Vault-13

SOUTH BOW CORP SOBO

COM · Common Stock · CUSIP 83671M105

281 institutional holders -11 vs Q3 2025
125,917,036125.9m shares reported held*
60.5% of all shares outstanding*
$3.5bnreported value*
25 new 91 added 86 reduced 41 sold out net sold ≈ $364.3m (-13.3m shares)

* 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

0200400Q4 24: 286Q1 25: 302Q2 25: 290Q3 25: 292Q4 25: 281281Q4 24Q1 25Q2 25Q3 25Q4 25
Numbers
QuarterHolders
Q4 2024286
Q1 2025302
Q2 2025290
Q3 2025292
Q4 2025281

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
2000200Q1 25: 151 bought or addedQ1 25: 127 cut or sold outQ1 25Q2 25: 94 bought or addedQ2 25: 149 cut or sold outQ2 25Q3 25: 121 bought or addedQ3 25: 103 cut or sold outQ3 25Q4 25: 116 bought or addedQ4 25: 127 cut or sold outQ4 25
Numbers
QuarterBought or addedCut or sold out
Q1 2025151127
Q2 202594149
Q3 2025121103
Q4 2025116127

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$20m$40m$60mQ1 25 calls: $21.6mQ1 25 puts: $15.2mQ1 25P/C 0.70Q2 25 calls: $11.6mQ2 25 puts: $9.4mQ2 25P/C 0.81Q3 25 calls: $24.9mQ3 25 puts: $8.0mQ3 25P/C 0.32Q4 25 calls: $22.9mQ4 25 puts: $47.6mQ4 25P/C 2.08
Numbers
QuarterCallsPutsP/C
Q1 2025$21.6m$15.2m0.70
Q2 2025$11.6m$9.4m0.81
Q3 2025$24.9m$8.0m0.32
Q4 2025$22.9m$47.6m2.08

Biggest buyers

THORNBURG INVESTMENT MANAGEMENT INC Added +832,574+832.6k
DIMENSIONAL FUND ADVISORS LP Added +799,707+799.7k
CITADEL ADVISORS LLC Added +677,279+677.3k
AMERICAN CENTURY COMPANIES INC Added +570,949+570.9k
TORONTO DOMINION BANK Added +499,094+499.1k
Connor, Clark & Lunn Investment Management Ltd. Added +493,801+493.8k
GEODE CAPITAL MANAGEMENT, LLC Added +487,904+487.9k
CIBC WORLD MARKET INC. Added +376,514+376.5k
TD Asset Management Inc Added +359,108+359.1k
OMERS ADMINISTRATION Corp Added +320,500+320.5k

Biggest sellers

ROYAL BANK OF CANADA Reduced -5,994,200-6.0m
FMR LLC Reduced -3,570,347-3.6m
PRICE T ROWE ASSOCIATES INC /MD/ Reduced -2,676,370-2.7m
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Sold out -1,950,000-1.9m
Blackstone Inc. Reduced -1,461,311-1.5m
GOLDMAN SACHS GROUP INC Reduced -1,246,885-1.2m
BANK OF AMERICA CORP /DE/ Reduced -734,745-734.7k
Pictet Asset Management Holding SA Reduced -548,953-549.0k
Bornite Capital Management LP Sold out -400,000-400.0k
D. E. Shaw & Co., Inc. Reduced -335,005-335.0k

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.

