Union Pacific Corporation
CH ˙ SWX ˙ US9078181081
SecurityCH:UNP / Union Pacific Corporation
InstitutionFairfield, Bush & Co.
Latest Disclosed Ownership5,894 shares
Latest Disclosed Value $ 1,430,002
Fairfield, Bush & Co. reports 5.23% decrease in ownership of UNP / Union Pacific Corporation

On May 12, 2026 - Fairfield, Bush & Co. filed a 13F-HR form disclosing ownership of 5,894 shares of Union Pacific Corporation (CH:UNP) valued at $1,430,002 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 6,219 shares of Union Pacific Corporation. This represents a change in shares of -5.23% 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)
2026-05-12 2026-03-31 13F UNION PAC CORP COM Stock 907818108 5,894 -325 -5.23 1,430 -0.56 0.7940
2026-02-13 2025-12-31 13F UNION PAC CORP COM Stock 907818108 6,219 -111 -1.75 1,439 -3.88 0.7590
2025-11-14 2025-09-30 13F UNION PAC CORP COM Stock 907818108 6,330 0 0.00 1,496 2.75 0.7682
2025-08-15 2025-06-30 13F UNION PAC CORP COM Stock 907818108 6,330 210 3.43 1,456 0.76 0.8233
2025-05-13 2025-03-31 13F UNION PAC CORP COM Stock 907818108 6,120 -300 -4.67 1,446 -1.30 0.9171
2025-02-13 2024-12-31 13F UNION PAC CORP COM Stock 907818108 6,420 68 1.07 1,464 -6.45 0.8609
2024-11-12 2024-09-30 13F UNION PAC CORP COM Stock 907818108 6,352 355 5.92 1,566 15.41 0.9312
2024-08-15 2024-06-30 13F UNION PAC CORP COM Stock 907818108 5,997 -704 -10.51 1,357 -17.67 0.8130
2024-05-15 2024-03-31 13F UNION PAC CORP COM Stock 907818108 6,701 -200 -2.90 1,648 -2.77 0.9769
2024-02-13 2023-12-31 13F UNION PAC CORP COM Stock 907818108 6,901 -350 -4.83 1,695 14.77 0.9940
2023-11-15 2023-09-30 13F UNION PAC CORP COM Stock 907818108 7,251 -5,540 -43.31 1,476 -43.60 0.9647
2023-08-15 2023-06-30 13F UNION PAC CORP COM Stock 907818108 12,791 120 0.95 2,617 2.63 0.7206
2023-05-15 2023-03-31 13F UNION PAC CORP COM Stock 907818108 12,671 5,950 88.53 2,550 83.32 0.8982
2023-02-14 2022-12-31 13F UNION PAC CORP COM Stock 907818108 6,721 -440 -6.14 1,392 -0.29 0.9186
2022-11-07 2022-09-30 13F UNION PAC CORP COM Stock 907818108 7,161 175 2.51 1,395 -6.38 0.9849
2022-08-09 2022-06-30 13F UNION PAC CORP COM Stock 907818108 6,986 1,380 24.62 1,490 -2.74 0.8760
2022-05-12 2022-03-31 13F/A-1 UNION PAC CORP COM Stock 907818108 5,606 -1,478 -20.86 1,532 -14.17 0.7683
2022-05-06 2022-03-31 13F UNION PAC CORP COM Stock 907818108 5,606 -1,478 1,532 0.7216
2022-05-12 2021-12-31 13F/A-1 UNION PAC CORP COM Stock 907818108 7,084 -5,892 -45.41 1,785 -29.81 0.8581
2022-02-09 2021-12-31 13F UNION PAC CORP COM Stock 907818108 7,084 -5,892 1,785 0.8525
2021-11-08 2021-09-30 13F Union Pacific Stock 907818108 12,976 1,017 8.50 2,543 -3.31 0.8262
2021-08-02 2021-06-30 13F Union Pacific COM 907818108 11,959 1,220 11.36 2,630 11.16 0.7148
2021-05-14 2021-03-31 13F Union Pacific COM 907818108 10,739 -1,095 -9.25 2,366 -3.98 0.6753
2021-02-12 2020-12-31 13F Union Pacific COM 907818108 11,834 0 0.00 2,464 5.80 0.7185
2020-11-18 2020-09-30 13F Union Pacific COM 907818108 11,834 -1,500 -11.25 2,329 3.33 0.7438
