Union Pacific Corporation
CH ˙ SWX ˙ US9078181081
SecurityCH:UNP / Union Pacific Corporation
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership247,555 shares
Latest Disclosed Value $ 60,061,794
Asset Management One Co., Ltd. reports 0.76% decrease in ownership of UNP / Union Pacific Corporation

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 247,555 shares of Union Pacific Corporation (CH:UNP) valued at $60,061,794 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 249,442 shares of Union Pacific Corporation. This represents a change in shares of -0.76% 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)
2026-05-08 2026-03-31 13F UNION PAC COM 907818108 247,555 -1,887 -0.76 60,062 2.69 0.1771
2026-01-27 2025-12-31 13F UNION PAC COM 907818108 249,442 -172 -0.07 58,490 -0.87 0.1626
2025-10-22 2025-09-30 13F UNION PAC COM 907818108 249,614 -4,989 -1.96 59,001 0.72 0.1709
2025-07-31 2025-06-30 13F UNION PAC COM 907818108 254,603 1,792 0.71 58,579 -1.92 0.1837
2025-04-23 2025-03-31 13F UNION PAC COM 907818108 252,811 12,652 5.27 59,724 8.16 0.2066
2025-01-30 2024-12-31 13F UNION PAC COM 907818108 240,159 4,649 1.97 55,220 -4.87 0.1897
2024-10-30 2024-09-30 13F UNION PAC COM 907818108 235,510 -205 -0.09 58,049 8.84 0.2066
2024-07-18 2024-06-30 13F UNION PAC COM 907818108 235,715 922 0.39 53,333 -7.64 0.2040
2024-05-02 2024-03-31 13F UNION PAC COM 907818108 234,793 -13,982 -5.62 57,743 -5.65 0.2225
2024-01-24 2023-12-31 13F UNION PAC COM 907818108 248,775 -2,586 -1.03 61,203 19.57 0.2464
2023-10-19 2023-09-30 13F UNION PAC COM 907818108 251,361 -8,038 -3.10 51,185 -3.57 0.2279
2023-07-31 2023-06-30 13F UNION PAC COM 907818108 259,399 -1,432 -0.55 53,078 1.11 0.2247
2023-04-25 2023-03-31 13F UNION PAC COM 907818108 260,831 -1,402 -0.53 52,495 -4.27 0.2379
2023-02-06 2022-12-31 13F UNION PAC COM 907818108 262,233 -21,428 -7.55 54,838 -0.77 0.2673
2022-11-04 2022-09-30 13F UNION PAC COM 907818108 283,661 -6,441 -2.22 55,262 -10.68 0.2812
2022-07-29 2022-06-30 13F UNION PAC COM 907818108 290,102 -4,416 -1.50 61,872 -23.11 0.2905
2022-05-13 2022-03-31 13F UNION PAC COM 907818108 294,518 -16,547 -5.32 80,469 3.04 0.3141
2022-02-09 2021-12-31 13F UNION PAC COM 907818108 311,065 6,410 2.10 78,098 30.77 0.2721
2021-11-02 2021-09-30 13F UNION PAC COM 907818108 304,655 -56,793 -15.71 59,721 -24.87 0.2290
2021-08-03 2021-06-30 13F UNION PAC COM 907818108 361,448 -31,779 -8.08 79,491 -8.28 0.2958
2021-05-14 2021-03-31 13F UNION PAC COM 907818108 393,227 37,029 10.40 86,671 18.92 0.3442
2021-02-12 2020-12-31 13F UNION PAC COM 907818108 356,198 -9,561 -2.61 72,880 1.22 0.3002
2020-11-13 2020-09-30 13F UNION PAC COM 907818108 365,759 -7,620 -2.04 72,005 14.07 0.3310
2020-08-14 2020-06-30 13F UNION PAC COM 907818108 373,379 -10,915 -2.84 63,124 16.46 0.3104
2020-05-14 2020-03-31 13F UNION PAC COM 907818108 384,294 -12,369 -3.12 54,200 -24.42 0.3165
