Ken Griffin’s South Bow Corp SOBO Stock Holding History

Ken Griffin’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 Q1	$13.4M	Sell	402,525 -297,675	-43%	-$9.04M	﹤0.01%	2837
2025 Q4	$19.2M	Buy	700,200 +677,279	+2,955%	+$18.4M	﹤0.01%	2397
2025 Q3	$648K	Buy	22,921 +7,184	+46%	+$195K	﹤0.01%	8511
2025 Q2	$408K	Buy	+15,737	New	+$400K	﹤0.01%	9102
2025 Q1	–	Sell	-100,320	Closed	-$2.51M	–	15843
2024 Q4	$2.36M	Buy	+100,320	New	+$2.46M	﹤0.01%	5285

Other funds holding SOBO

Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

ClearBridge Investments New York $115B AUM 24.78% 1-Year Est. Return

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

TIM

Thornburg Investment Management Santa Fe, New Mexico $9.63B AUM 35.65% 1-Year Est. Return

CIBC World Market Toronto, Ontario, Canada $61.3B AUM 39.33% 1-Year Est. Return

Ken Griffin's SOBO Position: Q1 2026 in Review

Ken Griffin reduced its South Bow Corp (SOBO) stake by 43% in Q1 2026, selling an estimated $9.04M and leaving 402,525 shares worth $13.4M. The position accounts for ﹤0.01% of the portfolio, ranked #2837.

Ken Griffin first reported a position in SOBO in Q4 2024 and has held it in 5 quarters since. The position peaked at $19.2M in Q4 2025. 302 funds tracked by Wall St. Rank hold SOBO as of Q1 2026.

Ken Griffin held 402,525 shares of South Bow Corp worth $13.4M as of Q1 2026.
Ken Griffin sold 297,675 South Bow Corp shares in Q1 2026, an estimated $9.04M.
South Bow Corp made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #2837 holding.
Ken Griffin first reported a position in South Bow Corp in Q4 2024 and has held it in 5 quarters since.
Ken Griffin's South Bow Corp position peaked at $19.2M in Q4 2025.
302 funds tracked by Wall St. Rank held South Bow Corp as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.