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Filing Details

Accession Number:: 0001144204-14-058131
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2014-09-26 17:32:25
Reporting Period:: 2014-09-24

Filing Date:: 2014-09-26
Accepted Time:: 2014-09-26 17:32:25
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1070336	Achillion Pharmaceuticals Inc	ACHN	Pharmaceutical Preparations (2834)	000000000

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1315082	Ra Capital Healthcare Fund Lp	20 Park Plaza, Suite 1200 Boston MA 02116	No	No	Yes	No
1346824	Ra Capital Management, Llc	20 Park Plaza, Suite 1200 Boston MA 02116	No	No	Yes	No
1384859	Peter Kolchinsky	20 Park Plaza, Suite 1200 Boston MA 02116	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, $0.001 Par Value	Disposition	2014-09-24	175,720	$11.24	10,229,209	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-09-24	319,100	$11.25	9,910,109	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-09-24	210,109	$11.29	9,700,000	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-09-24	500,000	$11.28	9,200,000	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-09-25	116,186	$11.01	9,083,814	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-09-25	131,800	$11.06	8,952,014	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-09-25	250,000	$11.06	8,702,014	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-09-26	300,000	$11.12	8,402,014	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-09-26	120,000	$10.96	8,282,014	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-09-26	250,000	$11.10	8,032,014	No	4	S	Indirect	See Footnotes

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

Footnotes

The securities sold include 144,090 shares for by RA Capital Healthcare Fund, L.P. (the "Fund") and 31,630 shares for an account owned by Blackwell Partners, LLC (the "Blackwell Account").
The securities sold include 261,662 shares for the Fund and 57,438 shares for an account owned by the Blackwell Account.
The securities sold include 172,289 shares for the Fund and 37,820 shares for an account owned by the Blackwell Account.
The securities sold include 410,000 shares for the Fund and 90,000 shares for an account owned by the Blackwell Account.
The securities sold include 95,272 shares for the Fund and 20,914 shares for an account owned by the Blackwell Account.
The securities sold include 108,075 shares for the Fund and 23,725 shares for an account owned by the Blackwell Account.
The securities sold include 205,000 shares for the Fund and 45,000 shares for an account owned by the Blackwell Account.
The securities sold include 246,000 shares for the Fund and 54,000 shares for an account owned by the Blackwell Account.
The securities sold include 98,400 shares for the Fund and 21,600 shares for an account owned by the Blackwell Account.
The securities sold include 204,999 shares for the Fund and 45,001 shares for an account owned by the Blackwell Account.
Following the transactions set forth on Table I above 5,908,814 shares are held by the Fund, and 2,123,200 shares are held in the Blackwell Account.
RA Capital Management, LLC (the "Adviser") is the general partner of the Fund and the investment adviser of the Blackwell Account. Peter Kolchinsky is the sole manager of the Adviser. In their respective capacities, each of Mr. Kolchinsky and the Adviser may be deemed to beneficially own the reported securities.
Pursuant to Rule 16a-1 under the Securities Exchange Act of 1934, as amended (the "Act"), each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of their respective pecuniary interests therein. The filing of this Form 4 shall not be construed as an admission that Mr. Kolchinsky or the Adviser is or was for the purposes of Section 16(a) of the Act, or otherwise, the beneficial owner of any of securities reported herein.