Ken Griffin’s FST Corp KBSX Stock Holding History

Ken Griffin’s Portfolio KBSX Stock Details KBSX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$15.7K	Buy	+11,685	New	+$14.9K	﹤0.01%	12708
2025 Q3	–	Sell	-15,268	Closed	-$27K	–	14511
2025 Q2	$27K	Buy	+15,268	New	+$27.8K	﹤0.01%	12026

Other funds holding KBSX

HCI

Harraden Circle Investments New York $499M AUM 19.71% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Ken Griffin's KBSX Position: Q1 2026 in Review

Ken Griffin opened a new position in FST Corp (KBSX) in Q1 2026: 11,685 shares worth $15.7K. The stake represents ﹤0.01% of the portfolio and ranks #12708 among its holdings. This is a return to the name: Ken Griffin previously reported a position in KBSX as recently as Q2 2025.

Ken Griffin first reported a position in KBSX in Q2 2025 and has held it in 2 quarters since. The position peaked at $27K in Q2 2025. 4 funds tracked by Wall St. Rank hold KBSX as of Q1 2026.

Ken Griffin held 11,685 shares of FST Corp worth $15.7K as of Q1 2026.
FST Corp was a new Ken Griffin position in Q1 2026.
FST Corp made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #12708 holding.
Ken Griffin first reported a position in FST Corp in Q2 2025 and has held it in 2 quarters since.
Ken Griffin's FST Corp position peaked at $27K in Q2 2025.
4 funds tracked by Wall St. Rank held FST Corp as of Q1 2026.

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