| SC 13G/A | 2024-02-13 | VANGUARD GROUP INC | UNION PACIFIC CORP | 57,819,573 | 9.5% | EDGAR |
| SC 13G/A | 2024-01-26 | BlackRock Inc. | UNION PACIFIC CORP | 42,030,360 | 6.9% | EDGAR |
| SC 13G/A | 2023-02-09 | VANGUARD GROUP INC | UNION PACIFIC CORP | 54,266,227 | 8.8% | EDGAR |
| SC 13G/A | 2023-02-07 | BlackRock Inc. | UNION PACIFIC CORP | 42,113,821 | 6.8% | EDGAR |
| SC 13G/A | 2022-02-10 | VANGUARD GROUP INC | UNION PACIFIC CORP | 53,665,479 | 8.4% | EDGAR |
| SC 13G/A | 2022-02-01 | BlackRock Inc. | UNION PACIFIC CORP | 45,849,131 | 7.1% | EDGAR |
| SC 13G/A | 2021-02-10 | VANGUARD GROUP INC | UNION PACIFIC CORP | 56,109,765 | 8.3% | EDGAR |
| SC 13G/A | 2021-02-05 | BlackRock Inc. | UNION PACIFIC CORP | 46,601,555 | 6.9% | EDGAR |
| SC 13G/A | 2020-02-12 | VANGUARD GROUP INC | UNION PACIFIC CORP | 59,984,985 | 8.6% | EDGAR |
| SC 13G/A | 2020-02-06 | BlackRock Inc. | UNION PACIFIC CORP | 46,163,868 | 6.6% | EDGAR |
| SC 13G/A | 2019-02-11 | VANGUARD GROUP INC | UNION PACIFIC CORP | 61,182,023 | 8.3% | EDGAR |
| SC 13G/A | 2019-02-06 | BlackRock Inc. | UNION PACIFIC CORP | 48,020,051 | 6.5% | EDGAR |
| SC 13G/A | 2018-02-14 | Capital Research Global Investors | UNION PACIFIC CORP | 16,091,805 | 2.0% | EDGAR |
| SC 13G/A | 2018-02-09 | VANGUARD GROUP INC | UNION PACIFIC CORP | 62,013,404 | 7.9% | EDGAR |
| SC 13G/A | 2018-01-23 | BlackRock Inc. | UNION PACIFIC CORP | 52,135,521 | 6.6% | EDGAR |
| SC 13G/A | 2017-02-13 | Capital Research Global Investors | UNION PACIFIC CORP | 42,756,715 | 5.1% | EDGAR |
| SC 13G/A | 2017-02-10 | VANGUARD GROUP INC | UNION PACIFIC CORP | 52,252,361 | 6.3% | EDGAR |
| SC 13G/A | 2017-01-27 | BlackRock Inc. | UNION PACIFIC CORP | 48,523,474 | 5.9% | EDGAR |
| SC 13G | 2016-02-16 | Capital Research Global Investors | UNION PACIFIC CORP | 57,409,811 | 6.7% | EDGAR |
| SC 13G/A | 2016-02-11 | VANGUARD GROUP INC | UNION PACIFIC CORP | 49,477,886 | 5.8% | EDGAR |