PATTERSON UTI ENERGY INC

Ticker: PTEN CUSIP: 703481101 Class: Common Stock

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q1 2020
Shares 53,900 Value ($000) $127 Avg Close $6.47 Range $1.80 - $10.95
Q4 2019
Shares 57,200 Value ($000) $601 Avg Close $9.05 Range $7.67 - $10.80
Q3 2019
Shares 58,800 Value ($000) $503 Avg Close $9.81 Range $7.87 - $12.15
Q2 2019
Shares 61,700 Value ($000) $710 Avg Close $12.87 Range $10.07 - $16.27
Q1 2019
Shares 76,200 Value ($000) $1,068 Avg Close $13.11 Range $9.85 - $14.79
Q4 2018
Shares 77,500 Value ($000) $802 Avg Close $14.74 Range $9.49 - $18.24
Q3 2018
Shares 81,400 Value ($000) $1,393 Avg Close $17.18 Range $14.60 - $19.29
Q2 2018
Shares 81,700 Value ($000) $1,471 Avg Close $20.05 Range $16.61 - $23.99
Q1 2018
Shares 81,000 Value ($000) $1,418 Avg Close $20.88 Range $16.82 - $25.03
Q4 2017
Shares 80,000 Value ($000) $1,841 Avg Close $20.72 Range $17.24 - $23.26
Q3 2017
Shares 80,200 Value ($000) $1,679 Avg Close $18.42 Range $14.83 - $21.74
Q2 2017
Shares 68,200 Value ($000) $1,377 Avg Close $21.79 Range $19.06 - $25.75
Q1 2017
Shares 67,600 Value ($000) $1,641 Avg Close $26.97 Range $22.83 - $29.76
Q4 2016
Shares 59,600 Value ($000) $1,604 Avg Close $24.70 Range $20.79 - $29.56
Q3 2016
Shares 59,500 Value ($000) $1,331 Avg Close $20.07 Range $17.61 - $22.66
Q2 2016
Shares 59,100 Value ($000) $1,260 Avg Close $18.84 Range $16.06 - $22.12
Q1 2016
Shares 58,700 Value ($000) $1,034 Avg Close $14.91 Range $10.94 - $18.75
Q4 2015
Shares 58,200 Value ($000) $878 Avg Close $15.38 Range $12.82 - $17.45
Q3 2015
Shares 67,100 Value ($000) $882 Avg Close $15.85 Range $12.97 - $18.80
Q2 2015
Shares 67,400 Value ($000) $1,268 Avg Close $20.74 Range $18.30 - $23.11
Q1 2015
Shares 66,400 Value ($000) $1,247 Avg Close $17.15 Range $13.30 - $19.70
Q4 2014
Shares 69,700 Value ($000) $1,156 Avg Close $21.10 Range $14.01 - $33.28
Q3 2014
Shares 69,300 Value ($000) $2,254 Avg Close $33.96 Range $31.12 - $38.43
Q2 2014
Shares 68,100 Value ($000) $2,379 Avg Close $32.83 Range $30.24 - $35.42
Q1 2014
Shares 67,900 Value ($000) $2,151 Avg Close $27.81 Range $24.37 - $31.95
Q4 2013
Shares 314,700 Value ($000) $7,968 Avg Close $23.93 Range $21.29 - $26.09
Q3 2013
Shares 403,700 Value ($000) $8,631 Avg Close $20.54 Range $18.83 - $22.41
Q2 2013
Shares 402,400 Value ($000) $7,788 Avg Close $21.83 Range $18.96 - $25.12