Union Pacific Corporation
US ˙ NYSE ˙ US9078181081

SecurityUNP / Union Pacific Corporation
InstitutionAssetmark, Inc
Latest Disclosed Ownership68,937 shares
Latest Disclosed Value $ 16,725,461
Assetmark, Inc reports 6.43% increase in ownership of UNP / Union Pacific Corporation

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 68,937 shares of Union Pacific Corporation (US:UNP) valued at $16,725,495 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 64,774 shares of Union Pacific Corporation. This represents a change in shares of 6.43% during the quarter. The current value of the position is $18,070,456 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)
2026-05-06 2026-03-31 13F UNION PAC COM 907818108 68,937 4,163 6.43 16,725 11.63 0.0341
2026-01-23 2025-12-31 13F UNION PAC COM 907818108 64,774 3,580 5.85 14,984 3.59 0.0306
2025-11-06 2025-09-30 13F UNION PAC COM 907818108 61,194 16,803 37.85 14,465 41.62 0.0310
2025-08-04 2025-06-30 13F UNION PAC COM 907818108 44,391 6,907 18.43 10,214 15.34 0.0241
2025-05-06 2025-03-31 13F UNION PAC COM 907818108 37,484 1,587 4.42 8,855 8.19 0.0243
2025-02-06 2024-12-31 13F UNION PAC COM 907818108 35,897 5,035 16.31 8,186 7.61 0.0222
2024-11-01 2024-09-30 13F UNION PAC COM 907818108 30,862 2,099 7.30 7,607 16.89 0.0218
2024-08-13 2024-06-30 13F UNION PAC COM 907818108 28,763 -328 -1.13 6,508 -9.04 0.0201
2024-05-07 2024-03-31 13F UNION PAC COM 907818108 29,091 12,487 75.20 7,154 75.43 0.0233
2024-02-09 2023-12-31 13F UNION PAC COM 907818108 16,604 7,321 78.86 4,078 115.77 0.0147
2023-10-27 2023-09-30 13F UNION PAC COM 907818108 9,283 115 1.25 1,890 0.80 0.0076
2023-08-11 2023-06-30 13F UNION PAC CORP COM COM 907818108 9,168 -322 -3.39 1,876 -1.78 0.0074
2023-05-05 2023-03-31 13F UNION PAC CORP COM COM 907818108 9,490 -1,057 -10.02 1,910 -12.55 0.0079
2023-02-10 2022-12-31 13F UNION PAC COM 907818108 10,547 20 0.19 2,184 6.44 0.0095
2022-11-01 2022-09-30 13F UNION PAC COM 907818108 10,527 111 1.07 2,051 -7.65 0.0096
2022-08-03 2022-06-30 13F UNION PAC CORP COM COM 907818108 10,416 3,456 49.66 2,221 16.83 0.0100
2022-05-13 2022-03-31 13F UNION PAC CORP COM COM 907818108 6,960 2,419 53.27 1,901 66.17 0.0080
2022-02-14 2021-12-31 13F UNION PAC CORP COM COM 907818108 4,541 3,057 206.00 1,144 293.13 0.0047
2021-11-12 2021-09-30 13F UNION PAC CORP COM COM 907818108 1,484 -23 -1.53 291 -12.35 0.0013
2021-08-16 2021-06-30 13F UNION PAC CORP COM COM 907818108 1,507 -106 -6.57 332 -6.74 0.0015
2021-05-14 2021-03-31 13F UNION PAC COM 907818108 1,613 -173 -9.69 356 -4.30 0.0018
2021-02-10 2020-12-31 13F UNION PAC CORP COM COM 907818108 1,786 151 9.24 372 15.53 0.0021
2020-11-13 2020-09-30 13F UNION PAC CORP COM COM 907818108 1,635 -93 -5.38 322 10.27 0.0021
2020-08-11 2020-06-30 13F UNION PAC CORP COM COM 907818108 1,728 -819 -32.16 292 -18.66 0.0021
2020-05-12 2020-03-31 13F UNION PAC CORP COM COM 907818108 2,547 -461 -15.33 359 -34.01 0.0030
2020-02-11 2019-12-31 13F UNION PACIFIC CORP COM COM 907818108 3,008 74 2.52 544 14.53 0.0041
