Magnetar Financial LLC - AMTRUST FINL SVCS INC ownership

AMTRUST FINL SVCS INC's ticker is and the CUSIP is 032359AC5. A total of 15 filers reported holding AMTRUST FINL SVCS INC in Q4 2013. The put-call ratio across all filers is - and the average weighting 0.4%.

Quarter-by-quarter ownership
Magnetar Financial LLC ownership history of AMTRUST FINL SVCS INC
ValueSharesWeighting
Q2 2014$7,584,000
-59.3%
4,585,000
-63.6%
0.13%
-65.6%
Q1 2014$18,630,000
-6.7%
12,585,000
-16.6%
0.37%
-10.4%
Q4 2013$19,976,000
-15.9%
15,085,0000.0%0.41%
+5.4%
Q3 2013$23,763,000
+12.7%
15,085,0000.0%0.39%
-15.2%
Q2 2013$21,077,00015,085,0000.46%
Other shareholders
AMTRUST FINL SVCS INC shareholders Q4 2013
NameSharesValueWeighting ↓
683 Capital Management, LLC 5,000,000$6,988,0002.34%
DINSMORE CAPITAL MANAGEMENT CO/NJ 2,500,000$3,506,0001.54%
Sage Capital Management, LLC 1,000,000$1,390,0001.45%
SSI INVESTMENT MANAGEMENT LLC 7,500,000$10,480,0001.03%
Calamos Wealth Management LLC 1,212,000$1,704,0000.60%
Nicholas Investment Partners, LP 4,290,000$5,995,0000.56%
Pine River Capital Management L.P. 26,900,000$37,728,0000.56%
BlueCrest Capital Management LLP 7,350,000$10,351,0000.54%
CAMDEN ASSET MANAGEMENT L P /CA 6,800,000$9,503,0000.51%
Magnetar Financial LLC 15,085,000$21,077,0000.46%
View complete list of AMTRUST FINL SVCS INC shareholders