South Bow Corp
SOBO
281 hedge funds and large institutions have $3.51B invested in South Bow Corp in 2025 Q4 according to their latest regulatory filings, with 34 funds opening new positions, 91 increasing their positions, 86 reducing their positions, and 41 closing their positions.
6% more repeat investments, than reductions
Existing positions increased: 91 | Existing positions reduced: 86
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
4% less funds holding
Funds holding: 293 → 281 (-12)
5.79% less ownership
Funds ownership: 67.05% → 61.26% (-5.8%)
10% less capital invested
Capital invested by funds: $3.91B → $3.51B (-$398M)
17% less first-time investments, than exits
New positions opened: 34 | Existing positions closed: 41
52% less call options, than puts
Call options by funds: $22.9M | Put options by funds: $47.6M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
TIM
Thornburg Investment Management
Santa Fe,
New Mexico
|
+$22.6M |
| 2 |
Dimensional Fund Advisors
Austin,
Texas
|
+$21.7M |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$18.4M |
| 4 |
American Century Companies
Kansas City,
Missouri
|
+$15.5M |
| 5 |
Toronto Dominion Bank
Toronto, Ontario,
Ontario, Canada
|
+$13.6M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
-$163M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
-$97M |
| 3 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$72.7M |
| 4 |
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Toronto,
Ontario, Canada
|
-$55.2M |
| 5 |
Blackstone Inc
New York
|
-$39.7M |
SOBO Hedge Fund Activity: Q4 2025 in Review
281 of the 8,266 institutional investors tracked by Wall St. Rank reported a position in South Bow Corp (SOBO) for Q4 2025, worth a combined $3.51B — down 10% from $3.91B a quarter earlier.
Sellers outnumbered buyers: 41 funds closed out of SOBO and 34 opened new positions — a net loss of 7 holders — while 86 trimmed existing stakes and 91 added.
The largest buyer was Thornburg Investment Management, adding an estimated $22.6M. The largest seller was Royal Bank of Canada, cutting an estimated $163M.
- 281 institutional investors held South Bow Corp (SOBO) as of Q4 2025, down from 293 in Q3 2025.
- Funds reported $3.51B of South Bow Corp stock for Q4 2025, down 10% quarter-over-quarter.
- 34 funds opened new South Bow Corp positions in Q4 2025 and 41 closed out, a net change of -7 holders.
- The largest South Bow Corp buyer in Q4 2025 was Thornburg Investment Management, an estimated $22.6M added.
- The largest South Bow Corp seller in Q4 2025 was Royal Bank of Canada, an estimated $163M sold.
Based on aggregated 13F filings for Q4 2025.