Allegro Microsystems (ALGM) director receives 594 restricted stock units in grant

Rhea-AI Filing Summary

ALLEGRO MICROSYSTEMS, INC. director Brian C. White reported receiving an equity award in the form of restricted stock units. He acquired 594 shares of common stock-equivalent RSUs on June 17, 2026 at a stated price of $0.00 per share.

Each RSU represents a contingent right to receive one share of Allegro common stock. According to the disclosure, these RSUs will vest on the date of the next annual meeting following the grant date, after which the underlying shares can be delivered, subject to applicable terms.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider WHITE BRIAN C

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	594	$0.00	--

Holdings After Transaction: Common Stock — 594 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

RSUs granted: 594 units Grant price per share: $0.00 per share Shares held after grant: 594 shares +1 more

4 metrics

RSUs granted 594 units Restricted stock units awarded on June 17, 2026

Grant price per share $0.00 per share Stated transaction price for RSU award

Shares held after grant 594 shares Total direct common stock-equivalent holdings post-transaction

Vesting condition Vests at next annual meeting RSUs vest on next annual meeting date after grant

Key Terms

Restricted Stock Units ("RSUs"), contingent right, annual meeting, Grant, award, or other acquisition

4 terms

Restricted Stock Units ("RSUs") financial

"Represents an award of Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share"

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

contingent right financial

"Each RSU represents a contingent right to receive one share of common stock."

annual meeting financial

"The RSUs will vest on the date of the next annual meeting following the grant date."

A company's annual meeting is a yearly gathering where owners (shareholders) and the board review performance, ask questions, and vote on key matters like electing directors, approving auditor choices, and sometimes setting pay or dividend policies. For investors it matters because decisions made and votes cast can change who runs the company, influence strategy and payouts, and affect the value or direction of their investment—similar to a homeowners’ meeting where rules and leaders that shape your property’s value are decided.

Grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition""

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Form 4 Insider Transactions: What Each Field Means →

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
Estimated average burden
hours per response:			0.5

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^*

WHITE BRIAN C

(Last) (First) (Middle)

955 PERIMETER ROAD

(Street)

MANCHESTER NEW HAMPSHIRE 03103

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/17/2026

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

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

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

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	06/17/2026		A		594(1)	A	$0.00	594	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. Represents an award of Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest on the date of the next annual meeting following the grant date.

	/s/ Raymond Myer, Attorney-in-Fact for Brian C. White	06/18/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did ALGM director Brian C. White report?

Brian C. White reported receiving an award of 594 restricted stock units in Allegro common stock. The Form 4 shows this as a grant-type acquisition with no cash price per share and direct ownership following the transaction of 594 shares.

How many Allegro Microsystems (ALGM) shares were granted in this Form 4?

The filing reports an equity award of 594 restricted stock units linked to Allegro common stock. After the grant, Brian C. White’s direct holdings shown in this filing total 594 shares, matching the size of the RSU award disclosed in the transaction details.

At what price were the ALGM restricted stock units granted?

The Form 4 lists the transaction price per share as $0.00 for the 594 RSUs. This reflects that the units were granted rather than bought in the open market, consistent with a stock-based award rather than a cash share purchase.

When will Brian C. White’s ALGM RSUs vest?

The footnote states these restricted stock units will vest on the date of the next annual meeting following the grant date. Vesting means the contingent right to receive one Allegro common share per RSU becomes effective once that meeting date occurs.

What does each Allegro Microsystems (ALGM) RSU represent in this grant?

Each restricted stock unit represents a contingent right to receive one share of Allegro common stock. Delivery of the underlying shares depends on vesting, which in this case occurs at the next annual shareholder meeting following the June 17, 2026 grant.