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Filing Details

Accession Number:: 0000315066-16-005850
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2016-05-18 16:54:02
Reporting Period:: 2016-05-17

Filing Date:: 2016-05-18
Accepted Time:: 2016-05-18 16:54:02
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1590877	Regenxbio Inc.	RGNX	()	DE

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
315066	Fmr Llc	245 Summer Street Boston MA 02210		No	No	No	Yes

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2016-05-17	18,300	$12.41	619,376	No	4	S	Indirect	See footnote
Common Stock	Disposition	2016-05-17	129,496	$0.00	489,880	No	4	J	Indirect	See footnote

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

Footnotes

By F-Prime Capital Partners Healthcare Fund III LP, Impresa Fund III Limited Partnership and F-Prime Inc. The general partner of F-Prime Capital Partners Healthcare Fund III LP is F-Prime Capital Partners Healthcare Advisors Fund III LP (FPCPHA). FPCPHA and Impresa Fund III Limited Partnership are each solely managed by Impresa Management LLC, their general partner and investment manager. Impresa Management LLC is owned, directly or indirectly, by various shareholders and employees of FMR LLC, including certain members of the Johnson family. F-Prime Inc. is a wholly-owned subsidiary of FMR LLC.
The price reported for this transaction is the weighted average price of multiple trades at prices ranging from $12.05 to $12.56. FMR LLC hereby undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
F-Prime Capital Partners Healthcare Fund III LP (FPCPHF) made a pro-rata distribution to its partners, without payment of consideration, of 365,731 shares of REGENXBIO Inc. previously reported by FMR LLC. FPCPHF distributed 235,924 shares to Impresa Fund III Limited Partnership, 2,757 shares to F-Prime Capital Partners Healthcare Advisors Fund III LP (FPCPHA) and 127,050 shares to a recipient whose shares are not subject to reporting by the undersigned (an Other Recipient). FPCPHA made a pro-rata distribution to its partners, without payment of consideration, of 311 shares to F-Prime Inc, a wholly-owned subsidiary of FMR LLC, and 2,446 shares to Other Recipients.