HolderStakeChangeShares Last filed
FMR LLC 13G · institution +5.7 pts · filed 2026-07-08 10.5% +5.7 pts 21.9m≈ $770.1m 2026-07-08

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

#ManagerLocationShares Value% of their portfolioChangeShares change
1 ROYAL BANK OF CANADA 0.08% of their portfolio TORONTO, A6 16,592,19916.6m $455.8m $455.8m 0.08% Reduced -6.0m -5,994,200
2 Capital International Investors 0.07% of their portfolio Los Angeles, CA 15,483,08515.5m $425.8m $425.8m 0.07% Added +94.8k +94,772
3 FMR LLC 0.01% of their portfolio BOSTON, MA 10,082,85810.1m $277.3m $277.3m 0.01% Reduced -3.6m -3,570,347
4 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 8,667,3658.7m $238.4m $238.4m 0.00% Added +118.1k +118,147
5 Clearbridge Investments, LLC 0.16% of their portfolio NEW YORK, NY 7,262,9657.3m $199.5m $199.5m 0.16% Added +209.9k +209,864
6 PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio BALTIMORE, MD 6,456,0326.5m $177.3m $177.3m 0.02% Reduced -2.7m -2,676,370
7 BANK OF MONTREAL /CAN/ 0.07% of their portfolio TORONTO, A6 6,145,3256.1m $169.0m $169.0m 0.07% Reduced -13.1k -13,055
8 CIBC WORLD MARKET INC. 0.18% of their portfolio TORONTO, A6 3,571,0923.6m $98.2m $98.2m 0.18% Added +376.5k +376,514
9 THORNBURG INVESTMENT MANAGEMENT INC 0.98% of their portfolio SANTA FE, NM 2,829,8752.8m $77.8m $77.8m 0.98% Added +832.6k +832,574
10 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.10% of their portfolio CAUSEWAY BAY, K3 2,391,5842.4m $65.7m $65.7m 0.10% Added +213.0k +212,978
11 DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio AUSTIN, TX 2,348,8272.3m $64.5m $64.5m 0.01% Added +799.7k +799,707
12 TD Asset Management Inc 0.05% of their portfolio Toronto, A6 2,055,6352.1m $56.6m $56.6m 0.05% Added +359.1k +359,108
13 SCOTIA CAPITAL INC. 0.23% of their portfolio TORONTO, A6 2,053,5002.1m $56.4m $56.4m 0.23% Added +256.2k +256,246
14 Legal & General Group Plc 0.01% of their portfolio London, X0 1,855,7281.9m $51.1m $51.1m 0.01% Reduced -197.8k -197,784
15 CANADA PENSION PLAN INVESTMENT BOARD 0.03% of their portfolio TORONTO ONTARIO, A6 1,650,0001.6m $45.4m $45.4m 0.03% Added +315.0k +315,000
16 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 1,617,6601.6m $44.4m $44.4m 0.00% Reduced -734.7k -734,745
17 Connor, Clark & Lunn Investment Management Ltd. 0.12% of their portfolio VANCOUVER, A1 1,612,4331.6m $44.3m $44.3m 0.12% Added +493.8k +493,801
18 AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio KANSAS CITY, MO 1,529,9801.5m $42.1m $42.1m 0.02% Added +570.9k +570,949
19 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 1,523,1691.5m $41.8m $41.8m 0.00% Added +16.2k +16,230
20 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 1,511,7971.5m $41.5m $41.5m 0.00% Reduced -37.2k -37,243
21 CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT 2.35% of their portfolio DALLAS, TX 1,490,5001.5m $40.9m $40.9m 2.35% Reduced -40.0k -40,000
22 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.03% of their portfolio Toronto, A6 1,373,6001.4m $37.9m $37.9m 0.03% Reduced -35.7k -35,670
