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Who

Stephen W. Bergstrom

Director

Company insider

Files Form 4 as: Director, Williams Companies; CEO and Executive Chairman, Third Coast Midstream.

In numbers

Trades disclosed
41
Buys
5
Sells
0
Bought
$1.7M
Sold
$0
Companies
2
Companies where not an officer
1
First trade
15 Sep 2015
Last trade
19 May 2026
Last filed
20 May 2026

Companies traded

Where they are an officer
Third Coast MidstreamDirector, Officer · last 23 Jul 20191 buy · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
WMB Williams CompaniesDirector · Midstream & Pipelines · last 19 May 20264 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
19 May 2026filed 20 May 2026WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Code G—16,400 at $0.00filing
19 May 2026filed 20 May 2026WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Code G—16,400 at $0.00filing
28 Apr 2026filed 30 Apr 2026WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Code A$756K10,355 at $73.04filing
28 Apr 2026filed 30 Apr 2026WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Code A$756K10,355 at $73.04filing
29 Apr 2025filed 1 May 2025WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Code A$385K6,452 at $59.67filing
30 Apr 2024filed 2 May 2024WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Code A—10,036 at $0.00filing
25 Apr 2023filed 27 Apr 2023WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Code A—12,529 at $0.00filing
14 Mar 2023filed 15 Mar 2023WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Bought$200K6,895 at $29.00filing
26 Apr 2022filed 28 Apr 2022WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Code A—10,930 at $0.00filing
27 Apr 2021filed 29 Apr 2021WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Code A—15,246 at $0.00filing
28 Apr 2020filed 30 Apr 2020WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Code A—19,302 at $0.00filing
9 Mar 2020filed 10 Mar 2020WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Bought$251K16,400 at $15.30filing
23 Aug 2019filed 23 Aug 2019WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Bought$230K10,000 at $22.99filing
23 Jul 2019filed 23 Jul 2019Third Coast MidstreamSEC FORM 4 Code D—64,221 at $0.00filing
12 Jul 2019filed 16 Jul 2019American Midstream Partners, LPSEC FORM 4 Code A—3,384 at $0.00filing
12 Jul 2019filed 16 Jul 2019American Midstream Partners, LPSEC FORM 4 Code F$4,374846 at $5.17filing
9 May 2019filed 13 May 2019WMB Williams CompaniesMidstream & PipelinesSEC FORM 4 Code A—13,539 at $0.00filing
1 Apr 2019filed 3 Apr 2019American Midstream Partners, LPSEC FORM 4 Code A—3,398 at $0.00filing
1 Apr 2019filed 3 Apr 2019American Midstream Partners, LPSEC FORM 4 Code F$4,403850 at $5.18filing
8 Jan 2019filed 10 Jan 2019American Midstream Partners, LPSEC FORM 4 Code A—5,775 at $0.00filing

Sectors

Energy4
Not placed1

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

Related people

Terrance Lane WilsonSVP & General Counsel · Also traded WMB in the last 90 days
Alan ArmstrongSenator, OK · Also traded WMB in the last 90 days