Stocks
ZBIO Zenas BioPharma, Inc.

ZBIO

Zenas BioPharma, Inc.

Company with tickers: ZBIO

CIK

1953926

CUSIP

98937L105

Shares Outstanding

63,133,377

13F Activity (30d)

129 filings 126 filers

Date	Insider	Role	Type	Shares	Price	Value	After
2026-05-18	MOULDER LEON O JR	Director	Buy	60,000	$16.88	$1,012,800	96,928
2026-05-18	MOULDER LEON O JR	Director	Other	1,786,039	—	—	1,786,039
2026-05-18	MOULDER LEON O JR	Director	Other	423,155	—	—	423,155
2026-04-29	MOULDER LEON O JR	Director	Buy	35,000	$17.62	$616,700	1,786,039
2026-04-28	MOULDER LEON O JR	Director	Other	423,155	—	—	423,155
2026-04-28	MOULDER LEON O JR	Director	Other	36,928	—	—	36,928
2026-04-28	MOULDER LEON O JR	Director	Buy	25,000	$18.02	$450,500	1,751,039
2026-03-31	Lu Hongbo	Director	Buy	3,768	$18.63	$70,198	426,736
2026-03-31	Fairmount Funds Management LLC	Director	Buy	150,000	$20.00	$3,000,000	2,359,025
2026-03-31	MOULDER LEON O JR	Director	Buy	34,000	$19.31	$656,540	1,726,039
2026-03-31	Lu Hongbo	Director	Buy	75,000	$20.00	$1,500,000	422,968
2026-03-30	MOULDER LEON O JR	Director	Other	423,155	—	—	423,155
2026-03-30	MOULDER LEON O JR	Director	Buy	20,000	$18.23	$364,600	1,692,039
2026-03-30	MOULDER LEON O JR	Director	Other	36,928	—	—	36,928
2026-02-13	Allen Patricia L	Director	Buy	4,160	$26.36	$109,658	19,860
2026-02-12	Allen Patricia L	Director	Buy	5,000	$26.50	$132,500	15,700
2026-02-12	Allen Patricia L	Director	Buy	5,000	$23.77	$118,850	5,000
2026-02-12	Allen Patricia L	Director	Buy	5,700	$24.34	$138,738	10,700
2026-02-11	Lu Hongbo	Director	Buy	25,985	$22.50	$584,663	347,968
2026-02-02	MOULDER LEON O JR	Director	Other	1,672,039	—	—	1,672,039
2026-02-02	MOULDER LEON O JR	Director	Other	36,928	—	—	36,928
2026-02-02	MOULDER LEON O JR	Director	Buy	57,000	$17.96	$1,023,720	423,155
2026-01-09	MOULDER LEON O JR	Director	Buy	20,000	$16.55	$331,000	366,155
2026-01-08	MOULDER LEON O JR	Director	Buy	30,000	$16.30	$489,000	346,155
2026-01-07	MOULDER LEON O JR	Director	Other	36,928	—	—	36,928
2026-01-07	MOULDER LEON O JR	Director	Other	1,672,039	—	—	1,672,039
2026-01-07	MOULDER LEON O JR	Director	Buy	50,000	$16.38	$819,000	316,155
2025-10-09	ENRIGHT PATRICK G	Director	Other	774,530	—	—	774,530
2025-10-09	ENRIGHT PATRICK G	Director	Buy	11,990	$20.85	$249,992	11,990
2025-10-09	ENRIGHT PATRICK G	Director	Buy	105,265	$19.00	$2,000,035	1,832,669
2025-10-09	Nunn Jason Raleigh	Director	Buy	63,158	$19.00	$1,200,002	1,173,395
2025-10-09	Nunn Jason Raleigh	Director	Other	1,946,564	—	—	1,946,564
2025-10-09	SR ONE CAPITAL MANAGEMENT, LLC	10% Owner	Buy	63,158	$19.00	$1,200,002	1,173,395
2025-10-09	SR ONE CAPITAL MANAGEMENT, LLC	10% Owner	Other	1,946,564	—	—	1,946,564
2025-10-09	SR ONE CAPITAL MANAGEMENT, LLC	10% Owner	Buy	63,157	$19.00	$1,199,983	1,917,895
2025-10-07	MOULDER LEON O JR	Director	Other	1,672,039	—	—	1,672,039
2025-10-07	MOULDER LEON O JR	Director	Buy	36,928	$20.85	$769,949	36,928
2025-10-07	Fairmount Funds Management LLC	Director	Buy	316,219	$19.00	$6,008,161	2,209,025
2025-10-07	Lu Hongbo	Director	Buy	263,160	$19.00	$5,000,040	321,983
2025-10-07	MOULDER LEON O JR	Director	Other	266,155	—	—	266,155
2025-10-07	InnoCare Pharma Inc.	10% Owner	Other	5,000,000	—	—	5,000,000
2025-06-10	Oliveira Orlando	See Remarks	Award	100,000	—	—	100,000
2025-06-10	Boylan James P	Director	Award	18,500	—	—	18,500
2025-06-10	ORLOFF JOHN J	Director	Award	18,500	—	—	18,500
2025-06-10	Lu Hongbo	Director	Award	18,500	—	—	18,500
2025-06-10	Nunn Jason Raleigh	Director	Award	18,500	—	—	18,500
2025-06-10	Allen Patricia L	Director	Award	18,500	—	—	18,500
2025-06-10	Farmer Joseph L	See Remarks	Award	175,000	—	—	175,000
2025-06-10	MOULDER LEON O JR	Director	Award	400,000	—	—	400,000
2025-06-10	Fox Jennifer A.	Director	Award	150,000	—	—	150,000
