Allegro MicroSystems, Inc. insider trading

Bought

—

Sold

$1.7M

none on a 10b5-1 plan

Net

−$1.7M

Insiders

7

• Raubacher Jennie

  Director

  −$45.3K

  Aug 17, 2026

  1,000 sh · $45.32

• Hagen Erin

  SVP, CHRO

  −$101.4K

  Aug 10, 2026

  2,285 sh · $44.39

• Madormo Richard

  SVP, Worldwide Sales

  −$263.6K

  Jun 03, 2026

  5,000 sh · $52.72

• Coleman Troy

  SVP, General Manager, Products

  −$205.7K

  May 22, 2026

  4,500 sh · $45.72

• Webster Roald Graham

  VP, Chief Accounting Officer

  −$234.2K

  May 21, 2026

  5,217 sh · $44.89

• Kent Ian

  SVP, Global Operations

  −$109.8K

  May 18, 2026

  2,642 sh · $41.56

• Lynch Susan D

  Director

  −$759.6K

  May 14, 2026

  16,711 sh · $45.46

Largest purchase

+$285K of ALGM by Doogue Michael (SVP, CTO) on Nov 18, 2024.

Largest sale

−$665.9M of ALGM by Sanken Electric Co., Ltd. (10% Owner) on Jul 29, 2024.

From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.

SEC industry classification

Semiconductors & Related Devices

Headquarters

Manchester, NH

Listed on

Nasdaq

SEC Central Index Key

0000866291

Sourced from this company's own SEC submissions record. The industry label is SEC's Standard Industrial Classification, which is more specific than the Technology sector shown above.

The live dashboard is free to open. Alerts, watchlists, full filing history and each mover's benchmark-measured track record are Pro. Monitoring, not advice.

Open-market purchase (code P)

An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.

Grants and option exercises (codes A, M)

Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.

Cluster buy

Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.

Are ALGM insiders buying or selling?

Between May 14, 2026 and Aug 17, 2026, 7 Allegro MicroSystems, Inc. insiders made no open-market purchases and 7 sales worth $1.7M, a net sale of $1.7M.

How much ALGM stock have insiders bought and sold in the last two years?

Between Jul 01, 2024 and Jun 30, 2026, 11 Allegro MicroSystems, Inc. insiders made 3 open-market purchases worth $384.4K and 18 sales worth $903.9M. In the four quarters to Jun 30, 2026: no purchases and 14 sales ($5.7M). The largest purchase was Doogue Michael buying $285K on Nov 18, 2024. The largest sale was Sanken Electric Co., Ltd. selling $665.9M on Jul 29, 2024.

What was the largest recent ALGM insider trade?

Lynch Susan D (Director) sold $759.6K of ALGM stock on May 14, 2026 at about $45.46 a share.

When did an insider last buy ALGM shares?

No open-market purchase by a Allegro MicroSystems, Inc. insider appears in the filings from May 14, 2026 to Aug 17, 2026 — every recorded open-market transaction in that period was a sale. Before that, the most recent purchase in SEC's data was Doogue Michael buying $285K on Nov 18, 2024.

Where does ALGM insider trading data come from?

From the Form 4 filings Allegro MicroSystems, Inc.'s officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.