SOUTH BOW CORP SOBO
COM · Common Stock · CUSIP 83671M105
- SectorEnergy
- IndustryPipe Lines (No Natural Gas)
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($43.5m this quarter). Holder counts are more reliable. Shares outstanding: 208.3m as of 2025-12-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $27.50. Options: 7 managers hold calls ($22.9m notional), 7 hold puts ($47.6m).
Trends to Q4 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q4 2024 | 286 |
| Q1 2025 | 302 |
| Q2 2025 | 290 |
| Q3 2025 | 292 |
| Q4 2025 | 281 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2025 | 151 | 127 |
| Q2 2025 | 94 | 149 |
| Q3 2025 | 121 | 103 |
| Q4 2025 | 116 | 127 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $21.6m | $15.2m | 0.70 |
| Q2 2025 | $11.6m | $9.4m | 0.81 |
| Q3 2025 | $24.9m | $8.0m | 0.32 |
| Q4 2025 | $22.9m | $47.6m | 2.08 |
Biggest buyers
| THORNBURG INVESTMENT MANAGEMENT INC | Added | +832.6k |
| DIMENSIONAL FUND ADVISORS LP | Added | +799.7k |
| CITADEL ADVISORS LLC | Added | +677.3k |
| AMERICAN CENTURY COMPANIES INC | Added | +570.9k |
| TORONTO DOMINION BANK | Added | +499.1k |
| Connor, Clark & Lunn Investment Management Ltd. | Added | +493.8k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +487.9k |
| CIBC WORLD MARKET INC. | Added | +376.5k |
| TD Asset Management Inc | Added | +359.1k |
| OMERS ADMINISTRATION Corp | Added | +320.5k |
Biggest sellers
| ROYAL BANK OF CANADA | Reduced | -6.0m |
| FMR LLC | Reduced | -3.6m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -2.7m |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | Sold out | -1.9m |
| Blackstone Inc. | Reduced | -1.5m |
| GOLDMAN SACHS GROUP INC | Reduced | -1.2m |
| BANK OF AMERICA CORP /DE/ | Reduced | -734.7k |
| Pictet Asset Management Holding SA | Reduced | -549.0k |
| Bornite Capital Management LP | Sold out | -400.0k |
| D. E. Shaw & Co., Inc. | Reduced | -335.0k |
Biggest calls
| GROUP ONE TRADING LLC | Added | $7.4m269.3k shares |
| TORONTO DOMINION BANK | Reduced | $6.7m244.2k shares |
| SIG North Trading, ULC | Reduced | $4.3m157.8k shares |
| BANK OF MONTREAL /CAN/ | Reduced | $2.8m100.0k shares |
| NATIONAL BANK OF CANADA /FI/ | Reduced | $1.1m392 shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $376.3k13.7k shares |
| SIMPLEX TRADING, LLC | Added | $206.0k7.5k shares |
Biggest puts
| Murchinson Ltd. | New | $40.3m1.5m shares |
| D. E. Shaw & Co., Inc. | Unchanged | $3.9m140.0k shares |
| SIG North Trading, ULC | Added | $1.6m59.9k shares |
| NATIONAL BANK OF CANADA /FI/ | Added | $1.5m559 shares |
| TORONTO DOMINION BANK | Reduced | $239.3k8.7k shares |
| GROUP ONE TRADING LLC | Reduced | $11.0k400 shares |
| SIMPLEX TRADING, LLC | New | $8.2k300 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| FMR LLC 13G · institution +5.7 pts · filed 2026-07-08 | 10.5% |
Fell to 5% or below in the last year: Capital International Investors (2.2%, 2026-05-14), GOLDMAN SACHS GROUP INC (1.3%, 2025-11-14)
Insider purchases and sales in Q4 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
None reported in Q4 2025.
