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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001012975-19-000199
Filing Date
2019-02-26
Accepted
2019-02-26 21:08:47
Documents
2
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 14750
2 attach_3.htm EX-24 2773
  Complete submission text file 0001012975-19-000199.txt   21330
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.: 19635557

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.: 19635558

Mailing Address 8755 W. HIGGINS ROAD SUITE 1025 CHICAGO IL 60631
Business Address
GILLIS STEVEN (Reporting) CIK: 0001229592 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-38155 | Film No.: 19635559

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

Mailing Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631
Business Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631 773-380-6600
ARCH Venture Fund X Overage, L.P. (Reporting) CIK: 0001757017 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-38155 | Film No.: 19635555

Mailing Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631
Business Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631 773-380-6600
ARCH Venture Partners X Overage, L.P. (Reporting) CIK: 0001768905 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-38155 | Film No.: 19635556

Mailing Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631
Business Address 8755 W. HIGGINS ROAD, SUITE 1025 CHICAGO IL 60631 773-380-6600
ARCH Venture Partners X, LLC (Reporting) CIK: 0001769012 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-38155 | Film No.: 19635554