Union Pacific Corporation
CL ˙ SNSE ˙ US9078181081
SecurityCL:UNP / Union Pacific Corporation
InstitutionDodge & Cox
Latest Disclosed Ownership260,952 shares
Latest Disclosed Value $ 63,312,174
Dodge & Cox reports 0.82% decrease in ownership of UNP / Union Pacific Corporation

On May 14, 2026 - Dodge & Cox filed a 13F-HR form disclosing ownership of 260,952 shares of Union Pacific Corporation (CL:UNP) valued at $63,312,174 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 263,116 shares of Union Pacific Corporation. This represents a change in shares of -0.82% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F Union Pacific COM 907818108 260,952 -2,164 -0.82 63,312 4.02 0.0348
2026-02-13 2025-12-31 13F Union Pacific COM 907818108 263,116 -9,765 -3.58 60,864 -5.64 0.0329
2025-11-13 2025-09-30 13F Union Pacific COM 907818108 272,881 -2,560 -0.93 64,501 1.78 0.0348
2025-08-13 2025-06-30 13F Union Pacific COM 907818108 275,441 -521 -0.19 63,373 -2.79 0.0356
2025-05-14 2025-03-31 13F Union Pacific COM 907818108 275,962 -2,257 -0.81 65,193 2.76 0.0372
2025-02-13 2024-12-31 13F Union Pacific COM 907818108 278,219 -4,013 -1.42 63,445 -8.80 0.0369
2024-11-13 2024-09-30 13F Union Pacific COM 907818108 282,232 -350 -0.12 69,565 8.80 0.0393
2024-08-13 2024-06-30 13F Union Pacific COM 907818108 282,582 -609 -0.22 63,937 -8.20 0.0384
2024-05-14 2024-03-31 13F Union Pacific COM 907818108 283,191 -1,437 -0.50 69,645 -0.38 0.0404
2024-02-22 2023-12-31 13F/A-1 Union Pacific COM 907818108 284,628 18,514 6.96 69,910 29.01 0.0444
2024-02-15 2023-12-31 13F Union Pacific COM 907818108 284,628 18,514 69,910 0.0444
2023-11-14 2023-09-30 13F Union Pacific COM 907818108 266,114 -2,476 -0.92 54,189 -1.40 0.0365
2023-08-14 2023-06-30 13F Union Pacific COM 907818108 268,590 -3,450 -1.27 54,959 0.38 0.0367
2023-05-12 2023-03-31 13F Union Pacific COM 907818108 272,040 -3,410 -1.24 54,751 -4.01 0.0373
2023-02-14 2022-12-31 13F Union Pacific COM 907818108 275,450 -7,572 -2.68 57,037 3.44 0.0391
2022-11-10 2022-09-30 13F Union Pacific COM 907818108 283,022 -3,055 -1.07 55,138 -9.63 0.0418
2022-08-12 2022-06-30 13F Union Pacific COM 907818108 286,077 -5,549 -1.90 61,015 -23.42 0.0422
2022-05-13 2022-03-31 13F Union Pacific COM 907818108 291,626 -7,807 -2.61 79,675 5.62 0.0484
2022-02-14 2021-12-31 13F UNION PACIFIC COM 907818108 299,433 -3,281 -1.08 75,436 27.14 0.0467
2021-11-15 2021-09-30 13F UNION PACIFIC COM 907818108 302,714 -8,312 -2.67 59,335 -13.26 0.0386
2021-08-13 2021-06-30 13F Union Pacific COM 907818108 311,026 -10,475 -3.26 68,404 -3.47 0.0447
2021-05-14 2021-03-31 13F UNION PACIFIC COM 907818108 321,501 -3,468 -1.07 70,862 4.72 0.0507
2021-02-11 2020-12-31 13F Union Pacific COM 907818108 324,969 -20,140 -5.84 67,665 -0.41 0.0535
2020-11-13 2020-09-30 13F Union Pacific COM 907818108 345,109 -10,215 -2.87 67,942 13.10 0.0622
2020-08-13 2020-06-30 13F Union Pacific COM 907818108 355,324 -5,088 -1.41 60,075 18.18 0.0552
