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Who

Joseph D. Hammer

Former Chief Executive Officer

Company insider

Files Form 4 as: Former Chief Executive Officer, Expion Energy; Director and 10% owner, Trailblazer Merger Corp I.

In numbers

Trades disclosed
6
Buys
1
Sells
0
Bought
$3.9M
Sold
$0
Companies
2
Companies where not an officer
1
First trade
31 Mar 2023
Last trade
21 Aug 2026
Last filed
25 Aug 2026

Companies traded

Where they are an officer
XPON Expion EnergyDirector, Officer · Electronic Components & EMS · last 21 Aug 20260 buys · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
Trailblazer Merger Corp IDirector, 10% owner · last 31 Mar 20231 buy · 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
21 Aug 2026filed 25 Aug 2026XPON Expion Energyoption or derivative · Electronic Components & EMSSEC FORM 4 Code P$20.3B4,500 at $4,500,000.00filing
21 Aug 2026filed 25 Aug 2026XPON Expion Energyoption or derivative · Electronic Components & EMSSEC FORM 4 Code P—1,058,609 at $0.00filing
21 Aug 2026filed 25 Aug 2026XPON Expion Energyoption or derivative · Electronic Components & EMSSEC FORM 4 Code P$20.3B4,500 at $4,500,000.00filing
21 Aug 2026filed 25 Aug 2026XPON Expion Energyoption or derivative · Electronic Components & EMSSEC FORM 4 Code P—1,058,609 at $0.00filing
31 Mar 2023filed 4 Apr 2023Trailblazer Merger Corp Ioption or derivativeSEC FORM 4 Code P—394,500filing
31 Mar 2023filed 4 Apr 2023Trailblazer Merger Corp ISEC FORM 4 Bought$3.9M394,500 at $10.00filing

News

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

Sectors

Not placed1

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

Related people

Robert L. WinspearChief Financial Officer · Chief Financial Officer at Expion Energy, filing Form 4 there in the last year
Kevin SellersChief Executive Officer · Chief Executive Officer at Expion Energy, filing Form 4 there in the last year
Tien Quoc NguyenDirector · Director at Expion Energy, filing Form 4 there in the last year
Steve ShumDirector · Director at Expion Energy, filing Form 4 there in the last year
Brian Paul SchaffnerDirector · Director at Expion360, filing Form 4 there in the last year