Affiliated Managers shares owned by William Blair $ Company
Quarter-by-quarter ownership of Affiliated Managers (AMG) shares owned by William Blair $ Company
from 13F filings
Historical chart of William Blair $ Company investment in Affiliated Managers
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Quarterly reported holdings in Affiliated Managers by William Blair $ Company
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $2.6M | 11k | 238.43 |
| 2025-06-30 | $2.1M | 11k | 196.77 |
| 2025-03-31 | $2.1M | 12k | 168.03 |
| 2024-12-31 | $2.3M | 12k | 184.92 |
| 2024-09-30 | $2.2M | 13k | 177.80 |
| 2024-06-30 | $2.0M | 13k | 156.23 |
| 2024-03-31 | $2.2M | 13k | 167.47 |
| 2023-12-31 | $1.9M | 13k | 151.42 |
| 2023-09-30 | $1.7M | 13k | 130.34 |
| 2023-06-30 | $2.0M | 13k | 149.89 |
| 2023-03-31 | $2.0M | 14k | 142.42 |
| 2022-12-31 | $2.2M | 14k | 158.43 |
| 2022-09-30 | $1.6M | 14k | 111.87 |
| 2022-06-30 | $1.7M | 14k | 116.58 |
| 2022-03-31 | $2.1M | 15k | 140.94 |
| 2021-12-31 | $2.5M | 15k | 164.48 |
| 2021-09-30 | $2.3M | 15k | 151.10 |
| 2021-06-30 | $2.3M | 15k | 154.22 |
| 2021-03-31 | $2.9M | 19k | 149.05 |
| 2020-12-31 | $2.0M | 19k | 101.70 |
| 2020-09-30 | $1.4M | 20k | 68.36 |
| 2020-06-30 | $6.0M | 81k | 74.56 |
| 2020-03-31 | $4.9M | 82k | 59.14 |
| 2019-12-31 | $7.1M | 84k | 84.74 |
| 2019-09-30 | $8.5M | 102k | 83.35 |
| 2019-06-30 | $9.8M | 107k | 92.14 |
| 2019-03-31 | $15M | 142k | 107.11 |
| 2018-12-31 | $15M | 151k | 97.44 |
| 2018-09-30 | $40M | 295k | 136.72 |
| 2018-06-30 | $51M | 342k | 148.67 |
| 2018-03-31 | $85M | 450k | 189.58 |
| 2017-12-31 | $120M | 586k | 205.25 |
| 2017-09-30 | $118M | 622k | 189.83 |
| 2017-06-30 | $108M | 649k | 165.86 |
| 2017-03-31 | $110M | 665k | 165.47 |
| 2016-12-31 | $96M | 663k | 145.30 |
| 2016-09-30 | $105M | 727k | 144.70 |
| 2016-06-30 | $104M | 738k | 140.77 |
| 2016-03-31 | $133M | 817k | 162.40 |
| 2015-12-31 | $129M | 810k | 159.76 |
| 2015-09-30 | $153M | 894k | 170.99 |
| 2015-06-30 | $527M | 2.4M | 218.60 |
| 2015-03-31 | $545M | 2.5M | 214.78 |
| 2014-12-31 | $507M | 2.4M | 212.24 |
| 2014-09-30 | $422M | 2.1M | 200.36 |
| 2014-06-30 | $439M | 2.1M | 205.40 |
| 2014-03-31 | $443M | 2.2M | 200.05 |
| 2013-12-31 | $437M | 2.0M | 216.88 |
| 2013-09-30 | $434M | 2.4M | 182.64 |
| 2013-06-30 | $358M | 2.2M | 163.94 |
| 2013-03-31 | $331M | 2.2M | 153.57 |
| 2012-12-31 | $276M | 2.1M | 130.15 |
| 2012-09-30 | $249M | 2.0M | 123.00 |
| 2011-12-31 | $213M | 2.2M | 95.95 |
| 2011-09-30 | $181M | 2.3M | 78.05 |
| 2011-03-31 | $191M | 1.7M | 109.37 |