WAVEMAN · COMPANY

ALGM · Allegro Microsystems, Inc.

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TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475

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ALGM

Name: ALLEGRO MICROSYSTEMS, INC. (ALGM) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

ALLEGRO MICROSYSTEMS, INC.

SEMICONDUCTORS & ELECTRONICS · SEMICONDUCTORS & RELATED DEVICES · CIK 0000866291

FORM 144 · 2☆ WATCH

INSIDER NET · 180D

-$3.6M

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

221

13F, latest reported quarter

REVENUE GROWTH

+22.8%

XBRL, annual

NET MARGIN

-1.7%

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

net -$3.6M over 180 days

-$146.8K over 90 days

more than 54% of Semiconductors & Electronics

CONGRESS

no member of Congress has reported trading it

FUNDS

221 funds added or opened last quarter

more than 67% of Semiconductors & Electronics

REVENUE

+22.8% year over year

more than 69% of Semiconductors & Electronics

MARGIN

-1.7% net margin

more than 53% of Semiconductors & Electronics

BUYBACKS

no share repurchases reported

SHORT

5.9% of shares outstanding short · 4.4 days to cover · settled 2026-07-31

more than 62% of Semiconductors & Electronics

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

Insiders are net sellers: -$3.6M across 9 people in 180 days.

221 funds added or opened positions in the latest 13F quarter, of 376 holders.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN +20.0%

+20.0%12M

INSIDER SELLFORM 144

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

Insiders have filed to sell — before selling.

The record shows a net $3.6M sold by insiders over 180 days, 221 funds added last quarter, $146.8K in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

NVDA CRDO VICR MPWR VPLM ALAB PI MTSI MU AIP AVGO MSI

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, ALLEGRO MICROSYSTEMS, INC. insiders sold a net $3.6M of stock across 125 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-06.

INSIDER

FILED

VALUE

Raubacher Jennie

Director

SELL

2026-08-17

1,000.0

$45.3K

Hagen Erin

SVP, CHRO

SELL

2026-08-10

2,285.0

$101.4K

Madormo Richard

SVP, Worldwide Sales

SELL

2026-06-03

5,000.0

$263.6K

Coleman Troy

SVP, General Manager, Products

SELL

2026-05-22

4,500.0

$205.7K

Webster Roald Graham

VP, Chief Accounting Officer

SELL

2026-05-21

5,217.0

$234.2K

125 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 120 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

FMR LLC

25,581,021.0 sh

$1.8B

BlackRock, Inc.

13,889,324.0 sh

$967.0M

Invesco Ltd.

13,678,393.0 sh

$952.3M

JPMORGAN CHASE & CO

12,723,790.0 sh

$844.9M

Capital Research Global Investors

12,006,396.0 sh

$835.9M

SCHEDULE 13D/G

No 5%+ ownership filings

Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.

Planned sales · Form 144

Filed before the sale — intent, not a trade

Raubacher Jennie

FILED 2026-08-17

$45.3K

Hagen Erin

FILED 2026-08-10

$101.4K

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

Aztlan Global Stock Selection DM SMID ETF

$1.2M POSITION · AS OF 2026-04-30

2.8%

State Street(R) SPDR(R) S&P(R) Semiconductor ETF

$43.0M POSITION · AS OF 2026-03-31

2.7%

ClearBridge Small Cap Growth Fund

$50.1M POSITION · AS OF 2026-04-30

2.5%

First Trust NASDAQ Clean Edge Green Energy Index Fund

$12.3M POSITION · AS OF 2026-03-31

2.3%

Invesco Small Cap Value Fund

$215.3M POSITION · AS OF 2026-04-30

2.0%

Fidelity Electric Vehicles and Future Transportation ETF

$501.3K POSITION · AS OF 2026-03-31

2.0%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2026-03	2025-03	2024-03	2023-03
REVENUE	$890.1M	$725.0M	$1.0B	$973.7M
GROSS PROFIT	$412.0M	$321.5M	$574.5M	$546.1M
OPERATING INCOME	$18.5M	$-19.8M	$196.2M	$203.3M
NET INCOME	$-14.7M	$-72.8M	$152.9M	$187.4M
EPS (DILUTED)	-0.08	-0.39	0.78	0.97
OPERATING CASH FLOW	$163.1M	$61.9M	$181.7M	$193.2M
CASH	$168.8M	$121.3M	$212.1M	$351.6M
LONG-TERM DEBT	$285.7M	$344.7M	$249.6M	$25.0M
BUYBACKS	$0	$853.9M	$0	$0
DIVIDENDS PAID	—	—	—	$0

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-06 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE