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EX-31.2 - EX-31.2 - MACROGENICS INCmgnxexhibit31-2201910x.htm
10-K/A - 10-K/A - MACROGENICS INCmgnx-20191231.htm

EXHIBIT 31.1
I, Scott Koenig, certify that:
1.I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K of MacroGenics, Inc. (this “Report”); and
2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Report.


/s/ Scott Koenig
Scott Koenig, M.D., Ph.D.
President and Chief Executive Officer
(Principal Executive Officer)
Date: March 2, 2020