Ken Griffin’s First Business Financial Services FBIZ Stock Holding History

Ken Griffin’s Portfolio FBIZ Stock Details FBIZ Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$240K	Buy	+4,456	New	+$248K	﹤0.01%	10997
2025 Q3	–	Sell	-12,611	Closed	-$639K	–	13129
2025 Q2	$639K	Buy	+12,611	New	+$605K	﹤0.01%	8049
2025 Q1	–	Sell	-5,362	Closed	-$248K	–	14783
2024 Q4	$248K	Buy	+5,362	New	+$251K	﹤0.01%	10047
2022 Q4	–	Sell	-9,528	Closed	-$308K	–	15006
2022 Q3	$308K	Sell	9,528 -9,210	-49%	-$306K	﹤0.01%	9512
2022 Q2	$584K	Buy	18,738 +9,342	+99%	+$312K	﹤0.01%	8294
2022 Q1	$308K	Buy	+9,396	New	+$303K	﹤0.01%	10527
2021 Q3	–	Sell	-9,740	Closed	-$263K	–	14017
2021 Q2	$263K	Buy	+9,740	New	+$257K	﹤0.01%	11589

Other funds holding FBIZ

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

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

FBFS

First Business Financial Services Madison, Wisconsin $1.29B AUM 27.28% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $116B AUM 26.37% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

BFC

Banc Funds Company Chicago, Illinois $605M AUM 26% 1-Year Est. Return

CCM

Cutler Capital Management Worcester, Massachusetts $370M AUM 15.34% 1-Year Est. Return

Ken Griffin's FBIZ Position: Q1 2026 in Review

Ken Griffin opened a new position in First Business Financial Services (FBIZ) in Q1 2026: 4,456 shares worth $240K. The stake represents ﹤0.01% of the portfolio and ranks #10997 among its holdings. This is a return to the name: Ken Griffin previously reported a position in FBIZ as recently as Q2 2025.

Ken Griffin first reported a position in FBIZ in Q2 2021 and has held it in 7 quarters since. The position peaked at $639K in Q2 2025. 144 funds tracked by Wall St. Rank hold FBIZ as of Q1 2026.

Ken Griffin held 4,456 shares of First Business Financial Services worth $240K as of Q1 2026.
First Business Financial Services was a new Ken Griffin position in Q1 2026.
First Business Financial Services made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #10997 holding.
Ken Griffin first reported a position in First Business Financial Services in Q2 2021 and has held it in 7 quarters since.
Ken Griffin's First Business Financial Services position peaked at $639K in Q2 2025.
144 funds tracked by Wall St. Rank held First Business Financial Services as of Q1 2026.

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