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SOBO · South Bow Corp

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$37.05 -0.32 (-0.86%) At close · Sep 4
Market Cap
$7.79B
Shares
208.59M

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: 304
Total Value: $4,581,472,776
Total Shares: 130,007,844
Showing 1–100 of 315 holdings by value · page 1 of 4

Institutional Ownership Trend

7 quarters

Holder Concentration

Across 304 13F filers · Δ vs Mar 31, 2026
Top Holder
16.8%
Dec 2024 → Jun 2026 · range 12.4% – 16.8%
+4.4 pts
Top 5
43.8%
Dec 2024 → Jun 2026 · range 38.8% – 49.5%
+5.0 pts
Top 10
57.8%
Dec 2024 → Jun 2026 · range 55.7% – 66.6%
+2.1 pts
HHI
578
Dec 2024 → Jun 2026 · range 438 – 642
Broadly held+139

Quarterly Activity

vs Mar 31, 2026
New
35
Increased
89
Decreased
94
Sold Out
35
Unchanged
86
Holder count: 0
Institutional value: +2.9%
Shares held: -2.7%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 315
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 2019061 CUSIP 83671M105 13F (30d) 200 filings 195 filers Visit website Investor relations