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Who

Aleksandra A. Miziolek

Director

Company insider

Files Form 4 as: Director, Solid Power; Director, Dauch; Director, Tenneco; Officer, Cooper-Standard Holdings.

In numbers

Trades disclosed
45
Buys
0
Sells
2
Bought
$0
Sold
$298K
Companies
4
Companies where not an officer
3
First trade
20 Mar 2014
Last trade
20 May 2026
Last filed
21 May 2026

Companies traded

Where they are an officer
CPS Cooper-Standard HoldingsOfficer · Auto Parts & Dealers · last 18 Feb 20190 buys · 2 sells
Everywhere else they filed: board seats, 10% stakes, other companies
SLDP Solid PowerDirector · Electronic Components & EMS · last 20 May 20260 buys · 0 sells
DCH DauchDirector · Auto Parts & Dealers · last 30 Apr 20260 buys · 0 sells
TennecoDirector · last 17 Nov 20220 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
20 May 2026filed 21 May 2026SLDP Solid PowerElectronic Components & EMSSEC FORM 4 Code A—44,133 at $0.00filing
20 May 2026filed 21 May 2026SLDP Solid PowerElectronic Components & EMSSEC FORM 4 Code A—44,133 at $0.00filing
30 Apr 2026filed 1 May 2026DCH DauchAuto Parts & DealersSEC FORM 4 Code A—29,773 at $0.00filing
30 Apr 2026filed 1 May 2026DCH DauchAuto Parts & DealersSEC FORM 4 Code A—29,773 at $0.00filing
21 May 2025filed 22 May 2025SLDP Solid PowerElectronic Components & EMSSEC FORM 4 Code A—118,808 at $0.00filing
1 May 2025filed 2 May 2025DCH DauchAuto Parts & DealersSEC FORM 4 Code A$150K39,474 at $3.80filing
22 May 2024filed 23 May 2024SLDP Solid PowerElectronic Components & EMSSEC FORM 4 Code A—82,365 at $0.00filing
2 May 2024filed 6 May 2024DCH DauchAuto Parts & DealersSEC FORM 4 Code A$150K20,492 at $7.32filing
24 May 2023filed 25 May 2023SLDP Solid PowerElectronic Components & EMSSEC FORM 4 Code A—59,197 at $0.00filing
17 Nov 2022filed 21 Nov 2022TennecoSEC FORM 4 Code D$1.1M56,825 at $20.00filing
25 May 2022filed 26 May 2022SLDP Solid PowerElectronic Components & EMSSEC FORM 4 Code A—15,700 at $0.00filing
1 Apr 2022filed 1 Apr 2022SLDP Solid PowerElectronic Components & EMSSEC FORM 4 Code A—20,859 at $0.00filing
1 Feb 2022filed 2 Feb 2022TennecoSEC FORM 4 Code A—15,110 at $0.00filing
2 Feb 2021filed 4 Feb 2021TennecoSEC FORM 4 Code A—10,850 at $0.00filing
18 Mar 2020filed 19 Mar 2020TennecoSEC FORM 4 Code A—30,865 at $0.00filing
18 Feb 2019filed 19 Feb 2019CPS Cooper-Standard Holdingsoption or derivative · Auto Parts & DealersSEC FORM 4 Code M—1,200 at $0.00filing
18 Feb 2019filed 19 Feb 2019CPS Cooper-Standard HoldingsAuto Parts & DealersSEC FORM 4 Code M$77K1,200 at $64.56filing
18 Feb 2019filed 19 Feb 2019CPS Cooper-Standard HoldingsAuto Parts & DealersSEC FORM 4 Code F$22K344 at $64.56filing
14 Feb 2019filed 19 Feb 2019CPS Cooper-Standard Holdingsoption or derivative · Auto Parts & DealersSEC FORM 4 Code A—6,258 at $0.00filing
14 Feb 2019filed 19 Feb 2019CPS Cooper-Standard Holdingsoption or derivative · Auto Parts & DealersSEC FORM 4 Code A—1,417 at $0.00filing

Sectors

Consumer Discretionary2

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

Related people

Matthew W. BoddySVP, Chief Commerical Officer · SVP, Chief Commerical Officer at Cooper-Standard Holdings, filing Form 4 there in the last year
Somasundhar VenkatasubramanianOfficer · Insider at Cooper-Standard Holdings, filing Form 4 there in the last year
MaryAnn Peterson KanaryOfficer · Insider at Cooper-Standard Holdings, filing Form 4 there in the last year
Christopher CouchOfficer · Officer at Cooper-Standard Holdings, filing Form 4 there in the last year
Sonya F. SepahbanDirector · Director at Cooper-Standard Holdings, filing Form 4 there in the last year