# EDGAR Filing Document

**Accession Number:** 0000866291
**File Stem:** 0001829449-23-000002
**Filing Date:** 2023-2
**Character Count:** 11429
**Document Hash:** 990fb7b2315325681b75889b98d360f3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001829449-23-000002.hdr.sgml**: 20230206

**ACCESSION NUMBER**: 0001829449-23-000002

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230202

**FILED AS OF DATE**: 20230206

**DATE AS OF CHANGE**: 20230206

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** OEP VI GP, Ltd.
- **CENTRAL INDEX KEY:** 0001830389
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39675
- **FILM NUMBER:** 23591624

**BUSINESS ADDRESS:**
- **STREET 1:** C/O ALLEGRO MICROSYSTEMS, INC.
- **STREET 2:** 955 PERIMETER ROAD
- **CITY:** MANCHESTER
- **STATE:** NH
- **ZIP:** 03103
- **BUSINESS PHONE:** (603) 626-2300

**MAIL ADDRESS:**
- **STREET 1:** C/O ALLEGRO MICROSYSTEMS, INC.
- **STREET 2:** 955 PERIMETER ROAD
- **CITY:** MANCHESTER
- **STATE:** NH
- **ZIP:** 03103
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** OEP SKNA, L.P.
- **CENTRAL INDEX KEY:** 0001829449
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39675
- **FILM NUMBER:** 23591625

**BUSINESS ADDRESS:**
- **STREET 1:** 510 MADISON AVENUE
- **STREET 2:** 19TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
- **BUSINESS PHONE:** (212) 277-1500

**MAIL ADDRESS:**
- **STREET 1:** 510 MADISON AVENUE
- **STREET 2:** 19TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** OEP VI General Partner, L.P.
- **CENTRAL INDEX KEY:** 0001830391
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39675
- **FILM NUMBER:** 23591623

**BUSINESS ADDRESS:**
- **STREET 1:** C/O ALLEGRO MICROSYSTEMS, INC.
- **STREET 2:** 955 PERIMETER ROAD
- **CITY:** MANCHESTER
- **STATE:** NH
- **ZIP:** 03103
- **BUSINESS PHONE:** (603) 626-2300

**MAIL ADDRESS:**
- **STREET 1:** C/O ALLEGRO MICROSYSTEMS, INC.
- **STREET 2:** 955 PERIMETER ROAD
- **CITY:** MANCHESTER
- **STATE:** NH
- **ZIP:** 03103
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** OEP SKNA GP, LLC
- **CENTRAL INDEX KEY:** 0001830390
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39675
- **FILM NUMBER:** 23591622

**BUSINESS ADDRESS:**
- **STREET 1:** C/O ALLEGRO MICROSYSTEMS, INC.
- **STREET 2:** 955 PERIMETER ROAD
- **CITY:** MANCHESTER
- **STATE:** NH
- **ZIP:** 03103
- **BUSINESS PHONE:** (603) 626-2300

**MAIL ADDRESS:**
- **STREET 1:** C/O ALLEGRO MICROSYSTEMS, INC.
- **STREET 2:** 955 PERIMETER ROAD
- **CITY:** MANCHESTER
- **STATE:** NH
- **ZIP:** 03103
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ALLEGRO MICROSYSTEMS, INC.
- **CENTRAL INDEX KEY:** 0000866291
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEMICONDUCTORS & RELATED DEVICES [3674]
- **IRS NUMBER:** 462405937
- **FISCAL YEAR END:** 0331

**BUSINESS ADDRESS:**
- **STREET 1:** 955 PERIMETER ROAD
- **CITY:** MANCHESTER
- **STATE:** NH
- **ZIP:** 03103
- **BUSINESS PHONE:** (603) 626-2300

**MAIL ADDRESS:**
- **STREET 1:** 955 PERIMETER ROAD
- **CITY:** MANCHESTER
- **STATE:** NH
- **ZIP:** 03103

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ALLEGRO MICROSYSTEMS INC
- **DATE OF NAME CHANGE:** 19900730

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[x] 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**<sup>*</sup><br>OEP SKNA, L.P.<br><sub>(Last) (First) (Middle)</sub><br>C/O ONE EQUITY PARTNERS<br>510 MADISON AVENUE, 19TH FLOOR<br><sub>(Street)</sub><br>NEW YORK, NY 10022<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-02 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>ALLEGRO MICROSYSTEMS, INC. [ ALGM ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>OEP VI GP, Ltd.<br><sub>(Last) (First) (Middle)</sub><br>C/O ONE EQUITY PARTNERS<br>510 MADISON AVENUE, 19TH FLOOR<br><sub>(Street)</sub><br>NEW YORK, NY 10022<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-02 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>ALLEGRO MICROSYSTEMS, INC. [ ALGM ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>OEP VI General Partner, L.P.<br><sub>(Last) (First) (Middle)</sub><br>C/O ONE EQUITY PARTNERS<br>510 MADISON AVENUE, 19TH FLOOR<br><sub>(Street)</sub><br>NEW YORK, NY 10022<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-02 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>ALLEGRO MICROSYSTEMS, INC. [ ALGM ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>OEP SKNA GP, LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O ONE EQUITY PARTNERS<br>510 MADISON AVENUE, 19TH FLOOR<br><sub>(Street)</sub><br>NEW YORK, NY 10022<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-02 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>ALLEGRO MICROSYSTEMS, INC. [ ALGM ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2023-02-02 |  | S |  | 4980000 | D | $37.76 | 17649247 | I | See footnote<sup>(1)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) Represents securities held by OEP SKNA, L.P. OEP VI GP, Ltd. is the general partner of OEP VI General Partner, L.P., which is the managing member of OEP SKNA GP, LLC, which in turn is the general partner of OEP SKNA, L.P. Richard Cashin, David Han, James B. Cherry, Gregory Belinfanti, Paul Carl (Chip) Schorr IV, Johann-Melchior von Peter and Jamie Koven are the members of OEP VI GP, Ltd. Each of the entities and individuals mentioned above may be deemed to share beneficial ownership of the securities held by OEP SKNA, L.P. Each of the reporting persons disclaims any such beneficial ownership except to the extent of its or his pecuniary interest therein.

**Signature:** OEP VI SKNA, L.P.
By: OEP VI SKNA GP, LLC
By: /s/ David Han, Director  
**Date:** 2023-02-06

**Signature:** OEP VI GP, Ltd.
By: /s/ David Han, Director  
**Date:** 2023-02-06

**Signature:** OEP VI General Partner, L.P.
By: OEP VI GP, Ltd., its general partner
By: /s/ David Han, Director  
**Date:** 2023-02-06

**Signature:** OEP SKNA GP, LLC
By: /s/ David Han, Director  
**Date:** 2023-02-06

### Remarks:

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.**