Zenas BioPharma, Inc. ZBIO

Set alert

28.46 USD +0.08 (+0.28%)

At closeNov 4, 2026, 4:01 PM EST

28.46 0.00 0.00%

After hours · Nov 4, 4:01 PM ET

28.01 Day range 29.80

13.50 52-week range 44.60

Held by insiders 19.75%

Held by institutions 102.58%

Float held by institutions 127.83%

Institutions 212

Top institutional holders
Holder	% held	Shares	Value	Reported
FMR, LLC	14.59%	9,506,701	270.56M	Jun 29, 2026
SR One Capital Management, LP	7.73%	5,037,854	143.38M	Jun 29, 2026
NEA Management Company, LLC	6.17%	4,023,219	114.50M	Jun 29, 2026
Enavate Sciences Gp, LLC	6.01%	3,919,159	111.54M	Jun 29, 2026
Federated Hermes, Inc.	4.78%	3,116,805	88.70M	Jun 29, 2026
Blackrock Inc.	4.12%	2,686,225	76.45M	Jun 29, 2026

Top mutual fund holders
Holder	% held	Shares	Value	Reported
VANGUARD SPECIALIZED FUNDS-Vanguard Health Care Fund	4.51%	2,937,055	83.59M	Jul 30, 2026
SmallCap World Fund Inc	4.37%	2,849,198	81.09M	Sep 29, 2026
Federated Hermes Equity Funds-Federated Hermes Kaufmann Fund	2.80%	1,822,567	51.87M	Jul 30, 2026
Federated Hermes Equity Funds-Federated Hermes Kaufmann Small Cap Fund	1.92%	1,252,083	35.63M	Jul 30, 2026
Fidelity Select Portfolios-Select Health Care Portfolio	1.66%	1,080,000	30.74M	Aug 30, 2026
Fidelity Rutland Square TRT II-Strategic Advisers Fidelity U.S. Total	1.63%	1,064,191	30.29M	Aug 30, 2026

ZBIO insiders
Insider	Relation	Latest transaction	Date	Shares held
ALLEN PATRICIA L	Director	Purchase	Feb 12, 2026	19,860
ENRIGHT PATRICK G.	Director	Purchase	Oct 8, 2025	0
FAIRMOUNT FUNDS MANAGEMENT LLC	Unknown	Purchase	Mar 30, 2026	0
FARMER JOSEPH L	President	Stock Award(Grant)	Feb 4, 2026	974
FOX JENNIFER A	Chief Financial Officer	Stock Award(Grant)	Feb 4, 2026	1,592
LU HONGBO B	Director	Purchase	Mar 30, 2026	0

Held by funds