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UNP

Union Pacific Corp

Company with tickers: UNP

CIK
100885
CUSIP
907818108
Shares Outstanding
593,713,213
13F Activity (30d)
865 filings 776 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 2,761
Total Value: $127,031,321,140
Total Shares: 523,581,415
Showing 1–100 of 2,828 holdings by value · page 1 of 29

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 2,761 13F filers · Δ vs Dec 31, 2025
Top Holder
9.1%
Jun 2023 → Mar 2026 · range 9.1% – 12.0%
−2.2 pts
Top 5
30.1%
Jun 2023 → Mar 2026 · range 30.0% – 32.6%
−2.4 pts
Top 10
44.7%
Jun 2023 → Mar 2026 · range 40.3% – 44.7%
+1.6 pts
HHI
272
Jun 2023 → Mar 2026 · range 272 – 324
Broadly held−45

Quarterly Activity

vs Dec 31, 2025
New
206
Increased
1,107
Decreased
1,006
Sold Out
183
Unchanged
442
Holder count: +23
Institutional value: +4.9%
Shares held: +0.0%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Showing 100 of 2,828
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Holder Value (USD) % of 13F Shares Open