Plains Exploration & Production Co: Ownership

Ownership Information
Shares Outstanding 139.00 Mil
Institutional Ownership (%)89.37
Top 10 Institutions (%)48.00
Mutual Fund Ownership (%).94
5%/Insider Ownership (%)1.95
Float (%)98.05
Ownership Activity
Description# of HoldersShares
Total Positions 299124,223,336
New Positions440
Soldout Positions1310
Net Position Change-47-6,526,520
Buyers17428,763,062
Sellers221-35,289,584
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
Fidelity Management & Research 20,105,172 2,486,907 14.1 74,073,328 14.4 0.1 09-30-09
Capital World Investors 6,944,000 6,594,879 1,889.0 182,519,088 5.0 0.1 09-30-09
PRIMECAP Management Company 6,666,724 -106,647 -1.6 -917,845 4.8 0.4 09-30-09
Soros Fund Management, L.L.C. 6,113,815 -412,585 -6.3 -9,454,181 4.4 4.3 09-30-09
BlackRock Institutional Trust Company, N.A. 6,080,420 699,921 13.0 20,973,964 4.4 0.1 09-30-09
BlackRock Financial Management, Inc. 5,937,560 -398,308 -6.3 -9,116,438 4.3 0.3 09-30-09
Vanguard Group, Inc. 4,898,923 624,666 14.6 18,560,538 3.5 0.0 09-30-09
Hoplite Capital Management, L.L.C. 3,664,320 421,920 13.0 12,643,027 2.6 5.6 09-30-09
State Street Global Advisors (US) 3,548,436 412,414 13.2 12,348,178 2.5 0.0 09-30-09
Klingenstein, Fields & Co., L.L.C. 2,723,766 -124,356 -4.4 -2,585,250 2.0 3.5 09-30-09
Fred Alger Management, Inc. 2,013,712 742,527 58.4 20,919,652 1.4 0.5 09-30-09
Westport Asset Management, Inc. 1,959,626 42,760 2.2 1,757,801 1.4 3.2 09-30-09
Sound Energy Partners, Inc. 1,874,200 -50,000 -2.6 -805,740 1.3 3.1 09-30-09
Westwood Management Corp. (Texas) 1,816,017 242,904 15.4 7,190,658 1.3 0.6 09-30-09
Dimensional Fund Advisors, LP 1,460,891 216,354 17.4 6,357,713 1.0 0.1 09-30-09
*Category Headings:
Shs Held - shares held at report date
Shs Chg - position change within reporting period
%Chg - % change
$Chg - market value of the position change
%Out - % of shares outstanding
%Port - % Portfolio
Rpt Date - report date
Page generated 2/10/2010 9:27 AM Eastern Time