2020-05-14 2020-03-31 13F Union Pacific COM 907818108 360,412 -18,356 -4.85 50,833 -25.77 0.0550
2020-02-13 2019-12-31 13F Union Pacific COM 907818108 378,768 -11,226 -2.88 68,477 8.40 0.0524
2019-11-13 2019-09-30 13F Union Pacific COM 907818108 389,994 -14,397 -3.56 63,171 -7.63 0.0520
2019-08-13 2019-06-30 13F Union Pacific COM 907818108 404,391 -3,763,051 -90.30 68,387 -90.19 0.0553
2019-05-14 2019-03-31 13F Union Pacific COM 907818108 4,167,442 -76,726 -1.81 696,796 18.77 0.5720
2019-02-14 2018-12-31 13F Union Pacific COM 907818108 4,244,168 -5,810,406 -57.79 586,671 -64.17 0.5375
2018-11-21 2018-09-30 13F/A-1 Union Pacific COM 907818108 10,054,574 -82,302 -0.81 1,637,186 13.99 1.2524
2018-11-14 2018-09-30 13F Union Pacific COM 907818108 10,054,574 -82,302 1,637,186
2018-08-14 2018-06-30 13F Union Pacific COM 907818108 10,136,876 -3,080,583 -23.31 1,436,193 -19.17 1.1475
2018-05-14 2018-03-31 13F Union Pacific COM 907818108 13,217,459 -264,120 -1.96 1,776,823 -1.72 1.4345
2018-02-14 2017-12-31 13F Union Pacific COM 907818108 13,481,579 -135,790 -1.00 1,807,880 14.48 1.4005
2017-11-13 2017-09-30 13F Union Pacific COM 907818108 13,617,369 135,340 1.00 1,579,206 7.55 1.2703
2017-08-11 2017-06-30 13F Union Pacific COMMON STOCK 907818108 13,482,029 -166,379 -1.22 1,468,328 1.57 1.2382
2017-05-12 2017-03-31 13F Union Pacific SHS 907818108 13,648,408 -363,257 -2.59 1,445,639 -0.49 1.2282
2017-03-20 2016-12-31 13F/A-1 Union Pacific COM 907818108 14,011,665 -398,474 -2.77 1,452,729 3.37 1.2908
2017-02-14 2016-12-31 13F Union Pacific COM 907818108 14,016,965 1,453,279
2016-11-14 2016-09-30 13F Union Pacific COM 907818108 14,410,139 -778,810 -5.13 1,405,421 6.05 1.3207
2016-08-12 2016-06-30 13F Union Pacific COM 907818108 15,188,949 2,936,275 23.96 1,325,236 35.96 1.3088
2016-05-13 2016-03-31 13F Union Pacific COM 907818108 12,252,674 11,965,075 4,160.33 974,700 4,233.93 0.9535
2016-02-12 2015-12-31 13F Union Pacific COM 907818108 287,599 -5,961 -2.03 22,490 -13.35 0.0221
2015-11-12 2015-09-30 13F Union Pacific COM 907818108 293,560 -6,200 -2.07 25,954 -9.21 0.0261
2015-08-13 2015-06-30 13F Union Pacific COM 907818108 299,760 -6,475 -2.11 28,588 -13.81 0.0258
2015-05-14 2015-03-31 13F Union Pacific COM 907818108 306,235 -14,350 -4.48 33,168 -13.15 0.0306
2015-02-13 2014-12-31 13F Union Pacific COM 907818108 320,585 -15,109 -4.50 38,191 4.93 0.0355
2014-11-13 2014-09-30 13F UNION PACIFIC COM 907818108 335,694 -4,498 -1.32 36,396 7.26 0.0348
2014-08-13 2014-06-30 13F UNION PACIFIC COM 907818108 340,192 163,193 92.20 33,934 2.16 0.0324
2014-05-14 2014-03-31 13F UNION PACIFIC COM 907818108 176,999 -2,433 -1.36 33,216 10.19 0.0340
2014-02-14 2013-12-31 13F UNION PACIFIC COM 907818108 179,432 -1,828 -1.01 30,145 7.06 0.0314
2013-11-13 2013-09-30 13F UNION PACIFIC COM 907818108 181,260 -1,050 -0.58 28,157 0.11 0.0320
2013-08-13 2013-06-30 13F UNION PACIFIC COM 907818108 182,310 182,310 28,127 0.0334
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.