Union Pacific Corporation
MX ˙ BMV ˙ US9078181081
SecurityMX:UNP / Union Pacific Corporation
InstitutionState Street Corp
Latest Disclosed Ownership26,587,866 shares
Latest Disclosed Value $ 6,450,748,049
State Street Corp reports 0.98% increase in ownership of UNP / Union Pacific Corporation

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 26,587,866 shares of Union Pacific Corporation (MX:UNP) valued at $6,450,748,049 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 26,330,080 shares of Union Pacific Corporation. This represents a change in shares of 0.98% 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)
2026-05-15 2026-03-31 13F UNION PAC COM 907818108 26,587,866 257,786 0.98 6,450,748 5.91 0.2227
2026-02-13 2025-12-31 13F UNION PAC COM 907818108 26,330,080 1,082,285 4.29 6,090,674 2.06 0.2043
2025-11-14 2025-09-30 13F UNION PAC COM 907818108 25,247,795 13,085 0.05 5,967,821 2.79 0.2069
2025-08-14 2025-06-30 13F UNION PAC COM 907818108 25,234,710 -226,405 -0.89 5,806,002 -3.47 0.2176
2025-05-15 2025-03-31 13F UNION PAC COM 907818108 25,461,115 170,354 0.67 6,014,934 4.29 0.2479
2025-02-14 2024-12-31 13F UNION PAC COM 907818108 25,290,761 502,424 2.03 5,767,257 -5.61 0.2275
2024-11-14 2024-09-30 13F UNION PAC COM 907818108 24,788,337 217,780 0.89 6,109,829 9.90 0.2486
2024-08-14 2024-06-30 13F UNION PAC COM 907818108 24,570,557 -96,165 -0.39 5,559,334 -8.36 0.2429
2024-05-15 2024-03-31 13F UNION PAC COM 907818108 24,666,722 -67,811 -0.27 6,066,287 -0.15 0.2712
2024-02-14 2023-12-31 13F UNION PAC COM 907818108 24,734,533 481,420 1.98 6,075,296 23.02 0.2955
2023-11-14 2023-09-30 13F UNION PAC COM 907818108 24,253,113 -526,859 -2.13 4,938,661 -2.60 0.2738
2023-08-14 2023-06-30 13F UNION PAC COM 907818108 24,779,972 -35,673 -0.14 5,070,478 1.52 0.2663
2023-05-15 2023-03-31 13F UNION PAC COM 907818108 24,815,645 -2,344,191 -8.63 4,994,397 -11.19 0.2818
2023-05-15 2022-12-31 13F/A-99 UNION PAC COM 907818108 27,159,836 -256,053 -0.93 5,623,987 5.30 0.3305
2023-05-15 2022-12-31 13F UNION PAC COM 907818108 27,159,836 -256,053 5,623,987 0.3305
2022-11-15 2022-09-30 13F UNION PAC COM 907818108 27,415,889 -309,768 -1.12 5,341,163 -9.68 0.3378
2022-08-15 2022-06-30 13F UNION PAC COM 907818108 27,725,657 -1,139,161 -3.95 5,913,328 -25.02 0.3543
2022-05-16 2022-03-31 13F UNION PAC COM 907818108 28,864,818 1,422,087 5.18 7,886,157 14.07 0.3900
2022-02-14 2021-12-31 13F UNION PAC COM 907818108 27,442,731 108,959 0.40 6,913,647 29.04 0.3279
2021-11-15 2021-09-30 13F UNION PAC COM 907818108 27,333,772 -294,347 -1.07 5,357,693 -11.83 0.2832
2021-08-16 2021-06-30 13F UNION PAC COM 907818108 27,628,119 -360,702 -1.29 6,076,252 -1.50 0.3203
2021-07-09 2021-03-31 13F/A-1 UNION PAC COM 907818108 27,988,821 18,964 0.07 6,169,016 5.93 0.3537
2021-05-17 2021-03-31 13F UNION PAC COM 907818108 27,988,821 18,964 6,169,016 0.3538
2021-02-16 2020-12-31 13F UNION PAC COM 907818108 27,969,857 -529,061 -1.86 5,823,884 3.80 0.3566
2020-11-10 2020-09-30 13F UNION PAC COM 907818108 28,498,918 -577,316 -1.99 5,610,582 14.13 0.3830
2020-08-14 2020-06-30 13F UNION PAC COM 907818108 29,076,234 -1,206,110 -3.98 4,915,919 15.10 0.3574
2020-06-19 2020-03-31 13F/A-1 UNION PAC COM 907818108 30,282,344 -557,444 -1.81 4,271,022 -23.40 0.3735
2020-05-11 2020-03-31 13F UNION PAC COM 907818108 30,282,344 -557,444 4,271,022 375,081.7297
2020-02-06 2019-12-31 13F UNION PACIFIC COM 907818108 30,839,788 1,775,306 6.11 5,575,525 18.43 0.3819
