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ZBIO NASDAQ

Zenas BioPharma, Inc.
1W: +5.0% 1M: -1.1% 3M: -23.3% YTD: -42.5% 1Y: +72.8%
$18.97
-0.87 (-4.39%)
 
Weekly Expected Move ±11.6%
$14 $16 $18 $20 $23
NASDAQ · Healthcare · Biotechnology · Alpha Radar Neutral · Power 49 · $846.9M mcap · 10M float · 6.72% daily turnover · Short 54% of daily vol

🏦 Institutional Activity

Latest: Q1 2026
170
Institutions Holding
+36 vs prior
106.1%
Ownership
-69.97%
44 New
49 Increased
56 Reduced
43 Closed

👔 Insider Trades

25 records
Date Name Title Type Shares Price Value Filing
2026-05-18 MOULDER LEON O JR officer: chief executive officer P-Purchase 60,000 $16.88 $1.0M Filing
2026-04-29 MOULDER LEON O JR officer: chief executive officer P-Purchase 35,000 $17.62 $617K Filing
2026-04-28 MOULDER LEON O JR officer: chief executive officer P-Purchase 25,000 $18.02 $450K Filing
2026-03-31 MOULDER LEON O JR officer: chief executive officer P-Purchase 34,000 $19.31 $657K Filing
2026-03-31 Lu Hongbo director P-Purchase 75,000 $20.00 $1.5M Filing
2026-03-30 MOULDER LEON O JR officer: chief executive officer P-Purchase 20,000 $18.23 $365K Filing
2026-02-13 Allen Patricia L director P-Purchase 4,160 $26.36 $110K Filing
2026-02-12 Allen Patricia L director P-Purchase 5,000 $26.50 $132K Filing
2026-02-12 Allen Patricia L director P-Purchase 5,700 $24.34 $139K Filing
2026-02-11 Lu Hongbo director P-Purchase 25,985 $22.50 $585K Filing
2026-02-02 MOULDER LEON O JR officer: chief executive officer P-Purchase 57,000 $17.96 $1.0M Filing
2026-01-09 MOULDER LEON O JR officer: chief executive officer P-Purchase 20,000 $16.55 $331K Filing
2026-01-08 MOULDER LEON O JR officer: chief executive officer P-Purchase 30,000 $16.30 $489K Filing
2026-01-07 MOULDER LEON O JR officer: chief executive officer P-Purchase 50,000 $16.38 $819K Filing
2025-10-09 George Simeon 10% owner P-Purchase 63,157 $19.00 $1.2M Filing
2025-10-09 Nunn Jason Raleigh director P-Purchase 63,158 $19.00 $1.2M Filing
2025-10-09 SR ONE CAPITAL MANAGEMENT, LLC 10% owner P-Purchase 63,157 $19.00 $1.2M Filing
2025-10-09 George Simeon 10% owner P-Purchase 63,158 $19.00 $1.2M Filing
2025-10-09 SR ONE CAPITAL MANAGEMENT, LLC 10% owner P-Purchase 63,158 $19.00 $1.2M Filing
2025-10-09 ENRIGHT PATRICK G director P-Purchase 11,990 $20.85 $250K Filing
2025-10-09 ENRIGHT PATRICK G director P-Purchase 105,265 $19.00 $2.0M Filing
2025-10-07 Lu Hongbo director P-Purchase 263,160 $19.00 $5.0M Filing
2025-10-07 Fairmount Funds Management LLC director P-Purchase 316,219 $19.00 $6.0M Filing
2025-10-07 Kiselak Tomas director P-Purchase 316,219 $19.00 $6.0M Filing
2025-10-07 Fairmount Healthcare Fund II L.P. director P-Purchase 316,219 $19.00 $6.0M Filing

🏛️ Congressional Trades

0 records
Date Politician Chamber Type Amount Filing
No congressional trades found

🏦 Top Institutional Holders

20 holders
Holder Shares Value Date Reported Filing
FMR LLC 9,082,000 $178M +1,377,745 2026-03-31 Filing
SR One Capital Management, LP 5,037,854 $98M 2026-03-31 Filing
NEA Management Company, LLC 4,023,219 $79M +500,000 2026-03-31 Filing
ENAVATE SCIENCES GP, LLC 3,919,159 $77M 2026-03-31 Filing
Polar Capital Holdings Plc 2,548,444 $50M +1,490,835 2026-03-31 Filing
Capital International Investors 2,434,000 $48M +2,434,000 2026-03-31 Filing
Fairmount Funds Management LLC 2,359,025 $46M +150,000 2026-03-31 Filing
BlackRock, Inc. 2,037,548 $40M +270,030 2026-03-31 Filing
STATE STREET CORP 1,470,923 $29M +1,032,629 2026-03-31 Filing
WELLINGTON MANAGEMENT GROUP LLP 1,246,053 $24M +390,719 2026-03-31 Filing
VANGUARD CAPITAL MANAGEMENT LLC 1,245,391 $24M +1,245,391 2026-03-31 Filing
SILVERARC CAPITAL MANAGEMENT, LLC 1,135,935 $22M +1,135,935 2026-03-31 Filing
EcoR1 Capital, LLC 789,500 $15M 2026-03-31 Filing
Balyasny Asset Management L.P. 667,070 $13M +473,917 2026-03-31 Filing
GEODE CAPITAL MANAGEMENT, LLC 655,785 $13M +67,392 2026-03-31 Filing
Pivotal bioVenture Partners Investment A 591,991 $12M 2026-03-31 Filing
Woodline Partners LP 590,525 $12M +590,525 2026-03-31 Filing
Rock Springs Capital Management LP 502,077 $10M 2026-03-31 Filing
NEXTBio Capital Management LP 426,736 $8M +104,753 2026-03-31 Filing
BANK OF AMERICA CORP /DE 388,347 $8M +341,187 2026-03-31 Filing

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms