AMAG Pharmaceuticals Inc: Ownership

Ownership Information
Shares Outstanding 17.00 Mil
Institutional Ownership (%)116.73
Top 10 Institutions (%)58.00
Mutual Fund Ownership (%)3.49
5%/Insider Ownership (%)1.73
Float (%)98.27
Ownership Activity
Description# of HoldersShares
Total Positions 12819,843,716
New Positions240
Soldout Positions710
Net Position Change-31-1,547,022
Buyers734,854,993
Sellers104-6,402,015
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
Adage Capital Management, L.P. 2,142,821 0 0.0 -23,549,604 12.3 0.5 09-30-09
QVT Financial LP 1,082,601 -116,170 -9.7 -18,248,800 6.2 6.4 09-30-09
BlackRock Institutional Trust Company, N.A. 1,019,728 7,723 0.8 -10,784,594 5.9 0.0 09-30-09
Palo Alto Investors, LLC 983,004 189,750 23.9 -429,581 5.7 5.2 09-30-09
Standard Life Investments Ltd. 963,173 215,008 28.7 1,169,216 5.5 0.5 09-30-09
Delaware Street Capital, L.L.C. 846,900 300,000 54.9 7,093,569 4.9 35.6 09-30-09
Columbia Wanger Asset Management, L.P. 826,900 826,900 100.0 36,118,992 4.8 0.2 09-30-09
Jennison Associates LLC 685,200 0 0.0 -7,530,348 3.9 0.1 09-30-09
Vanguard Group, Inc. 670,238 15,019 2.3 -6,544,827 3.9 0.0 09-30-09
S.A.C. Capital Advisors, LP 637,500 227,500 55.5 5,431,300 3.7 0.4 09-30-09
Pioneer Investment Management, Inc. 588,926 -123,045 -17.3 -13,199,167 3.4 0.1 09-30-09
Invesco Aim Management Group, Inc. 583,915 19,880 3.5 -5,330,386 3.4 0.1 09-30-09
AllianceBernstein L.P. 506,958 123,693 32.3 1,190,827 2.9 0.0 09-30-09
Columbia Management Advisors, LLC 481,609 -23,543 -4.7 -6,579,979 2.8 0.0 09-30-09
Brookside Capital Investors, L.P. 456,629 -251,736 -35.5 -18,780,760 2.6 0.3 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 1:26 AM Eastern Time