Soroban Capital Partners LP UNP — UNION PAC CORP

Ownership history in Soroban Capital Partners LP  ·  42 quarters on record

AI Ownership Summary

Soroban Capital Partners LP reported UNION PAC CORP (UNP) in 42 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 21.42% in 2023 Q4. The latest visible filing shows UNP at 1.69% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this UNP ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Soroban Capital Partners LP's position in UNION PAC CORP, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

UNP was reported at 1.69% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
21.42% in 2023 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

UNP stock page Soroban Capital Partners LP fund profile Soroban Capital Partners LP full holdings
How Soroban Capital Partners LP held UNP — position size vs. price
% of Fund (quarterly)    UNP price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 7 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 UNCHANGED — — — 1,022,833 — 0% 1.69% $241.8M 2026-02-17 $260.08
2025 Q3 REDUCED 23.0% -0.2% ✅ 1,022,833 -305,462 -23.0% 1.82% $241.8M 2025-11-14 $219.43
2024 Q4 UNCHANGED — — — 1,328,295 — 0% 4.06% $302.9M 2025-02-14 $240.89
2024 Q3 REDUCED 35.3% -7.0% ✅ 1,328,295 -725,929 -35.3% 4.53% $327.4M 2024-11-14 $226.40
2024 Q2 REDUCED 40.5% +9.5% ❌ 2,054,224 -1,399,924 -40.5% 6.83% $464.8M 2024-08-14 $230.60
2024 Q1 REDUCED 51.0% -8.1% ✅ 3,454,148 -3,593,230 -51.0% 12.84% $849.5M 2024-05-15 $234.35
2023 Q4 REDUCED 14.7% -0.4% ✅ 7,047,378 -1,212,807 -14.7% 21.42% $1.73B 2024-02-14 $236.52
35 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding UNP

As of 2026 Q1 — sorted by position size

Cercano Management LLC 3Y 11.01% Symmetry Investments LP 3Y 10.67% HILLMAN CO 3Y 7Y 9.6% IVY LANE CAPITAL MANAGEMENT, LLC 3Y 9.17% ATLAS Infrastructure Partners (UK) Ltd. 3Y 8.68% HARVARD MANAGEMENT CO INC 3Y 7Y 8.48% DRH Investments, Inc. 3Y 7.85% BAUPOST GROUP LLC/MA 3Y 7Y 7.31% Stenham Asset Management (UK) Plc 7.19% Horrell Capital Management, Inc. 3Y 7Y 7.12%

FAQ About Soroban Capital Partners LP and UNP

These are the practical questions this page is built to answer before you even open the full history table.

How long has Soroban Capital Partners LP reported owning UNP?

Soroban Capital Partners LP reported UNP across 7 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported UNP position in Soroban Capital Partners LP's portfolio?

The largest reported portfolio weight for UNP was 21.42% in 2023 Q4.

What is the latest reported UNP position on this page?

The most recent filing on this page is 2025 Q4, when Soroban Capital Partners LP reported 1,022,833 shares, equal to 1.69% of portfolio, with an estimated market value of $241.8M.

What does the chart on this UNP ownership page compare?

The chart compares Soroban Capital Partners LP's quarterly UNP portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did Soroban Capital Partners LP time their UNP position?

Based on 13F filing dates vs. subsequent UNP price moves, Soroban Capital Partners LP correctly timed 16 out of 35 reported position changes (46%). The annualised alpha on UNP relative to SPY over the holding period was +1.9%.

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