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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001193805-17-003261
Filing Date
2017-10-10
Accepted
2017-10-10 09:40:07
Documents
2
Period of Report
2017-10-10

Document Format Files

Seq Description Document Type Size
1 OWNERSHIP DOCUMENT e617371_4-rhythm.html 4  
1 OWNERSHIP DOCUMENT e617371_4-rhythm.xml 4 20343
2 e617371_ex99.htm EX-99 7167
  Complete submission text file 0001193805-17-003261.txt   31938
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.: 001-38223 | Film No.: 171129015

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.: 001-38223 | Film No.: 171129016

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.: 001-38223 | Film No.: 171129017

Mailing Address 780 3RD AVENUE 37TH FLOOR NEW YORK NY 10017
Business Address 780 3RD AVENUE 37TH FLOOR NEW YORK NY 10017 212-551-1600
Deerfield Special Situations Fund, L.P. (Reporting) CIK: 0001354395 (see all company filings)

State of Incorp.: DE
Type: 4 | Act: 34 | File No.: 001-38223 | Film No.: 171129014

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.: 001-38223 | Film No.: 171129012

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.: 001-38223 | Film No.: 171129013

Mailing Address 500 BOYLSTON STREET 11TH FLOOR BOSTON MA 02116
Business Address 500 BOYLSTON STREET 11TH FLOOR BOSTON MA 02116 857-264-4280
RHYTHM PHARMACEUTICALS, INC. (Issuer) CIK: 0001649904 (see all company filings)

IRS No.: 462159271 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations