Union Pacific Corporation
US ˙ NYSE ˙ US9078181081

SecurityUNP / Union Pacific Corporation
InstitutionAdvisory Research Inc
Latest Disclosed Ownership5,759 shares
Latest Disclosed Value $ 1,397,249
Advisory Research Inc reports 5.70% decrease in ownership of UNP / Union Pacific Corporation

On May 14, 2026 - Advisory Research Inc filed a 13F-HR form disclosing ownership of 5,759 shares of Union Pacific Corporation (US:UNP) valued at $1,397,249 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 6,107 shares of Union Pacific Corporation. This represents a change in shares of -5.70% during the quarter. The current value of the position is $1,519,800 USD.

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 PAC COM 907818108 5,759 -348 -5.70 1,397 -1.06 0.1718
2026-02-13 2025-12-31 13F UNION PAC COM 907818108 6,107 145 2.43 1,413 0.21 0.1775
2025-11-13 2025-09-30 13F UNION PAC COM 907818108 5,962 -223 -3.61 1,409 -0.98 0.1851
2025-08-13 2025-06-30 13F UNION PAC COM 907818108 6,185 -145 -2.29 1,423 -4.82 0.2186
2025-05-14 2025-03-31 13F UNION PAC COM 907818108 6,330 -320 -4.81 1,495 -1.39 0.2636
2025-02-13 2024-12-31 13F UNION PAC COM 907818108 6,650 104 1.59 1,516 -6.01 0.2520
2024-11-14 2024-09-30 13F UNION PAC COM 907818108 6,546 494 8.16 1,613 17.82 0.2866
2024-08-13 2024-06-30 13F UNION PAC COM 907818108 6,052 -93 -1.51 1,369 -9.40 0.2576
2024-05-14 2024-03-31 13F UNION PAC COM 907818108 6,145 -20 -0.32 1,511 -0.20 0.3005
2024-02-13 2023-12-31 13F Union Pacific COM 907818108 6,165 -925 -13.05 1,514 4.92 0.2336
2023-11-13 2023-09-30 13F Union Pacific COM 907818108 7,090 -231 -3.16 1,444 -3.67 0.2005
2023-08-14 2023-06-30 13F Union Pacific COM 907818108 7,321 -544 -6.92 1,498 -5.31 0.1921
2023-05-12 2023-03-31 13F Union Pacific COM 907818108 7,865 967 14.02 1,583 10.78 0.2602
2023-02-13 2022-12-31 13F Union Pacific COM 907818108 6,898 926 15.51 1,428 22.79 0.1344
2022-11-15 2022-09-30 13F Union Pacific COM 907818108 5,972 -32 -0.53 1,163 -9.21 0.1137
2022-08-17 2022-06-30 13F/A-1 Union Pacific COM 907818108 6,004 0 0.00 1,281 -21.89 0.1251
2022-08-15 2022-06-30 13F Union Pacific COM 907818108 6,004 0 1,640 0.1011
2022-05-16 2022-03-31 13F Union Pacific COM 907818108 6,004 -1,735 -22.42 1,640 -15.90 0.1314
2022-02-11 2021-12-31 13F Union Pacific COM 907818108 7,739 419 5.72 1,950 35.98 0.1534
2021-11-12 2021-09-30 13F Union Pacific COM 907818108 7,320 -38 -0.52 1,434 -11.37 0.0921
2021-08-16 2021-06-30 13F Union Pacific COM 907818108 7,358 -87 -1.17 1,618 -1.40 0.1065
2021-05-12 2021-03-31 13F Union Pacific COM 907818108 7,445 98 1.33 1,641 7.25 0.1156
2021-02-12 2020-12-31 13F Union Pacific COM 907818108 7,347 0 0.00 1,530 5.81 0.1122
2020-11-12 2020-09-30 13F Union Pacific COM 907818108 7,347 -2,076 -22.03 1,446 -9.23 0.1410
2020-08-13 2020-06-30 13F Union Pacific COM 907818108 9,423 -3,805 -28.76 1,593 -14.63 0.1417
