SEC Form 4 · Updated Daily
CRMD
— CORMEDIX INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Gelbfish Gary A. | Director | 2,654,871 | 2019-01-10 | A |
| PHARMABIO DEVELOPMENT INC | 10%+ Owner | 778,563 | 2012-04-12 | S |
| Todisco Joseph | Officer | 774,749 | 2026-02-04 | A |
| Hurlburt Elizabeth | Officer | 270,463 | 2026-08-29 | F |
| Zelnick Kaufman Beth | Officer | 260,684 | 2026-08-29 | F |
| MILBY RANDY | Director · Officer | 246,243 | 2016-08-09 | M |
| Kaplan Myron | Director | 231,487 | 2026-01-26 | A |
| TELLEZ CORA M | Director | 182,371 | 2017-05-30 | P |
| Khan Mehmood | Director | 178,767 | 2020-08-19 | P |
| ELLISON RUSSELL H | Director | 160,000 | 2010-03-30 | P |
| Seckler Michael David | Officer | 133,156 | 2026-01-08 | A |
| Lefkowitz Steven W | Director | 125,951 | 2026-01-26 | A |
| Blum Susan | Officer | 124,315 | 2026-08-29 | F |
| Dillione Janet | Director | 117,835 | 2026-09-18 | M |
| Mistry Erin | Officer | 100,992 | 2025-01-10 | F |
| ARMSTRONG JR. JOHN L. | Officer | 96,878 | 2020-08-14 | P |
| David Matthew T | Officer | 95,270 | 2025-01-10 | F |
| DUNTON ALAN W | Director | 70,703 | 2026-01-26 | A |
| Duncan Gregory Scott | Director | 68,786 | 2026-01-26 | A |
| Stewart Robert A | Director | 66,453 | 2026-01-26 | A |
| Baluch Khoso | Director · Officer | 60,905 | 2020-08-13 | P |
| Houser Mark T. | Officer | 52,832 | 2010-11-26 | P |
| Lefkowitz James | Director | 40,272 | 2011-12-15 | P |
| Markvicka Taunia | Director | 37,100 | 2017-05-15 | P |
| Duffy Matthew | Director | 28,571 | 2016-06-03 | S |
| Cook Robert W. | Officer | 27,517 | 2019-09-30 | P |
| Houghton John C. | Director · Officer | 17,328 | 2010-08-18 | P |
| LENZ BRIAN | Officer | 17,000 | 2011-12-14 | P |
| Costa Paulo F | Director | 10,000 | 2023-05-17 | P |
| GEORGE MICHAEL W | Director | 10,000 | 2017-05-15 | P |
| Pfaffle Antony | Officer | 10,000 | 2017-02-07 | M |
| HOFER TIMOTHY M | Director | 8,425 | 2011-12-09 | P |
| Mounts Phoebe | Officer | 7,200 | 2020-08-13 | P |
| Abrams Judith R | Officer | 0 | 2017-02-01 | — |
| O'Grady Harry | Officer | 0 | 2014-07-21 | — |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-09-18 | Dillione Janet | Option exercise (derivative) | 48,909 | — | 0 |
| 2026-09-18 | Dillione Janet | Option exercise | 48,909 | — | 117,835 |
| 2026-08-29 | Zelnick Kaufman Beth | Tax withholding | 8,424 | $8.30 | 260,684 |
| 2026-08-29 | Hurlburt Elizabeth | Tax withholding | 8,076 | $8.30 | 270,463 |
| 2026-08-29 | Blum Susan | Tax withholding | 8,424 | $8.30 | 124,315 |
| 2026-02-04 | Todisco Joseph | Grant / award | 77,156 | $0.00 | 774,749 |
| 2026-02-04 | Hurlburt Elizabeth | Grant / award | 36,006 | $0.00 | 278,539 |
| 2026-02-04 | Zelnick Kaufman Beth | Grant / award | 36,006 | $0.00 | 269,108 |
| 2026-01-26 | Duncan Gregory Scott | Grant / award | 30,453 | $0.00 | 68,786 |
| 2026-01-26 | Stewart Robert A | Grant / award | 30,453 | $0.00 | 66,453 |
| 2026-01-26 | DUNTON ALAN W | Grant / award | 30,453 | $0.00 | 70,703 |
| 2026-01-26 | Lefkowitz Steven W | Grant / award | 30,453 | $0.00 | 125,951 |
| 2026-01-26 | Dillione Janet | Grant / award | 30,453 | $0.00 | 68,926 |
| 2026-01-26 | Kaplan Myron | Grant / award | 30,453 | $0.00 | 231,487 |
| 2026-01-23 | Todisco Joseph | Tax withholding | 27,306 | $7.27 | 697,593 |
| 2026-01-23 | Todisco Joseph | Grant / award | 225,900 | $0.00 | 724,899 |
| 2026-01-23 | Hurlburt Elizabeth | Tax withholding | 10,778 | $7.27 | 242,533 |
| 2026-01-23 | Hurlburt Elizabeth | Grant / award | 93,010 | $0.00 | 253,311 |
| 2026-01-23 | Zelnick Kaufman Beth | Tax withholding | 8,803 | $7.27 | 233,102 |
| 2026-01-23 | Zelnick Kaufman Beth | Grant / award | 72,820 | $0.00 | 241,905 |
| 2026-01-23 | Blum Susan | Tax withholding | 9,767 | $7.27 | 132,739 |
| 2026-01-23 | Blum Susan | Grant / award | 72,820 | $0.00 | 142,506 |
| 2026-01-21 | Dillione Janet | Open-market sale | 10,000 | $6.88 | 38,473 |
| 2026-01-17 | Todisco Joseph | Tax withholding | 22,665 | $6.78 | 498,999 |
| 2026-01-16 | Todisco Joseph | Option exercise (derivative) | 29,585 | $0.00 | 411,245 |
| 2026-01-16 | Todisco Joseph | Option exercise | 29,585 | $3.38 | 521,664 |
| 2026-01-12 | Lefkowitz Steven W | Option exercise (derivative) | 15,000 | $0.00 | 0 |
| 2026-01-12 | Lefkowitz Steven W | Option exercise | 15,000 | $5.63 | 95,498 |
| 2026-01-12 | Todisco Joseph | Tax withholding | 17,417 | $7.15 | 492,079 |
| 2026-01-12 | Hurlburt Elizabeth | Tax withholding | 5,794 | $7.15 | 160,301 |
| 2026-01-08 | Seckler Michael David | Grant / award | 133,156 | $0.00 | 133,156 |
| 2026-01-02 | Zelnick Kaufman Beth | Tax withholding | 11,333 | $12.16 | 169,085 |
| 2026-01-02 | Hurlburt Elizabeth | Tax withholding | 10,895 | $12.16 | 166,095 |
| 2025-12-30 | DUNTON ALAN W | Option exercise (derivative) | 20,000 | $0.00 | 0 |
| 2025-12-30 | DUNTON ALAN W | Open-market sale | 20,000 | $13.00 | 40,250 |
| 2025-12-30 | DUNTON ALAN W | Option exercise | 20,000 | $4.03 | 60,250 |
| 2025-12-18 | Todisco Joseph | Option exercise (derivative) | 30,000 | $0.00 | 370,000 |
| 2025-12-18 | Todisco Joseph | Open-market sale | 30,000 | $12.00 | 509,496 |
| 2025-12-18 | Todisco Joseph | Option exercise | 30,000 | $4.43 | 539,496 |
| 2025-12-09 | Lefkowitz Steven W | Open-market sale | 40,000 | $11.88 | 80,498 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.