SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* OEP SKNA, L.P. (Last) (First) (Middle) C/O ONE EQUITY PARTNERS 510 MADISON AVENUE, 19TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 10/29/2020	3. Issuer Name and Ticker or Trading Symbol ALLEGRO MICROSYSTEMS, INC. [ ALGM ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	45,567,898	I	See footnote(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* OEP SKNA, L.P. (Last) (First) (Middle) C/O ONE EQUITY PARTNERS 510 MADISON AVENUE, 19TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* OEP VI GP, Ltd. (Last) (First) (Middle) C/O ONE EQUITY PARTNERS 510 MADISON AVENUE, 19TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* OEP VI General Partner, L.P. (Last) (First) (Middle) C/O ONE EQUITY PARTNERS 510 MADISON AVENUE, 19TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* OEP SKNA GP, LLC (Last) (First) (Middle) C/O ONE EQUITY PARTNERS 510 MADISON AVENUE, 19TH FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

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. 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.

Remarks:

Exhibit List Exhibit 24 - Power of Attorney.

	OEP VI SKNA, L.P., By: OEP VI SKNA GP, LLC, By: /s/ Christopher E. Brown, Attorney-in-Fact	10/29/2020
	OEP VI GP, Ltd., By: /s/ Christopher E. Brown, Attorney-in-Fact	10/29/2020
	OEP VI General Partner, L.P., By: OEP VI GP, Ltd., its general partner, By: /s/ Christopher E. Brown, Attorney-in-Fact	10/29/2020
	OEP SKNA GP, LLC, By: /s/ Christopher E. Brown, Attorney-in-Fact	10/29/2020
	** 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 5 (b)(v).
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