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424B5 ·Filed Jul 31, 2026

NWBO

NORTHWEST BIOTHERAPEUTICS INC
BEARISH
Impact 6/10
Horizonweeks Processed2mo ago SEC0001104659-26-089290
Notable filing: 424B5
Actionable Insight ▼ Bearish

The Yorkville convertible note is a classic 'death spiral' structure — variable conversion at a discount to market — which will create persistent downward selling pressure as the holder converts and sells shares. Monitor daily volume and share price for conversion activity. The company's cash runway remains very limited ($4.655M net) for a pre-revenue biotech, making additional dilutive financings likely. Short interest of 70M shares suggests the market is already positioned for this outcome.

DirectionBearish
Confidencehigh
Horizonweeks
Latest settled — T+20d
NWBO ▲ +6.25% at T+20d
SHORT call ✗ call lost -6.25% · α vs SPY -5.01% · entry $0.1600 → $0.1700
Next anchor: T+60d due yesterday
Latest observation: T+58 -13.52% FF3 residual α
Entry = T+0 close
Jul 31, 2026
via day close
T+1d
+0.63%
call -0.63% · α +1.18%
$0.1610
settled 3mo ago
T+5d
+16.25%
call -16.25% · α -14.22%
$0.1860
settled 3mo ago
T+20d
+6.25%
call -6.25% · α -5.01%
$0.1700
settled 2mo ago
T+60d
Pending
due yesterday

Price Chart

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Executive Summary

Northwest Biotherapeutics filed a 424B5 prospectus supplement to register 40,325,000 shares of common stock, primarily related to a $4.9 million convertible promissory note financing with Yorkville Advisors (YA II PN, Ltd.) entered into on July 29, 2026. The offering is dilutive at a price of $0.16 per share (the market close on July 29), with net proceeds of approximately $4.655 million for general corporate purposes. This is the company's fifth offering/registration filing in the last 24 months, continuing a pattern of dilutive financing for a pre-revenue clinical-stage biotech with a negative tangible book value of $(90.7) million.

Key Facts

  • $4.9 million convertible promissory note financing with YA II PN, Ltd. (Yorkville Advisors) entered on July 29, 2026.
  • Registration of 30,625,000 reserve shares at $0.16/share for potential conversion of the Note, plus 9,700,000 warrant shares at $0.205/share.
  • Net proceeds estimated at $4,655,000 after OID and expenses.
  • Pro forma shares outstanding after offering: 1,733,922,187, up from 1,693,597,187 as of July 30, 2026.
  • Net tangible book value as of March 31, 2026 was $(90.7) million, or $(0.06) per share; after offering, $(84.1) million, or $(0.05) per share.
  • Note is 12-month term, 5% OID, no interest, convertible at a discount to market price — a toxic convertible structure.
  • This is the 5th offering/registration filing in 24 months, indicating persistent cash needs.

Financial Impact

Dilutive offering of up to 40,325,000 shares at $0.16/share, raising $4.655 million net. Existing shareholders face ~2.4% dilution from this tranche alone, with further dilution from the variable-rate convertible note structure.

dilutionshare countcashnet tangible book value

Risk Factors

  • Persistent dilution from the variable-rate convertible note conversion at a discount to market price.
  • Limited cash runway of ~$4.655M for a pre-revenue clinical-stage biotech with ongoing R&D and regulatory costs.
  • Pattern of repeated dilutive financings (5 in 24 months) suggests inability to secure non-dilutive capital.
  • Going concern risk highlighted in the auditor's report (incorporated by reference).
  • OTCQB listing with high short interest (70M shares) indicates weak institutional support.

Market Snapshot

Exchange
OTC
Sector
Pharmaceutical Preparations
Analyst Consensus
86% bullish (7 analysts)

Investment Themes

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

DocumentAccession Number
424B5 Filing (Primary)0001104659-26-089290
Document: 0001104659-26-089290-index-headers.html0001104659-26-089290
Document: 0001104659-26-089290-index.html0001104659-26-089290
Document: 0001104659-26-089290.txt0001104659-26-089290
2 reports for NWBO
Performance horizon
Filters
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Reports for NWBO — sortable, filterable
TypeNow
Jul 31, 2026
12w ago
424B5
BEARISH ★ 6/10
$0.1600 $0.1700▼ −6.25%▼ −5.01%$0.1650 (−3.13%)
Apr 21, 2026
27w ago
EFFECT
NEUTRAL ★ 3/10
$0.1900 $0.2500▲ +31.58%▲ +26.66%$0.1650 (−13.16%)
Showing 2 of 2

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Report published Jul 31, 2026