Paloma Partners’s Allegro MicroSystems ALGM Stock Holding History

Paloma Partners’s Portfolio ALGM Stock Details ALGM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-75,000	Closed	-$2.19M	–	60
2025 Q3	$2.19M	Buy	+75,000	New	+$2.43M	0.36%	50
2025 Q2	–	Sell	-708,968	Closed	-$17.8M	–	101
2025 Q1	$17.8M	Sell	708,968 -1,394,832	-66%	-$34.8M	2.2%	8
2024 Q4	$46M	Buy	2,103,800 +1,594,170	+313%	+$34M	2.05%	9
2024 Q3	$11.9M	Buy	+509,630	New	+$12.8M	0.33%	67
2021 Q4	–	Sell	-13,609	Closed	-$435K	–	1866
2021 Q3	$435K	Sell	13,609 -6,412	-32%	-$189K	0.01%	595
2021 Q2	$555K	Buy	+20,021	New	+$522K	0.01%	955
2021 Q1	–	Sell	-30,548	Closed	-$814K	–	2005
2020 Q4	$814K	Buy	+30,548	New	+$739K	0.02%	664

Other funds holding ALGM

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

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

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

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

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

Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

Paloma Partners's ALGM Position: Q4 2025 in Review

Paloma Partners sold out of Allegro MicroSystems (ALGM) in Q4 2025, closing a stake of 75,000 shares — an estimated $2.19M sold.

Paloma Partners first reported a position in ALGM in Q4 2020 and held it in 7 quarters. The position peaked at $46M in Q4 2024. 293 funds tracked by Wall St. Rank hold ALGM as of Q4 2025.

Paloma Partners reported no remaining Allegro MicroSystems position as of Q4 2025 after selling out during the quarter.
Paloma Partners sold 75,000 Allegro MicroSystems shares in Q4 2025, an estimated $2.19M.
Paloma Partners first reported a position in Allegro MicroSystems in Q4 2020 and held it in 7 quarters.
Paloma Partners's Allegro MicroSystems position peaked at $46M in Q4 2024.
293 funds tracked by Wall St. Rank held Allegro MicroSystems as of Q4 2025.

Based on Paloma Partners's 13F filing for Q4 2025, filed 17 Feb 2026.