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Who

John A. Weinzierl

Director and 10% owner and Other role

Company insider

Files Form 4 as: Chairman, U.S. Energy; CEO and Chairman, Memorial Production Partners LP; Former CEO and Director, Memorial Resource Development; Director, Eagle Rock Energy Partners L P.

In numbers

Trades disclosed
31
Buys
3
Sells
0
Bought
$5.1M
Sold
$0
Companies
4
Companies where not an officer
1
First trade
27 Oct 2006
Last trade
29 Apr 2026
Last filed
1 May 2026

Companies traded

Where they are an officer
U.S. EnergyDirector, Officer, 10% owner, Other · Oil & Gas E&P · last 29 Apr 20260 buys · 0 sells
Memorial Production Partners LPDirector, Officer · last 14 Jun 20162 buys · 0 sells
Memorial Resource DevelopmentDirector, Officer · last 1 Jun 20161 buy · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
Eagle Rock Energy Partners L PDirector · last 15 Nov 20100 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
29 Apr 2026filed 1 May 2026U.S. EnergyOil & Gas E&PSEC FORM 4 Code J$2.0M1,818,000 at $1.10filing
29 Apr 2026filed 1 May 2026U.S. EnergyOil & Gas E&PSEC FORM 4 Code J$1000K909,000 at $1.10filing
29 Apr 2026filed 1 May 2026U.S. EnergyOil & Gas E&PSEC FORM 4 Code J$1000K909,000 at $1.10filing
4 Mar 2026filed 6 Mar 2026U.S. Energyoption or derivative · Oil & Gas E&PSEC FORM 4 Code A—460,000 at $0.00filing
9 Jan 2025filed 13 Jan 2025BSIN Big Sky IndustrialOil & Gas E&PSEC FORM 4 Code A—1,400,000filing
19 Mar 2024filed 20 Mar 2024BSIN Big Sky IndustrialOil & Gas E&PSEC FORM 4 Code A—120,000 at $0.00filing
5 Jan 2023filed 10 Jan 2023BSIN Big Sky IndustrialOil & Gas E&PSEC FORM 4 Code A—97,826 at $0.00filing
14 Jun 2016filed 16 Jun 2016Memorial Production Partners LPoption or derivativeSEC FORM 4 Code A—1,005,587 at $0.00filing
1 Jun 2016filed 3 Jun 2016Memorial Resource DevelopmentSEC FORM 4 Code F$1.4M87,315 at $15.87filing
31 May 2016filed 1 Jun 2016Memorial Production Partners LPSEC FORM 4 Code F$35K16,727 at $2.10filing
30 May 2016filed 1 Jun 2016Memorial Production Partners LPSEC FORM 4 Code F$37K17,503 at $2.11filing
29 May 2016filed 1 Jun 2016Memorial Production Partners LPSEC FORM 4 Code F$10K4,882 at $2.11filing
29 May 2015filed 2 Jun 2015Memorial Resource DevelopmentSEC FORM 4 Code A—126,917 at $0.00filing
29 May 2015filed 2 Jun 2015Memorial Production Partners LPSEC FORM 4 Code A—53,548 at $0.00filing
9 Jan 2015filed 13 Jan 2015Memorial Production Partners LPSEC FORM 4 Code A—11,327 at $0.00filing
9 Jan 2015filed 13 Jan 2015Memorial Resource DevelopmentSEC FORM 4 Code A—9,695 at $0.00filing
11 Nov 2014filed 13 Nov 2014Memorial Production Partners LPSEC FORM 4 Bought$1.0M60,000 at $16.72filing
19 Jun 2014filed 13 Nov 2014Memorial Production Partners LPSEC FORM 4 Code J—105,263 at $0.00filing
18 Jun 2014filed 19 Jun 2014Memorial Resource DevelopmentSEC FORM 4 Code A—184,211 at $0.00filing
13 Jun 2014filed 16 Jun 2014Memorial Resource DevelopmentSEC FORM 4 Bought$2.1M110,000 at $19.00filing

News

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

Sectors

Not placed3

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

Related people

Ryan Lewis SmithDirector · CEO at Us Energy, filing Form 4 there in the last year
Mark L. ZajacCFO · CFO at Us Energy, filing Form 4 there in the last year
Randall D. KeysDirector · Director at Us Energy, filing Form 4 there in the last year
James W. Denny IIIDirector · Director at Us Energy, filing Form 4 there in the last year
Stephen SlackDirector · Director at Us Energy, filing Form 4 there in the last year