Joseph Todisco - 12 Jan 2026 Form 4 Insider Report for CorMedix Inc. (CRMD)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: CRMD
Reported as of: 12 Jan 2026
Net transaction value: -$178,203
SEC form: 4
Accepted by SEC: 20 Jan 2026, 09:28:12 UTC
Prior SEC filing: 19 Dec 2025
Next SEC filing: 27 Jan 2026
Source filing: View source filing
Reporting owner signature: /s/ Beth Zelnick Kaufman, attorney-in-fact

Key filing fact

Joseph Todisco filed Form 4 for CorMedix Inc. (CRMD) on 20 Jan 2026.

Key facts

This page summarizes Joseph Todisco's Form 4 filing for CorMedix Inc. (CRMD).
4 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 20 Jan 2026, 09:28.

Change

Previous filing in this sequence was filed on 19 Dec 2025.
Current net transaction value: -$178,203.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001774807 Primary reporting owner

Todisco Joseph

Relationship: Chief Executive Officer, Director
Address: C/O CORMEDIX INC., 300 CONNELL DRIVE, SUITE 4200, BERKELEY HEIGHTS
Signature: /s/ Beth Zelnick Kaufman, attorney-in-fact
Signature date: 20 Jan 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CRMD transaction

Common Stock

Tax liability

Transaction value: $124,532
Shares: -17,417
Change %: -3.4%
Price: $7.15
Shares after: 492,079
Date: 12 Jan 2026
Ownership: Direct
Footnotes: F1

CRMD transaction

Common Stock

Options Exercise

Transaction value: $99,997
Shares: +29,585
Change %: +6%
Price: $3.38
Shares after: 521,664
Date: 16 Jan 2026
Ownership: Direct
Footnotes: F2

CRMD transaction

Common Stock

Tax liability

Transaction value: $153,669
Shares: -22,665
Change %: -4.3%
Price: $6.78
Shares after: 498,999
Date: 17 Jan 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

CRMD transaction Derivative

Stock Option (Right to Buy Common Stock)

Options Exercise

Transaction value: $0
Shares: -29,585
Change %: -6.7%
Price: $0.000000
Shares after: 411,245
Date: 16 Jan 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 29,585
Exercise price: $3.38
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

This transaction is being reported late due to an inadvertent administrative error.

Footnote F2

The Reporting Person acquired stock through the exercise of options granted on 5/10/2022. The Reporting Person paid the exercise price in cash. No sales of stock were made.

Footnote F3

These options were granted on 5/10/2022. These options vest over four years in four equal installments on the first four anniversaries of the grant date, subject to continued employment through the applicable vesting date.

SEC remarks

Exhibit 24.1 - Power of Attorney