Holders, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| ROYAL BANK OF CANADA 0.08% of their portfolio | 16.6m $455.8m | Reduced -6.0m |
| Capital International Investors 0.07% of their portfolio | 15.5m $425.8m | Added +94.8k |
| FMR LLC 0.01% of their portfolio | 10.1m $277.3m | Reduced -3.6m |
| VANGUARD GROUP INC 0.00% of their portfolio | 8.7m $238.4m | Added +118.1k |
| Clearbridge Investments, LLC 0.16% of their portfolio | 7.3m $199.5m | Added +209.9k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio | 6.5m $177.3m | Reduced -2.7m |
| BANK OF MONTREAL /CAN/ 0.07% of their portfolio | 6.1m $169.0m | Reduced -13.1k |
| CIBC WORLD MARKET INC. 0.18% of their portfolio | 3.6m $98.2m | Added +376.5k |
| THORNBURG INVESTMENT MANAGEMENT INC 0.98% of their portfolio | 2.8m $77.8m | Added +832.6k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.10% of their portfolio | 2.4m $65.7m | Added +213.0k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 2.3m $64.5m | Added +799.7k |
| TD Asset Management Inc 0.05% of their portfolio | 2.1m $56.6m | Added +359.1k |
| SCOTIA CAPITAL INC. 0.23% of their portfolio | 2.1m $56.4m | Added +256.2k |
| Legal & General Group Plc 0.01% of their portfolio | 1.9m $51.1m | Reduced -197.8k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.03% of their portfolio | 1.6m $45.4m | Added +315.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 1.6m $44.4m | Reduced -734.7k |
| Connor, Clark & Lunn Investment Management Ltd. 0.12% of their portfolio | 1.6m $44.3m | Added +493.8k |
| AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio | 1.5m $42.1m | Added +570.9k |
| Invesco Ltd. 0.00% of their portfolio | 1.5m $41.8m | Added +16.2k |
| MORGAN STANLEY 0.00% of their portfolio | 1.5m $41.5m | Reduced -37.2k |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT 2.35% of their portfolio | 1.5m $40.9m | Reduced -40.0k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.03% of their portfolio | 1.4m $37.9m | Reduced -35.7k |
| Recurrent Investment Advisors LLC 2.79% of their portfolio | 1.4m $37.8m | Reduced -235.3k |
| TD Waterhouse Canada Inc. 0.23% of their portfolio | 1.3m $36.7m | Added +93.8k |
| Boston Partners 0.04% of their portfolio | 1.3m $35.8m | Reduced -18.5k |
| Brookfield Corp /ON/ 0.04% of their portfolio | 1.2m $33.3m | Reduced -88.0k |
| TORONTO DOMINION BANK 0.06% of their portfolio | 1.2m $32.9m | Added +499.1k |
| WESTWOOD HOLDINGS GROUP INC 0.24% of their portfolio | 1.1m $29.6m | Added +34.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 1.1m $28.8m | Reduced -1.2m |
| INTACT INVESTMENT MANAGEMENT INC. 0.76% of their portfolio | 964.4k $26.5m | Added +158.1k |
| TORTOISE CAPITAL ADVISORS, L.L.C. 0.33% of their portfolio | 942.1k $25.9m | Reduced -737 |
| NORGES BANK 0.00% of their portfolio | 893.2k $24.6m | Not comparable |
| MILLER HOWARD INVESTMENTS INC /NY 0.66% of their portfolio | 798.3k $21.9m | Added +35.3k |
| TWO SIGMA INVESTMENTS, LP 0.03% of their portfolio | 765.9k $21.0m | Reduced -5.0k |
| PORTLAND INVESTMENT COUNSEL INC. 6.22% of their portfolio | 751.0k $20.7m | Unchanged |
| BARCLAYS PLC 0.01% of their portfolio | 748.9k $20.6m | Reduced -29.6k |
| Blackstone Inc. 0.08% of their portfolio | 709.1k $19.5m | Reduced -1.5m |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 700.2k $19.2m | Added +677.3k |
| NATIONAL BANK OF CANADA /FI/ 0.02% of their portfolio | 696.8k $19.0m | Added +178.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 692.5k $19.1m | Added +487.9k |
| Qube Research & Technologies Ltd 0.02% of their portfolio | 532.7k $14.6m | Reduced -251.8k |
| MACKENZIE FINANCIAL CORP 0.02% of their portfolio | 463.5k $13.1m | Added +177.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 441.2k $12.2m | Reduced -783 |
| Heathbridge Capital Management Ltd. 4.42% of their portfolio | 419.9k $11.6m | Added +214.2k |
| Swiss National Bank 0.01% of their portfolio | 412.3k $11.4m | Added +5.2k |
| BANK OF NOVA SCOTIA 0.02% of their portfolio | 385.2k $10.6m | Added +134.2k |
| OMERS ADMINISTRATION Corp 0.06% of their portfolio | 330.0k $9.1m | Added +320.5k |
| CIBC Asset Management Inc 0.02% of their portfolio | 315.2k $8.7m | Added +2.6k |