2019-11-13 2019-09-30 13F UNION PACIFIC CORP COM COM 907818108 2,934 -1,538 -34.39 475 -37.17 0.0040
2019-08-14 2019-06-30 13F UNION PACIFIC CORP COM COM 907818108 4,472 48 1.08 756 2.16 0.0062
2019-05-14 2019-03-31 13F UNION PACIFIC CORP COM COM 907818108 4,424 4,424 740 0.0067
2019-02-13 2018-12-31 13F UNION PAC CORP COM COM 907818108 0 -2,976 -100.00 0 -100.00
2018-11-13 2018-09-30 13F UNION PAC CORP COM COM 907818108 2,976 -49 -1.62 485 13.05 0.0044
2018-08-01 2018-06-30 13F UNION PAC CORP COM COM 907818108 3,025 63 2.13 429 7.79 0.0042
2018-05-16 2018-03-31 13F UNION PAC CORP COM COM 907818108 2,962 -380 -11.37 398 -11.16 0.0041
2018-02-13 2017-12-31 13F UNION PAC CORP COM COM 907818108 3,342 -503 -13.08 448 0.45 0.0046
2017-11-08 2017-09-30 13F UNION PAC CORP COM COM 907818108 3,845 -443 -10.33 446 -4.50 0.0051
2017-08-14 2017-06-30 13F UNION PAC CORP COM COM 907818108 4,288 287 7.17 467 10.14 0.0059
2017-09-15 2017-03-31 13F/A-1 UNION PAC CORP COM COM 907818108 4,001 113 2.91 424 5.21 0.0056
2017-05-08 2017-03-31 13F UNION PAC CORP COM COM 907818108 4,001 113 424
2017-09-15 2016-12-31 13F/A-1 UNION PAC CORP COM COM 907818108 3,888 -838 -17.73 403 -12.58 0.0059
2017-02-14 2016-12-31 13F UNION PAC CORP COM COM 907818108 3,888 -838 403
2017-09-14 2016-09-30 13F/A-1 UNION PAC CORP COM COM 907818108 4,726 -16 -0.34 461 11.35 0.0070
2016-11-04 2016-09-30 13F UNION PAC CORP COM COM 907818108 4,726 -16 461
2017-09-14 2016-06-30 13F/A-1 UNION PAC CORP COM COM 907818108 4,742 -4,226 -47.12 414 -41.94 0.0070
2016-08-08 2016-06-30 13F UNION PAC CORP COM COM 907818108 4,742 -4,226 414
2017-09-14 2016-03-31 13F/A-1 UNION PAC CORP COM COM 907818108 8,968 -1,805 -16.75 713 -15.32 0.0124
2016-05-13 2016-03-31 13F UNION PAC CORP COM COM 907818108 8,968 -1,805 713
2017-09-14 2015-12-31 13F/A-1 UNION PAC CORP COM COM 907818108 10,773 9,965 1,233.29 842 1,085.92 0.0156
2016-02-12 2015-12-31 13F UNION PAC CORP COM COM 907818108 10,773 9,965 842
2016-01-05 2015-09-30 13F/A-1 UNION PAC CORP COM COM 907818108 808 -26,534 -97.04 71 -97.28 0.0015
2015-11-10 2015-09-30 13F UNION PAC CORP COM COM 907818108 808 71
2015-08-13 2015-06-30 13F UNION PAC CORP COM COM 907818108 27,342 1,875 7.36 2,608 -5.44 0.0543
2015-05-12 2015-03-31 13F UNION PAC CORP COM COM 907818108 25,467 25,467 0.00 2,758 0.0587
2015-02-03 2014-12-31 13F UNION PAC CORP COM COM 907818108 0 -23,570 -100.00 0 -100.00
2014-11-10 2014-09-30 13F UNION PAC CORP COM COM 907818108 23,570 -9 -0.04 2,555 8.63 0.0590
2014-08-12 2014-06-30 13F UNION PAC CORP COM COM 907818108 23,579 13,760 140.14 2,352 27.62 0.0501
2014-05-06 2014-03-31 13F UNION PAC CORP COM COM 907818108 9,819 -387 -3.79 1,843 7.46 0.0449
2014-02-11 2013-12-31 13F UNION PAC CORP COM COM 907818108 10,206 -499 -4.66 1,715 3.13 0.0406
2014-02-11 2013-09-30 13F/A-1 UNION PAC CORP COM COM 907818108 10,705 10,705 1,663 0.0420
2013-11-14 2013-09-30 13F UNION PAC CORP COM COM 907818108 10,705 1,663 0.0420
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.