Simplex Trading
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Simplex Trading’s Allegro MicroSystems ALGM Stock Holding History

Simplex 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 		$12.6K Sell
400
-4,700
-92% -$162K ﹤0.01% 7150
2025
Q4 		$135K Sell
5,100
-11,500
-69% -$316K ﹤0.01% 4670
2025
Q3 		$484K Sell
16,600
-150,500
-90% -$4.87M ﹤0.01% 3869
2025
Q2 		$5.71M Buy
167,100
+151,400
+964% +$3.77M ﹤0.01% 1250
2025
Q1 		$394K Buy
15,700
+10,200
+185% +$255K ﹤0.01% 3649
2024
Q4 		$120K Sell
5,500
-259,100
-98% -$5.52M ﹤0.01% 5008
2024
Q3 		$6.17M Buy
264,600
+233,900
+762% +$5.88M ﹤0.01% 1344
2024
Q2 		$866K Sell
30,700
-108,100
-78% -$3.08M ﹤0.01% 3068
2024
Q1 		$3.74M Sell
138,800
-178,000
-56% -$5.14M ﹤0.01% 1841
2023
Q4 		$9.59M Sell
316,800
-29,700
-9% -$848K 0.01% 1109
2023
Q3 		$11.1M Buy
346,500
+41,600
+14% +$1.69M 0.01% 876
2023
Q2 		$13.8M Buy
304,900
+285,100
+1,440% +$11.5M 0.01% 727
2023
Q1 		$950K Buy
19,800
+12,800
+183% +$521K ﹤0.01% 2640
2022
Q4 		$210K Buy
7,000
+6,800
+3,400% +$185K ﹤0.01% 4163
2022
Q3 		$4K Sell
200
-1,700
-89% -$39.5K ﹤0.01% 8873
2022
Q2 		$39K Sell
1,900
-13,300
-88% -$317K ﹤0.01% 6799
2022
Q1 		$431K Buy
15,200
+14,900
+4,967% +$426K ﹤0.01% 4024
2021
Q4 		$10K Sell
300
-4,800
-94% -$156K ﹤0.01% 8991
2021
Q3 		$139K Hold
5,100
– – ﹤0.01% 6143
2021
Q2 		$141K Buy
5,100
+5,097
+169,900% +$133K ﹤0.01% 6223
2021
Q1 		$7K Buy
+3
New +$86 ﹤0.01% 8052

Other funds holding ALGM

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
JP Morgan Chase
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
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
ClearBridge Investments
ClearBridge Investments New York $115B AUM 24.78% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Simplex Trading's ALGM Position: Q1 2026 in Review

Simplex Trading opened a new position in Allegro MicroSystems (ALGM) in Q1 2026: 154 shares worth $4.86K. The stake represents ﹤0.01% of the portfolio and ranks #7914 among its holdings. This is a return to the name: Simplex Trading previously reported a position in ALGM as recently as Q3 2025.

Simplex Trading first reported a position in ALGM in Q1 2021 and has held it in 11 quarters since. The position peaked at $665K in Q1 2025. 320 funds tracked by Wall St. Rank hold ALGM as of Q1 2026.

  • Simplex Trading held 154 shares of Allegro MicroSystems worth $4.86K as of Q1 2026.
  • Allegro MicroSystems was a new Simplex Trading position in Q1 2026.
  • Allegro MicroSystems made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #7914 holding.
  • Simplex Trading first reported a position in Allegro MicroSystems in Q1 2021 and has held it in 11 quarters since.
  • Simplex Trading's Allegro MicroSystems position peaked at $665K in Q1 2025.
  • 320 funds tracked by Wall St. Rank held Allegro MicroSystems as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.