23 Recurrent Investment Advisors LLC 2.79% of their portfolio HOUSTON, TX 1,370,6351.4m $37.8m $37.8m 2.79% Reduced -235.3k -235,329
24 TD Waterhouse Canada Inc. 0.23% of their portfolio TORONTO, A6 1,336,1031.3m $36.7m $36.7m 0.23% Added +93.8k +93,805
25 Boston Partners 0.04% of their portfolio BOSTON, MA 1,311,8811.3m $35.8m $35.8m 0.04% Reduced -18.5k -18,481
26 Brookfield Corp /ON/ 0.04% of their portfolio TORONTO, A6 1,212,1561.2m $33.3m $33.3m 0.04% Reduced -88.0k -88,002
27 TORONTO DOMINION BANK 0.06% of their portfolio TORONTO, ONTARIO, A6 1,194,8471.2m $32.9m $32.9m 0.06% Added +499.1k +499,094
28 WESTWOOD HOLDINGS GROUP INC 0.24% of their portfolio DALLAS, TX 1,077,2861.1m $29.6m $29.6m 0.24% Added +34.2k +34,247
29 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 1,050,0231.1m $28.8m $28.8m 0.00% Reduced -1.2m -1,246,885
30 INTACT INVESTMENT MANAGEMENT INC. 0.76% of their portfolio MONTREAL, A8 964,360964.4k $26.5m $26.5m 0.76% Added +158.1k +158,100
31 TORTOISE CAPITAL ADVISORS, L.L.C. 0.33% of their portfolio OVERLAND PARK, KS 942,091942.1k $25.9m $25.9m 0.33% Reduced -737 -737
32 NORGES BANK 0.00% of their portfolio OSLO, Q8 893,176893.2k $24.6m $24.6m 0.00% Not comparable
33 MILLER HOWARD INVESTMENTS INC /NY 0.66% of their portfolio KINGSTON, NY 798,348798.3k $21.9m $21.9m 0.66% Added +35.3k +35,331
34 TWO SIGMA INVESTMENTS, LP 0.03% of their portfolio NEW YORK, NY 765,932765.9k $21.0m $21.0m 0.03% Reduced -5.0k -4,978
35 PORTLAND INVESTMENT COUNSEL INC. 6.22% of their portfolio BURLINGTON, A6 751,044751.0k $20.7m $20.7m 6.22% Unchanged
36 BARCLAYS PLC 0.01% of their portfolio LONDON, X0 748,859748.9k $20.6m $20.6m 0.01% Reduced -29.6k -29,567
37 Blackstone Inc. 0.08% of their portfolio NEW YORK, NY 709,098709.1k $19.5m $19.5m 0.08% Reduced -1.5m -1,461,311
38 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 700,200700.2k $19.2m $19.2m 0.01% Added +677.3k +677,279
39 NATIONAL BANK OF CANADA /FI/ 0.02% of their portfolio MONTREAL, A8 696,794696.8k $19.0m $19.0m 0.02% Added +178.5k +178,495
40 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 692,541692.5k $19.1m $19.1m 0.00% Added +487.9k +487,904
41 Qube Research & Technologies Ltd 0.02% of their portfolio LONDON, X0 532,722532.7k $14.6m $14.6m 0.02% Reduced -251.8k -251,843
42 MACKENZIE FINANCIAL CORP 0.02% of their portfolio TORONTO ONTARIO, A6 463,475463.5k $13.1m $13.1m 0.02% Added +177.0k +177,016
43 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 441,204441.2k $12.2m $12.2m 0.00% Reduced -783 -783
44 Heathbridge Capital Management Ltd. 4.42% of their portfolio TORONTO, A6 419,950419.9k $11.6m $11.6m 4.42% Added +214.2k +214,150
45 Swiss National Bank 0.01% of their portfolio ZURICH, V8 412,320412.3k $11.4m $11.4m 0.01% Added +5.2k +5,200
46 BANK OF NOVA SCOTIA 0.02% of their portfolio TORONTO, A6 385,197385.2k $10.6m $10.6m 0.02% Added +134.2k +134,155
47 OMERS ADMINISTRATION Corp 0.06% of their portfolio TORONTO, A6 330,000330.0k $9.1m $9.1m 0.06% Added +320.5k +320,500
