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Costco
COST

Name Holding Trade Value Shares
Change 		Change in
Stake
Arrowstreet Capital
1001
Arrowstreet Capital
Massachusetts
– -$141M -1,220,709 Closed
SGAM
1002
Smith Group Asset Management
Texas
– -$37.9M -329,379 Closed
ZDA
1003
Zweig-DiMenna Associates
New York
– -$22.5M -195,265 Closed
PP
1004
PDT Partners
New York
– -$8.31M -72,208 Closed
PMAM
1005
Picton Mahoney Asset Management
Ontario, Canada
– -$7.55M -65,600 Closed
DCM
1006
Driehaus Capital Management
Illinois
– -$6.64M -57,675 Closed
Two Sigma Advisers
1007
Two Sigma Advisers
New York
– -$6.85M -57,280 Closed
TAS
1008
TIFF Advisory Services
Pennsylvania
– -$4.92M -42,700 Closed
FCBT
1009
First Citizens Bank & Trust
North Carolina
– -$4.73M -41,107 Closed
SIA
1010
Sit Investment Associates
Minnesota
– -$4.59M -39,840 Closed
Mawer Investment Management
1011
Mawer Investment Management
Alberta, Canada
– -$4.01M -34,820 Closed
QIM
1012
Quantitative Investment Management
Virginia
– -$3.97M -34,500 Closed
TCM
1013
Twin Capital Management
Pennsylvania
– -$2.78M -24,170 Closed
PI
1014
PineBridge Investments
New York
– -$2.6M -22,586 Closed
Lord, Abbett & Co
1015
Lord, Abbett & Co
New Jersey
– -$2.54M -22,062 Closed
GCC
1016
Guardian Capital (Canada)
Ontario, Canada
– -$2.29M -19,920 Closed
BIM
1017
BRC Investment Management
Colorado
– -$2.29M -19,870 Closed
FMBTD
1018
First Midwest Bank Trust Division
Illinois
– -$1.99M -17,310 Closed
Jane Street
1019
Jane Street
New York
– -$1.68M -14,545 Closed
CC
1020
Curian Capital
Colorado
– -$1.27M -11,025 Closed
HI
1021
HBK Investments
Texas
– -$1.1M -9,600 Closed
LG
1022
Leuthold Group
Minnesota
– -$895K -7,767 Closed
CTC (Chicago Trading Company)
1023
CTC (Chicago Trading Company)
Illinois
– -$705K -6,125 Closed
CCM
1024
Cai Capital Management
New York
– -$621K -5,393 Closed
TCM
1025
Tributary Capital Management
Nebraska
– -$599K -5,200 Closed
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