Marathon Petroleum has retired 60.6% of its shares since 2009, from 712,000,000 to 280,824,763.
Early years use the fiscal-year average share count from the 10-K.
| Fiscal year | Date | Shares outstanding | Filing | |
|---|---|---|---|---|
| 2009 | 2009-12-31 | 712,000,000 | 10-K | fiscal-year average |
| 2010 | 2010-12-31 | 712,000,000 | 10-K | fiscal-year average |
| 2011 | 2012-02-15 | 695,228,266 | 10-K | |
| 2012 | 2013-02-15 | 662,867,852 | 10-K | |
| 2013 | 2014-02-14 | 589,128,462 | 10-K | |
| 2014 | 2015-02-13 | 546,125,760 | 10-K | |
| 2015 | 2016-02-12 | 529,227,453 | 10-K | |
| 2016 | 2017-02-13 | 527,782,929 | 10-K | |
| 2017 | 2018-02-16 | 476,059,729 | 10-K | |
| 2018 | 2019-02-15 | 673,619,190 | 10-K | |
| 2019 | 2020-02-17 | 649,503,967 | 10-K | |
| 2020 | 2021-02-12 | 651,274,842 | 10-K | |
| 2021 | 2022-02-15 | 565,212,958 | 10-K | |
| 2022 | 2023-02-16 | 445,546,907 | 10-K | |
| 2023 | 2024-02-23 | 361,358,732 | 10-K | |
| 2024 | 2025-02-21 | 312,575,833 | 10-K | |
| 2025 | 2026-02-20 | 294,740,164 | 10-K |
Source: all 10-K filings of Marathon Petroleum on EDGAR. Download this series as CSV. Licence CC BY 4.0, credit Buyback Radar.
Part of every buyback only replaces shares handed to employees. That part costs money and retires nothing, so the cost per share that disappeared is higher than the average price the company paid.
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