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COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS > MRK

DateNameTickerSharesChangeValueChangePrice
06/30/2023Merck & Co., Inc.MRK442,53712,72551,064,344,0005,336,645,000$115,390.00
03/31/2023Merck & Co., Inc.MRK429,81259,27145,727,699,00045,695,788,000$106,390.00
09/30/2022Merck & Co., Inc.MRK370,5412,34731,911,000-1,657,000$86.12
06/30/2022Merck & Co., Inc.MRK368,19430,21633,568,0005,837,000$91.17
03/31/2022Merck & Co., Inc.MRK337,97820,92727,731,0003,432,000$82.05
12/31/2021Merck & Co., Inc.MRK317,051-17324,299,000472,000$76.64
09/30/2021Merck & Co., Inc.MRK317,224-1523,827,000-845,000$75.11
06/30/2021Merck & Co., Inc.MRK317,23977924,672,000276,000$77.77
03/31/2021Merck & Co., Inc.MRK316,46032824,396,000-1,464,000$77.09
12/31/2020Merck & Co., Inc.MRK316,13281,78625,860,0006,421,000$81.80
09/30/2020Merck & Co., Inc.MRK234,34690,01519,439,0008,278,000$82.95
06/30/2020Merck & Co., Inc.MRK144,331-18,32611,161,000-1,354,000$77.33
03/31/2020Merck & Co., Inc.MRK162,657-1,29612,515,000-2,397,000$76.94
12/31/2019Merck & Co., Inc.MRK163,953-11514,912,0001,101,000$90.95
09/30/2019Merck & Co., Inc.MRK164,06812,91913,811,0001,137,000$84.18
06/30/2019Merck & Co., Inc.MRK151,14924512,674,000123,000$83.85
03/31/2019Merck & Co., Inc.MRK150,9049,04312,551,0001,711,000$83.17
12/31/2018Merck & Co., Inc.MRK141,861-76,38210,840,000-4,642,000$76.41
09/30/2018Merck & Co., Inc.MRK218,243-63,38215,482,000-1,613,000$70.94
06/30/2018Merck & Co., Inc.MRK281,62540,36617,095,0003,954,000$60.70
03/31/2018Merck & Co., Inc.MRK241,259-3,39613,141,000-626,000$54.47
12/31/2017Merck & Co., Inc.MRK244,65522,21313,767,000-476,000$56.27
09/30/2017Merck & Co., Inc.MRK222,44219,23714,243,0001,220,000$64.03
06/30/2017Merck & Co., Inc.MRK203,205203,20513,023,00013,023,000$64.09
06/30/2013Merck & Co., Inc.MRK0-612,7160-27,082,000 
03/31/2013Merck & Co., Inc.MRK612,716-1,59027,082,0001,932,000$44.20
12/31/2012Merck & Co., Inc.MRK614,306-195,40625,150,000-11,364,000$40.94
09/30/2012Merck & Co., Inc.MRK809,712-114,60136,514,000-2,076,000$45.10
06/30/2012Merck & Co., Inc.MRK924,31388538,590,0003,130,000$41.75
03/31/2012Merck & Co., Inc.MRK923,42865,30435,460,0003,109,000$38.40
12/31/2011Merck & Co., Inc.MRK858,124-111,27932,351,000652,000$37.70
09/30/2011Merck & Co., Inc.MRK969,4031,66431,699,000-2,453,000$32.70
06/30/2011Merck & Co., Inc.MRK967,739-194,72034,152,000-4,221,000$35.29
03/31/2011Merck & Co., Inc.MRK1,162,4593,35238,373,000-3,401,000$33.01
12/31/2010Merck & Co., Inc.MRK1,159,1074,85541,774,000-714,000$36.04
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