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Home > Insider Trading > Filing (0001179110-11-008175)

Filing Details

Accession Number:: 0001179110-11-008175
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2011-05-17 19:44:02
Reporting Period:: 2011-05-17

Filing Date:: 2011-05-17
Accepted Time:: 2011-05-17 19:44:02
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1166036	Markwest Energy Partners L P	MWE	Crude Petroleum & Natural Gas (1311)	270005456

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1270065	M Frank Semple	C/O Markwest Engergy Partners, L.p. 1515 Arapahoe St. Twr 1, Ste 1600 Denver CO 80202	Chairman, President & Ceo	Yes	Yes	No	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Units	Acquisiton	2011-05-17	1,160	$43.18	539,738	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Direct

Footnotes

Amount of securities beneficially owned following the reported transaction(s) includes Common Units owned and Restricted Units subject to varying vesting terms.