MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 53,552 Value ($000) $5,637 Avg Close $93.24 Range $81.31 - $107.59
Q4 2024
Shares 105,933 Value ($000) $10,538 Avg Close $98.70 Range $90.33 - $109.75
Q3 2024
Shares 117,166 Value ($000) $13,305 Avg Close $112.96 Range $105.16 - $123.40
Q2 2024
Shares 99,708 Value ($000) $12,344 Avg Close $121.72 Range $114.80 - $127.87
Q1 2024
Shares 93,816 Value ($000) $12,379 Avg Close $115.77 Range $102.41 - $125.66
Q4 2023
Shares 87,626 Value ($000) $9,553 Avg Close $96.81 Range $92.34 - $102.48
Q3 2023
Shares 86,820 Value ($000) $8,938 Avg Close $99.84 Range $95.67 - $106.04
Q2 2023
Shares 81,399 Value ($000) $9,393 Avg Close $104.47 Range $97.02 - $109.95
Q1 2023
Shares 76,509 Value ($000) $8,140 Avg Close $98.68 Range $92.86 - $105.40
Q4 2022
Shares 59,213 Value ($000) $6,570 Avg Close $92.80 Range $77.99 - $103.03
Q3 2022
Shares 55,352 Value ($000) $4,767 Avg Close $80.41 Range $76.51 - $85.75
Q2 2022
Shares 56,511 Value ($000) $5,152 Avg Close $79.21 Range $72.83 - $86.09
Q2 2021
Shares 5,439 Value ($000) $423 Avg Close $64.14 Range $59.83 - $67.79
Q1 2021
Shares 8,548 Value ($000) $659 Avg Close $63.06 Range $58.39 - $69.69
Q4 2020
Shares 10,469 Value ($000) $856 Avg Close $64.85 Range $59.73 - $68.80
Q3 2020
Shares 74,499 Value ($000) $6,180 Avg Close $65.93 Range $60.98 - $70.41
Q2 2020
Shares 88,789 Value ($000) $6,866 Avg Close $62.87 Range $58.07 - $67.36
Q1 2020
Shares 97,124 Value ($000) $7,473 Avg Close $65.09 Range $51.91 - $72.71
Q4 2019
Shares 96,954 Value ($000) $8,818 Avg Close $67.55 Range $62.89 - $73.10
Q3 2019
Shares 97,284 Value ($000) $8,189 Avg Close $65.47 Range $61.22 - $68.01
Q2 2019
Shares 98,514 Value ($000) $8,260 Avg Close $62.14 Range $55.86 - $67.34
Q1 2019
Shares 100,634 Value ($000) $8,370 Avg Close $60.29 Range $55.35 - $64.55
Q4 2018
Shares 103,189 Value ($000) $7,885 Avg Close $56.50 Range $50.42 - $61.17
Q3 2018
Shares 103,919 Value ($000) $7,372 Avg Close $50.65 Range $45.40 - $54.60
Q2 2018
Shares 12,159 Value ($000) $738 Avg Close $44.52 Range $39.72 - $47.34
Q1 2018
Shares 12,159 Value ($000) $662 Avg Close $42.25 Range $39.59 - $47.54
Q4 2017
Shares 12,159 Value ($000) $684 Avg Close $43.00 Range $39.63 - $47.96
Q3 2017
Shares 12,159 Value ($000) $779 Avg Close $46.68 Range $44.87 - $49.08
Q2 2017
Shares 12,159 Value ($000) $779 Avg Close $46.54 Range $45.06 - $48.72
Q1 2017
Shares 90,534 Value ($000) $5,753 Avg Close $46.06 Range $42.70 - $48.31
Q4 2016
Shares 12,159 Value ($000) $716 Avg Close $44.08 Range $41.83 - $46.98
Q3 2016
Shares 12,159 Value ($000) $759 Avg Close $43.73 Range $40.74 - $45.59
Q2 2016
Shares 12,159 Value ($000) $700 Avg Close $39.48 Range $37.06 - $41.09
Q1 2016
Shares 19,659 Value ($000) $1,040 Avg Close $36.03 Range $33.60 - $37.88
Q4 2015
Shares 19,659 Value ($000) $1,038 Avg Close $36.77 Range $33.58 - $38.73
Q3 2015
Shares 19,659 Value ($000) $971 Avg Close $38.40 Range $31.46 - $41.36
Q2 2015
Shares 19,659 Value ($000) $1,119 Avg Close $40.23 Range $38.42 - $42.17
Q1 2015
Shares 17,509 Value ($000) $1,006 Avg Close $40.30 Range $37.94 - $43.13
Q4 2014
Shares 17,509 Value ($000) $994 Avg Close $39.35 Range $35.32 - $41.85
Q3 2014
Shares 17,509 Value ($000) $1,038 Avg Close $39.37 Range $37.12 - $41.03
Q2 2014
Shares 17,509 Value ($000) $1,013 Avg Close $37.96 Range $36.06 - $39.67
Q1 2014
Shares 17,509 Value ($000) $994 Avg Close $35.76 Range $32.43 - $37.92
Q4 2013
Shares 17,509 Value ($000) $876 Avg Close $31.29 Range $29.09 - $32.94
Q3 2013
Shares 3,258,986 Value ($000) $155,157 Avg Close $30.97 Range $29.74 - $31.75
Q2 2013
Shares 3,390,112 Value ($000) $157,470 Avg Close $30.02 Range $28.02 - $32.11