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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001012975-15-000330
Filing Date
2015-05-12
Accepted
2015-05-12 16:32:40
Documents
1
Period of Report
2015-05-05

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT edgar.html 4  
1 PRIMARY DOCUMENT edgar.xml 4 19011
  Complete submission text file 0001012975-15-000330.txt   22797
Mailing Address 40 LANDSDOWNE STREET CAMBRIDGE MA 02139
Business Address
LEVIN MARK J (Reporting) CIK: 0001180428 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-37359 | Film No.: 15854838

Mailing Address 40 LANDSDOWNE STREET CAMBRIDGE MA 02139
Business Address
TEPPER ROBERT I (Reporting) CIK: 0001192595 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-37359 | Film No.: 15854836

Mailing Address 75 SIDNEY STREET CAMBRIDGE MA 02139
Business Address
STARR KEVIN P (Reporting) CIK: 0001192603 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-37359 | Film No.: 15854837

Mailing Address 29 NEWBURY STREET 3RD FLOOR BOSTON MA 02116
Business Address 29 NEWBURY STREET 3RD FLOOR BOSTON MA 02116 617-585-2000
Third Rock Ventures II, L.P. (Reporting) CIK: 0001488495 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-37359 | Film No.: 15854841

Mailing Address 215 FIRST STREET CAMBRIDGE MA 02142
Business Address 215 FIRST STREET CAMBRIDGE MA 02142 617-374-7580
Blueprint Medicines Corp (Issuer) CIK: 0001597264 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations

Mailing Address THIRD ROCK VENTURES 29 NEWBURY STREET, 3RD FLOOR BOSTON MA 02116
Business Address THIRD ROCK VENTURES 29 NEWBURY STREET, 3RD FLOOR BOSTON MA 02116 617-585-2000
Third Rock Ventures GP II, L.P. (Reporting) CIK: 0001614061 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-37359 | Film No.: 15854840

Mailing Address THIRD ROCK VENTURES 29 NEWBURY STREET, 3RD FLOOR BOSTON MA 02116
Business Address THIRD ROCK VENTURES 29 NEWBURY STREET, 3RD FLOOR BOSTON MA 02116 617-585-2000
TRV GP II, LLC (Reporting) CIK: 0001614073 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-37359 | Film No.: 15854839