Union Pacific Corporation
US ˙ NYSE ˙ US9078181081

SecurityUNP / Union Pacific Corporation
InstitutionOsterweis Capital Management Inc
Latest Disclosed Ownership4,003 shares
Latest Disclosed Value $ 971,208
Osterweis Capital Management Inc reports 6.01% decrease in ownership of UNP / Union Pacific Corporation

On May 15, 2026 - Osterweis Capital Management Inc filed a 13F-HR form disclosing ownership of 4,003 shares of Union Pacific Corporation (US:UNP) valued at $971,208 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,259 shares of Union Pacific Corporation. This represents a change in shares of -6.01% during the quarter. The current value of the position is $1,090,097 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 UNION PAC COM 907818108 4,003 -256 -6.01 971 -1.42 0.0380
2026-02-17 2025-12-31 13F UNION PAC COM 907818108 4,259 -3 -0.07 985 -2.18 0.0417
2025-11-14 2025-09-30 13F UNION PAC COM 907818108 4,262 0 0.00 1,007 2.76 0.0455
2025-08-14 2025-06-30 13F UNION PAC COM 907818108 4,262 409 10.62 981 7.69 0.0469
2025-06-05 2025-03-31 13F/A-1 UNION PAC COM 907818108 3,853 5 0.13 910 3.76 0.0449
2025-05-14 2025-03-31 13F UNION PAC COM 907818108 3,853 5 9,102 0.0360
2025-06-05 2024-12-31 13F/A-1 UNION PAC COM 907818108 3,848 -16,895 -81.45 877 -82.84 0.0408
2025-02-13 2024-12-31 13F UNION PAC COM 907818108 3,848 -16,895 1 0.0408
2024-11-14 2024-09-30 13F UNION PAC COM 907818108 20,743 -72,486 -77.75 5,113 -75.77 0.2590
2024-08-14 2024-06-30 13F UNION PAC COM 907818108 93,229 -38,941 -29.46 21,094 -35.10 1.0899
2024-05-15 2024-03-31 13F UNION PAC COM 907818108 132,170 -1,425 -1.07 32,505 -0.94 1.9091
2024-02-14 2023-12-31 13F UNION PAC COM 907818108 133,595 19,020 16.60 32,814 40.65 2.0828
2023-11-14 2023-09-30 13F UNION PAC COM 907818108 114,575 -2,282 -1.95 23,331 -2.43 1.7093
2023-08-14 2023-06-30 13F UNION PAC COM 907818108 116,857 1,599 1.39 23,911 3.08 1.5828
2023-05-15 2023-03-31 13F UNION PAC COM 907818108 115,258 -405 -0.35 23,197 -3.15 1.5778
2023-02-14 2022-12-31 13F UNION PAC COM 907818108 115,663 -17,510 -13.15 23,950 -7.69 1.7390
2022-11-14 2022-09-30 13F UNION PAC COM 907818108 133,173 -645 -0.48 25,945 -9.10 1.9463
2022-08-15 2022-06-30 13F UNION PAC COM 907818108 133,818 -44,148 -24.81 28,541 -41.30 2.1378
2022-05-16 2022-03-31 13F UNION PAC COM 907818108 177,966 -976 -0.55 48,623 7.86 2.6746
2022-02-14 2021-12-31 13F UNION PAC COM 907818108 178,942 -1,166 -0.65 45,081 27.70 2.2554
2021-11-15 2021-09-30 13F UNION PAC COM 907818108 180,108 -195 -0.11 35,303 -10.97 1.9273
2021-08-16 2021-06-30 13F UNION PAC COM 907818108 180,303 1,122 0.63 39,654 0.41 2.0395
2021-05-14 2021-03-31 13F UNION PAC COM 907818108 179,181 39,980 28.72 39,493 36.25 2.1525
