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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001193805-15-001622
Filing Date
2015-09-22
Accepted
2015-09-22 10:48:41
Documents
2
Period of Report
2015-09-22

Document Format Files

Seq Description Document Type Size
1 OWNERSHIP DOCUMENT e614131_4-regenxbio.html 4  
1 OWNERSHIP DOCUMENT e614131_4-regenxbio.xml 4 23061
2 OWNERSHIP DOCUMENT e614131_ex99.htm EX-99 24470
  Complete submission text file 0001193805-15-001622.txt   52586
Mailing Address 780 THIRD AVENUE, 37TH FLOOR NEW YORK NY 10017
Business Address 780 THIRD AVENUE 37TH FLOOR NEW YORK NY 10017 2125511600
DEERFIELD MANAGEMENT CO (Reporting) CIK: 0001009258 (see all company filings)

State of Incorp.: DE
Type: 4 | Act: 34 | File No.: 001-37553 | Film No.: 151118745

Mailing Address 780 THIRD AVENUE 37TH FLOOR NEW YORK NY 10017
Business Address 780 THIRD AVENUE 37TH FLOOR NEW YORK NY 10017 2125511600
Deerfield Mgmt L.P. (Reporting) CIK: 0001010823 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-37553 | Film No.: 151118746

Mailing Address 780 THIRD AVENUE 37TH FLOOR NEW YORK NY 10017
Business Address 780 THIRD AVENUE 37TH FLOOR NEW YORK NY 10017 212-551-1600
DEERFIELD PARTNERS, LP (Reporting) CIK: 0001301041 (see all company filings)

State of Incorp.: DE
Type: 4 | Act: 34 | File No.: 001-37553 | Film No.: 151118741

Mailing Address 780 THIRD AVENUE 37TH FLOOR NEW YORK NY 10017
Business Address
Flynn James E (Reporting) CIK: 0001352546 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-37553 | Film No.: 151118747

Mailing Address 780 THIRD AVENUE, 37TH FLOOR NEW YORK NY 10017
Business Address 780 THIRD AVENUE, 37TH FLOOR NEW YORK NY 10017 212-692-7108
Deerfield International Master Fund, L.P. (Reporting) CIK: 0001565089 (see all company filings)

Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-37553 | Film No.: 151118742

Mailing Address 9712 MEDICAL CENTER DRIVE SUITE 100 ROCKVILLE MD 20850
Business Address 9712 MEDICAL CENTER DRIVE SUITE 100 ROCKVILLE MD 20850 240-552-8181
REGENXBIO Inc. (Issuer) CIK: 0001590877 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2836 Biological Products, (No Diagnostic Substances)

Mailing Address 780 THIRD AVENUE, 37TH FLOOR NEW YORK NY 10017
Business Address 780 THIRD AVENUE, 37TH FLOOR NEW YORK NY 10017 212-551-1600
Deerfield Private Design Fund III, L.P. (Reporting) CIK: 0001603333 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-37553 | Film No.: 151118743

Mailing Address 780 THIRD AVENUE, 37TH FLOOR NEW YORK NY 10017
Business Address 780 THIRD AVENUE, 37TH FLOOR NEW YORK NY 10017 212-551-1600
Deerfield Mgmt III, L.P. (Reporting) CIK: 0001610540 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1214
Type: 4 | Act: 34 | File No.: 001-37553 | Film No.: 151118744