Latest Period
Q1 2026
Security Snapshot
South Bow Corp - Common Stock (SOBO) Institutional Ownership
CUSIP: 83671M105
13F Institutional Holders and Ownership History from Q4 2024 to Q1 2026
Institutions Reporting
296
Shares (Excl. Options)
131,898,364
Price
$33.32
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- Security type / class
- Equity / Common Stock
- Symbol
- SOBO on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 131,898,364
- Total 13F value
- $4,389,968,428
- Portfolio coverage rank
- 0.01%
- Share change
- +3,945,598
- Value change
- +$144,870,401
- Number of holders
- 296
- Shares outstanding
- 210,097,318
- SEC-reported price per share
- $36.18
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- SOBO - South Bow Corp - Common Stock is tracked under CUSIP 83671M105.
- 296 institutions reported positions in Q1 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 276 to 296 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $3,505,699,529 to $4,389,968,428.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 296 institutions filings for Q1 2026.
Security key
83671M105
Latest holder period
Q1 2026
13F holders
296
13D/G owners
3
CIK / CUSIP context first
Open Q1 2026 holders
SOBO full holder history
South Bow Corp SEC filings
South Bow Corp company facts
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 83671M105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
SOBO
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| FMR LLC | 4.8% | -27% | $276,991,222 | -$89,558,546 | 10,082,858 | -24% | FMR LLC | 31 Dec 2025 |
| Capital International Investors | 2.2% | -68% | $153,039,089 | -$371,294,745 | 4,622,141 | -71% | Capital International Investors | 31 Mar 2026 |
| GOLDMAN SACHS GROUP INC | 1.3% | -75% | $78,661,991 | -$260,869,445 | 2,780,558 | -77% | THE GOLDMAN SACHS GROUP, INC. | 30 Sep 2025 |
As of 31 Mar 2026, 296 institutional investors reported holding 131,898,364 shares of South Bow Corp - Common Stock (SOBO). This represents 63% of the company’s total 210,097,318 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
49%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| ROYAL BANK OF CANADA | 7.8% | 16,403,374 | -1.1% | 0.1% | $546,561,000 |
| Capital Research Global Investors | 4.9% | 10,278,370 | 0.05% | $341,947,354 | |
| FMR LLC | 4.6% | 9,671,599 | -4.1% | 0.02% | $321,775,316 |
| Clearbridge Investments, LLC | 4.1% | 8,669,957 | +19% | 0.25% | $288,882,960 |
| BANK OF MONTREAL /CAN/ | 3.1% | 6,592,749 | +7.3% | 0.09% | $219,373,573 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.8% | 5,967,999 | 0% | 0% | $198,549,359 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.5% | 5,237,110 | -19% | 0.02% | $174,501,000 |
| Capital International Investors | 2.1% | 4,313,599 | -72% | 0.03% | $143,508,019 |
| THORNBURG INVESTMENT MANAGEMENT INC | 1.7% | 3,632,875 | +28% | 1.3% | $120,678,081 |
| CIBC WORLD MARKET INC. | 1.6% | 3,439,260 | -3.7% | 0.2% | $114,389,788 |
| DIMENSIONAL FUND ADVISORS LP | 1.4% | 2,914,614 | +24% | 0.02% | $97,134,226 |
| Connor, Clark & Lunn Investment Management Ltd. | 1.3% | 2,793,557 | +73% | 0.21% | $92,835,027 |
| TD Asset Management Inc | 1.1% | 2,375,127 | +16% | 0.06% | $78,765,274 |
| CANADA PENSION PLAN INVESTMENT BOARD | 1.1% | 2,299,000 | +39% | 0.05% | $76,499,168 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1.1% | 2,234,405 | -6.6% | 0.1% | $74,450,375 |
| BANK OF AMERICA CORP /DE/ | 0.95% | 1,993,768 | +23% | 0% | $66,432,349 |
| TD Waterhouse Canada Inc. | 0.92% | 1,930,689 | +45% | 0.18% | $61,865,934 |
| VANGUARD FIDUCIARY TRUST CO | 0.87% | 1,822,277 | 0% | 0.02% | $60,625,334 |
| SCOTIA CAPITAL INC. | 0.85% | 1,788,858 | -13% | 0.24% | $59,277,799 |
| Legal & General Group Plc | 0.84% | 1,761,185 | -5.1% | 0.01% | $58,405,805 |
| Murchinson Ltd. | 0.82% | 1,725,100 | 23% | $57,480,332 | |
| Invesco Ltd. | 0.72% | 1,522,659 | -0.03% | 0.01% | $50,734,996 |
| GOLDMAN SACHS GROUP INC | 0.67% | 1,409,919 | +34% | 0.01% | $46,978,494 |
| TWO SIGMA INVESTMENTS, LP | 0.66% | 1,389,388 | +81% | 0.04% | $46,294,408 |
| MORGAN STANLEY | 0.64% | 1,334,795 | -12% | 0% | $44,475,405 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
6
Latest
Q1 2026
Rows shown
1-6 of 6
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 131,898,364 | $4,389,968,428 | +$144,870,401 | $33.32 | 296 |
| 2025 Q4 | 127,496,784 | $3,505,699,529 | -$337,858,933 | $27.47 | 276 |
| 2025 Q3 | 139,521,052 | $3,897,851,376 | -$146,720,133 | $28.29 | 287 |
| 2025 Q2 | 150,077,591 | $3,892,661,985 | -$48,993,977 | $25.91 | 282 |
| 2025 Q1 | 150,813,330 | $3,856,588,436 | +$330,239,893 | $25.52 | 289 |
| 2024 Q4 | 137,990,768 | $3,254,209,980 | +$3,252,855,470 | $23.57 | 275 |