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WESTFIELD CAPITAL MANAGEMENT CO LP > COST

DateNameTickerSharesChangeValueChangePrice
06/30/2023COSTCO WHOLESALE CORP /NEWCOST210,882-4,517113,534,651,0006,509,350,000$538,380.00
03/31/2023COSTCO WHOLESALE CORP /NEWCOST215,39914,226107,025,301,000106,930,293,000$496,870.00
09/30/2022COSTCO WHOLESALE CORP /NEWCOST201,173-3,36795,008,000-3,024,000$472.27
06/30/2022COSTCO WHOLESALE CORP /NEWCOST204,540-1,46698,032,000-20,597,000$479.28
03/31/2022COSTCO WHOLESALE CORP /NEWCOST206,006-27,402118,629,000-13,877,000$575.85
12/31/2021COSTCO WHOLESALE CORP /NEWCOST233,408-82,382132,506,000-9,394,000$567.70
09/30/2021COSTCO WHOLESALE CORP /NEWCOST315,790-4,713141,900,00015,087,000$449.35
06/30/2021COSTCO WHOLESALE CORP /NEWCOST320,503316,986126,813,000125,488,000$395.67
12/31/2020COSTCO WHOLESALE CORP /NEWCOST3,517-1,2691,325,000-374,000$376.74
09/30/2020COSTCO WHOLESALE CORP /NEWCOST4,7861,1301,699,000590,000$354.99
06/30/2020COSTCO WHOLESALE CORP /NEWCOST3,6563,6561,109,0001,109,000$303.34
03/31/2019COSTCO WHOLESALE CORP /NEWCOST0-380,3530-77,482,000 
12/31/2018COSTCO WHOLESALE CORP /NEWCOST380,353-177,06677,482,000-53,445,000$203.71
09/30/2018COSTCO WHOLESALE CORP /NEWCOST557,419-9,319130,927,00012,490,000$234.88
06/30/2018COSTCO WHOLESALE CORP /NEWCOST566,738191,024118,437,00047,641,000$208.98
03/31/2018COSTCO WHOLESALE CORP /NEWCOST375,714375,71470,796,00070,796,000$188.43
12/31/2016COSTCO WHOLESALE CORP /NEWCOST0-6,1700-941,000 
09/30/2016COSTCO WHOLESALE CORP /NEWCOST6,170-633,966941,000-91,603,000$152.51
06/30/2016COSTCO WHOLESALE CORP /NEWCOST593,085-203,99793,138,000-35,591,000$157.04
03/31/2016COSTCO WHOLESALE CORP /NEWCOST771,845-25,237121,627,000-7,102,000$157.58
12/31/2015COSTCO WHOLESALE CORP /NEWCOST797,082156,946128,729,00036,185,000$161.50
09/30/2015COSTCO WHOLESALE CORP /NEWCOST640,136-56,33892,544,000-1,522,000$144.57
06/30/2015COSTCO WHOLESALE CORP /NEWCOST696,474-69,98594,066,000-22,049,000$135.06
03/31/2015COSTCO WHOLESALE CORP /NEWCOST766,459766,459116,115,000116,115,000$151.50
12/31/2014COSTCO WHOLESALE CORP /NEWCOST0-1,006,9550-126,192,000 
09/30/2014COSTCO WHOLESALE CORP /NEWCOST1,006,955-14,829126,192,0008,523,000$125.32
06/30/2014COSTCO WHOLESALE CORP /NEWCOST1,021,784-308,556117,669,000-30,903,000$115.16
03/31/2014COSTCO WHOLESALE CORP /NEWCOST1,330,340-42,794148,572,000-14,858,000$111.68
12/31/2013COSTCO WHOLESALE CORP /NEWCOST1,373,1341,373,134163,430,000163,430,000$119.02
09/30/2013COSTCO WHOLESALE CORP /NEWCOST1,388,192-182,279159,878,000-13,769,000$115.17
06/30/2013COSTCO WHOLESALE CORP /NEWCOST1,570,471348,726173,647,00044,008,000$110.57
03/31/2013COSTCO WHOLESALE CORP /NEWCOST1,221,745464,145129,639,00054,841,000$106.11
12/31/2012COSTCO WHOLESALE CORP /NEWCOST757,600757,60074,798,00074,798,000$98.73
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