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Who

John Richard Sylvester

Director

Company insider

Files Form 4 as: Director, Delcath Systems.

In numbers

Trades disclosed
10
Buys
2
Sells
0
Bought
$90K
Sold
$0
Companies
1
Companies where not an officer
1
First trade
23 Nov 2020
Last trade
13 May 2026
Last filed
14 May 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
DCTH Delcath SystemsDirector · Medical Devices · last 13 May 20262 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
01Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
13 May 2026filed 14 May 2026DCTH Delcath Systemsoption or derivative · Medical DevicesSEC FORM 4 Code A—22,500 at $0.00filing
13 May 2026filed 14 May 2026DCTH Delcath Systemsoption or derivative · Medical DevicesSEC FORM 4 Code A—22,500 at $0.00filing
21 Nov 2025filed 25 Nov 2025DCTH Delcath SystemsMedical DevicesSEC FORM 4 Bought$39K4,386 at $8.89filing
15 May 2025filed 19 May 2025DCTH Delcath Systemsoption or derivative · Medical DevicesSEC FORM 4 Code A—22,500 at $0.00filing
23 May 2024filed 28 May 2024DCTH Delcath Systemsoption or derivative · Medical DevicesSEC FORM 4 Code A—22,500 at $0.00filing
21 Aug 2023filed 23 Aug 2023DCTH Delcath SystemsMedical DevicesSEC FORM 4 Bought$51K10,550 at $4.80filing
12 Jun 2023filed 22 Jun 2023DCTH Delcath Systemsoption or derivative · Medical DevicesSEC FORM 4 Code A—19,682 at $0.00filing
4 May 2022filed 6 May 2022DCTH Delcath Systemsoption or derivative · Medical DevicesSEC FORM 4 Code A—9,000 at $0.00filing
5 Aug 2021filed 9 Aug 2021DCTH Delcath Systemsoption or derivative · Medical DevicesSEC FORM 4 Code A—9,000 at $0.00filing
23 Nov 2020filed 25 Nov 2020DCTH Delcath Systemsoption or derivative · Medical DevicesSEC FORM 4 Code A—30,000 at $0.00filing

Sectors

Health Care2

Buys in green, sells in red, by the company’s sector.

Related people

Rosalind Advisors, Inc.Director · Director at Delcath Systems, filing Form 4 there in the last year
Gil AharonDirector · Director at Delcath Systems, filing Form 4 there in the last year
Elizabeth CzerepakDirector · Director at Delcath Systems, filing Form 4 there in the last year
Steven A. J. SalamonDirector · Director at Delcath Systems, filing Form 4 there in the last year
Bridget A. MartellDirector · Director at Delcath Systems, filing Form 4 there in the last year