2025-06-10	Fairmount Funds Management LLC	Director	Award	18,500	—	—	18,500
2025-06-10	ENRIGHT PATRICK G	Director	Award	18,500	—	—	18,500
2025-04-15	von Moltke Lisa	See Remarks	Award	400,000	—	—	400,000
2025-03-17	von Moltke Lisa	See Remarks	Other	0	—	—	0
2025-02-18	MOULDER LEON O JR	Director	Buy	25,000	$6.67	$166,750	266,155
2025-02-18	MOULDER LEON O JR	Director	Other	1,672,039	—	—	1,672,039
2025-02-07	Xiao Ting	Director	Buy	10,000	$7.76	$77,600	47,000
2024-12-16	Fox Jennifer A.	Director	Award	8,125	—	—	8,125
2024-12-16	Oliveira Orlando	See Remarks	Award	7,775	—	—	7,775
2024-12-04	MOULDER LEON O JR	Director	Buy	45,000	$9.98	$449,100	241,155
2024-12-03	MOULDER LEON O JR	Director	Buy	25,000	$10.76	$269,000	196,155
2024-12-03	MOULDER LEON O JR	Director	Other	1,672,039	—	—	1,672,039
2024-11-19	MOULDER LEON O JR	Director	Buy	2,500	$14.57	$36,425	171,155
2024-11-18	MOULDER LEON O JR	Director	Other	1,672,039	—	—	1,672,039
2024-11-18	MOULDER LEON O JR	Director	Buy	7,500	$15.00	$112,500	168,655
2024-09-20	MOULDER LEON O JR	Director	Buy	2,367	$17.88	$42,322	1,669,406
2024-09-20	MOULDER LEON O JR	Director	Buy	2,633	$18.97	$49,948	1,672,039
2024-09-19	MOULDER LEON O JR	Director	Buy	5,000	$17.89	$89,450	1,667,039
2024-09-18	MOULDER LEON O JR	Director	Buy	10,000	$17.91	$179,100	1,662,039
2024-09-18	MOULDER LEON O JR	Director	Other	161,155	—	—	161,155
2024-09-16	Wellington Biomedical Innovation Master Investors (Cayman) I L.P.	10% Owner	Other	200,718	—	—	801,624
2024-09-16	Wellington Biomedical Innovation Master Investors (Cayman) I L.P.	10% Owner	Other	420,271	—	—	600,906
2024-09-16	Wellington Biomedical Innovation Master Investors (Cayman) I L.P.	10% Owner	Other	180,635	—	—	180,635
2024-09-16	Wellington Biomedical Innovation Master Investors (Cayman) I L.P.	10% Owner	Other	1,742,858	—	—	0
2024-09-16	Wellington Biomedical Innovation Master Investors (Cayman) I L.P.	10% Owner	Other	3,649,263	—	—	0
2024-09-16	Wellington Biomedical Innovation Master Investors (Cayman) I L.P.	10% Owner	Other	1,568,480	—	—	0
2024-09-16	Enavate Sciences GP, LLC	10% Owner	Buy	882,353	$17.00	$15,000,001	3,761,359
2024-09-16	Enavate Sciences GP, LLC	10% Owner	Other	10,474,889	—	—	0
2024-09-16	Enavate Sciences GP, LLC	10% Owner	Other	2,879,006	—	—	2,879,006
2024-09-16	Enavate Sciences GP, LLC	10% Owner	Other	14,523,821	—	—	0
2024-09-16	ENRIGHT PATRICK G	Director	Buy	440,000	$17.00	$7,480,000	774,530
2024-09-16	ENRIGHT PATRICK G	Director	Other	1,003,592	—	—	1,727,404
2024-09-16	ENRIGHT PATRICK G	Director	Other	334,530	—	—	334,530
2024-09-16	ENRIGHT PATRICK G	Director	Other	6,284,933	—	—	0
2024-09-16	ENRIGHT PATRICK G	Director	Other	8,714,293	—	—	0
2024-09-16	ENRIGHT PATRICK G	Director	Other	723,812	—	—	723,812
2024-09-16	ENRIGHT PATRICK G	Director	Other	2,904,764	—	—	0
2024-09-16	Nunn Jason Raleigh	Director	Buy	441,176	$17.00	$7,499,992	1,946,564
2024-09-16	Nunn Jason Raleigh	Director	Other	1,505,388	—	—	1,505,388
2024-09-16	Nunn Jason Raleigh	Director	Buy	441,176	$17.00	$7,499,992	1,110,237
2024-09-16	Nunn Jason Raleigh	Director	Other	13,071,439	—	—	0
2024-09-16	Nunn Jason Raleigh	Director	Other	5,809,528	—	—	0
2024-09-16	Nunn Jason Raleigh	Director	Other	669,061	—	—	669,061
2024-09-16	Fairmount Funds Management LLC	Director	Other	709,794	—	—	1,003,814
2024-09-16	Fairmount Funds Management LLC	Director	Other	6,163,236	—	—	0
2024-09-16	Fairmount Funds Management LLC	Director	Buy	300,000	$17.00	$5,100,000	1,604,891
2024-09-16	Fairmount Funds Management LLC	Director	Other	252,890	—	—	294,020
2024-09-16	Fairmount Funds Management LLC	Director	Other	41,130	—	—	41,140
2024-09-16	Fairmount Funds Management LLC	Director	Other	301,077	—	—	1,304,891
2024-09-16	Fairmount Funds Management LLC	Director	Other	2,614,287	—	—	0