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Filing Details

Accession Number:: 0001144204-18-035834
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2018-06-26 16:44:05
Reporting Period:: 2018-06-25

Accepted Time:: 2018-06-26 16:44:05
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1674365	Aptinyx Inc.	APTX	()	DE

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1193586	Adams Street Partners Llc	One North Wacker Drive Suite 2200 Chicago IL 60606		No	No	Yes	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2018-06-25	159,749	$0.00	211,888	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	182,568	$0.00	394,456	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	121,331	$0.00	515,787	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	22,877	$16.00	538,664	No	4	P	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	120,841	$0.00	160,281	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	138,103	$0.00	298,384	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	91,781	$0.00	390,165	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	17,305	$16.00	407,470	No	4	P	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	164,365	$0.00	218,011	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	187,844	$0.00	405,855	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	124,838	$0.00	530,693	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	23,538	$16.00	554,231	No	4	P	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	126,168	$0.00	126,168	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	144,192	$0.00	270,360	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	95,827	$0.00	366,187	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	18,068	$16.00	384,255	No	4	P	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	109,921	$0.00	109,921	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	125,623	$0.00	235,544	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	83,487	$0.00	319,031	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	15,741	$16.00	334,772	No	4	P	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	366,404	$0.00	366,404	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	418,745	$0.00	785,149	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	278,290	$0.00	1,063,439	No	4	C	Indirect	See footnote
Common Stock	Acquisiton	2018-06-25	52,471	$16.00	1,115,910	No	4	P	Indirect	See footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	C	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	P	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	P	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	P	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	P	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	P	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	C	Indirect	See footnote
No	4	P	Indirect	See footnote

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Series A-1 Convertible Preferred Stock	Disposition	2018-06-25	4,406,861	$0.00	159,749	$0.00
Common Stock	Series A-2 Convertible Preferred Stock	Disposition	2018-06-25	5,036,369	$0.00	182,568	$0.00
Common Stock	Series B Convertible Preferred Stock	Disposition	2018-06-25	3,347,072	$0.00	121,331	$0.00
Common Stock	Series A-1 Convertible Preferred Stock	Disposition	2018-06-25	3,333,558	$0.00	120,841	$0.00
Common Stock	Series A-2 Convertible Preferred Stock	Disposition	2018-06-25	3,809,747	$0.00	138,103	$0.00
Common Stock	Series B Convertible Preferred Stock	Disposition	2018-06-25	2,531,884	$0.00	91,781	$0.00
Common Stock	Series A-1 Convertible Preferred Stock	Disposition	2018-06-25	4,534,213	$0.00	164,365	$0.00
Common Stock	Series A-2 Convertible Preferred Stock	Disposition	2018-06-25	5,181,913	$0.00	187,844	$0.00
Common Stock	Series B Convertible Preferred Stock	Disposition	2018-06-25	3,443,798	$0.00	124,838	$0.00
Common Stock	Series A-1 Convertible Preferred Stock	Disposition	2018-06-25	3,480,521	$0.00	126,168	$0.00
Common Stock	Series A-2 Convertible Preferred Stock	Disposition	2018-06-25	3,977,704	$0.00	144,192	$0.00
Common Stock	Series B Convertible Preferred Stock	Disposition	2018-06-25	2,643,505	$0.00	95,827	$0.00
Common Stock	Series A-1 Convertible Preferred Stock	Disposition	2018-06-25	3,032,316	$0.00	109,921	$0.00
Common Stock	Series A-2 Convertible Preferred Stock	Disposition	2018-06-25	3,465,474	$0.00	125,623	$0.00
Common Stock	Series B Convertible Preferred Stock	Disposition	2018-06-25	2,303,087	$0.00	83,487	$0.00
Common Stock	Series A-1 Convertible Preferred Stock	Disposition	2018-06-25	10,107,719	$0.00	366,404	$0.00
Common Stock	Series A-2 Convertible Preferred Stock	Disposition	2018-06-25	11,551,579	$0.00	418,745	$0.00
Common Stock	Series B Convertible Preferred Stock	Disposition	2018-06-25	7,676,955	$0.00	278,290	$0.00

Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	695,326	Indirect	See footnote

Footnotes

The shares are held directly by Adams Street 2012 Direct Fund LP ("AS 2012").
Each share of Series A-1 Convertible Preferred Stock, Series A-2 Convertible Preferred Stock and Series B Convertible Preferred Stock automatically converted into shares of Common Stock on a 27.58621-for-one basis immediately prior to the closing of the Issuer's initial public offering without payment or consideration. The shares of Series A-1 Convertible Preferred Stock, Series A-2 Convertible Preferred Stock and Series B Convertible Preferred Stock had no expiration date.
The shares are held directly by Adams Street 2013 Direct Fund LP ("AS 2013").
The shares are held directly by Adams Street 2014 Direct Fund LP ("AS 2014").
The shares are held directly by Adams Street 2015 Direct Venture/Growth Fund LP ("AS 2015").
The shares are held directly by Adams Street 2016 Direct Venture/Growth Fund LP ("AS 2016").
The shares are held directly by Adams Street Venture/Growth Fund VI LP ("ASVG VI").
Adams Street Partners, LLC is the managing member of the general partner of each of AS 2008, AS 2009, and AS 2010, and the managing member of the general partner of the general partner of AS 2011 (along with AS 2008, AS 2009 and AS 2010, as defined in footnote 10), AS 2012, AS 2013, AS 2014, AS 2015, AS 2016 and ASVG VI. Thomas S. Bremner, Jeffrey T. Diehl, Elisha P. Gould III, Robin P. Murray, Fred Wang and Michael R. Zappert, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting and investment power over the reported shares. Adams Street Partners, LLC and Thomas S. Bremner, Jeffrey T. Diehl, Elisha P. Gould III, Robin P. Murray, Fred Wang and Michael R. Zappert disclaim beneficial ownership of the shares held by each of the aforementioned funds except to the extent of their pecuniary interest therein.
On June 25, 2018, AS 2012, AS 2013, AS 2014, AS 2015, AS 2016, and ASVG VI purchased 22,877, 17,305, 23,538, 18,068, 15,741, and 52,471 shares of common stock of the Issuer at a price of $16.00 per share, respectively, pursuant to an underwritten public offering.
Represents 249,791 shares of Common Stock held by Adams Street 2008 Direct Fund, L.P. ("AS 2008"), 216,053 shares of Common Stock held by Adams Street 2009 Direct Fund, L.P. ("AS 2009"), 122,728 shares of Common Stock held by Adams Street 2010 Direct Fund, L.P. ("AS 2010"), and 106,754 shares of Common Stock held by Adams Street 2011 Direct Fund LP ("AS 2011").