International Business Machines shares owned by Main Street Research
Quarter-by-quarter ownership of International Business Machines (IBM) shares owned by Main Street Research
from 13F filings
Historical chart of Main Street Research investment in International Business Machines
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Quarterly reported holdings in International Business Machines by Main Street Research
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $365k | 1.3k | 282.16 |
| 2025-06-30 | $406k | 1.4k | 294.78 |
| 2025-03-31 | $355k | 1.4k | 248.66 |
| 2024-12-31 | $365k | 1.7k | 219.83 |
| 2024-09-30 | $311k | 1.4k | 221.14 |
| 2024-06-30 | $238k | 1.4k | 172.99 |
| 2024-03-31 | $261k | 1.4k | 190.97 |
| 2023-12-31 | $269k | 1.6k | 163.55 |
| 2022-09-30 | $202k | 1.7k | 118.61 |
| 2022-03-31 | $374k | 2.9k | 129.91 |
| 2021-12-31 | $270k | 2.0k | 133.47 |
| 2021-09-30 | $229k | 1.6k | 138.87 |
| 2021-06-30 | $225k | 1.5k | 146.77 |
| 2021-03-31 | $274k | 2.1k | 133.07 |
| 2019-09-30 | $1.6M | 11k | 145.42 |
| 2019-06-30 | $1.6M | 12k | 137.90 |
| 2019-03-31 | $1.6M | 11k | 141.13 |
| 2018-03-31 | $455k | 3.0k | 153.51 |
| 2017-12-31 | $263k | 1.7k | 153.44 |
| 2017-09-30 | $296k | 2.0k | 145.17 |
| 2017-06-30 | $326k | 2.1k | 153.70 |
| 2017-03-31 | $383k | 2.2k | 174.09 |
| 2016-12-31 | $364k | 2.2k | 165.76 |
| 2016-09-30 | $322k | 2.0k | 158.78 |
| 2016-06-30 | $307k | 2.0k | 151.60 |
| 2016-03-31 | $227k | 1.5k | 151.33 |
| 2015-12-31 | $373k | 2.7k | 137.54 |
| 2015-09-30 | $394k | 2.8k | 140.06 |
| 2015-06-30 | $409k | 2.5k | 162.75 |
| 2015-03-31 | $356k | 2.2k | 160.36 |
| 2014-12-31 | $268k | 1.7k | 160.48 |
| 2014-09-30 | $400k | 2.1k | 189.75 |
| 2014-06-30 | $382k | 2.1k | 181.21 |
| 2014-03-31 | $402k | 2.1k | 192.44 |
| 2013-12-31 | $2.8M | 15k | 187.55 |
| 2013-09-30 | $5.3M | 29k | 185.17 |
| 2013-06-30 | $5.6M | 29k | 191.10 |
| 2013-03-31 | $6.1M | 29k | 213.29 |
| 2012-12-31 | $5.4M | 28k | 191.55 |
| 2012-09-30 | $5.9M | 28k | 207.46 |
| 2012-06-30 | $5.5M | 28k | 195.57 |
| 2012-03-31 | $5.4M | 26k | 208.67 |
| 2011-12-31 | $5.1M | 28k | 183.87 |
| 2011-09-30 | $4.8M | 28k | 174.87 |
| 2011-06-30 | $4.8M | 28k | 171.55 |
| 2011-03-31 | $4.0M | 24k | 163.07 |
| 2010-12-31 | $3.2M | 22k | 146.76 |
| 2010-09-30 | $2.8M | 21k | 134.15 |
| 2010-06-30 | $2.3M | 19k | 123.47 |
| 2010-03-31 | $4.0M | 31k | 128.24 |
| 2009-12-31 | $3.7M | 28k | 130.89 |
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