Union Pacific Corporation
MX ˙ BMV ˙ US9078181081
SecurityMX:UNP / Union Pacific Corporation
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership21,100 shares
Latest Disclosed Value $ 5,119,282
Renaissance Technologies Llc reports 92.85% decrease in ownership of UNP / Union Pacific Corporation

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 21,100 shares of Union Pacific Corporation (MX:UNP) valued at $5,119,282 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 295,200 shares of Union Pacific Corporation. This represents a change in shares of -92.85% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-14 2026-03-31 13F UNION PAC COM 907818108 21,100 -274,100 -92.85 5,119 -92.50 0.0080
2026-02-12 2025-12-31 13F UNION PAC COM 907818108 295,200 -650,500 -68.79 68,286 -69.45 0.1059
2025-11-13 2025-09-30 13F UNION PAC COM 907818108 945,700 190,300 25.19 223,535 28.61 0.2951
2025-08-13 2025-06-30 13F UNION PAC COM 907818108 755,400 37,500 5.22 173,802 2.48 0.2312
2025-05-14 2025-03-31 13F UNION PAC COM 907818108 717,900 656,400 1,067.32 169,597 1,109.33 0.2567
2025-02-13 2024-12-31 13F UNION PAC COM 907818108 61,500 32,500 112.07 14,024 96.22 0.0208
2024-11-13 2024-09-30 13F UNION PAC COM 907818108 29,000 -506,000 -94.58 7,148 -94.10 0.0107
2024-08-09 2024-06-30 13F UNION PAC COM 907818108 535,000 21,821 4.25 121,049 95,970.63 0.2053
2024-05-13 2024-03-31 13F UNION PAC COM 907818108 513,179 513,179 126 0.1984
2024-02-13 2023-12-31 13F UNION PAC COM 907818108 0 -388,054 -100.00 0 -100.00
2023-11-14 2023-09-30 13F UNION PAC COM 907818108 388,054 -158,646 -29.02 79 -28.83 0.1347
2023-08-11 2023-06-30 13F UNION PAC COM 907818108 546,700 -388,031 -41.51 112 -40.96 0.1612
2023-05-12 2023-03-31 13F UNION PAC COM 907818108 934,731 224,972 31.70 188 28.77 0.2497
2023-02-13 2022-12-31 13F UNION PAC COM 907818108 709,759 218,160 44.38 147 -99.85 0.2011
2022-11-14 2022-09-30 13F UNION PAC COM 907818108 491,599 -1,294,000 -72.47 95,773 -74.85 0.1355
2022-08-12 2022-06-30 13F UNION PAC COM 907818108 1,785,599 767,300 75.35 380,833 36.89 0.4509
2022-05-13 2022-03-31 13F UNION PAC COM 907818108 1,018,299 473,299 86.84 278,209 102.63 0.3265
2022-02-11 2021-12-31 13F UNION PAC COM 907818108 545,000 -443,900 -44.89 137,302 -29.17 0.1708
2021-11-12 2021-09-30 13F UNION PAC COM 907818108 988,900 303,600 44.30 193,834 28.61 0.2503
2021-08-13 2021-06-30 13F UNION PAC COM 907818108 685,300 428,600 166.97 150,718 166.39 0.1881
2021-05-13 2021-03-31 13F UNION PAC COM 907818108 256,700 -56,700 -18.09 56,579 -13.30 0.0704
2021-02-10 2020-12-31 13F UNION PAC COM 907818108 313,400 -74,081 -19.12 65,256 -14.46 0.0709
2020-11-13 2020-09-30 13F UNION PAC COM 907818108 387,481 -4,593 -1.17 76,283 15.08 0.0762
2020-08-13 2020-06-30 13F UNION PAC COM 907818108 392,074 273,174 229.75 66,288 295.28 0.0572
2020-05-14 2020-03-31 13F UNION PAC COM 907818108 118,900 118,900 16,770 0.0163
2020-02-12 2019-12-31 13F UNION PACIFIC COM 907818108 0 -532,700 -100.00 0 -100.00
2019-11-13 2019-09-30 13F UNION PACIFIC COM 907818108 532,700 -436,200 -45.02 86,287 -47.34 0.0730
2019-08-12 2019-06-30 13F UNION PACIFIC COM 907818108 968,900 -419,800 -30.23 163,851 -29.43 0.1443
2019-05-14 2019-03-31 13F UNION PACIFIC COM 907818108 1,388,700 1,388,700 232,191 0.2111
2018-02-13 2017-12-31 13F UNION PAC COM 907818108 0 -20,300 -100.00 0 -100.00
2017-11-13 2017-09-30 13F UNION PAC COM 907818108 20,300 -827,200 -97.60 2,354 -97.45 0.0028
2017-08-11 2017-06-30 13F UNION PAC COM 907818108 847,500 847,500 92,301 0.1178
2016-05-13 2016-03-31 13F UNION PAC COM 907818108 0 -438,900 -100.00 0 -100.00
2016-02-11 2015-12-31 13F UNION PAC COM 907818108 438,900 438,900 0.00 34,322 0.0748
2015-11-12 2015-09-30 13F UNION PAC COM 907818108 0 -2,021,400 -100.00 0 -100.00
2015-08-14 2015-06-30 13F UNION PAC COM 907818108 2,021,400 74,068 3.80 192,781 -8.60 0.4392
2015-05-13 2015-03-31 13F UNION PAC COM 907818108 1,947,332 1,947,332 210,916 0.4492
2014-11-12 2014-09-30 13F UNION PAC COM 907818108 0 -573,300 -100.00 0 -100.00
2014-08-13 2014-06-30 13F UNION PAC COM 907818108 573,300 -147,800 -20.50 57,187 -52.79 0.1333
2014-02-14 2013-12-31 13F UNION PAC COM 907818108 721,100 -67,500 -8.56 121,145 -1.11 0.2901
2013-11-13 2013-09-30 13F UNION PAC COM 907818108 788,600 788,600 122,501 0.2972
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.