Mariner’s South Bow Corp SOBO Stock Holding History

Mariner’s Portfolio SOBO Stock Details SOBO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$320K	Buy	9,092 +439	+5%	+$15.5K	﹤0.01%	2798
2026 Q1	$288K	Buy	+8,653	New	+$263K	﹤0.01%	2914

Other funds holding SOBO

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Royal Bank of Canada Toronto, Ontario, Canada $672B AUM 33.48% 1-Year Est. Return

ClearBridge Investments New York $121B AUM 27.52% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Bank of Montreal Toronto, Ontario, Canada $304B AUM 35.64% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

TIM

Thornburg Investment Management Santa Fe, New Mexico $10.5B AUM 30.38% 1-Year Est. Return

Mackenzie Financial Toronto Ontario, Ontario, Canada $100B AUM 36.93% 1-Year Est. Return

CIBC World Market Toronto, Ontario, Canada $62.3B AUM 44.64% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Mariner's SOBO Position: Q2 2026 in Review

Mariner increased its South Bow Corp (SOBO) stake by 5.1% in Q2 2026, buying an estimated $15.5K and bringing the position to 9,092 shares worth $320K. The position accounts for ﹤0.01% of the portfolio, ranked #2798.

Mariner first reported a position in SOBO in Q1 2026 and has held it in 2 quarters since. 303 funds tracked by Wall St. Rank hold SOBO as of Q2 2026.

Mariner held 9,092 shares of South Bow Corp worth $320K as of Q2 2026.
Mariner bought 439 South Bow Corp shares in Q2 2026, an estimated $15.5K.
South Bow Corp made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #2798 holding.
Mariner first reported a position in South Bow Corp in Q1 2026 and has held it in 2 quarters since.
303 funds tracked by Wall St. Rank held South Bow Corp as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.