사우스보우 코퍼레이션
US ˙ NYSE

SecuritySOBO / South Bow Corporation
InstitutionRare Infrastructure Ltd
Latest Disclosed Ownership6,048,760 shares
Latest Disclosed Value $ 156,723,372
Rare Infrastructure Ltd reports 41.96% increase in ownership of SOBO / South Bow Corporation

On August 12, 2025 - Rare Infrastructure Ltd filed a 13F-HR form disclosing ownership of 6,048,760 shares of South Bow Corporation (US:SOBO) valued at $156,723,372 USD as of June 30, 2025. The entity filed a previous 13F-HR on May 13, 2025 disclosing 4,260,765 shares of South Bow Corporation. This represents a change in shares of 41.96% during the quarter. The current value of the position is $226,405,087 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)
2025-08-12 2025-06-30 13F South Bow COM 83671M105 6,048,760 1,787,995 41.96 156,723 45.96 3.4357
2025-05-13 2025-03-31 13F South Bow COM 83671M105 4,260,765 188,363 4.63 107,371 11.86 2.7877
2025-02-12 2024-12-31 13F South Bow COM 83671M105 4,072,402 4,072,402 95,987 2.5168
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.