48 CIBC Asset Management Inc 0.02% of their portfolio TORONTO, Z4 315,155315.2k $8.7m $8.7m 0.02% Added +2.6k +2,593
49 Federation des caisses Desjardins du Quebec 0.03% of their portfolio LEVIS, A8 306,731306.7k $8.4m $8.4m 0.03% Reduced -729 -729
50 FIL Ltd 0.01% of their portfolio HAMILTON, D0 293,627293.6k $8.1m $8.1m 0.01% Added +23.0k +23,000
51 BlackRock, Inc. 0.00% of their portfolio New York, NY 279,356279.4k $7.7m $7.7m 0.00% Added +92.1k +92,120
52 TWO SIGMA ADVISERS, LP 0.01% of their portfolio NEW YORK, NY 253,100253.1k $7.0m $7.0m 0.01% Reduced -162.4k -162,400
53 Ninepoint Partners LP 0.82% of their portfolio TORONTO, A6 250,000250.0k $6.9m $6.9m 0.82% Reduced -25.6k -25,600
54 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 240,475240.5k $6.6m $6.6m 0.00% Added +196.0k +195,978
55 Maryland State Retirement & Pension System 0.13% of their portfolio BALTIMORE, MD 237,732237.7k $6.5m $6.5m 0.13% Reduced -14.7k -14,682
56 Purpose Unlimited Inc. 0.28% of their portfolio TORONTO, A6 222,293222.3k $6.1m $6.1m 0.28% First filing
57 EXCHANGE TRADED CONCEPTS, LLC 0.04% of their portfolio Oklahoma City, OK 178,575178.6k $4.9m $4.9m 0.04% Reduced -30.9k -30,884
58 Catalyst Capital Advisors LLC 0.09% of their portfolio San Juan, PR 161,679161.7k $4.4m $4.4m 0.09% Reduced -42.3k -42,290
59 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 155,622155.6k $4.3m $4.3m 0.00% Unchanged
60 CAPITAL INTERNATIONAL SARL 0.06% of their portfolio Los Angeles, CA 145,403145.4k $4.0m $4.0m 0.06% Reduced -687 -687
61 Quadrature Capital Ltd 0.04% of their portfolio LONDON, X0 141,500141.5k $3.9m $3.9m 0.04% Reduced -325.5k -325,500
62 VAN ECK ASSOCIATES CORP 0.00% of their portfolio NEW YORK, NY 137,289137.3k $3.8m $3.8m 0.00% Added +5.9k +5,855
63 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 132,887132.9k $3.7m $3.7m 0.00% Added +11.8k +11,841
64 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 128,345128.3k $3.5m $3.5m 0.00% Added +14.0k +14,019
65 UBS Group AG 0.00% of their portfolio ZURICH, V8 125,364125.4k $3.4m $3.4m 0.00% Added +7.4k +7,384
66 Moors & Cabot, Inc. 0.15% of their portfolio BOSTON, MA 124,151124.2k $3.4m $3.4m 0.15% Added +1.7k +1,700
67 TCW GROUP INC 0.02% of their portfolio LOS ANGELES, CA 123,700123.7k $3.4m $3.4m 0.02% Unchanged
68 Triasima Portfolio Management inc. 0.49% of their portfolio MONTREAL, A8 118,400118.4k $3.3m $3.3m 0.49% Added +5.8k +5,815
69 Man Group plc 0.01% of their portfolio LONDON, X0 117,671117.7k $3.2m $3.2m 0.01% New
70 BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp 0.02% of their portfolio VICTORIA, A1 110,620110.6k $3.0m $3.0m 0.02% Reduced -10.7k -10,730
71 Ausbil Investment Management Ltd 1.67% of their portfolio SYDNEY, C3 106,483106.5k $2.9m $2.9m 1.67% Unchanged
72 Capital Group Private Client Services, Inc. 0.05% of their portfolio Los Angeles, CA 106,354106.4k $2.9m $2.9m 0.05% Reduced -11.0k -10,953
73 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 103,476103.5k $2.8m $2.8m 0.00% Added +3.1k +3,059
