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Filing Details

Accession Number:: 0001144204-14-051421
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2014-08-19 17:05:29
Reporting Period:: 2014-08-15

Filing Date:: 2014-08-19
Accepted Time:: 2014-08-19 17:05:29
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	2014-08-15	680,722	$9.49	21,805,285	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-08-15	900,000	$9.34	20,905,285	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-08-15	660,300	$9.40	20,244,985	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-08-18	258,978	$9.57	19,986,007	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-08-18	635,000	$9.73	19,351,007	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-08-18	400,000	$9.70	18,951,007	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-08-18	415,000	$9.68	18,536,007	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-08-18	50,000	$9.75	18,486,007	No	4	S	Indirect	See Footnotes
Common Stock, $0.001 Par Value	Disposition	2014-08-18	235,000	$9.51	18,251,007	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

Footnotes

The securities sold include 462,666 shares for RA Capital Healthcare Fund, L.P. (the "Fund") and 218,056 shares for an account owned by Blackwell Partners, LLC (the "Blackwell Account").
The securities sold include 611,703 shares for the Fund and 288,297 shares for an account owned by the Blackwell Account.
The securities sold include 448,786 shares for the Fund and 211,514 shares for an account owned by the Blackwell Account.
The securities sold include 176,020 shares for the Fund and 82,958 shares for an account owned by the Blackwell Account.
The securities sold include 431,609 shares for the Fund and 203,391 shares for an account owned by the Blackwell Account.
The securities sold include 259,034 shares for the Fund and 140,966 shares for an account owned by the Blackwell Account.
The securities sold include 294,922 shares for the Fund and 120,078 shares for an account owned by the Blackwell Account.
The securities sold include 33,985 shares for the Fund and 16,015 shares for an account owned by the Blackwell Account.
The securities sold include 159,730 shares for the Fund and 75,270 shares for an account owned by the Blackwell Account.
Following the transactions set forth on Table I above, 14,511,860 shares are held by the Fund, and 3,739,147 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.