Allegro MicroSystems, Inc.

ALGM • NASDAQ

Allegro MicroSystems, Inc. is a semiconductors company in the technology sector on NASDAQ, led by Vineet Nargolwala, with a market cap of $5.3B. As of Q3 2025, 73% of shares are held by 288 institutional investors, with FMR LLC as the largest holder at 14.84%.

President and Chief Executive OfficerVineet Nargolwala

Market Cap$5.3B

Semiconductors

Technology

Employees4.6K

Websiteallegromicro.com

Country

United States of America

Overview

Overview of institutional ownership in ALGM as of Q3 2025 with a market cap of $5.4B

All Institutions

Institutions: 288
Value Held: $4.0B
Shares Held: 135.9M
Avg Position: $13.8M
Median Position: $664.4K

Hedge Funds

Hedge Funds: 38
Value Held: $184.6M
Shares Held: 6.3M
Avg Position: $4.9M
Median Position: $1.6M

Ownership Breakdown

Institutional (non-HF)

70.01%

$3.8B

Hedge Funds

3.42%

$184.6M

Retail & Other

26.58%

$1.4B

Based on market cap of $5.4B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in ALGM as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
FMR LLC Institution	-	$802.1M 0.04% of portfolio	14.84% 27.5M shares	Q4 2020 Held for 4y 11m	$1.92T
Capital Research Global Investors RIA/Wealth	Sardar Sheraz Iftikhar CEO	$491.3M 0.09% of portfolio	9.09% 16.8M shares	Q3 2024 Held for 1y 2m	$532.36B
VANGUARD GROUP INC Institution	Salim Ramji CEO	$417.4M 0.01% of portfolio	7.72% 14.3M shares	Q4 2020 Held for 4y 11m	$6.69T
B BlackRock, Inc. Institution	-	$332.2M 0.01% of portfolio	6.15% 11.4M shares	Q4 2020 Held for 4y 11m	$5.67T
JPMORGAN CHASE & CO Institution	Jamie Dimon CEO	$225.8M 0.01% of portfolio	4.18% 7.7M shares	Q4 2020 Held for 4y 11m	$1.56T
Invesco Ltd. ETF Provider	Brian Christopher Hartigan CEO	$155.1M 0.02% of portfolio	2.87% 5.3M shares	Q4 2020 Held for 4y 11m	$633.08B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$154.2M 0.01% of portfolio	2.85% 5.3M shares	Q4 2020 Held for 4y 11m	$2.88T
Clearbridge Investments, LLC Long Only Manager	John Randolph Haller COO	$85.6M 0.06% of portfolio	1.58% 2.9M shares	Q4 2020 Held for 4y 11m	$132.87B
ALLIANCEBERNSTEIN L.P. Long Only Manager	Seth Perry Bernstein CEO	$78.6M 0.02% of portfolio	1.45% 2.7M shares	Q4 2020 Held for 4y 11m	$317.45B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$69.2M 0.00% of portfolio	1.28% 2.4M shares	Q4 2020 Held for 4y 11m	$1.57T

Net Capital Flow

Institutional buying and selling activity for ALGM in Q3 2025

Net Flow: −$316.8M
Buyers: 92
Sellers: 148
Total Bought: +$149.9M
Total Sold: −$466.7M
Avg Position: $13.9M

Biggest Buyers

Institution	Net Bought	Current Position
Capital Research Global Investors RIA/Wealth	+$26.9M +920.4K shares	$491.3M 16.8M shares
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	+$20.2M +692.2K shares	$28.8M 986.8K shares
BANK OF AMERICA CORP /DE/ Institution	+$14.4M +493.9K shares	$27.8M 952.7K shares
S Squarepoint Ops LLC Hedge Fund•Quant	+$9.9M +339.9K shares	$9.9M 339.9K shares
AQR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$6.7M +229.7K shares	$7.3M 250.4K shares
ING INVESTMENT MANAGEMENT LLC Insurance Manager	+$6.6M +225.6K shares	$27.5M 942.1K shares
FMR LLC Institution	+$6.4M +220.4K shares	$802.1M 27.5M shares
J JANE STREET GROUP, LLC Institution	+$6.1M +210.3K shares	$6.1M 210.3K shares
LOOMIS SAYLES & CO L P Long Only Manager	+$4.0M +135.7K shares	$23.4M 802.0K shares
B BNP PARIBAS ARBITRAGE, SA Institution	+$3.7M +125.9K shares	$4.2M 144.6K shares

