Zenas BioPharma, Inc.
ZBIONasdaqHealthcare · Pharmaceutical Preparations · DE · SEC filings ↗ · Compare ⊕
View price & chart on Yahoo Finance ↗Financials
SEC XBRL · annual| FY25 | FY24 | FY23 | |
|---|---|---|---|
| Revenue | $10.0M | $5.0M | $50.0M |
| Operating income | −$383.1M | −$163.9M | −$37.1M |
| Net income | −$377.7M | −$157.0M | −$37.1M |
| Total assets | $383.6M | $370.0M | $68.2M |
| Total liabilities | $141.5M | $57.5M | $43.8M |
| Equity | $242.1M | $312.5M | −$225.7M |
| EPS (diluted) | $-8.44 | $-11.89 | $-24.25 |
| Shares out. | 41.8M | 41.8M | 1.6M |
Reported figures from the company's SEC filings (XBRL). Blank where a line item isn't cleanly tagged — never estimated.
Key ratios
from filings · FY2025- Operating margin
- −3830.6%
- Net margin
- −3777.4%
- Return on equity
- −156.0%
- Return on assets
- −98.5%
- Return on capital (ROCE)
- −119.3%
- Liabilities / assets
- 36.9%
- Debt / equity
- 0.58×
- Book value / share
- $5.79
- Revenue growth (YoY)
- 100.0%
- Net income growth (YoY)
- —
Computed from the company's own SEC figures — no market price, so these are facts, not a valuation. Book value per share is reported equity ÷ shares; it is not the stock price.
Financial health
forensic scores · FY2025- Altman Z″ (distress)
- -6.48distress
- Accruals / assets
- −53.5%clean
- Piotroski F-Score
- 2/9weak
Altman Z″is a textbook bankruptcy-distress score from book values only (>2.6 safe · 1.1–2.6 grey · <1.1 distress). Accruals = (net income − operating cash flow) ÷ assets; persistently high accruals are an earnings-quality red flag. Beneish M-Scoreis an eight-ratio screen comparing this year with last (M > −1.78 = elevated manipulation-risk screen, not proof). Piotroski F-Scorecounts how many of nine fundamental-health checks pass (shown as passed / applicable; we use operating margin and total liabilities as documented proxies where the exact input isn't XBRL-tagged). Computed from SEC filings — descriptive factors, not advice or a forecast.
Quality score
EDS ScoreOur own multi-factor score from free SEC data — profitability, growth, financial strength, earnings quality, and event/ownership catalysts. No market price and no licensed model: each axis is the share of source-backed checks it passes. Descriptive factors, not advice or a forecast.
Signs
● 1 severe● 3 warning● 3 good- Altman Z″ in the distress zone
- Operating losses (negative operating margin)
- Reported a net loss
- Negative operating cash flow
- Revenue is growing year-over-year
- Conservative leverage (liabilities < 50% of assets)
- Clean earnings (low accruals)
Derived from the company's own SEC figures (fundamentals, forensic scores, filing discipline) — descriptive factors, not advice or a forecast.
Clinical trials
ClinicalTrials.gov · ongoing · next readout first- Phase 1Recruitingreadout ~2025-07A Study to Evaluate Safety and Pharmacokinetics of ZB002 in Healthy Participants and Participants With Rheumatoid Arthritis
- Phase 2Active Not Recruitingreadout ~2025-08-28A Study of Obexelimab in Patients With Relapsing Multiple Sclerosis (MoonStone)
- Phase 3Active Not Recruitingreadout ~2025-11-13A Phase 3 Study of Obexelimab in Patients With IgG4-Related Disease
- Phase 2Recruitingreadout ~2026-06A Study of Obexelimab in Patients With Systemic Lupus Erythematosus
- Phase 3Active Not Recruitingreadout ~2026-06-30A Study of Obexelimab in Patients With Warm Autoimmune Hemolytic Anemia (SApHiAre)
- Phase 3Recruitingreadout ~2030-06A Study of Orelabrutinib in Patients With Secondary Progressive Multiple Sclerosis
- Phase 3Recruitingreadout ~2030-06A Study of Orelabrutinib in Patients With Primary Progressive Multiple Sclerosis
Interventional studies led by this company. “Readout” is the trial's primary-completion date — an estimate the sponsor reports, not a guarantee.
5%+ owners
SEC Schedule 13D / 13G · last 3 yrs- Moulder Leon O JrActivist (13D)May 5, 2026
- Fmr LlcPassive (13G)Feb 5, 2026
- Novo Holdings A/SPassive (13G)Nov 14, 2025
- Innocare Pharma Inc.Passive (13G)Oct 15, 2025
- Enavate Sciences Gp, LlcActivist (13D)Oct 14, 2025
- Sr One Capital Management, LlcActivist (13D)Oct 14, 2025
- Longitude Capital Partners Iv, LlcActivist (13D)Oct 14, 2025
Holders who disclosed a 5%+ stake. 13D signals intent to influence or control; 13G is a passive holding. Latest filing per holder — open it for the exact stake.
Short interest
FINRA · bi-monthly| Settlement | Shares short | Days to cover | Δ vs prior |
|---|---|---|---|
| May 15, 2026 | 10.7M | 21.3 | -1.5% |
| Apr 30, 2026 | 10.9M | 24.0 | +6.2% |
| Apr 15, 2026 | 10.2M | 12.4 | +9.2% |
| Mar 31, 2026 | 9.4M | 7.5 | +21.4% |
| Mar 13, 2026 | 7.7M | 22.3 | -3.9% |
Shares sold short as reported to FINRA. Days-to-cover = short shares ÷ average daily volume — higher means more potential squeeze pressure.
Material events
SEC Form 8-K · most recent- Results of operations · Director / officer change · Shareholder voteMay 13, 2026
- Entered a material agreement · New financial obligation · Other material eventMar 31, 2026
- Results of operationsMar 16, 2026
- Director / officer changeFeb 13, 2026
- Results of operations · Regulation FD disclosure · Other material eventJan 5, 2026
- Director / officer changeDec 15, 2025
- Results of operationsNov 12, 2025
- Regulation FD disclosure · Other material eventOct 27, 2025
Events the company reported on Form 8-K, labelled by the SEC item code it filed under — its own classification, not our interpretation.
Recent SEC filings
All filings ↗- 4OWNERSHIP DOCUMENTMay 18, 2026
- 10-QMay 13, 2026
- 8-KFORM 8-KMay 13, 2026
- SCHEDULE 13DMay 5, 2026
- 4OWNERSHIP DOCUMENTApr 29, 2026
- SCHEDULE 13D/AApr 2, 2026
- 4OWNERSHIP DOCUMENTApr 2, 2026
- 4OWNERSHIP DOCUMENTApr 1, 2026
- 4OWNERSHIP DOCUMENTMar 31, 2026
- 4OWNERSHIP DOCUMENTMar 31, 2026
- 8-KFORM 8-KMar 31, 2026
- 424B5Mar 30, 2026
- 424B5Mar 30, 2026
- FWPMar 27, 2026
- FWPMar 27, 2026
Event-driven situations (2)
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