FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN 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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(Print or Type Responses)
1. Name and Address of Reporting Person *
Hartz Kevin
   2. Issuer Name and Ticker or Trading Symbol
Markforged Holding Corp [MKFG] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O MARKFORGED HOLDING CORPORATION, 480 PLEASANT STREET		 3. Date of Earliest Transaction (Month/Day/Year)
02/04/2022
(Street)

WATERTOWN, MA 02472		 4. If Amendment, Date 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
(City)
(State)
(Zip)
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 (1) 02/04/2022   J V 148,770 A $ 0 148,770 I See footnote (2)
Common Stock (1) 02/04/2022   J V 148,770 A $ 0 148,770 I See footnote (3)
Common Stock (1) 02/04/2022   J V 1,790,460 A $ 0 1,790,460 I See footnote (4)

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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 Underlying Securities
(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 of Derivative Security: 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
Warrant to Purchase Common Stock (right to buy) (5) $ 11.5             08/13/2021 07/14/2026 Common Stock 89,775   89,775 I See footnote (2)
Warrant to Purchase Common Stock (right to buy) (5) $ 11.5             08/13/2021 07/14/2026 Common Stock 89,775   89,775 I See footnote (3)
Warrant to Purchase Common Stock (right to buy) (5) $ 11.5             08/13/2021 07/14/2026 Common Stock 1,080,450   1,080,450 I See footnote (4)

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Hartz Kevin
C/O MARKFORGED HOLDING CORPORATION
480 PLEASANT STREET
WATERTOWN, MA 02472		   X      

Signatures

 /s/ Stephen Karp, Attorney-in-Fact   02/25/2022
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) The Class B Ordinary Shares of one, the Issuer's predecessor, automatically converted to Class A Ordinary Shares, which then automatically converted to shares of Common Stock of the Issuer upon the consummation of the merger between the Issuer and one, on July 14, 2021. Of the shares reported herein, 50% are subject to vesting conditions, and will be forfeited if not vested as of July 14, 2026. 25% will vest if the volume-weighted average price of Issuer's common stock is at least $12.50 for any 20 trading days within a 30-trading-day period, and 25% will vest if such price is at least $15.00 for any 20 trading days within a 30-trading-day-period. Such unvested shares are held directly by A-Star LLC ("A-Star"), of which the trusts described below are members. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein.
(2) Consists of (i) shares and warrants held directly by The Kevin Earnest Hartz 2020 Annuity Trust U/A/D (of which the Reporting Person is trustee), reflecting a pro rata distribution of certain securities held by A-Star to its members prior to the date of this report (the "Distribution"), and (ii) shares held indirectly by such trust, reflecting the proportionate interest of such trust in the shares held by A-Star..
(3) Consists of (i) shares and warrants held directly by The Julia D. Hartz 2020 Annuity Trust U/A/D (of which the spouse of the Reporting Person is trustee), reflecting the Distribution, and (ii) shares held indirectly by such trust, reflecting the proportionate interest of such trust in the shares held by A-Star.
(4) Consists of (i) shares and warrants held directly by the Hartz Family Revocable Trust (of which the Reporting Person is co-trustee), reflecting the Distribution, and (ii) shares held indirectly by such trust, reflecting the proportionate interest of such trust in the shares held by A-Star.
(5) The warrants are exercisable for shares of common stock of the Issuer.
 
Remarks:
This Report on Form 4 is filed voluntarily to reflect certain changes in the form of the Reporting Person's indirect beneficial ownership in the securities of the Issuer.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.