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Who

Stephen J. Webber

Director

Company insider

Files Form 4 as: Director, Csp; Officer, Carbon Black; Chief Financial Officer, Cynosure.

Every Form 4 they filed

In numbers

Trades disclosed
14
Buys
1
Sells
0
Bought
$47K
Sold
$0
Companies
3
Companies where not an officer
1
First trade
10 Oct 2016
Last trade
12 May 2026
Last filed
13 May 2026

Companies traded

Where they are an officer
Carbon BlackOfficer · last 8 Oct 20190 buys · 0 sells
CynosureOfficer · last 22 Mar 20170 buys · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
CSPI CspDirector · IT Services & Consulting · last 12 May 20261 buy · 0 sells

Activity over time

1 May – 1 Oct
01May 26Jun 26Aug 26Sep 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
12 May 2026filed 13 May 2026CSPI CspIT Services & ConsultingSEC FORM 4 Bought$24K2,500 at $9.48filing
12 May 2026filed 13 May 2026CSPI CspIT Services & ConsultingSEC FORM 4 Bought$24K2,500 at $9.48filing
27 Mar 2026filed 1 Apr 2026CSPI CspIT Services & ConsultingSEC FORM 4 Code A—10,000 at $0.00filing
27 Mar 2026filed 1 Apr 2026CSPI CspIT Services & ConsultingSEC FORM 4 Code A—10,000 at $0.00filing
8 Oct 2019filed 8 Oct 2019Carbon Blackoption or derivativeSEC FORM 4 Code D—242,663filing
8 Oct 2019filed 8 Oct 2019Carbon BlackSEC FORM 4 Code D—112,866filing
24 Apr 2019filed 26 Apr 2019Carbon Blackoption or derivativeSEC FORM 4 Code A—242,663 at $0.00filing
24 Apr 2019filed 26 Apr 2019Carbon BlackSEC FORM 4 Code A—112,866 at $0.00filing
22 Mar 2017filed 24 Mar 2017CynosureSEC FORM 4 Code A—23,180filing
22 Mar 2017filed 24 Mar 2017CynosureSEC FORM 4 Code D—23,180filing
22 Mar 2017filed 24 Mar 2017Cynosureoption or derivativeSEC FORM 4 Code D—10,000filing
22 Mar 2017filed 24 Mar 2017Cynosureoption or derivativeSEC FORM 4 Code D—9,483filing
8 Feb 2017filed 10 Feb 2017Cynosureoption or derivativeSEC FORM 4 Code A—9,483 at $0.00filing
10 Oct 2016filed 12 Oct 2016Cynosureoption or derivativeSEC FORM 4 Code A—10,000 at $0.00filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Technology1

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

Related people

Joseph R. Nerges10% owner · Also traded CSPI in the last 90 days