Biggest Sellers

Institution	Net Sold	Current Position
WELLINGTON MANAGEMENT CO LLP Long Only Manager	−$43.1M −1.5M shares	$33.9M 1.2M shares
FRONTIER CAPITAL MANAGEMENT CO LLC Long Only Manager	−$42.9M −1.5M shares	$26.2M 895.8K shares
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC Hedge Fund•Long/Short	−$39.5M −1.2M shares	Sold Off 0 shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	−$34.7M −1.2M shares	$9.7M 331.6K shares
N Neuberger Berman Group LLC Institution	−$29.0M −994.9K shares	$7.3M 249.6K shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$28.4M −973.8K shares	$14.6M 498.3K shares
Invesco Ltd. ETF Provider	−$27.5M −942.1K shares	$155.1M 5.3M shares
A ADAGE CAPITAL PARTNERS GP LLC Institution	−$17.5M −600.9K shares	$46.0M 1.6M shares
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Long Only Manager	−$13.8M −472.7K shares	$1.2M 40.4K shares
B BlackRock, Inc. Institution	−$12.0M −412.5K shares	$332.2M 11.4M shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited ALGM in Q3 2025

New Positions: 20
New Value: $8.7M
Exited Positions: 42
Exited Value: $80.3M

New Positions

Institution	Position Value
Candriam Luxembourg S.C.A. Long Only Manager	$2.6M 89.2K shares
S Sphera Management Technology Funds Ltd Institution	$1.2M 40.0K shares
P Parallax Volatility Advisers, LLC Hedge Fund•Vol Arbitrage	$767.9K 26.3K shares
PRENTISS SMITH & CO INC RIA/Wealth	$731.8K 25.1K shares
Q Quantessence Capital LLC Hedge Fund•Quant	$568.3K 19.5K shares
Point72 Ltd RIA/Wealth	$432.5K 14.8K shares
Voleon Capital Management LP Hedge Fund•Quant	$411.7K 14.1K shares
WORLDQUANT MILLENNIUM QUANTITATIVE STRATEGIES LLC Hedge Fund•Multi-Strategy	$333.1K 11.4K shares
Diversified Trust Co RIA/Wealth	$295.1K 10.1K shares
P Point72 Asia Pte. Ltd. Institution	$293.4K 10.0K shares

Exited Positions

Institution	Previous Position
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC Hedge Fund•Long/Short	$39.5M 1.2M shares
CITIGROUP INC Institution	$6.0M 176.5K shares
G G2 Investment Partners Management LLC Hedge Fund•Long/Short	$4.4M 130.0K shares
ExodusPoint Capital Management, LP Hedge Fund•Multi-Strategy	$4.4M 128.8K shares
L Lightrock Netherlands B.V. Institution	$4.0M 137.8K shares
Bridgewater Associates, LP Hedge Fund•Global Macro	$2.6M 77.3K shares
I Itau Unibanco Holding S.A. Institution	$2.4M 70.0K shares
T TEXAS PERMANENT SCHOOL FUND Institution	$1.8M 54.0K shares
P Polymer Capital Management LLC Hedge Fund•Multi-Strategy	$1.7M 50.3K shares
R ROBECOSAM AG Institution	$1.5M 45.0K shares

Options Activity

Institutions with the largest Call and Put options positions in ALGM as of Q3 2025

