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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF
Filed pursuant to Section 16(a) of the
Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act
||December 31, 2014
|Estimated average burden|
|hours per response:
1. Name and Address of Reporting Person
|C/O MAGENTA THERAPEUTICS, INC.|
|100 TECHNOLOGY SQUARE|
2. Date of Event Requiring Statement
3. Issuer Name
Ticker or Trading Symbol
Magenta Therapeutics, Inc.
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
||Officer (give title below)
||Other (specify below)
5. If Amendment, Date of Original Filed
6. Individual or Joint/Group Filing (Check
||Form filed by One Reporting Person
||Form filed by More than One Reporting
|Table I - Non-Derivative Securities Beneficially Owned|
|1. Title of Security (Instr.
Amount of Securities Beneficially Owned (Instr.
||3. Ownership Form: Direct (D) or Indirect (I) (Instr.
||4. Nature of Indirect Beneficial Ownership (Instr.
Table II - Derivative Securities Beneficially Owned|
(e.g., puts, calls, warrants, options, convertible securities)
|1. Title of Derivative Security (Instr.
||2. Date Exercisable and Expiration Date
||3. Title and Amount of Securities Underlying Derivative Security (Instr.
||4. Conversion or Exercise Price of Derivative Security
||5. Ownership Form: Direct (D) or Indirect (I) (Instr.
||6. Nature of Indirect Beneficial Ownership (Instr.
||Amount or Number of Shares
|Explanation of Responses:|
|Exhibit 24.1: Power of Attorney|
||/s/ Cindy Driscoll, Attorney-in-Fact for Michael Vasconcelles
||** Signature of Reporting Person
|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,
|** Intentional misstatements or omissions of facts constitute Federal Criminal Violations
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,
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.|
Power of Attorney
Know all by these presents, that the undersigned hereby constitutes and
appoints each of Stephen F. Mahoney, Thomas W. Beetham and Cindy Driscoll,
signing singly, and with full power of substitution, as the undersigned's true
and lawful attorney-in-fact to:
(1) execute for and on behalf of the undersigned, in the undersigned's
capacity as an officer and/or director of Magenta Therapeutics, Inc., a
Delaware corporation (the "Company"), from time to time the following
Securities and Exchange Commission (the "SEC") forms: Forms 3, 4, and 5 in
accordance with Section 16(a) of the Securities Exchange Act of 1934, as
amended (the "Exchange Act"), and the rules thereunder;
(2) do and perform any and all acts for and on behalf of the undersigned
which may be necessary or desirable to complete and execute any such Form
3, 4, or 5, complete and execute any amendment or amendments thereto, and
timely file such form with the SEC and any stock exchange or similar
(3) take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit
to, in the best interest of, or legally required by, the undersigned, it
being understood that the documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Power of Attorney shall be in
such form and shall contain such terms and conditions as such
attorney-in-fact may approve in such attorney-in-fact's discretion.
The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or such
attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be
done by virtue of this power of attorney and the rights and powers herein
granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, is not assuming, nor
is the Company assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Exchange Act.
This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
foregoing attorneys-in-fact. This Power of Attorney shall expire as to any
individual attorney-in-fact if such attorney-in-fact ceases to be an officer of
the Company. This Power of Attorney may be filed with the SEC as a confirming
statement of the authority granted herein.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 17th day of August, 2022.
Name: /s/ Michael Vasconcelles
Printed Name: Michael Vasconcelles