Invesaro

Stocks Health care ZBIO

NASDAQ · Health care

Zenas BioPharma, Inc. (ZBIO)

It posted a net loss of $541.8M. In fiscal 2025 capital spending exceeded operating cash flow by $172.4M. At September 30, 2026 it held $177.8M in cash. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on November 5, 2026.

Free, no password. An email when ZBIO files with the SEC.

Price
$28.57
+1.10% on the day · November 9, 2026
52-week range $13.50 to $44.60
Market cap
$1.9B

Key facts about Zenas BioPharma, Inc.

Net worth
Zenas BioPharma, Inc. has a market value (market cap) of $1.9B at the latest share price, and shareholders' equity of $212.3M on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
Revenue and profit
In fiscal 2025 revenue was $10M (+100.0% year on year), with a net loss of $377.7M.
Cash flow
In fiscal 2025 operations used $172.3M of cash.
Latest report
The latest periodic report (quarterly report, 10-Q) was filed with the SEC on November 5, 2026 and covers the period to September 30, 2026. Open on SEC EDGAR
Next earnings report
Zenas BioPharma, Inc.'s next report is expected around January 4, 2027. That is an estimate from its filing rhythm, not a date the company has announced.

What Zenas BioPharma, Inc. does

Zenas BioPharma, Inc. is registered with the SEC under industry code SIC 2834 (Pharmaceutical Preparations). Its shares trade on NASDAQ under the ticker ZBIO.

Revenue and profit by year

Revenue
FY24: $50M $50M FY24FY24: $5M $5M FY24FY25: $10M $10M FY25
Net income
FY24: -$37.1M -$37.1M FY24FY24: -$157M -$157M FY24FY25: -$377.7M -$377.7M FY25

Fiscal years as reported in annual reports. Amounts in USD.

Key figures

Fiscal yearRevenueOperating incomeNet incomeDiluted EPSFree cash flow
2025$10M-$383.1M-$377.7M-$8.44-$172.4M
2024$5M-$163.9M-$157M-$11.89-$119.8M
2024$50M-$37.1M-$37.1M-$24.25-$30.5M

Earnings: every quarter and the next report date

Full financial statements: income, balance sheet and cash flow

Next report expected around January 4, 2027.

Estimated from its filing rhythm: 52 weeks after its report of January 5, 2026. Not a date the company has announced. See the report calendar · Earnings, quarter by quarter

Where ZBIO ranks in Health care

Revenue$10M
#520 of 751 in Health care · Bottom 31%
Revenue growth+100.0%
#53 of 532 in Health care · Top 10%
Net margin-3,777.4%
#544 of 544 in Health care · Bottom 1%
Free cash flow margin-1,723.5%
#490 of 490 in Health care · Bottom 1%

Latest fiscal year of every company in the sector with the figure reported. Revenue is ranked among companies reporting in US dollars; growth and margins among companies with at least 10 million of revenue. Health care

Latest SEC filings

What Zenas BioPharma, Inc. has filed recently, newest first. Each links to the original document on SEC EDGAR.

  1. November 6, 2026
  2. November 5, 2026
  3. November 5, 2026
    Quarterly report 10-Q · period to September 30, 2026Revenue was $10M; diluted EPS -$1.65 versus -$1.22.
  4. November 5, 2026
  5. October 27, 2026
  6. October 13, 2026
  7. September 11, 2026
  8. September 11, 2026
  9. September 8, 2026
  10. September 8, 2026

Recent insider filings (Forms 3, 4 and 144): 10, the latest on September 8, 2026. Insider transactions on SEC

Insider trades

What the people running Zenas BioPharma, Inc. did with its shares, from the Form 4 filings they must send the SEC within two business days.

No insider trades were reported in the last 90 days.

Bought (open market)
$0
last 90 days
Sold
$0
last 90 days
DateInsiderWhatSharesPriceValueFiling
May 18, 2026 Moulder Leon O JrChief Executive Officer, Director Boughtindirect 60,000 $16.88 $1M Form 4
April 29, 2026 Moulder Leon O JrChief Executive Officer, Director Boughtindirect 35,000 $17.62 $616.7K Form 4
April 28, 2026 Moulder Leon O JrChief Executive Officer, Director Boughtindirect 25,000 $18.02 $450.5K Form 4
March 31, 2026 Lu HongboDirector Boughtindirect 3,768 $18.63 $70.2K Form 4
March 31, 2026 Fairmount Funds Management LLCDirector Boughtindirect 150,000 $20.00 $3M Form 4
March 31, 2026 Lu HongboDirector Boughtindirect 75,000 $20.00 $1.5M Form 4
March 31, 2026 Moulder Leon O JrChief Executive Officer, Director Boughtindirect 34,000 $19.31 $656.5K Form 4
March 30, 2026 Moulder Leon O JrChief Executive Officer, Director Boughtindirect 20,000 $18.23 $364.6K Form 4

All insider filings on SEC.gov · Where insiders are buying across the market

Who owns ZBIO

Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.

