Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001104659-26-038546
Filing Date
2026-04-01
Accepted
2026-04-01 16:30:31
Documents
1
Period of Report
2026-03-31

Document Format Files

Seq Description Document Type Size
1 OWNERSHIP DOCUMENT tm2610877-1_4seq1.html 4  
1 OWNERSHIP DOCUMENT tm2610877-1_4seq1.xml 4 7643
  Complete submission text file 0001104659-26-038546.txt   10825
Mailing Address 200 BARR HARBOR DRIVE SUITE 400 WEST CONSHOHOCKEN PA 19428
Business Address
Harwin Peter Evan (Reporting) CIK: 0001663607 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-42270 | Film No.: 26828739

Mailing Address 200 BARR HARBOR DRIVE SUITE 400 WEST CONSHOHOCKEN PA 19428
Business Address 200 BARR HARBOR DRIVE SUITE 400 WEST CONSHOHOCKEN PA 19428 (267) 760-4066
Fairmount Healthcare Fund II L.P. (Reporting) CIK: 0001769651 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-42270 | Film No.: 26828741

Mailing Address 200 BARR HARBOR DRIVE SUITE 400 WEST CONSHOHOCKEN PA 19428
Business Address 200 BARR HARBOR DRIVE SUITE 400 WEST CONSHOHOCKEN PA 19428 267-262-5300
Fairmount Funds Management LLC (Reporting) CIK: 0001802528 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-42270 | Film No.: 26828742

Mailing Address 200 BARR HARBOR DRIVE SUITE 400 WEST CONSHOHOCKEN PA 19428
Business Address
Kiselak Tomas (Reporting) CIK: 0001830177 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-42270 | Film No.: 26828740

Mailing Address 852 WINTER STREET, SUITE 250 WALTHAM MA 02451
Business Address 852 WINTER STREET, SUITE 250 WALTHAM MA 02451 857-271-2954
Zenas BioPharma, Inc. (Issuer) CIK: 0001953926 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)