2021-02-12 2020-12-31 13F UNION PAC COM 907818108 139,201 14,175 11.34 28,985 17.76 1.7289
2020-11-13 2020-09-30 13F UNION PAC COM 907818108 125,026 -2,313 -1.82 24,614 14.33 1.6610
2020-08-14 2020-06-30 13F UNION PAC COM 907818108 127,339 34,445 37.08 21,529 64.32 1.5607
2020-05-15 2020-03-31 13F UNION PAC COM 907818108 92,894 87,811 1,727.54 13,102 1,325.68 1.0639
2020-02-14 2019-12-31 13F UNION PACIFIC COM 907818108 5,083 0 0.00 919 11.53 0.0636
2019-11-14 2019-09-30 13F UNION PACIFIC COM 907818108 5,083 0 0.00 824 -4.19 0.0601
2019-08-14 2019-06-30 13F UNION PACIFIC COM 907818108 5,083 -4,001 -44.04 860 -43.38 0.0607
2019-05-15 2019-03-31 13F UNION PACIFIC COM 907818108 9,084 0 0.00 1,519 21.04 0.0950
2019-02-13 2018-12-31 13F UNION PAC COM 907818108 9,084 0 0.00 1,255 -15.15 0.0965
2018-11-13 2018-09-30 13F UNION PAC COM 907818108 9,084 3,084 51.40 1,479 74.00 0.0944
2018-08-13 2018-06-30 13F UNION PAC COM 907818108 6,000 0 0.00 850 5.33 0.0550
2018-05-14 2018-03-31 13F UNION PAC COM 907818108 6,000 0 0.00 807 0.25 0.0574
2018-02-14 2017-12-31 13F UNION PAC COM 907818108 6,000 0 0.00 805 15.66 0.0571
2017-11-13 2017-09-30 13F UNION PAC COM 907818108 6,000 0 0.00 696 6.58 0.0522
2017-08-15 2017-06-30 13F UNION PAC COM 907818108 6,000 -725 -10.78 653 -8.42 0.0497
2017-05-12 2017-03-31 13F UNION PAC COM 907818108 6,725 -269,951 -97.57 713 -97.51 0.0558
2017-02-13 2016-12-31 13F UNION PAC COM 907818108 276,676 -83,919 -23.27 28,686 -18.43 2.0673
2016-11-14 2016-09-30 13F UNION PAC COM 907818108 360,595 -122,258 -25.32 35,169 -16.52 2.1164
2016-08-12 2016-06-30 13F UNION PAC COM 907818108 482,853 -98,067 -16.88 42,129 -8.84 2.6853
2016-05-16 2016-03-31 13F UNION PAC COM 907818108 580,920 580,920 0.00 46,213 2.6853
2016-02-11 2015-12-31 13F UNION PAC COM 907818108 0 -6,000 -100.00 0 -100.00
2015-11-13 2015-09-30 13F UNION PAC COM 907818108 6,000 0 0.00 530 -7.34 0.0240
2015-08-17 2015-06-30 13F UNION PAC COM 907818108 6,000 0 0.00 572 -12.00 0.0199
2015-05-14 2015-03-31 13F UNION PAC COM 907818108 6,000 0 0.00 650 -9.09 0.0208
2015-02-13 2014-12-31 13F UNION PAC COM 907818108 6,000 0 0.00 715 9.83 0.0234
2014-11-13 2014-09-30 13F UNION PAC COM 907818108 6,000 0 0.00 651 8.68 0.0200
2014-08-14 2014-06-30 13F UNION PAC COM 907818108 6,000 3,000 100.00 599 6.39 0.0171
2014-05-15 2014-03-31 13F UNION PAC COM 907818108 3,000 0 0.00 563 11.71 0.0172
2014-02-13 2013-12-31 13F UNION PAC COM 907818108 3,000 0 0.00 504 11.01 0.0156
2013-11-14 2013-09-30 13F UNION PAC COM 907818108 3,000 -300 -9.09 454 -10.81 0.0147
2013-08-15 2013-06-30 13F UNION PAC COM 907818108 3,300 3,300 509 0.0190
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.