5% holders

Anyone who owns more than 5% of a class of shares must say so on Schedule 13D (if they may seek to influence the company) or 13G (a passive holder). The latest filing of each holder is shown: 13G filings of the last 2 years, 13D of the last 3.

HolderOf classSharesFiled
Fmr LLC13G, passive with 1 related filers 14.3% 7,652,255 February 5, 2026
InnoCare Pharma Inc.13G, passive with 2 related filers 10.4% 7,000,000 September 8, 2026
Wellington Management Group LLP13G, passive with 3 related filers 10.1% 6,566,134 September 8, 2026
SR One Capital Management, LLC13D, may seek influence with 7 related filers 7.7% 5,037,854 August 17, 2026
Moulder Leon O JR13D, may seek influence with 2 related filers 5.09% 3,220,880 May 5, 2026
BlackRock, Inc.13G, passive 5% 3,287,021 October 27, 2026

Latest filings below 5%: Xencor, Inc. 1.5% (November 5, 2026); Enavate Sciences GP, LLC 4.9% (August 19, 2026); Novo Holdings A/S 4.7% (November 14, 2025); Patrick G. Enright 4.9% (October 14, 2025).

Largest institutional holders

Positions that investment managers reported on Form 13F for the quarter ended June 30, 2026, largest first, with the change on the quarter ended March 31, 2026. Managers file 13F up to 45 days after a quarter ends. 145 managers reported a position.

HolderSharesValueChange on quarter
Fmr LLC9,506,701$241.3M+424,701
SR One Capital Management, LP5,037,854$127.9M0
NEA Management Company, LLC4,023,219$102.1M0
Enavate Sciences GP, LLC3,919,159$99.5M0
Federated Hermes, Inc.3,116,805$79.1M-10,226
BlackRock, Inc.2,686,225$68.2M+648,677
Capital International Investors2,502,912$63.5M+68,912
Polar Capital Holdings Plc2,412,772$61.2M-135,672
Royalty Pharma Sub-Manager, LLC2,388,150$60.6M0
Fairmount Funds Management LLC2,359,025$59.9M0
State Street Corp2,055,100$52.2M+584,177
Nvp Associates, LLC1,838,482$46.7M0
Wellington Management Group Llp1,593,819$40.5M+347,766
Vanguard Capital Management LLC1,354,864$34.4M+109,473
Bank of America Corp1,231,159$31.2M+842,812
Geode Capital Management, LLC882,654$22.4M+226,869
Alliancebernstein L.P.1,103,388$21.6M+206,067
Two Sigma Investments, LP815,150$20.7M+540,094
EcoR1 Capital, LLC789,500$20M0
Millennium Management LLC660,470$16.8M+183,652

Insiders

Reported holdings of insiders who filed a Form 4 in the last 12 months: the shares each one held after their latest reported transaction. This is not the total held by all insiders.

6 insiders reported holding 3,328,270 shares in total, about $95.1M at the last price.

HolderSharesAs of
Fairmount Funds Management LLCDirector 2,359,0252,359,025 held indirectly March 31, 2026
Moulder Leon O JrChief Executive Officer, Director 520,08396,928 held indirectly May 18, 2026
Lu HongboDirector 426,736426,736 held indirectly March 31, 2026
Allen Patricia LDirector 19,860 February 13, 2026
Fox Jennifer A.See Remarks 1,592 February 5, 2026
Farmer Joseph LSee Remarks 974 February 5, 2026

Schedule 13D/13G filings on SEC.gov

All filings on SEC EDGAR

Questions about ZBIO

What does Zenas BioPharma, Inc. do?

Zenas BioPharma, Inc. is a company in the Health care sector, listed on NASDAQ as ZBIO. Its shares trade on NASDAQ under the ticker ZBIO.

What is Zenas BioPharma, Inc.'s net worth?

Zenas BioPharma, Inc. has a market value (market cap) of $1.9B at the latest share price, and shareholders' equity of $212.3M on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.

Is Zenas BioPharma, Inc. profitable?

No. Over the twelve months to September 30, 2026 it reported a net loss of $541.8M.

When did Zenas BioPharma, Inc. last report?

Its most recent periodic report is the quarterly report (10-Q) filed on November 5, 2026. It covers the period to September 30, 2026. Its newest filing of any kind is the other event from November 6, 2026.

When is Zenas BioPharma, Inc.'s next earnings report?

Zenas BioPharma, Inc.'s next report is expected around January 4, 2027. That is an estimate from its filing rhythm, not a date the company has announced.

Similar companies

Compare ZBIO with

Compare ZBIO with any company

Follow ZBIO

Get an email when Zenas BioPharma, Inc. files with the SEC: results, executive changes, material agreements and annual reports.

Free, no password. An email when ZBIO files with the SEC.

Where the numbers come from

Financial figures are the values Zenas BioPharma, Inc. tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.

Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.