2019-11-14 2019-09-30 13F UNION PACIFIC COM 907818108 29,064,482 -549,143 -1.85 4,707,865 -5.99 0.3509
2019-08-14 2019-06-30 13F UNION PACIFIC COM 907818108 29,613,625 -649,873 -2.15 5,007,960 -1.03 0.3734
2019-05-15 2019-03-31 13F UNION PACIFIC COM 907818108 30,263,498 197,075 0.66 5,060,057 21.75 0.3948
2019-02-12 2018-12-31 13F UNION PAC COM 907818108 30,066,423 -610,560 -1.99 4,156,082 -16.80 0.3784
2018-11-09 2018-09-30 13F UNION PACIFIC Common equity shares 907818108 30,676,983 -238,641 -0.77 4,995,129 14.04 0.3836
2018-08-14 2018-06-30 13F UNION PACIFIC Common equity shares 907818108 30,915,624 -477,703 -1.52 4,380,124 3.79 0.3661
2018-05-15 2018-03-31 13F UNION PACIFIC Common equity shares 907818108 31,393,327 -1,462,995 -4.45 4,220,212 -4.22 0.3583
2018-02-14 2017-12-31 13F UNION PACIFIC Common equity shares 907818108 32,856,322 313,762 0.96 4,406,033 16.75 0.3543
2017-11-14 2017-09-30 13F UNION PACIFIC Common equity shares 907818108 32,542,560 -1,103,237 -3.28 3,773,958 2.99 0.3256
2017-08-14 2017-06-30 13F UNION PACIFIC Common equity shares 907818108 33,645,797 -1,040,409 -3.00 3,664,366 -0.26 0.3241
2017-05-15 2017-03-31 13F UNION PACIFIC Common equity shares 907818108 34,686,206 127,803 0.37 3,673,956 2.54 0.3278
2017-02-09 2016-12-31 13F UNION PACIFIC Common equity shares 907818108 34,558,403 1,407,325 4.25 3,583,032 10.82 0.3372
2017-01-13 2016-09-30 13F/A-1 UNION PACIFIC Common equity shares 907818108 33,151,078 868,979 2.69 3,233,222 14.79 0.3259
2016-11-14 2016-09-30 13F UNION PACIFIC Common equity shares 907818108 23,970,789 2,337,868
2016-08-12 2016-06-30 13F UNION PACIFIC Common equity shares 907818108 32,282,099 -643,363 -1.95 2,816,630 7.54 0.3026
2016-05-20 2016-03-31 13F/A-1 UNION PACIFIC Common equity shares 907818108 32,925,462 195,196 0.60 2,619,216 2.33 0.2832
2016-05-12 2016-03-31 13F UNION PACIFIC Common equity shares 907818108 32,925,462 2,619,216
2016-02-16 2015-12-31 13F UNION PACIFIC Common equity shares 907818108 32,730,266 -591,583 -1.78 2,559,505 -13.12 0.2797
2015-11-16 2015-09-30 13F UNION PACIFIC Common equity shares 907818108 33,321,849 -510,779 -1.51 2,945,977 -8.70 0.3429
2015-08-13 2015-06-30 13F UNION PACIFIC Common equity shares 907818108 33,832,628 -2,134,006 -5.93 3,226,631 -17.17 0.3449
2015-05-15 2015-03-31 13F UNION PACIFIC Common equity shares 907818108 35,966,634 -2,725,854 -7.04 3,895,548 -15.49 0.3998
2015-02-11 2014-12-31 13F UNION PACIFIC Common equity shares 907818108 38,692,488 1,289,057 3.45 4,609,428 13.66 0.4591
2014-11-12 2014-09-30 13F/A-1 UNION PACIFIC Common equity shares 907818108 37,403,431 -675,197 -1.77 4,055,279 6.76 0.4363
2014-11-10 2014-09-30 13F UNION PACIFIC Common equity shares 907818108 37,403,431 4,055,279
2014-08-12 2014-06-30 13F UNION PACIFIC Common equity shares 907818108 38,078,628 19,397,445 103.83 3,798,348 8.35 0.4102
2014-05-15 2014-03-31 13F/A-1 UNION PACIFIC Common equity shares 907818108 18,681,183 -1,094,827 -5.54 3,505,710 5.52 0.3984
2014-05-13 2014-03-31 13F UNION PACIFIC Common equity shares 907818108 18,681,183 3,505,710
2014-02-06 2013-12-31 13F/A-1 UNION PACIFIC Common equity shares 907818108 19,776,010 435,557 2.25 3,322,369 10.59 0.3696
2014-02-06 2013-12-31 13F UNION PACIFIC Common equity shares 907818108 18,528,646 2,329,414
2013-11-12 2013-09-30 13F UNION PACIFIC Common equity shares 907818108 19,340,453 768,352 4.14 3,004,344 4.85 0.3702
2013-08-08 2013-06-30 13F UNION PACIFIC Common equity shares 907818108 18,572,101 18,572,101 2,865,311 0.3736
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.