Citadel Advisors
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Citadel Advisors’s Allegro MicroSystems ALGM Stock Holding History

Citadel Advisors’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 		$691K Sell
21,900
-121,000
-85% -$4.17M ﹤0.01% 8517
2025
Q4 		$3.77M Buy
142,900
+15,800
+12% +$435K ﹤0.01% 4767
2025
Q3 		$3.71M Sell
127,100
-5,500
-4% -$178K ﹤0.01% 4904
2025
Q2 		$4.53M Buy
132,600
+97,300
+276% +$2.42M ﹤0.01% 4288
2025
Q1 		$887K Sell
35,300
-103,900
-75% -$2.59M ﹤0.01% 7231
2024
Q4 		$3.04M Buy
139,200
+22,400
+19% +$477K ﹤0.01% 4811
2024
Q3 		$2.72M Sell
116,800
-71,200
-38% -$1.79M ﹤0.01% 4963
2024
Q2 		$5.31M Sell
188,000
-109,800
-37% -$3.13M ﹤0.01% 3651
2024
Q1 		$8.03M Sell
297,800
-241,500
-45% -$6.98M ﹤0.01% 3233
2023
Q4 		$16.3M Buy
539,300
+254,300
+89% +$7.26M ﹤0.01% 2235
2023
Q3 		$9.1M Sell
285,000
-66,200
-19% -$2.69M ﹤0.01% 2810
2023
Q2 		$15.9M Buy
351,200
+25,300
+8% +$1.02M ﹤0.01% 2117
2023
Q1 		$15.6M Buy
325,900
+212,200
+187% +$8.63M ﹤0.01% 2217
2022
Q4 		$3.41M Buy
113,700
+98,900
+668% +$2.7M ﹤0.01% 4537
2022
Q3 		$323K Sell
14,800
-9,400
-39% -$218K ﹤0.01% 9402
2022
Q2 		$501K Buy
24,200
+7,200
+42% +$172K ﹤0.01% 8642
2022
Q1 		$483K Sell
17,000
-32,500
-66% -$929K ﹤0.01% 9481
2021
Q4 		$1.79M Buy
49,500
+33,000
+200% +$1.07M ﹤0.01% 6496
2021
Q3 		$527K Buy
16,500
+3,400
+26% +$100K ﹤0.01% 9728
2021
Q2 		$363K Buy
13,100
+800
+7% +$20.9K ﹤0.01% 10804
2021
Q1 		$312K Buy
+12,300
New +$352K ﹤0.01% 10755

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

Citadel Advisors's ALGM Position: Q1 2026 in Review

Citadel Advisors reduced its Allegro MicroSystems (ALGM) stake by 84% in Q1 2026, selling an estimated $74.5M and leaving 399,444 shares worth $12.6M. The position accounts for ﹤0.01% of the portfolio, ranked #2922.

Citadel Advisors first reported a position in ALGM in Q1 2021 and has held it in 19 quarters since. The position peaked at $109M in Q1 2025. 320 funds tracked by Wall St. Rank hold ALGM as of Q1 2026.

  • Citadel Advisors held 399,444 shares of Allegro MicroSystems worth $12.6M as of Q1 2026.
  • Citadel Advisors sold 2,161,076 Allegro MicroSystems shares in Q1 2026, an estimated $74.5M.
  • Allegro MicroSystems made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #2922 holding.
  • Citadel Advisors first reported a position in Allegro MicroSystems in Q1 2021 and has held it in 19 quarters since.
  • Citadel Advisors's Allegro MicroSystems position peaked at $109M in Q1 2025.
  • 320 funds tracked by Wall St. Rank held Allegro MicroSystems as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.