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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001012975-19-000198
Filing Date
2019-02-26
Accepted
2019-02-26 21:06:38
Documents
1
Period of Report
2019-02-22

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT edgar.html 4  
1 PRIMARY DOCUMENT edgar.xml 4 15856
  Complete submission text file 0001012975-19-000198.txt   20304
Mailing Address 8755 W. HIGGINS ROAD SUITE 1025 CHICAGO IL 60631
Business Address
CRANDELL KEITH (Reporting) CIK: 0001219039 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-38155 | Film No.: 19635548

Mailing Address 8755 W. HIGGINS ROAD SUITE 1025 CHICAGO IL 60631
Business Address
NELSEN ROBERT (Reporting) CIK: 0001219042 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-38155 | Film No.: 19635549

Mailing Address 8755 W. HIGGINS ROAD SUITE 1025 CHICAGO IL 60631
Business Address
BYBEE CLINTON (Reporting) CIK: 0001219043 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-38155 | Film No.: 19635547

Mailing Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631
Business Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631 776-380-6600
ARCH Venture Fund VIII, L.P. (Reporting) CIK: 0001605598 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-38155 | Film No.: 19635544

Mailing Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631
Business Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631 7733806600
ARCH Venture Partners VIII, LLC (Reporting) CIK: 0001616165 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-38155 | Film No.: 19635543

Mailing Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631
Business Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631 7733806600
ARCH Venture Partners VIII, L.P. (Reporting) CIK: 0001616176 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-38155 | Film No.: 19635546

Mailing Address C/O ARCH VENTURE PARTNERS VIII, LLC 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631
Business Address C/O ARCH VENTURE PARTNERS VIII, LLC 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631 773-380-6600
ARCH Venture Fund VIII Overage, L.P. (Reporting) CIK: 0001617237 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-38155 | Film No.: 19635545

Mailing Address 30699 RUSSELL RANCH ROAD, SUITE 140 WESTLAKE VILLAGE CA 91362
Business Address 30699 RUSSELL RANCH ROAD, SUITE 140 WESTLAKE VILLAGE CA 91362 (818) 629-2256
Sienna Biopharmaceuticals, Inc. (Issuer) CIK: 0001656328 (see all company filings)

IRS No.: 273364627 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations