BERKSHIRE HATHAWAY INC DEL

Ticker: BRK/B CUSIP: 084670702 Class: Common Stock

Municipal Employees' Retirement System of Michigan's Holding History (CIK: 0001588873)

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

Q2 2020

Shares 17,870 Value ($000) $3,190 Avg Close $182.62 Range $167.04 - $203.33

Q1 2020

Shares 44,280 Value ($000) $8,096 Avg Close $212.55 Range $159.50 - $231.61

Q4 2019

Shares 44,100 Value ($000) $9,989 Avg Close $217.17 Range $201.33 - $228.23

Q3 2019

Shares 43,450 Value ($000) $9,038 Avg Close $206.04 Range $195.40 - $216.58

Q2 2019

Shares 43,190 Value ($000) $9,207 Avg Close $206.92 Range $196.89 - $219.16

Q1 2019

Shares 41,620 Value ($000) $8,361 Avg Close $201.85 Range $191.04 - $209.40

Q4 2018

Shares 67,640 Value ($000) $13,811 Avg Close $208.87 Range $186.10 - $224.07

Q2 2018

Shares 66,560 Value ($000) $12,424 Avg Close $194.92 Range $184.75 - $202.77

Q1 2018

Shares 66,430 Value ($000) $13,252 Avg Close $205.34 Range $189.30 - $217.62

Q4 2017

Shares 65,720 Value ($000) $13,028 Avg Close $189.88 Range $180.44 - $200.50

Q3 2017

Shares 66,370 Value ($000) $12,167 Avg Close $176.72 Range $168.00 - $184.00

Q2 2017

Shares 78,680 Value ($000) $13,326 Avg Close $166.33 Range $160.93 - $171.95

Q1 2017

Shares 78,820 Value ($000) $13,137 Avg Close $167.31 Range $158.61 - $177.86

Q4 2016

Shares 78,360 Value ($000) $12,771 Avg Close $153.96 Range $141.92 - $167.25

Q3 2016

Shares 76,210 Value ($000) $11,011 Avg Close $146.25 Range $140.95 - $151.05

Q2 2016

Shares 76,060 Value ($000) $11,013 Avg Close $142.96 Range $136.65 - $148.03

Q1 2016

Shares 65,030 Value ($000) $9,226 Avg Close $132.58 Range $123.55 - $143.40

Q4 2015

Shares 63,950 Value ($000) $8,444 Avg Close $134.20 Range $127.46 - $138.62

Q3 2015

Shares 63,440 Value ($000) $8,273 Avg Close $137.00 Range $125.50 - $144.69

Q2 2015

Shares 61,210 Value ($000) $8,331 Avg Close $142.63 Range $136.08 - $148.57

Q1 2015

Shares 53,900 Value ($000) $7,779 Avg Close $147.14 Range $142.50 - $151.69

Q4 2014

Shares 63,480 Value ($000) $9,532 Avg Close $144.37 Range $132.03 - $152.94

Q3 2014

Shares 62,400 Value ($000) $8,620 Avg Close $133.21 Range $122.72 - $142.45

Q2 2014

Shares 61,400 Value ($000) $7,771 Avg Close $126.57 Range $121.09 - $129.73

Q1 2014

Shares 61,400 Value ($000) $7,673 Avg Close $116.85 Range $108.12 - $125.91

Q4 2013

Shares 60,800 Value ($000) $7,208 Avg Close $115.63 Range $110.84 - $118.66

Q3 2013

Shares 60,800 Value ($000) $6,901 Avg Close $115.36 Range $110.72 - $119.30

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2020	17,870	$3,190	$182.62	$167.04 - $203.33
Q1 2020	44,280	$8,096	$212.55	$159.50 - $231.61
Q4 2019	44,100	$9,989	$217.17	$201.33 - $228.23
Q3 2019	43,450	$9,038	$206.04	$195.40 - $216.58
Q2 2019	43,190	$9,207	$206.92	$196.89 - $219.16
Q1 2019	41,620	$8,361	$201.85	$191.04 - $209.40
Q4 2018	67,640	$13,811	$208.87	$186.10 - $224.07
Q2 2018	66,560	$12,424	$194.92	$184.75 - $202.77
Q1 2018	66,430	$13,252	$205.34	$189.30 - $217.62
Q4 2017	65,720	$13,028	$189.88	$180.44 - $200.50
Q3 2017	66,370	$12,167	$176.72	$168.00 - $184.00
Q2 2017	78,680	$13,326	$166.33	$160.93 - $171.95
Q1 2017	78,820	$13,137	$167.31	$158.61 - $177.86
Q4 2016	78,360	$12,771	$153.96	$141.92 - $167.25
Q3 2016	76,210	$11,011	$146.25	$140.95 - $151.05
Q2 2016	76,060	$11,013	$142.96	$136.65 - $148.03
Q1 2016	65,030	$9,226	$132.58	$123.55 - $143.40
Q4 2015	63,950	$8,444	$134.20	$127.46 - $138.62
Q3 2015	63,440	$8,273	$137.00	$125.50 - $144.69
Q2 2015	61,210	$8,331	$142.63	$136.08 - $148.57
Q1 2015	53,900	$7,779	$147.14	$142.50 - $151.69
Q4 2014	63,480	$9,532	$144.37	$132.03 - $152.94
Q3 2014	62,400	$8,620	$133.21	$122.72 - $142.45
Q2 2014	61,400	$7,771	$126.57	$121.09 - $129.73
Q1 2014	61,400	$7,673	$116.85	$108.12 - $125.91
Q4 2013	60,800	$7,208	$115.63	$110.84 - $118.66
Q3 2013	60,800	$6,901	$115.36	$110.72 - $119.30