Zenas Biopharma Inc

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Zenas Biopharma Inc
TickerZBIO
CIK #0001953926
CUSIP98937L105
SectorLife Sciences - Pharmaceutical Preparations
Address1000 Winter St, Suite 1200, Waltham, MA 02451
Source [EDGAR]
CIK Filing 2011 - 2025
[0001953926] 10-K
[0001953926] 10-Q
[0001953926] 3
[0001953926] 4
[0001953926] 8-K
[0001953926] D
[0001953926] SC 13D
[0001953926] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Moulder Leon O Jr Zenas Biopharma Inc [2025-06-06] 0.0
Novo Holdings A/S Zenas Biopharma Inc [2025-04-01] 0.0
FMR LLC Zenas Biopharma Inc [2024-11-12] 0.0
Xencor Inc Zenas Biopharma Inc [2024-10-21] 7.4
NEA 18 Venture Growth Equity LP Zenas Biopharma Inc [2024-09-25] 6.6
Enavate Sciences GP LLC Zenas Biopharma Inc [2024-09-23] 0.0
Longitude Capital Partners IV LLC Zenas Biopharma Inc [2024-09-23] 11.0
SR One Capital Management LLC Zenas Biopharma Inc [2024-09-23] 819412.3
Form 3/4/5 Filer 2011 - 2025
Allen Patricia L
Zenas BioPharma, Inc.
Farmer Joseph L
Harwin Peter Evan
Fairmount Funds Management LLC
Kiselak Tomas
Fairmount Healthcare Fund II L.P.
Enright Patrick G
Orloff John J
Lu Hongbo
Moulder Leon O Jr
Fox Jennifer A.
Nunn Jason Raleigh
Oliveira Orlando
Boylan James P
von Moltke Lisa
Xiao Ting
Wellington Biomedical Innovation Master Investors (Cayman) I
Zebra Aggregator, LP
Enavate Sciences GP, LLC
SR One Capital Management LLC
George Simeon
Form 13F Holdings
Firm Period DFND Voting Shares
SR One Capital Management LP [2025-06-30] SOLE 4,911,539 4,911,539
Enavate Sciences GP, LLC [2025-06-30] SOLE 3,761,359 3,761,359
FMR LLC [2025-06-30] DFND 3,322,656 3,323,534
NEA Management Company LLC [2025-06-30] DFND 2,733,719 2,733,719
Novo Holdings A/S [2025-06-30] SOLE 2,250,000 2,250,000
Fairmount Funds Management LLC [2025-06-30] SOLE 1,892,806 1,892,806
Federated Hermes Inc [2025-06-30] DFND 1,861,838 1,861,838
NVP Associates, LLC [2025-06-30] SOLE 1,838,482 1,838,482
Deerfield Management Company LP [2025-06-30] DFND 1,562,942 1,562,942
Vivo Capital LLC [2025-06-30] SOLE 1,183,260 1,183,260
BlackRock, Inc. [2025-06-30] SOLE 1,065,720 1,095,609
ArrowMark Colorado Holdings LLC [2025-06-30] SOLE 1,094,338 1,094,338
Vanguard Group Inc [2025-06-30] SOLE 0 980,325
Wellington Management Group LLP [2025-06-30] DFND 0 878,918
Pivotal Bioventure Partners Investment Advisor LLC [2025-06-30] DFND 0 779,045
Rock Springs Capital Management LP [2025-06-30] SOLE 640,467 640,467
Price T Rowe Associates Inc /MD/ [2025-06-30] SOLE 432,709 447,849
Geode Capital Management LLC [2025-06-30] DFND 373,617 373,617
Eversept Partners LP [2025-06-30] SOLE 325,479 325,479
State Street Corp [2025-06-30] DFND 292,136 310,236
Citadel Advisors LLC [2025-06-30] DFND 293,785 293,785
Catalio Capital Management LP [2025-06-30] SOLE 215,314 215,314
Sectoral Asset Management Inc [2025-06-30] SOLE 0 210,625
Schroder Investment Management Group [2025-06-30] SOLE 154,916 154,916
Morgan Stanley [2025-06-30] DFND 90,961 124,301
Charles Schwab Investment Management Inc [2025-06-30] SOLE 122,210 122,210
Northern Trust Corp [2025-06-30] DFND 116,886 117,079
Superstring Capital Management LP [2025-06-30] SOLE 111,605 111,605
Bank of New York Mellon Corp [2025-06-30] DFND 33,724 38,433
Price T Rowe Associates Inc /MD/ [2025-06-30] DFND 37,353 37,353
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