2020-05-12 2020-03-31 13F Union Pacific COM 907818108 13,228 -1,776 -11.84 1,866 -31.22 0.1293
2020-02-11 2019-12-31 13F Union Pacific COM 907818108 15,004 -325 -2.12 2,713 9.26 0.1247
2019-11-12 2019-09-30 13F Union Pacific COM 907818108 15,329 -51 -0.33 2,483 -4.54 0.1195
2019-08-14 2019-06-30 13F Union Pacific COM 907818108 15,380 -235 -1.50 2,601 -0.38 0.0511
2019-05-15 2019-03-31 13F Union Pacific COM 907818108 15,615 -596 -3.68 2,611 16.51 0.0504
2019-02-13 2018-12-31 13F Union Pacific COM 907818108 16,211 -93 -0.57 2,241 -15.59 0.0475
2018-11-13 2018-09-30 13F Union Pacific COM 907818108 16,304 -321 -1.93 2,655 12.74 0.0434
2018-08-14 2018-06-30 13F Union Pacific COM 907818108 16,625 321 1.97 2,355 7.44 0.0377
2018-05-15 2018-03-31 13F Union Pacific COM 907818108 16,304 -1,644 -9.16 2,192 -8.93 0.0394
2018-02-08 2017-12-31 13F Union Pacific COM 907818108 17,948 -27 -0.15 2,407 15.44 0.0398
2017-11-14 2017-09-30 13F Union Pacific COM 907818108 17,975 -3,535 -16.43 2,085 -11.01 0.0332
2017-08-22 2017-06-30 13F/A-1 Union Pacific COM 907818108 21,510 -4,822 -18.31 2,343 -15.99 0.0369
2017-08-14 2017-06-30 13F UNION PACIFIC COM 907818108 26,332 0 2,789
2017-05-15 2017-03-31 13F UNION PACIFIC COM 907818108 26,332 -8,587 -24.59 2,789 -22.96 0.0411
2017-02-13 2016-12-31 13F UNION PACIFIC COM 907818108 34,919 -5,302 -13.18 3,620 -7.72 0.0538
2016-11-14 2016-09-30 13F/A-1 UNION PACIFIC COM 907818108 40,221 -1,117 -2.70 3,923 8.76 0.0638
2016-11-14 2016-09-30 13F UNION PACIFIC COM 907818108 219,783 37,620
2016-08-15 2016-06-30 13F Union Pacific COM 907818108 41,338 -35,386 -46.12 3,607 -40.90 0.0621
2016-05-16 2016-03-31 13F Union Pacific COM 907818108 76,724 -123,363 -61.65 6,103 -61.00 0.1154
2016-02-16 2015-12-31 13F Union Pacific COM 907818108 200,087 -18,347 -8.40 15,647 -18.98 0.2372
2015-11-13 2015-09-30 13F Union Pacific COM 907818108 218,434 7,593 3.60 19,312 -3.96 0.2748
2015-08-17 2015-06-30 13F/A-1 Union Pacific COM 907818108 210,841 24,803 13.33 20,108 -0.21 0.2283
2015-08-14 2015-06-30 13F Ventas COM 907818108 15,510 963
2015-05-15 2015-03-31 13F Union Pacific COM 907818108 186,038 -31,928 -14.65 20,150 -22.40 0.2203
2015-02-13 2014-12-31 13F Union Pacific COM 907818108 217,966 -109,037 -33.34 25,966 -26.76 0.2702
2014-11-06 2014-09-30 13F Union Pacific COM 907818108 327,003 -16,250 -4.73 35,454 3.55 0.3432
2014-08-14 2014-06-30 13F Union Pacific COM 907818108 343,253 163,691 91.16 34,239 1.61 0.3176
2014-05-15 2014-03-31 13F UNION PACIFIC COM 907818108 179,562 7,806 4.54 33,697 16.78 0.3479
2014-02-14 2013-12-31 13F UNION PAC COM 907818108 171,756 14,570 9.27 28,855 18.17 0.2969
2013-11-14 2013-09-30 13F UNION PAC COM 907818108 157,186 111 0.07 24,418 0.76 0.2628
2013-08-08 2013-06-30 13F UNION PAC COM 907818108 157,075 157,075 24,234 0.2741
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.