CorMedix Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| Todisco Joseph | Chief Executive Officer | Sale | 30,000 | $12.00 | $360,000 | Dec 18, 2025 |
| Dillione Janet | — | Sale | 34,000 | $12.00 | $408,000 | Dec 9, 2025 |
| Lefkowitz Steven W | — | Sale | 40,000 | $11.88 | $475,200 | Dec 9, 2025 |
| Dillione Janet | — | Option Exercise | 19,323 | $3.55 | $68,597 | Dec 2, 2025 |
| Dillione Janet | — | Sale | 26,343 | $9.93 | $261,586 | Nov 24, 2025 |
| Dillione Janet | — | Sale | 30,000 | $11.42 | $342,600 | Nov 14, 2025 |
| Kaplan Myron | — | Purchase | 25,000 | $11.02 | $275,500 | Oct 23, 2025 |
| Duncan Gregory Scott | — | Option Exercise | 13,333 | $8.32 | $110,931 | Sep 16, 2025 |
| DUNTON ALAN W | — | Sale | 10,000 | $13.13 | $131,300 | Sep 12, 2025 |
| Todisco Joseph | Chief Executive Officer | Option Exercise | 50,000 | $3.47 | $173,500 | Sep 12, 2025 |
| Hurlburt Elizabeth | Chief Operating Officer | Sale | 41,121 | $13.08 | $537,863 | Sep 11, 2025 |
| Zelnick Kaufman Beth | Chief Legal Officer | Sale | 400 | $12.82 | $5,128 | Sep 9, 2025 |
| Hurlburt Elizabeth | Chief Operating Officer | Tax Withholding | 8,424 | $14.83 | $124,928 | Aug 29, 2025 |
| Zelnick Kaufman Beth | Chief Legal Officer | Tax Withholding | 8,880 | $14.83 | $131,690 | Aug 29, 2025 |
| Hurlburt Elizabeth | Chief Operating Officer | Award / Grant | 69,686 | — | — | Aug 29, 2025 |
| Zelnick Kaufman Beth | Chief Legal Officer | Award / Grant | 69,686 | — | — | Aug 29, 2025 |
| Blum Susan | Chief Financial Officer | Award / Grant | 69,686 | — | — | Aug 29, 2025 |
| Todisco Joseph | Chief Executive Officer | Tax Withholding | 21,225 | $11.66 | $247,484 | May 10, 2025 |
| Lefkowitz Steven W | — | Option Exercise | 20,000 | $4.03 | $80,600 | Apr 2, 2025 |
| Todisco Joseph | Chief Executive Officer | Option Exercise | 59,170 | $3.38 | $199,995 | Apr 1, 2025 |
| Todisco Joseph | Chief Executive Officer | Tax Withholding | 23,977 | $12.17 | $291,800 | Jan 17, 2025 |
| DUNTON ALAN W | — | Award / Grant | 25,000 | — | — | Jan 17, 2025 |
| Stewart Robert A | — | Award / Grant | 25,000 | — | — | Jan 17, 2025 |
| Dillione Janet | — | Award / Grant | 25,000 | — | — | Jan 17, 2025 |
| Kaplan Myron | — | Award / Grant | 25,000 | — | — | Jan 17, 2025 |
| Lefkowitz Steven W | — | Award / Grant | 25,000 | — | — | Jan 17, 2025 |
| Duncan Gregory Scott | — | Award / Grant | 25,000 | — | — | Jan 17, 2025 |
| David Matthew T | Chief Financial Officer | Tax Withholding | 6,515 | $11.19 | $72,903 | Jan 10, 2025 |
| Todisco Joseph | Chief Executive Officer | Tax Withholding | 17,829 | $11.19 | $199,507 | Jan 10, 2025 |
| Mistry Erin | EVP, Chief Commercial Officer | Tax Withholding | 5,689 | $11.19 | $63,660 | Jan 10, 2025 |
| Hurlburt Elizabeth | EVP | Tax Withholding | 5,790 | $11.19 | $64,790 | Jan 10, 2025 |
| Mistry Erin | EVP, Chief Commercial Officer | Tax Withholding | 7,830 | $8.22 | $64,363 | Jan 2, 2025 |
| Hurlburt Elizabeth | EVP | Award / Grant | 87,500 | — | — | Jan 2, 2025 |
| David Matthew T | Chief Financial Officer | Tax Withholding | 8,648 | $8.22 | $71,087 | Jan 2, 2025 |
| Zelnick Kaufman Beth | Chief Legal Officer | Award / Grant | 87,500 | — | — | Jan 2, 2025 |
| Zelnick Kaufman Beth | Chief Legal Officer | Tax Withholding | 6,044 | $8.77 | $53,006 | Dec 12, 2024 |
| Zelnick Kaufman Beth | Chief Legal Officer | Tax Withholding | 6,044 | $8.77 | $53,006 | Dec 12, 2024 |
| Hurlburt Elizabeth | EVP | Option Exercise | 3 | $1.45 | $4 | Nov 14, 2024 |
| Mistry Erin | EVP, Chief Commercial Officer | Purchase | 1,500 | $9.99 | $14,985 | Oct 31, 2024 |
| Todisco Joseph | Chief Executive Officer | Tax Withholding | 26,982 | $5.17 | $139,497 | May 10, 2024 |
| Todisco Joseph | Chief Executive Officer | Purchase | 13,561 | $3.74 | $50,718 | Mar 13, 2024 |
| Masson-Hurlburt Elizabeth | EVP, Head of Clinical Ops. | Award / Grant | 50,000 | — | — | Jan 12, 2024 |
| David Matthew T | Chief Financial Officer | Award / Grant | 50,000 | — | — | Jan 12, 2024 |
| Mistry Erin | Chief Commercial Officer | Award / Grant | 50,000 | — | — | Jan 12, 2024 |
| Todisco Joseph | Chief Executive Officer | Tax Withholding | 13,781 | $3.47 | $47,820 | Jan 12, 2024 |
| DUNTON ALAN W | — | Purchase | 3,000 | $3.30 | $9,900 | Dec 14, 2023 |
| Zelnick Kaufman Beth | Chief Legal Officer | Award / Grant | 50,000 | — | — | Dec 12, 2023 |
| Mistry Erin | Chief Commercial Officer | Purchase | 1,000 | $4.00 | $4,000 | Nov 17, 2023 |
| Lefkowitz Steven W | — | Option Exercise | 15,000 | $2.25 | $33,750 | Nov 16, 2023 |
| Todisco Joseph | Chief Executive Officer | Purchase | 10,000 | $3.71 | $37,100 | Sep 8, 2023 |