Key facts
- This page summarizes Roald G. Webster's Form 4 filing for ALLEGRO MICROSYSTEMS, INC. (ALGM).
- 1 reported transaction and 0 derivative rows are listed below.
- Accepted by SEC: 22 May 2026, 16:16.
Roald G. Webster - 21 May 2026 Form 4 Insider Report for ALLEGRO MICROSYSTEMS, INC. (ALGM)
- Reporting relationship
- VP, Chief Accounting Officer
- Issuer ticker
- ALGM
- Reported as of
- 21 May 2026
- Net transaction value
- -$234,165
- SEC form
- 4
- Accepted by SEC
- 22 May 2026, 16:16:04 UTC
- Prior SEC filing
- 19 May 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Raymond Myer, Attorney-in-Fact for Roald G. Webster
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Roald G. Webster filed Form 4 for ALLEGRO MICROSYSTEMS, INC. (ALGM) on 22 May 2026.
Change
- Previous filing in this sequence was filed on 19 May 2026.
- Current net transaction value: -$234,165.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001970184
Primary reporting owner
Webster Roald Graham
- Relationship
- VP, Chief Accounting Officer
- Address
- 955 PERIMETER ROAD, MANCHESTER
- Signature
- /s/ Raymond Myer, Attorney-in-Fact for Roald G. Webster
- Signature date
- 22 May 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
ALGM
transaction
Common Stock
Sale
- Transaction value
- $234,165
- Shares
- -5,217
- Change %
- -28%
- Price
- $44.88
- Shares after
- 13,106
- Date
- 21 May 2026
- Ownership
- Direct
* marks a reported price that did not pass the local price check.