Call Positions: 14
Call Value: $12.2M
Put Positions: 18
Put Value: $94.4M

Call Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$3.7M 1.3K contracts
P PEAK6 LLC Institution	$2.0M 697.0 contracts
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$1.9M 643.0 contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$1.1M 390.0 contracts
W WOLVERINE TRADING, LLC Institution	$632.8K 217.0 contracts
C Cubist Systematic Strategies, LLC Institution	$581.1K 199.0 contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$563.6K 193.0 contracts
UBS Group AG Institution	$551.9K 189.0 contracts
Walleye Trading LLC RIA/Wealth	$458.4K 157.0 contracts
J JANE STREET GROUP, LLC Institution	$449.7K 154.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$33.7M 11.6K contracts
J JANE STREET GROUP, LLC Institution	$23.9M 8.2K contracts
Caption Management, LLC Hedge Fund•Long/Short	$22.2M 7.6K contracts
P Parallax Volatility Advisers, LLC Hedge Fund•Vol Arbitrage	$8.8M 3.0K contracts
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$1.8M 602.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$1.2M 394.0 contracts
UBS Group AG Institution	$1.0M 350.0 contracts
Walleye Trading LLC RIA/Wealth	$554.8K 190.0 contracts
C Cubist Systematic Strategies, LLC Institution	$473.0K 162.0 contracts
W WOLVERINE TRADING, LLC Institution	$437.4K 150.0 contracts

Most Committed Institutions

Institutions with ALGM as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
S S Squared Technology, LLC Hedge Fund•Long/Short	Kenneth A Goldblatt Managing Partner	4.41% $11.6M	0.21% 397.5K shares	Q1 2021 Held for 4y 8m	$263.0M
A Analog Century Management LP Hedge Fund•Long/Short	Val Zlatev Founder	1.84% $34.3M	0.63% 1.2M shares	Q2 2023 Held for 2y 5m	$1.9B
E ECOFI INVESTISSEMENTS SA Institution	-	1.44% $1.2M	0.02% 41.2K shares	Q2 2024 Held for 1y 5m	$83.3M
SUNRISE PARTNERS LIMITED PARTNERSHIP /CT Hedge Fund•Multi-Strategy	Ravi Mohan Singh CEO	1.08% $2.2M	0.04% 75.0K shares	Q3 2024 Held for 1y 2m	$202.2M
Pier Capital, LLC Long Only Manager	Jan Eric Parsons Chairman	1.07% $6.9M	0.13% 235.1K shares	Q3 2024 Held for 1y 2m	$639.8M
S Sphera Management Technology Funds Ltd Institution	-	0.66% $1.2M	0.02% 40.0K shares	Q3 2025 Held for 2 months	$177.7M
SEGALL BRYANT & HAMILL Long Only Manager	Carolyn B Goldhaber President	0.52% $38.7M	0.72% 1.3M shares	Q1 2025 Held for 8 months	$7.5B
A AXQ CAPITAL, LP Hedge Fund•Market Neutral	Taro Hsu Kuriyama COO	0.43% $1.1M	0.02% 38.7K shares	Q3 2025 Held for 2 months	$261.9M
PRENTISS SMITH & CO INC RIA/Wealth	Karlie Packard Borst President	0.41% $731.8K	0.01% 25.1K shares	Q3 2025 Held for 2 months	$177.1M
Semanteon Capital Management, LP Hedge Fund•Long/Short	Rajat Lal Managing Partner	0.31% $248.3K	0.00% 8.5K shares	Q3 2025 Held for 2 months	$79.7M

Hedge Fund Spotlight

Discover hedge funds investing in ALGM

Point72 Asset Management, L.P.

Hedge Fund • Multi-Strategy

Portfolio ManagerSteven Alan Cohen

Portfolio Value: $43.2B
Positions: 1,279
Last Reported: Q3 2025

Sector Allocation

Position in Allegro MicroSystems, Inc.

Market Value: $28.8M
Shares Held: 986.8K
Portfolio Weight: 0.07%
Owned Since: 2025-Q2

Top Holding	Sector	Market Value	Weight
1 Nvidia NVDA	Semiconductors Technology	$1.4B	3.13%
2 Microsoft MSFT	Software - Infrastructure Technology	$1.3B	3.10%
3 Arista Networks ANET	Computer Hardware Technology	$803.1M	1.86%