Union Pacific Corporation
US ˙ NYSE ˙ US9078181081

SecurityUNP / Union Pacific Corporation
InstitutionSpears Abacus Advisors LLC
Latest Disclosed Ownership371,600 shares
Latest Disclosed Value $ 90,157,592
Spears Abacus Advisors LLC reports 5.05% increase in ownership of UNP / Union Pacific Corporation

On May 15, 2026 - Spears Abacus Advisors LLC filed a 13F-HR/A form disclosing ownership of 371,600 shares of Union Pacific Corporation (US:UNP) valued at $90,157,592 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 353,746 shares of Union Pacific Corporation. This represents a change in shares of 5.05% during the quarter. The current value of the position is $101,194,112 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)
2026-05-15 2026-03-31 13F/A-1 UNION PAC COM 907818108 371,600 17,854 5.05 90,158 10.18 1.7676
2026-05-14 2026-03-31 13F UNION PAC COM 907818108 371,600 17,854 90,131 1.7858
2026-02-17 2025-12-31 13F UNION PAC COM 907818108 353,746 244,927 225.08 81,829 218.14 1.5309
2025-11-14 2025-09-30 13F UNION PAC COM 907818108 108,819 56,579 108.31 25,722 114.00 0.4852
2025-08-14 2025-06-30 13F UNION PAC COM 907818108 52,240 -743 -1.40 12,019 -3.97 0.2427
2025-05-14 2025-03-31 13F UNION PAC COM 907818108 52,983 1,739 3.39 12,517 7.11 0.2695
2025-02-12 2024-12-31 13F UNION PAC COM 907818108 51,244 -753 -1.45 11,686 -8.82 0.2400
2024-11-12 2024-09-30 13F UNION PAC COM 907818108 51,997 3,856 8.01 12,816 17.66 0.2522
2024-08-12 2024-06-30 13F UNION PAC COM 907818108 48,141 -1,482 -2.99 10,892 -10.74 0.2260
2024-05-10 2024-03-31 13F UNION PAC COM 907818108 49,623 48,575 4,635.02 12,204 4,648.25 0.2523
2024-02-14 2023-12-31 13F UNION PAC COM 907818108 1,048 -4 -0.38 257 20.09 0.0205
2023-11-21 2023-09-30 13F UNION PAC COM 907818108 1,052 -625 -37.27 214 -37.61 0.0184
2023-08-14 2023-06-30 13F UNION PAC COM 907818108 1,677 0 0.00 343 1.78 0.0280
2023-05-15 2023-03-31 13F UNION PAC COM 907818108 1,677 41 2.51 338 -0.30 0.0302
2023-02-13 2022-12-31 13F UNION PAC COM 907818108 1,636 -202 -10.99 339 -5.59 0.0323
2022-11-14 2022-09-30 13F UNION PAC COM 907818108 1,838 -7 -0.38 358 -9.14 0.0353
2022-08-08 2022-06-30 13F UNION PAC COM 907818108 1,845 15 0.82 394 -21.20 0.0355
2022-05-13 2022-03-31 13F UNION PAC COM 907818108 1,830 0 0.00 500 8.46 0.0371
2022-02-14 2021-12-31 13F UNION PAC COM 907818108 1,830 782 74.62 461 124.88 0.0311
2021-11-15 2021-09-30 13F UNION PAC COM 907818108 1,048 0 0.00 205 -10.87 0.0148
2021-08-09 2021-06-30 13F UNION PAC COM 907818108 1,048 50 5.01 230 4.55 0.0165
2021-05-14 2021-03-31 13F UNION PAC COM 907818108 998 0 0.00 220 5.77 0.0170
2021-02-12 2020-12-31 13F UNION PAC COM 907818108 998 -158 -13.67 208 -8.77 0.0174
2020-11-16 2020-09-30 13F UNION PAC COM 907818108 1,156 1,156 228 0.0217
2016-05-13 2016-03-31 13F UNION PAC COM 907818108 0 -6,508 -100.00 0 -100.00
2016-02-16 2015-12-31 13F UNION PAC COM 907818108 6,508 235 3.75 509 -8.29 0.0582
2015-11-13 2015-09-30 13F UNION PAC COM 907818108 6,273 645 11.46 555 3.35 0.0634
2015-08-14 2015-06-30 13F UNION PAC COM 907818108 5,628 5,628 537 0.0595
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.