Bridget A. Martell - 12 Nov 2026 Form 4 Insider Report for DELCATH SYSTEMS, INC. (DCTH)

Reporting relationship: Director
Issuer ticker: DCTH
Reported as of: 12 Nov 2026
Net transaction value: -$488,508
SEC form: 4
Accepted by SEC: 13 Nov 2026, 16:10:06 UTC
Prior SEC filing: 29 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ David Hoffman, Attorney-in-Fact

Filing notes and source

Key filing fact

Bridget A. Martell filed Form 4 for DELCATH SYSTEMS, INC. (DCTH) on 13 Nov 2026.

Key facts

This page summarizes Bridget A. Martell's Form 4 filing for DELCATH SYSTEMS, INC. (DCTH).
4 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 13 Nov 2026, 16:10.

Change

Previous filing in this sequence was filed on 29 Jun 2026.
Current net transaction value: -$488,508.

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 0001629627 Primary reporting owner

Martell Bridget A

Relationship: Director
Address: C/O DELCATH SYSTEMS, INC., 566 QUEENSBURY AVENUE, QUEENSBURY
Signature: /s/ David Hoffman, Attorney-in-Fact
Signature date: 13 Nov 2026

Reported non-derivative transactions

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

DCTH transaction

Common Stock

Options Exercise

Transaction value
Shares: +22,500
Change %
Price: $7.85^*
Shares after: 22,500
Date: 12 Nov 2026
Ownership: Direct

DCTH transaction

Common Stock

Sale

Transaction value: -$445,546
Shares: -20,570
Change %: -91%
Price: $21.66
Shares after: 1,930
Date: 12 Nov 2026
Ownership: Direct
Footnotes: F1

DCTH transaction

Common Stock

Sale

Transaction value: -$42,962
Shares: -1,930
Change %: -100%
Price: $22.26
Shares after: 0
Date: 12 Nov 2026
Ownership: Direct
Footnotes: F2

Reported derivative securities

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

DCTH transaction Derivative

Stock Option (right to buy)

Options Exercise

Transaction value
Shares: -22,500
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 12 Nov 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 22,500
Exercise price: $7.85
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

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.20 to $22.19 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F2

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.20 to $22.46 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F3

The option will vest and become exercisable at the rate of one-twelfth (1/12th) per month with the first such vesting to occur on May 23, 2024 and monthly thereafter for so long as the reporting person remains a director of Delcath Systems, Inc. (and subject to the terms and conditions of the Delcath Systems, Inc. 2020 Omnibus Equity Incentive Plan, as amended). The option will expire the earlier of 10 years from the grant date or, for vested options, two years from the last day of service.