BlackRock
ALGM icon

BlackRock’s Allegro MicroSystems ALGM Stock Holding History

BlackRock’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
Q2 		$967M Buy
13,889,324
+1,394,456
+11% +$65.2M 0.01% 793
2026
Q1 		$394M Buy
12,494,868
+293,411
+2% +$10.1M 0.01% 1270
2025
Q4 		$322M Buy
12,201,457
+824,039
+7% +$22.7M 0.01% 1383
2025
Q3 		$332M Sell
11,377,418
-412,450
-3% -$13.3M 0.01% 1337
2025
Q2 		$403M Buy
11,789,868
+118,310
+1% +$2.95M 0.01% 1194
2025
Q1 		$293M Sell
11,671,558
-86,050
-0.7% -$2.15M 0.01% 1361
2024
Q4 		$257M Sell
11,757,608
-1,085,798
-8% -$23.1M 0.01% 1523
2024
Q3 		$299M Buy
12,843,406
+6,208,748
+94% +$156M 0.01% 1424
2024
Q2 		$187M Sell
6,634,658
-142,812
-2% -$4.07M ﹤0.01% 1652
2024
Q1 		$183M Buy
6,777,470
+210,753
+3% +$6.09M ﹤0.01% 1701
2023
Q4 		$199M Sell
6,566,717
-3,864
-0.1% -$110K 0.01% 1654
2023
Q3 		$210M Buy
6,570,581
+565,636
+9% +$23M 0.01% 1505
2023
Q2 		$271M Buy
6,004,945
+123,151
+2% +$4.99M 0.01% 1363
2023
Q1 		$282M Sell
5,881,794
-65,072
-1% -$2.65M 0.01% 1306
2022
Q4 		$179M Buy
5,946,866
+3,176,732
+115% +$86.7M 0.01% 1622
2022
Q3 		$60.5M Buy
2,770,134
+561,330
+25% +$13M ﹤0.01% 2298
2022
Q2 		$45.7M Buy
2,208,804
+326,430
+17% +$7.79M ﹤0.01% 2555
2022
Q1 		$53.5M Buy
1,882,374
+3,904
+0.2% +$112K ﹤0.01% 2546
2021
Q4 		$68M Sell
1,878,470
-4,488
-0.2% -$146K ﹤0.01% 2450
2021
Q3 		$60.2M Sell
1,882,958
-93,998
-5% -$2.77M ﹤0.01% 2539
2021
Q2 		$54.8M Sell
1,976,956
-616,866
-24% -$16.1M ﹤0.01% 2636
2021
Q1 		$65.8M Buy
2,593,822
+449,406
+21% +$12.8M ﹤0.01% 2443
2020
Q4 		$57.2M Buy
+2,144,416
New +$51.9M ﹤0.01% 2387

Other funds holding ALGM

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
ClearBridge Investments
ClearBridge Investments New York $121B AUM 27.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

BlackRock's ALGM Position: Q2 2026 in Review

BlackRock increased its Allegro MicroSystems (ALGM) stake by 11% in Q2 2026, buying an estimated $65.2M and bringing the position to 13,889,324 shares worth $967M. The position accounts for 0.01% of the portfolio, ranked #793.

BlackRock first reported a position in ALGM in Q4 2020 and has held it in 23 quarters since. 374 funds tracked by Wall St. Rank hold ALGM as of Q2 2026.

  • BlackRock held 13,889,324 shares of Allegro MicroSystems worth $967M as of Q2 2026.
  • BlackRock bought 1,394,456 Allegro MicroSystems shares in Q2 2026, an estimated $65.2M.
  • Allegro MicroSystems made up 0.01% of BlackRock's portfolio in Q2 2026, its #793 holding.
  • BlackRock first reported a position in Allegro MicroSystems in Q4 2020 and has held it in 23 quarters since.
  • 374 funds tracked by Wall St. Rank held Allegro MicroSystems as of Q2 2026.

Based on BlackRock's 13F filing for Q2 2026, filed 7 Aug 2026.