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SOBO in the 13F filings

South Bow Corp · CUSIP 83671M105

Sector · EnergyTheme · Energy and power infrastructure· L3VLUP-defined
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 10 Feb 2026
Managers listing it
15
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 3 listed it in both
Shares listed
20,358,437
combined, among listed positions
Reported value
$560m
combined, at the quarter end

Among the 92 comparable managers: 6 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -6,492,411.

Managers listing SOBO in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

15 of 15 holders

ActionFiling
Fidelity (FMR LLC)10,082,858$277munder 0.1%Trimmed-3,570,34717 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc6,456,032$177munder 0.1%Trimmed-2,676,37017 Feb 2026 (the filing on sec.gov)
Invesco Ltd1,523,169$42munder 0.1%Added+16,23019 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP765,932$21munder 0.1%Trimmed-4,97817 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC700,200$19munder 0.1%Added+677,27917 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP253,100$7.0munder 0.1%Trimmed-162,40017 Feb 2026 (the filing on sec.gov)
Millennium Management LLC240,475$6.6munder 0.1%Added+195,97817 Feb 2026 (the filing on sec.gov)
Man Group PLC117,671$3.2munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Quantbot Technologies LP71,811$2.0m0.07%Trimmed-25,34910 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC46,495$1.3munder 0.1%Trimmed-267,07212 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP29,793$818kunder 0.1%Added+1217 Feb 2026 (the filing on sec.gov)
Neuberger Berman Group LLC25,923$714kunder 0.1%Trimmed-77,70527 Oct 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC23,975$659kunder 0.1%Trimmed-14,45917 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC11,776$323kunder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.9,227$254kunder 0.1%Trimmed-335,00517 Feb 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (2)

Exited (6)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
3 in Q4 2024 to 1 in Q2 2026
Drawing every quarter on file…

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

SOBO and GEV →SOBO and XOM →SOBO and CVX →Choose a stock to compare with SOBO →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own SOBO, latest filings →Back to the 13F Explorer →