Latticework
← All portfoliosLatticework shows what 76 well-known investors report to the SEC each quarter.

UNP · Union Pacific Corp · Form 13F filings for Q2 2026

Union Pacific Corp

12 of 76 investors hold it

Together they reported $2.2 billion of it. In Q2 2026, 2 added and 1 reduced.

20 of 83 tracked investors have filed for Q3 2026 so far. The sheet and every stock page stay on Q2 2026 until most have filed, so each count is taken from one group of investors.

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Who added and who reduced

Q2 2026 against Q1 2026, among 74 filings that can be compared. An investor counts as adding or reducing when reported shares change by 20% or more, or when a position is opened or closed.

2added or opened

Viking Global InvestorsNew positionDaniel Loeb+250%

1reduced or sold out

Seth Klarman−23.1%

Who holds it

InvestorShare of their portfolioReported valueThis quarter
Seth Klarman5.95%$322M−23.1%
Daniel Loeb2.05%$95M+250%
Viking Global Investors1.59%$557MNew position
Bill Nygren1.39%$1.05BNo change of 20%
Tweedy Browne0.40%$5MNo change of 20%
Thomas Gayner0.33%$44MNo change of 20%
Thomas Russo0.08%$7MNo change of 20%
Dodge & Cox Funds0.04%$71MNo change of 20%
Joel Greenblatt0.03%$12MNo change of 20%
Torray Funds0.03%$231KNo change of 20%
Greenhaven Associates0.01%$553KNo change of 20%
Mairs & Power Funds0.01%$929KNo change of 20%

Holders over time

How many of the same 76 investors reported a position at each quarter end, up to Q2 2026.

10Q3 ’24
9Q4 ’24
9Q1 ’25
9Q2 ’25
12Q3 ’25
11Q4 ’25
11Q1 ’26
12Q2 ’26

Where to next

Bill NygrenLargest holder by dollars: $1.05B →Seth KlarmanHighest conviction: 5.95% of the portfolio →All portfoliosThe biggest bets reported for Q2 2026, on one sheet →

Source: SEC Form 13F filings for Q2 2026, the quarter ended Jun 30, 2026, from the 76 investors on the homepage sheet · CUSIP 907818108 · data as of Nov 12, 2026. Weight is the share of the investor’s disclosed portfolio. Filings list long US-listed positions at quarter end. They are not live holdings, omit shorts, can be amended and give no reasons for a change.

Each investor’s filing