[Form 4] Allegro MicroSystems, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Richard R. Lury, a director of Allegro MicroSystems, Inc. (ALGM), reported a non-derivative sale of 7,000 shares of ALGM common stock on 08/12/2025 at a weighted average price of $31.8104 per share (executed across prices from $31.80 to $31.83). After the transaction he directly beneficially owns 18,857 shares.

The Form 4 discloses no derivative transactions and includes an explanatory note about the weighted-average pricing. The filing was submitted by an attorney-in-fact and documents an insider sale but does not include additional company developments or context about the sale's purpose.

Positive

• Disclosure transparency: Form 4 reports the sale with a weighted-average price and specifies the execution price range.
• Continued ownership: The reporting director retains 18,857 shares after the sale, showing ongoing direct stake.

Negative

• Insider sale recorded: The director sold 7,000 shares, reducing direct holdings to 18,857.
• No additional context provided: The filing does not state the reason for the sale or whether it was part of a pre-arranged plan.

Insights

Securities Analyst

TL;DR: Director sold 7,000 ALGM shares at ~$31.81, reducing direct holdings to 18,857; only a non-derivative sale is reported.

The filing shows a straightforward Section 16 disclosure: a non-derivative sale of 7,000 shares on 08/12/2025 at a weighted average price of $31.8104, with execution prices ranging $31.80–$31.83. Table II reports no derivative activity. From a market-impact perspective, the form provides clear pricing and post-transaction ownership but contains no information on material corporate events, financing, or insider intent that would change the investment thesis.

Corporate Governance Expert

TL;DR: Form 4 was filed by an attorney-in-fact, discloses the sale and remaining direct ownership, and reflects compliance with disclosure rules.

The report documents compliance with Section 16 reporting: the director's sale, the weighted-average price, and the director's direct holdings after the sale (18,857 shares). The explanatory note clarifies the weighted-average pricing across a narrow range. No derivatives or other transactions are disclosed. The filing is transparent but does not provide context on the rationale for the sale, which is not required by the Form.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Lury Richard R.

(Last) (First) (Middle)

955 PERIMETER ROAD

(Street)

MANCHESTER NH 03103

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ALLEGRO MICROSYSTEMS, INC. [ ALGM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/12/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/12/2025		S		7,000	D	$31.8104(1)	18,857	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. The shares were sold at multiple prices ranging from $31.80 to $31.83. The Reporting Person undertakes to provide to Allegro MicroSystems, Inc. ("ALGM"), any security holder of ALGM, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

	/s/ Raymond Myer, Attorney-in-Fact for Richard R. Lury	08/13/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

Who reported the Form 4 transaction for ALGM?

Richard R. Lury, identified as a director of Allegro MicroSystems, Inc.

What transaction did Richard R. Lury report on Form 4 (ALGM)?

A non-derivative sale of 7,000 shares of ALGM common stock on 08/12/2025.

At what price were the ALGM shares sold in the Form 4?

The shares were sold at a weighted average price of $31.8104, executed across prices from $31.80 to $31.83.

How many ALGM shares does the reporting person own after the reported sale?

18,857 shares of ALGM are reported as directly beneficially owned following the transaction.

Does the Form 4 report any derivative transactions for ALGM?

No. Table II lists no derivative securities; only a non-derivative sale is reported in Table I.

Who signed the Form 4 filing for the reporting person?

Raymond Myer signed as attorney-in-fact for Richard R. Lury.