2020-02-14 2019-12-31 13F UNION PACIFIC COM 907818108 396,663 -4,114 -1.03 71,713 10.46 0.3232
2019-11-14 2019-09-30 13F UNION PACIFIC COM 907818108 400,777 7,247 1.84 64,921 -2.45 0.3127
2019-08-14 2019-06-30 13F UNION PACIFIC COM 907818108 393,530 23,793 6.44 66,549 7.65 0.3269
2019-05-15 2019-03-31 13F UNION PACIFIC COM 907818108 369,737 -871,650 -70.22 61,819 -63.95 0.3343
2019-02-13 2018-12-31 13F UNION PAC COM 907818108 1,241,387 -42,441 -3.31 171,487 -18.00 0.4088
2018-11-14 2018-09-30 13F UNION PAC COM 907818108 1,283,828 6,903 0.54 209,119 15.63 0.4292
2018-08-14 2018-06-30 13F UNION PAC COM 907818108 1,276,925 1,134 0.09 180,847 5.45 0.3953
2018-05-14 2018-03-31 13F UNION PAC COM 907818108 1,275,791 709 0.06 171,505 0.26 0.3862
2018-02-14 2017-12-31 13F UNION PAC COM 907818108 1,275,082 -37,504 -2.86 171,057 12.37 0.3774
2017-11-14 2017-09-30 13F UNION PAC COM 907818108 1,312,586 -19,090 -1.43 152,221 5.01 0.3573
2017-08-14 2017-06-30 13F UNION PAC COM 907818108 1,331,676 -45,194 -3.28 144,959 -0.66 0.3700
2017-05-11 2017-03-31 13F UNION PACIFIC COM 907818108 1,376,870 -130,914 -8.68 145,925 -6.71 0.3831
2017-05-02 2016-12-31 13F/A-1 UNION PACIFIC COM 907818108 1,507,784 1,366,590 967.88 156,421 1,048.04 0.3998
2017-02-13 2016-12-31 13F UNION PACIFIC COM 907818108 1,654,349 171,617
2016-11-07 2016-09-30 13F UNION PACIFIC Com 907818108 141,194 1,958 1.41 13,625 12.94 0.2024
2016-08-03 2016-06-30 13F UNION PACIFIC Com 907818108 139,236 -12,999 -8.54 12,064 -1.11 0.1810
2016-05-05 2016-03-31 13F UNION PACIFIC Com 907818108 152,235 1,132 0.75 12,200 2.69 0.1781
2016-01-28 2015-12-31 13F UNION PACIFIC Com 907818108 151,103 -32,644 -17.77 11,880 -26.20 0.1773
2015-11-12 2015-09-30 13F UNION PACIFIC Com 907818108 183,747 13,572 7.98 16,097 -0.89 0.2450
2015-08-06 2015-06-30 13F UNION PACIFIC Com 907818108 170,175 -9,896 -5.50 16,242 -17.39 0.2250
2015-05-11 2015-03-31 13F UNION PACIFIC Com 907818108 180,071 -38,538 -17.63 19,660 -25.04 0.2427
2015-02-09 2014-12-31 13F UNION PACIFIC Com 907818108 218,609 -29,684 -11.96 26,228 -2.62 0.3404
2014-11-05 2014-09-30 13F UNION PACIFIC Com 907818108 248,293 -7,173 -2.81 26,935 5.77 0.3719
2014-08-12 2014-06-30 13F UNION PACIFIC Com 907818108 255,466 120,083 88.70 25,466 1.16 0.3801
2014-05-05 2014-03-31 13F UNION PACIFIC Com 907818108 135,383 4,955 3.80 25,175 15.70 0.3967
2014-02-05 2013-12-31 13F/A-1 UNION PACIFIC COM 907818108 130,428 -8,115 -5.86 21,759 0.62 0.3372
2014-01-29 2013-12-31 13F UNION PACIFIC COM 907818108 130,428 21,759
2014-02-05 2013-09-30 13F/A-1 UNION PACIFIC COM 907818108 138,543 44,986 48.08 21,626 48.95 0.3254
2013-11-06 2013-09-30 13F UNION PACIFIC Com 907818108 138,543 21,626
2014-02-12 2013-06-30 13F/A-1 UNION PACIFIC COM 907818108 93,557 93,557 14,519 0.2358
2013-08-05 2013-06-30 13F UNION PACIFIC Com 907818108 93,557 14,519
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.