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Quanta Services shares owned by William Blair $ Company

Quarter-by-quarter ownership of Quanta Services (PWR) shares owned by William Blair $ Company from 13F filings

Historical chart of William Blair $ Company investment in Quanta Services

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All positions including Quanta Services held by William Blair $ Company consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Quanta Services by William Blair $ Company

Quarter filed Position value Share count Share price at filing
2026-03-31 $124M 226k 549.02
2025-12-31 $34M 80k 422.06
2025-09-30 $16M 39k 414.42
2025-06-30 $14M 37k 378.08
2025-03-31 $9.1M 36k 254.18
2024-12-31 $12M 36k 316.05
2024-09-30 $7.9M 27k 298.15
2024-06-30 $6.4M 25k 254.09
2024-03-31 $6.0M 23k 259.79
2023-12-31 $4.8M 22k 215.80
2023-09-30 $3.9M 21k 187.07
2023-06-30 $3.7M 19k 196.45
2023-03-31 $2.6M 15k 166.64
2022-12-31 $2.5M 18k 142.50
2022-09-30 $2.0M 16k 127.37
2022-06-30 $2.2M 17k 125.34
2022-03-31 $2.1M 16k 131.59
2021-12-31 $1.5M 13k 114.68
2021-09-30 $1.4M 12k 113.82
2021-06-30 $1.1M 12k 90.57
2021-03-31 $1.4M 16k 87.97
2020-12-31 $985k 14k 71.98
2020-09-30 $873k 17k 52.88
2020-06-30 $795k 20k 39.24
2020-03-31 $702k 22k 31.71
2019-12-31 $1.0M 26k 40.73
2019-09-30 $859k 23k 37.81
2019-06-30 $832k 21k 39.13
2019-03-31 $841k 22k 37.73
2018-12-31 $626k 21k 30.11
2018-09-30 $613k 18k 33.36
2018-06-30 $631k 19k 33.40
2018-03-31 $649k 19k 34.36
2017-12-31 $537k 14k 39.08
2017-09-30 $513k 14k 37.34
2017-06-30 $398k 12k 32.93
2017-03-31 $454k 12k 37.26
2016-09-30 $481k 17k 27.97
2016-06-30 $398k 17k 23.14