74 Trexquant Investment LP 0.02% of their portfolio STAMFORD, CT 99,35199.4k $2.7m $2.7m 0.02% Reduced -58.3k -58,290
75 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 98,69798.7k $2.7m $2.7m 0.00% Reduced -10.9k -10,859
76 1832 Asset Management L.P. 0.00% of their portfolio TORONTO, A6 98,36398.4k $2.7m $2.7m 0.00% Added +141 +141
77 Alberta Investment Management Corp 0.01% of their portfolio EDMONTON, A0 77,52877.5k $2.1m $2.1m 0.01% Reduced -104.5k -104,500
78 Pacer Advisors, Inc. 0.01% of their portfolio Malvern, PA 75,15575.2k $2.1m $2.1m 0.01% New
79 Quantbot Technologies LP 0.07% of their portfolio NEW YORK, NY 71,81171.8k $2.0m $2.0m 0.07% Reduced -25.3k -25,349
80 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 71,69371.7k $2.0m $2.0m 0.00% Added +656 +656
81 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 71,51071.5k $2.0m $2.0m 0.00% Added +49.2k +49,152
82 HighTower Advisors, LLC 0.00% of their portfolio CHICAGO, IL 70,32870.3k $1.9m $1.9m 0.00% Added +2.5k +2,466
83 &PARTNERS 0.01% of their portfolio NASHVILLE, TN 67,03067.0k $1.8m $1.8m 0.01% Added +53.7k +53,690
84 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio COLUMBUS, OH 66,71866.7k $1.8m $1.8m 0.01% Added +5.3k +5,284
85 CAPITAL INTERNATIONAL LTD /CA/ 0.06% of their portfolio LOS ANGELES, CA 66,55566.6k $1.8m $1.8m 0.06% Added +11.1k +11,138
86 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 57,60757.6k $1.6m $1.6m 0.00% Reduced -180.4k -180,375
87 Vident Advisory, LLC 0.01% of their portfolio Alpharetta, GA 55,46555.5k $1.5m $1.5m 0.01% Reduced -2.8k -2,811
88 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 55,31955.3k $1.5m $1.5m 0.00% Added +300 +300
89 SIG North Trading, ULC 0.26% of their portfolio Bala Cynwyd, PA 53,49853.5k $1.5m $1.5m 0.26% New
90 Pictet Asset Management Holding SA 0.00% of their portfolio CAROUGE, V8 49,91649.9k $1.4m $1.4m 0.00% Reduced -549.0k -548,953
91 Greenline Partners, LLC 0.16% of their portfolio NEW YORK, NY 49,86749.9k $1.4m $1.4m 0.16% Reduced -216 -216
92 Heronetta Management, L.P. 1.00% of their portfolio NEW YORK, NY 46,49746.5k $1.7m $1.7m 1.00% Unchanged
93 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 46,49546.5k $1.3m $1.3m 0.00% Reduced -267.1k -267,072
94 Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio ZURICH, V8 44,49044.5k $1.2m $1.2m 0.00% Added +4.7k +4,700
95 ALPS ADVISORS INC 0.01% of their portfolio Denver, CO 41,49841.5k $1.1m $1.1m 0.01% Added +9.9k +9,905
96 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 38,49938.5k $1.1m $1.1m 0.00% Added +615 +615
97 OPPENHEIMER & CO INC 0.01% of their portfolio NEW YORK, NY 37,85837.9k $1.0m $1.0m 0.01% Reduced -1.7k -1,737
98 Aquatic Capital Management LLC 0.03% of their portfolio CHICAGO, IL 37,79337.8k $1.0m $1.0m 0.03% New
99 Investment Management Corp of Ontario 0.01% of their portfolio Toronto, Z4 37,34137.3k $1.0m $1.0m 0.01% Added +17.8k +17,823
100 Steadtrust LLC 0.58% of their portfolio ALLEN, TX 34,32034.3k $942.8k $942.8k 0.58% Reduced -170 -170