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Home > Insider Trading > Filing (0001179110-10-007265)

Filing Details

Accession Number:: 0001179110-10-007265
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2010-04-22 13:00:00
Reporting Period:: 2008-05-16

Filing Date:: 2010-04-22
Accepted Time:: 2010-04-22 19:43:35
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
1265194	L Michael Beatty	C/O Markwest Energy Partners, L.p. 1515 Arapahoe St. Twr 2, Ste. 700 Denver CO 80202		Yes	No	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	2008-05-16	9	$36.14	11,393	No	4	P	Direct
Common Units	Acquisiton	2008-08-18	10	$33.13	11,403	No	4	P	Direct
Common Units	Acquisiton	2008-11-17	24	$14.89	11,427	No	4	P	Direct
Common Units	Acquisiton	2009-02-17	33	$11.33	11,460	No	4	P	Direct
Common Units	Acquisiton	2009-05-18	24	$15.96	11,484	No	4	P	Direct
Common Units	Acquisiton	2009-08-17	19	$21.03	11,504	No	4	P	Direct
Common Units	Acquisiton	2009-11-16	18	$23.87	11,521	No	4	P	Direct
Common Units	Acquisiton	2009-11-17	1,800	$24.42	13,321	No	4	P	Direct

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