MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q4 2019

Shares 234,540 Value ($000) $21,331 Avg Close $67.55 Range $62.89 - $73.10

Q3 2019

Shares 242,430 Value ($000) $20,408 Avg Close $65.47 Range $61.22 - $68.01

Q2 2019

Shares 524,175 Value ($000) $43,952 Avg Close $62.14 Range $55.86 - $67.34

Q1 2019

Shares 533,359 Value ($000) $44,359 Avg Close $60.29 Range $55.35 - $64.55

Q4 2018

Shares 304,492 Value ($000) $23,266 Avg Close $56.50 Range $50.42 - $61.17

Q2 2015

Shares 357,300 Value ($000) $20,341 Avg Close $40.23 Range $38.42 - $42.17

Q1 2015

Shares 563,450 Value ($000) $32,387 Avg Close $40.30 Range $37.94 - $43.13

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	234,540	$21,331	$67.55	$62.89 - $73.10
Q3 2019	242,430	$20,408	$65.47	$61.22 - $68.01
Q2 2019	524,175	$43,952	$62.14	$55.86 - $67.34
Q1 2019	533,359	$44,359	$60.29	$55.35 - $64.55
Q4 2018	304,492	$23,266	$56.50	$50.42 - $61.17
Q2 2015	357,300	$20,341	$40.23	$38.42 - $42.17
Q1 2015	563,450	$32,387	$40.30	$37.94 - $43.13