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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1125345	Macrogenics Inc	MGNX	Pharmaceutical Preparations (2834)	000000000

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1207833	L Arnold Oronsky	C/O Macrogenics, Inc. 9640 Medical Center Drive Rockville MD 20850		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2014-02-18	200,000	$36.50	1,708,716	No	4	S	Indirect	See Footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	See Footnote

Footnotes

These securities were sold as follows: 192,940 by InterWest Partners VIII, LP ("IW8"), 1,540 by InterWest Investors VIII, LP ("II8") and 5,520 by InterWest Investors Q VIII, LP ("IIQ8"). InterWest Management Partners VIII, LLC ("IMP8") is the General Partner of IW8, II8 and IIQ8 and has sole voting and investment control over the shares owned by IW8, II8 and IIQ8. Arnold Oronsky is a Managing Directors of IMP8.
The shares are held as follows: 1,648,219 by IW8; 13,262 by II8; and 47,235 by IIQ8. Arnold Oronsky disclaims beneficial ownership of these securities except to the extent of any pecuniary interest therein.