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Who

Connie K. Duckworth

Director

Company insider

Files Form 4 as: Director, MP Materials; Director, Steelcase; Director, Vivmark Residential; Director, Smurfit Stone Container; Director, Nuveen Investments.

In numbers

Trades disclosed
132
Buys
2
Sells
2
Bought
$686K
Sold
$11K
Companies
5
Companies where not an officer
5
First trade
10 May 2006
Last trade
30 Sep 2026
Last filed
30 Sep 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
MP MP MaterialsDirector · Rare Earths & Critical Minerals · last 30 Sep 20261 buy · 0 sells
SteelcaseDirector · last 10 Dec 20250 buys · 0 sells
VMRK Vivmark ResidentialDirector · REITs · last 17 Jun 20210 buys · 0 sells
Smurfit Stone ContainerDirector · last 30 Jun 20101 buy · 2 sells
Nuveen InvestmentsDirector · last 13 Nov 20070 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
30 Sep 2026filed 30 Sep 2026MP MP MaterialsRare Earths & Critical MineralsSEC FORM 4 Code A—740 at $0.00filing
30 Sep 2026filed 30 Sep 2026MP MP MaterialsRare Earths & Critical MineralsSEC FORM 4 Code A—740 at $0.00filing
30 Jun 2026filed 30 Jun 2026MP MP MaterialsRare Earths & Critical MineralsSEC FORM 4 Code A—624 at $0.00filing
30 Jun 2026filed 30 Jun 2026MP MP MaterialsRare Earths & Critical MineralsSEC FORM 4 Code A—624 at $0.00filing
15 Jun 2026filed 15 Jun 2026MP MP MaterialsRare Earths & Critical MineralsSEC FORM 4 Code M—3,998filing
15 Jun 2026filed 15 Jun 2026MP MP Materialsoption or derivative · Rare Earths & Critical MineralsSEC FORM 4 Code M—3,998 at $0.00filing
15 Jun 2026filed 15 Jun 2026MP MP Materialsoption or derivative · Rare Earths & Critical MineralsSEC FORM 4 Code M—3,998 at $0.00filing
15 Jun 2026filed 15 Jun 2026MP MP MaterialsRare Earths & Critical MineralsSEC FORM 4 Code M—3,998filing
9 Jun 2026filed 10 Jun 2026MP MP Materialsoption or derivative · Rare Earths & Critical MineralsSEC FORM 4 Code A—3,038 at $0.00filing
9 Jun 2026filed 10 Jun 2026MP MP Materialsoption or derivative · Rare Earths & Critical MineralsSEC FORM 4 Code A—3,038 at $0.00filing
31 Mar 2026filed 1 Apr 2026MP MP MaterialsRare Earths & Critical MineralsSEC FORM 4 Code A—725 at $0.00filing
31 Mar 2026filed 1 Apr 2026MP MP MaterialsRare Earths & Critical MineralsSEC FORM 4 Code A—725 at $0.00filing
31 Dec 2025filed 2 Jan 2026MP MP MaterialsRare Earths & Critical MineralsSEC FORM 4 Code A—593 at $0.00filing
31 Dec 2025filed 2 Jan 2026MP MP MaterialsRare Earths & Critical MineralsSEC FORM 4 Code A—593 at $0.00filing
10 Dec 2025filed 12 Dec 2025SteelcaseSEC FORM 4 Code D—133,575filing
30 Sep 2025filed 1 Oct 2025MP MP MaterialsRare Earths & Critical MineralsSEC FORM 4 Code A—447 at $0.00filing
10 Sep 2025filed 12 Sep 2025SteelcaseSEC FORM 4 Code A—2,063filing
30 Jun 2025filed 30 Jun 2025MP MP MaterialsRare Earths & Critical MineralsSEC FORM 4 Code A—901 at $0.00filing
10 Jun 2025filed 12 Jun 2025SteelcaseSEC FORM 4 Code A—3,224filing
10 Jun 2025filed 11 Jun 2025MP MP Materialsoption or derivative · Rare Earths & Critical MineralsSEC FORM 4 Code A—4,957 at $0.00filing

Sectors

Materials1
Not placed3

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

Related people

David Gregory InfusoChief Accounting Officer · Chief Accounting Officer at MP Materials Corp. / DE, filing Form 4 there in the last year
Richard B. MyersDirector · Director at MP Materials Corp. / DE, filing Form 4 there in the last year
Maryanne LavanDirector · Director at MP Materials Corp. / DE, filing Form 4 there in the last year
Randall J. WeisenburgerDirector · Director at MP Materials Corp. / DE, filing Form 4 there in the last year
Andrew A. McKnightDirector · Director at MP Materials Corp. / DE, filing Form 4 there in the last year