Group One Trading’s Allegro MicroSystems ALGM Stock Holding History

Group One Trading’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
2026 Q1	$297K	Buy	+9,414	New	+$324K	﹤0.01%	3809
2025 Q4	–	Sell	-7,177	Closed	-$198K	–	8033
2025 Q3	$210K	Sell	7,177 -45,684	-86%	-$1.48M	﹤0.01%	4622
2025 Q2	$1.81M	Buy	52,861 +8,576	+19%	+$214K	﹤0.01%	2241
2025 Q1	$1.11M	Buy	44,285 +9,385	+27%	+$234K	﹤0.01%	2369
2024 Q4	$763K	Buy	+34,900	New	+$743K	﹤0.01%	2810
2024 Q3	–	Sell	-3,966	Closed	-$99.7K	–	6574
2024 Q2	$112K	Buy	3,966 +2,784	+236%	+$79.3K	﹤0.01%	3878
2024 Q1	$31.9K	Sell	1,182 -2,378	-67%	-$68.7K	﹤0.01%	5070
2023 Q4	$108K	Buy	+3,560	New	+$102K	﹤0.01%	4402
2023 Q2	–	Sell	-14,884	Closed	-$603K	–	7602
2023 Q1	$714K	Buy	+14,884	New	+$606K	﹤0.01%	2423
2022 Q2	–	Sell	-800	Closed	-$19.1K	–	7726
2022 Q1	$23K	Hold	800	–	–	﹤0.01%	6660
2021 Q4	$29K	Sell	800 -1,100	-58%	-$35.8K	﹤0.01%	6736
2021 Q3	$61K	Buy	1,900 +600	+46%	+$17.7K	﹤0.01%	6370
2021 Q2	$36K	Sell	1,300 -459	-26%	-$12K	﹤0.01%	6821
2021 Q1	$45K	Buy	+1,759	New	+$50.3K	﹤0.01%	6295

Other funds holding ALGM

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

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

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

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

Group One Trading's ALGM Position: Q1 2026 in Review

Group One Trading opened a new position in Allegro MicroSystems (ALGM) in Q1 2026: 9,414 shares worth $297K. The stake represents ﹤0.01% of the portfolio and ranks #3809 among its holdings. This is a return to the name: Group One Trading previously reported a position in ALGM as recently as Q3 2025.

Group One Trading first reported a position in ALGM in Q1 2021 and has held it in 14 quarters since. The position peaked at $1.81M in Q2 2025. 320 funds tracked by Wall St. Rank hold ALGM as of Q1 2026.

Group One Trading held 9,414 shares of Allegro MicroSystems worth $297K as of Q1 2026.
Allegro MicroSystems was a new Group One Trading position in Q1 2026.
Allegro MicroSystems made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #3809 holding.
Group One Trading first reported a position in Allegro MicroSystems in Q1 2021 and has held it in 14 quarters since.
Group One Trading's Allegro MicroSystems position peaked at $1.81M in Q2 2025.
320 funds tracked by Wall St. Rank held Allegro MicroSystems as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.