Jane Street
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Jane Street’s Allegro MicroSystems ALGM Stock Holding History

Jane Street’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 		$358K Sell
5,136
-10,343
-67% -$484K ﹤0.01% 8817
2026
Q1 		$488K Sell
15,479
-165,699
-91% -$5.71M ﹤0.01% 8100
2025
Q4 		$4.78M Sell
181,178
-29,170
-14% -$803K ﹤0.01% 3297
2025
Q3 		$6.14M Buy
+210,348
New +$6.8M ﹤0.01% 3113
2025
Q2 		– Sell
-105,698
Closed -$2.63M – 9524
2025
Q1 		$2.66M Buy
105,698
+64,925
+159% +$1.62M ﹤0.01% 3906
2024
Q4 		$891K Buy
+40,773
New +$869K ﹤0.01% 5605
2024
Q3 		– Sell
-113,514
Closed -$2.85M – 9506
2024
Q2 		$3.21M Buy
113,514
+38,596
+52% +$1.1M ﹤0.01% 3708
2024
Q1 		$2.02M Sell
74,918
-50,604
-40% -$1.46M ﹤0.01% 4108
2023
Q4 		$3.8M Buy
125,522
+52,796
+73% +$1.51M ﹤0.01% 3258
2023
Q3 		$2.32M Sell
72,726
-15,719
-18% -$639K ﹤0.01% 3802
2023
Q2 		$3.99M Buy
88,445
+47,639
+117% +$1.93M ﹤0.01% 3058
2023
Q1 		$1.96M Buy
40,806
+31,859
+356% +$1.3M ﹤0.01% 3865
2022
Q4 		$269K Buy
+8,947
New +$244K ﹤0.01% 7204
2022
Q3 		– Sell
-26,917
Closed -$557K – 9621
2022
Q2 		$557K Buy
26,917
+7,718
+40% +$184K ﹤0.01% 6531
2022
Q1 		$545K Buy
+19,199
New +$549K ﹤0.01% 7302
2021
Q4 		– Sell
-133,175
Closed -$4.26M – 9987
2021
Q3 		$4.26M Buy
+133,175
New +$3.92M ﹤0.01% 3002
2021
Q1 		– Sell
-26,987
Closed -$719K – 9036
2020
Q4 		$719K Buy
+26,987
New +$653K ﹤0.01% 5175

Other funds holding ALGM

BlackRock
BlackRock New York $6.73T AUM 46.02% 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

Jane Street's ALGM Position: Q2 2026 in Review

Jane Street reduced its Allegro MicroSystems (ALGM) stake by 67% in Q2 2026, selling an estimated $484K and leaving 5,136 shares worth $358K. The position accounts for ﹤0.01% of the portfolio, ranked #8817.

Jane Street first reported a position in ALGM in Q4 2020 and has held it in 17 quarters since. The position peaked at $6.14M in Q3 2025. 352 funds tracked by Wall St. Rank hold ALGM as of Q2 2026.

  • Jane Street held 5,136 shares of Allegro MicroSystems worth $358K as of Q2 2026.
  • Jane Street sold 10,343 Allegro MicroSystems shares in Q2 2026, an estimated $484K.
  • Allegro MicroSystems made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #8817 holding.
  • Jane Street first reported a position in Allegro MicroSystems in Q4 2020 and has held it in 17 quarters since.
  • Jane Street's Allegro MicroSystems position peaked at $6.14M in Q3 2025.
  • 352 funds tracked by Wall St. Rank held Allegro MicroSystems as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.