Amphenol Corporation shares owned by William Blair $ Company
Quarter-by-quarter ownership of Amphenol Corporation (APH) shares owned by William Blair $ Company
from 13F filings
Historical chart of William Blair $ Company investment in Amphenol Corporation
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Quarterly reported holdings in Amphenol Corporation by William Blair $ Company
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $341M | 2.8M | 123.75 |
| 2025-06-30 | $293M | 3.0M | 98.75 |
| 2025-03-31 | $199M | 3.0M | 65.59 |
| 2024-12-31 | $213M | 3.1M | 69.45 |
| 2024-09-30 | $202M | 3.1M | 65.16 |
| 2024-06-30 | $211M | 3.1M | 67.37 |
| 2024-03-31 | $177M | 1.5M | 115.35 |
| 2023-12-31 | $152M | 1.5M | 99.13 |
| 2023-09-30 | $130M | 1.5M | 83.99 |
| 2023-06-30 | $131M | 1.5M | 84.95 |
| 2023-03-31 | $125M | 1.5M | 81.72 |
| 2022-12-31 | $117M | 1.5M | 76.14 |
| 2022-09-30 | $102M | 1.5M | 66.96 |
| 2022-06-30 | $98M | 1.5M | 64.38 |
| 2022-03-31 | $115M | 1.5M | 75.35 |
| 2021-12-31 | $135M | 1.5M | 87.46 |
| 2021-09-30 | $112M | 1.5M | 73.23 |
| 2021-06-30 | $105M | 1.5M | 68.41 |
| 2021-03-31 | $103M | 1.6M | 65.97 |
| 2020-12-31 | $105M | 800k | 130.77 |
| 2020-09-30 | $84M | 774k | 108.27 |
| 2020-06-30 | $76M | 795k | 95.81 |
| 2020-03-31 | $58M | 792k | 72.88 |
| 2019-12-31 | $87M | 799k | 108.23 |
| 2019-09-30 | $78M | 806k | 96.50 |
| 2019-06-30 | $78M | 816k | 95.94 |
| 2019-03-31 | $79M | 831k | 94.44 |
| 2018-12-31 | $70M | 864k | 81.02 |
| 2018-09-30 | $82M | 877k | 94.02 |
| 2018-06-30 | $79M | 901k | 87.15 |
| 2018-03-31 | $79M | 919k | 86.13 |
| 2017-12-31 | $82M | 937k | 87.80 |
| 2017-09-30 | $80M | 949k | 84.64 |
| 2017-06-30 | $72M | 980k | 73.82 |
| 2017-03-31 | $71M | 994k | 71.09 |
| 2016-12-31 | $65M | 973k | 67.20 |
| 2016-09-30 | $64M | 981k | 64.92 |
| 2016-06-30 | $57M | 991k | 57.33 |
| 2016-03-31 | $58M | 1.0M | 57.82 |
| 2015-12-31 | $51M | 979k | 52.23 |
| 2015-09-30 | $47M | 927k | 50.96 |
| 2015-06-30 | $53M | 921k | 57.97 |
| 2015-03-31 | $56M | 951k | 58.93 |
| 2014-12-31 | $51M | 952k | 53.81 |
| 2014-09-30 | $49M | 487k | 99.86 |
| 2014-06-30 | $103M | 1.1M | 96.34 |
| 2014-03-31 | $108M | 1.2M | 91.65 |
| 2013-12-31 | $123M | 1.4M | 89.18 |
| 2013-09-30 | $109M | 1.4M | 77.38 |
| 2013-06-30 | $117M | 1.5M | 77.94 |
| 2013-03-31 | $145M | 1.9M | 74.65 |
| 2012-12-31 | $119M | 1.8M | 64.70 |
| 2012-09-30 | $112M | 1.9M | 58.88 |
| 2012-06-30 | $90M | 1.6M | 54.92 |
| 2011-12-31 | $81M | 1.8M | 45.39 |
| 2011-09-30 | $56M | 1.4M | 40.77 |
| 2011-03-31 | $76M | 1.4M | 54.39 |