2020-08-13 2020-06-30 13F Union Pacific COM 907818108 13,334 -336 -2.46 2,254 16.91 0.8042
2020-05-13 2020-03-31 13F Union Pacific COM 907818108 13,670 170 1.26 1,928 -21.02 0.8013
2020-02-12 2019-12-31 13F Union Pacific COM 907818108 13,500 -10,535 -43.83 2,441 -37.31 0.8984
2019-11-13 2019-09-30 13F Union Pacific COM 907818108 24,035 -275 -1.13 3,894 -5.28 1.3460
2019-08-13 2019-06-30 13F Union Pacific COM 907818108 24,310 -3,750 -13.36 4,111 -12.38 1.4006
2019-05-15 2019-03-31 13F Union Pacific COM 907818108 28,060 -2,195 -7.25 4,692 12.17 1.5574
2019-02-11 2018-12-31 13F Union Pacific COM 907818108 30,255 1,100 3.77 4,183 -11.88 1.4390
2018-11-13 2018-09-30 13F Union Pacific COM 907818108 29,155 3 0.01 4,747 14.94 1.3324
2018-08-16 2018-06-30 13F Union Pacific COM 907818108 29,152 16 0.05 4,130 5.44 1.2139
2018-05-09 2018-03-31 13F Union Pacific COM 907818108 29,136 13,627 87.87 3,917 88.32 1.1375
2018-02-22 2017-12-31 13F Union Pacific COM 907818108 15,509 808 5.50 2,080 21.99 0.5732
2017-11-14 2017-09-30 13F Union Pacific COM 907818108 14,701 -25 -0.17 1,705 6.30 0.5327
2017-08-15 2017-06-30 13F/A-1 Union Pacific COM 907818108 14,726 -115 -0.77 1,604 2.04 0.5143
2017-08-15 2017-06-30 13F Union Pacific COM 907818108 14,726 1,604
2017-05-08 2017-03-31 13F Union Pacific COM 907818108 14,841 -1,300 -8.05 1,572 -6.04 0.4902
2017-02-15 2016-12-31 13F Union Pacific COM 907818108 16,141 -1,460 -8.29 1,673 -2.51 0.5437
2016-11-15 2016-09-30 13F Union Pacific COM 907818108 17,601 1,275 7.81 1,716 20.51 0.5559
2016-08-15 2016-06-30 13F Union Pacific COM 907818108 16,326 970 6.32 1,424 16.53 0.4941
2016-05-13 2016-03-31 13F Union Pacific COM 907818108 15,356 -135 -0.87 1,222 0.91 0.4368
2016-02-12 2015-12-31 13F Union Pacific COM 907818108 15,491 -12,150 -43.96 1,211 -50.45 0.4237
2015-11-13 2015-09-30 13F Union Pacific COM 907818108 27,641 10,140 57.94 2,444 46.43 1.0735
2015-08-14 2015-06-30 13F Union Pacific COM 907818108 17,501 1,697 10.74 1,669 -2.51 0.5020
2015-05-15 2015-03-31 13F Union Pacific COM 907818108 15,804 0 0.00 1,712 -9.08 0.4993
2015-02-13 2014-12-31 13F Union Pacific COM 907818108 15,804 1,740 12.37 1,883 23.48 0.5397
2014-11-13 2014-09-30 13F Union Pacific COM 907818108 14,064 280 2.03 1,525 10.91 0.4379
2014-08-15 2014-06-30 13F Union Pacific COM 907818108 13,784 9,052 191.29 1,375 54.84 0.4036
2014-05-05 2014-03-31 13F/A-1 Union Pacific COM 907818108 4,732 -1,055 -18.23 888 -8.64 0.4183
2014-05-05 2014-03-31 13F Union Pacific COM 907818108 888 888
2014-02-14 2013-12-31 13F Union Pacific COM 907818108 5,787 -2,075 -26.39 972 -20.39 0.4344
2013-11-13 2013-09-30 13F/A-1 Union Pacific COM 907818108 7,862 -3,380 -30.07 1,221 -29.58 0.3693
2013-11-13 2013-09-30 13F United Technologies COM 907818108 8,412 907
2013-08-15 2013-06-30 13F/A-1 Union Pacific COM 907818108 11,242 11,242 1,734 0.8848
2013-08-15 2013-06-30 13F Union Pacific COM 907818108 11,242 1,734,391
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.