| Federation des caisses Desjardins du Quebec 0.03% of their portfolio | 306.7k $8.4m | Reduced -729 |
| FIL Ltd 0.01% of their portfolio | 293.6k $8.1m | Added +23.0k |
| BlackRock, Inc. 0.00% of their portfolio | 279.4k $7.7m | Added +92.1k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 253.1k $7.0m | Reduced -162.4k |
| Ninepoint Partners LP 0.82% of their portfolio | 250.0k $6.9m | Reduced -25.6k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 240.5k $6.6m | Added +196.0k |
| Maryland State Retirement & Pension System 0.13% of their portfolio | 237.7k $6.5m | Reduced -14.7k |
| Purpose Unlimited Inc. 0.28% of their portfolio | 222.3k $6.1m | First filing |
| EXCHANGE TRADED CONCEPTS, LLC 0.04% of their portfolio | 178.6k $4.9m | Reduced -30.9k |
| Catalyst Capital Advisors LLC 0.09% of their portfolio | 161.7k $4.4m | Reduced -42.3k |
| Nuveen, LLC 0.00% of their portfolio | 155.6k $4.3m | Unchanged |
| CAPITAL INTERNATIONAL SARL 0.06% of their portfolio | 145.4k $4.0m | Reduced -687 |
| Quadrature Capital Ltd 0.04% of their portfolio | 141.5k $3.9m | Reduced -325.5k |
| VAN ECK ASSOCIATES CORP 0.00% of their portfolio | 137.3k $3.8m | Added +5.9k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 132.9k $3.7m | Added +11.8k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 128.3k $3.5m | Added +14.0k |
| UBS Group AG 0.00% of their portfolio | 125.4k $3.4m | Added +7.4k |
| Moors & Cabot, Inc. 0.15% of their portfolio | 124.2k $3.4m | Added +1.7k |
| TCW GROUP INC 0.02% of their portfolio | 123.7k $3.4m | Unchanged |
| Triasima Portfolio Management inc. 0.49% of their portfolio | 118.4k $3.3m | Added +5.8k |
| Man Group plc 0.01% of their portfolio | 117.7k $3.2m | New |
| BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp 0.02% of their portfolio | 110.6k $3.0m | Reduced -10.7k |
| Ausbil Investment Management Ltd 1.67% of their portfolio | 106.5k $2.9m | Unchanged |
| Capital Group Private Client Services, Inc. 0.05% of their portfolio | 106.4k $2.9m | Reduced -11.0k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 103.5k $2.8m | Added +3.1k |
| Trexquant Investment LP 0.02% of their portfolio | 99.4k $2.7m | Reduced -58.3k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 98.7k $2.7m | Reduced -10.9k |
| 1832 Asset Management L.P. 0.00% of their portfolio | 98.4k $2.7m | Added +141 |
| Alberta Investment Management Corp 0.01% of their portfolio | 77.5k $2.1m | Reduced -104.5k |
| Pacer Advisors, Inc. 0.01% of their portfolio | 75.2k $2.1m | New |
| Quantbot Technologies LP 0.07% of their portfolio | 71.8k $2.0m | Reduced -25.3k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 71.7k $2.0m | Added +656 |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 71.5k $2.0m | Added +49.2k |
| HighTower Advisors, LLC 0.00% of their portfolio | 70.3k $1.9m | Added +2.5k |
| &PARTNERS 0.01% of their portfolio | 67.0k $1.8m | Added +53.7k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio | 66.7k $1.8m | Added +5.3k |
| CAPITAL INTERNATIONAL LTD /CA/ 0.06% of their portfolio | 66.6k $1.8m | Added +11.1k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 57.6k $1.6m | Reduced -180.4k |
| Vident Advisory, LLC 0.01% of their portfolio | 55.5k $1.5m | Reduced -2.8k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 55.3k $1.5m | Added +300 |
| SIG North Trading, ULC 0.26% of their portfolio | 53.5k $1.5m | New |
| Pictet Asset Management Holding SA 0.00% of their portfolio | 49.9k $1.4m | Reduced -549.0k |
| Greenline Partners, LLC 0.16% of their portfolio | 49.9k $1.4m | Reduced -216 |
| Heronetta Management, L.P. 1.00% of their portfolio | 46.5k $1.7m | Unchanged |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 46.5k $1.3m | Reduced -267.1k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 44.5k $1.2m | Added +4.7k |
| ALPS ADVISORS INC 0.01% of their portfolio | 41.5k $1.1m | Added +9.9k |
| LPL Financial LLC 0.00% of their portfolio | 38.5k $1.1m | Added +615 |
| OPPENHEIMER & CO INC 0.01% of their portfolio | 37.9k $1.0m | Reduced -1.7k |
| Aquatic Capital Management LLC 0.03% of their portfolio | 37.8k $1.0m | New |
| Investment Management Corp of Ontario 0.01% of their portfolio | 37.3k $1.0m | Added +17.8k |
| Steadtrust LLC 0.58% of their portfolio | 34.3k $942.8k | Reduced -170 |