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* Matrix Partners IX, L.P. (Last) (First) (Middle) C/O MATRIX PARTNERS 101 MAIN STREET, 17TH FLOOR (Street) CAMBRIDGE MA 02142 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 07/14/2021	3. Issuer Name and Ticker or Trading Symbol Markforged Holding Corp [ MKFG ]
		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	28,495,912	D(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
Earnout Shares	(2)	07/14/2026	Common Stock	2,576,215	$0.00	D(2)

1. Name and Address of Reporting Person* Matrix Partners IX, L.P. (Last) (First) (Middle) C/O MATRIX PARTNERS 101 MAIN STREET, 17TH FLOOR (Street) CAMBRIDGE MA 02142 (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* Matrix IX Management Co. LLC (Last) (First) (Middle) C/O MATRIX PARTNERS 101 MAIN STREET, 17TH FLOOR (Street) CAMBRIDGE MA 02142 (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. These shares are held directly by Matrix Partners IX, L.P. ("Matrix IX"). Antonio Rodriguez is a member of the board of directors of the Issuer and a managing member of Matrix IX Management Co., L.L.C. ("Matrix IX MC"), the general partner of Matrix. As a managing member of Matrix IX MC, Mr. Rodriguez has sole voting and dispositive power with respect to these shares. Mr. Rodriguez disclaims beneficial ownership of these shares except to the extent of his pecuniary interest.

2. On July 14, 2021 (the "Closing Date") one, the Issuer's predecessor, consummated the business combination (the "Business Combination") pursuant to the terms of the merger agreement dated as of February 23, 2021 by and among one, Caspian Merger Sub Inc., a Delaware corporation and MarkForged, Inc., a Delaware corporation. On the Closing Date, Matrix received the right to acquire 2,576,215 shares of the Issuer's Common Stock in connection with the Business Combination, (i) 1,405,208 of which will be released from escrow if the value weighted average price ("VWAP") for at least 20 of any 30 consecutive trading days following the Closing Date is at least $12.50; and (ii) 1,171,007 of which will be released from such escrow if the VWAP for at least 20 of any 30 consecutive trading days following the Closing Date is at least $15.00. Any shares not eligible to be released within five years of the Closing Date will be forfeited and canceled.

	By: Matrix Partners IX, L.P. By: Matrix IX Management Co., L.L.C., its General Partner By: Antonio L. Rodriguez, Managing Member	07/14/2021
	By: Matrix IX Management Co., L.L.C. By: Antonio L. Rodriguez, Managing Member	07/14/2021
	** 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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