions reported holding $109.7M of WELLTOWER INC NT 3.100 percent 01/15/30 B/E DTD 08/19/19 CLB (WELL-PI) in SEC 13F filings for 2026-03-31. Largest institutional holders: NATIONAL BANK OF CANADA /FI/ ($66.2M), IMC-Chicago, LLC ($29.3M), SIMPLEX TRADING, LLC ($5.6M), GROUP ONE TRADING LLC ($4.6M), MASSACHUSETTS FINANCIAL SERVICES CO /MA/ ($3.9M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | NATIONAL BANK OF CANADA /FI/ | $66.2M | 3,350 | New |
| 2 | IMC-Chicago, LLC | $29.3M | 148,400 | Trimmed |
| 3 | SIMPLEX TRADING, LLC | $5.6M | 28,100 | Trimmed |
| 4 | GROUP ONE TRADING LLC | $4.6M | 23,400 | Trimmed |
| 5 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $3.9M | 1.2M | New |
| 6 | 10Elms LLP | $37,627 | 40,000 | Hold |
| 7 | McIlrath & Eck, LLC | $3,802 | 4,000 | New |
Source: SEC Form 13F filings · as of 2026-03-31