Data spanning the past 90 days through January 09, 2026 reveals that CorMedix's three principal insider shareholders consist of Chief Executive Officer Joseph Todisco (509.50K shares), Director Myron Kaplan (201.03K shares), Chief Legal Officer Kaufman Beth Zelnick (169.09K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Joseph Todisco | Chief Executive Officer | 509,496 | 19 Dec, 2025 |
| Myron Kaplan | 201,034 | 27 Oct, 2025 | |
| Kaufman Beth Zelnick | Chief Legal Officer | 169,085 | 06 Jan, 2026 |
| Elizabeth Hurlburt | Chief Operating Officer | 166,095 | 06 Jan, 2026 |
| Erin Mistry | Evp And Chief Commercial Officer | 100,992 | 14 Jan, 2025 |
| Matthew T David | Chief Financial Officer | 95,270 | 14 Jan, 2025 |
| Steven W Lefkowitz | 80,498 | 10 Dec, 2025 | |
| Susan Blum | Chief Financial Officer | 69,686 | 03 Sep, 2025 |
| Janet Dillione | 48,473 | 11 Dec, 2025 | |
| Alan W Dunton | 40,250 | 02 Jan, 2026 | |
| Gregory Scott Duncan | 38,333 | 18 Sep, 2025 | |
| Robert A Stewart | 36,000 | 22 Jan, 2025 | |
| Paulo F Costa | 10,000 | 18 May, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 02 Jan, 2026 | Elizabeth Hurlburt | Common Stock | D | 10,895 | $12.16 | 166,095 | D | F |
| 02 Jan, 2026 | Kaufman Beth Zelnick | Common Stock | D | 11,333 | $12.16 | 169,085 | D | F |
| 30 Dec, 2025 | Alan W Dunton | - | - | 60,250 | D | |||
| 30 Dec, 2025 | Alan W Dunton | Common Stock | A | 20,000 | $4.03 | 60,250 | D | M |
| 30 Dec, 2025 | Alan W Dunton | - | - | 40,250 | D | |||
| 30 Dec, 2025 | Alan W Dunton | Common Stock | D | 20,000 | $13.00 | 40,250 | D | S |
| 18 Dec, 2025 | Joseph Todisco | Common Stock | D | 30,000 | $12.00 | 509,496 | D | S |
| 18 Dec, 2025 | Joseph Todisco | - | - | 539,496 | D | |||
| 18 Dec, 2025 | Joseph Todisco | - | - | 509,496 | D | |||
| 18 Dec, 2025 | Joseph Todisco | Common Stock | A | 30,000 | $4.43 | 539,496 | D | M |
| 09 Dec, 2025 | Steven W Lefkowitz | Common Stock | D | 40,000 | $11.88 | 80,498 | D | S |
| 09 Dec, 2025 | Janet Dillione | - | - | 82,473 | D | |||
| 09 Dec, 2025 | Janet Dillione | Common Stock | A | 19,000 | $9.55 | 67,473 | D | M |
| 09 Dec, 2025 | Janet Dillione | - | - | 67,473 | D | |||
| 09 Dec, 2025 | Janet Dillione | Common Stock | D | 34,000 | $12.00 | 48,473 | D | S |
| 09 Dec, 2025 | Janet Dillione | Common Stock | A | 15,000 | $5.63 | 82,473 | D | M |
| 02 Dec, 2025 | Janet Dillione | - | - | 95,130 | D | |||
| 02 Dec, 2025 | Janet Dillione | Common Stock | D | 46,657 | $10.00 | 48,473 | D | S |
| 02 Dec, 2025 | Janet Dillione | Common Stock | A | 15,124 | $4.43 | 75,807 | D | M |
| 02 Dec, 2025 | Janet Dillione | Common Stock | A | 12,210 | $4.03 | 60,683 | D | M |