§ BIOTECHNOLOGY
USD · BiotechnologyZBIO
ZENAS BIOPHARMA INC
USDSector · Biotechnology
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
92 increased/new, 46 decreased/exited (13F)
AC 13F Analysis
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| Fidelity Management | 9.1M | 0.0% | +18% |
| SR One Capital Management, LP | 5.0M | 10.8% | ±0% |
| NEA Management Company, LLC | 4.0M | 4.5% | +14% |
| ENAVATE SCIENCES GP, LLC | 3.9M | 21.8% | ±0% |
| FEDERATED HERMES, INC. | 3.1M | 0.1% | +15% |
| Polar Capital Holdings Plc | 2.5M | 0.2% | +141% |
◇ AC INTELLIGENCE
Top institutional owners for ZBIO as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER62.3% · 93 holders
QUALITY / COMPOUNDER29.7% · 9 holders
DEALER / BANK6.0% · 18 holders
PASSIVE / INDEX5.7% · 7 holders
TACTICAL / MACRO2.4% · 3 holders
SYSTEMATIC / QUANT1.2% · 6 holders
INCOME / DEFENSIVE0.1% · 4 holders
GROWTH / MOMENTUM0.1% · 1 holder
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for ZBIO in the last 180 days.
§ 08 · COVERAGE · OUR RECENT NOTES
No notes mention ZBIO yet.