Dudediligence.

Zenas BioPharma, Inc

ZBIONASDAQ · Pharmaceutical Preparations
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Financing

SEC filings to 2026-10-05 · every row opens its filing

Shares on issue

63.3M

on 2026-06-30, from 41.8M on 2024-09-30 10-Q ↗

a raise that quarter, at its price

Newest

No limit

S-3ASR of 2025-10-08. An automatic shelf: the form sets no dollar limit. 1 prospectus supplement filed under it since. S-3ASR ↗

$200.0M

Jefferies, agreement of 2025-10-08. No at-the-market sales statement read from a 10-Q or 10-K. S-3ASR ↗

Warrants

The 10-Q filed 2026-08-13 is not read yet.

Cash

11.4 quarters

$643.1M on 2026-06-30 ÷ $56.5M a quarter of operating cash used, the average of four quarters. 10-Q ↗

Raised
DateWhatSharesPriceGrossFiling
2026-03-26Public offering5,000,000$20.00$100.0M424B5 ↗
2025-10-07Private placement6,261,893$19.00$120.0M8-K ↗

Also on file: $200.0M convertible notes, 2026-03-26 424B5 ↗ · $1K convertible notes, 2026-03-31 8-K ↗