SEC FORM
3
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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| OMB APPROVAL |
| OMB Number: |
3235-0104 |
| Estimated average burden |
| hours per response: |
0.5 |
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1. Name and Address of Reporting Person*
| C/O MAGENTA THERAPEUTICS, INC. |
| 100 TECHNOLOGY SQUARE |
(Street)
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2. Date of Event Requiring Statement
(Month/Day/Year)
10/01/2021
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3. Issuer Name and Ticker or Trading Symbol
Magenta Therapeutics, Inc.
[ MGTA ]
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4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
|
Director |
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10% Owner |
| X |
Officer (give title below) |
|
Other (specify below) |
| Chief Medical Officer |
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5. If Amendment, Date of Original Filed
(Month/Day/Year)
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6. Individual or Joint/Group Filing (Check Applicable Line)
| X |
Form filed by One Reporting Person |
|
Form filed by More than One Reporting Person |
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| Table I - Non-Derivative Securities Beneficially Owned |
|---|
| 1. Title of Security (Instr.
4)
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2.
Amount of Securities Beneficially Owned (Instr.
4)
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3. Ownership Form: Direct (D) or Indirect (I) (Instr.
5)
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4. Nature of Indirect Beneficial Ownership (Instr.
5)
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Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
|
|---|
| 1. Title of Derivative Security (Instr.
4)
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2. Date Exercisable and Expiration Date
(Month/Day/Year) |
3. Title and Amount of Securities Underlying Derivative Security (Instr.
4)
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4. Conversion or Exercise Price of Derivative Security
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5. Ownership Form: Direct (D) or Indirect (I) (Instr.
5)
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6. Nature of Indirect Beneficial Ownership (Instr.
5)
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| Date Exercisable |
Expiration Date |
Title |
Amount or Number of Shares |
| Explanation of Responses: |
| Remarks: |
|
| No securities are beneficially owned. |
|
/s/ Thomas W. Beetham, Attorney-in-Fact for Jeffrey Humphrey |
10/04/2021 |
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** 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). |
| ** 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. |
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 authority; and
(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 4th day of October, 2021.
Employee: /s/ Jeffrey Humphrey
-------------------------------
Printed Name: Jeffrey Humphrey
