MBRX
Moleculin Biotech IncNASDAQ
Healthcare • Biotechnology
$8.70-0.34%
Close Nov 6, 2026
- Market cap
- $8.87M
- 1 month
- +2.6%
- 3 months
- +1.1%
- 1 year
- -96.4%
- Dividend
- No dividends on record
- Next-quarter EPS estimate
- -$8.87Quarter to Sep 30, 2026 · 3 analysts · -1,900.2% in 30d
- Short interest
- 0.7% of float126.3K shares · settled Oct 15, 2026 · -38.3% since Sep 30, 2026 · FINRA
Fundamentals · trailing 12 months to Jun 30, 2026
- Revenue
- —
- Net income
- -$30.33M
- Free cash flow
- -$25.36M
- Book value
- $11.59M
- Total debt
- $292K
- P/E
- —
- Price / sales
- —
- Price / book
- 0.8×
- FCF yield
- -285.9%
- Net margin
- —
EODHD (TTM) · as of Nov 6, 2026
End-of-day close from stored market data, not a live quote.
About Moleculin Biotech Inc
Moleculin Biotech, Inc., a late-stage pharmaceutical development company, engages in the development of therapeutic candidates for the treatment of tumors and viruses. Its lead drug candidate is Annamycin, an anthracycline, which is in clinical stage for the treatment of relapsed or refractory acute myeloid leukemia and soft tissue sarcoma lung metastases.
Read more
The company is also developing WP1066 portfolio, including WP1066, WP1193, and WP1220, which are immune/transcription modulators designed to inhibit phosphorylated signal transducer and activator of transcription for brain tumors and pancreatic and other cancers. In addition, it is developing WP1122 portfolio, such as WP1122, WP1096, and WP1097 designed to exploit the uses of inhibitors of glycolysis comprising 2-deoxy-D-glucose that cut off the energy supply of tumors. The company was incorporated in 2015 and is headquartered in Houston, Texas.
- Website
- moleculin.com
- Headquarters
- Houston, TX, United States
- Employees
- 17
- Listed
- Jun 2, 2016
- Fiscal year ends
- December
Company profile from EODHD, stored Oct 28, 2026.
Quarterly results
The last 8 fiscal quarters as reported (EODHD). Year over year compares the same quarter a year earlier.
| Quarter | Revenue | YoY | Gross margin | Op. income | Net income |
|---|---|---|---|---|---|
| Jun 2026filed Aug 13, 2026 | — | — | — | -$7.6M | -$7.6M |
| Mar 2026filed May 14, 2026 | — | — | — | -$7.9M | -$12.8M |
| Dec 2025filed Mar 18, 2026 | — | — | — | -$7.5M | $15.6M |
| Sep 2025filed Nov 13, 2025 | — | — | — | -$5.9M | -$25.4M |
| Jun 2025filed Aug 12, 2025 | — | — | — | -$5.7M | -$7.6M |
| Mar 2025filed May 13, 2025 | $63.0K | -84.5% | — | -$5.9M | -$6.4M |
| Dec 2024filed Mar 21, 2025 | $126.0K | -69.0% | — | -$6.6M | -$1.9M |
| Sep 2024filed Nov 8, 2024 | — | — | — | -$7.1M | -$10.6M |
Fiscal years · last 6
| Fiscal year | Revenue | YoY | Gross margin | Op. income | Net income |
|---|---|---|---|---|---|
| Dec 2025filed Mar 18, 2026 | — | — | — | -$25.1M | -$33.6M |
| Dec 2024filed Mar 21, 2025 | — | — | — | -$26.6M | -$21.8M |
| Dec 2023filed Mar 22, 2024 | — | — | — | -$29.6M | -$29.8M |
| Dec 2022filed Mar 22, 2023 | — | — | — | -$30.6M | -$29.0M |
| Dec 2021filed Mar 24, 2022 | — | — | — | -$23.0M | -$15.9M |
| Dec 2020filed Mar 24, 2021 | — | — | — | -$19.7M | -$17.4M |
Short-interest history
FINRA reports open short positions for a settlement date. The publication date is later. These are reported positions, with a separate date for each observation.
Compare the reported short exposure around the dates you bought, sold or watched MBRX. A long position benefits from price rises; a short position benefits from falls. A change in these counts does not predict either move.
Settlement Oct 15, 2026
126,324 shares short
-78,259 shares (-38.3%) vs Sep 30, 2026
0.7% of the stored float. Published Oct 26, 2026.
Settlement Sep 30, 2026
204,583 shares short
-83,025 shares (-28.9%) vs Sep 15, 2026
1.2% of the stored float. Published Oct 9, 2026.
Settlement Sep 15, 2026
287,608 shares short
+109,482 shares (+61.5%) vs Aug 31, 2026
5.4% of the stored float. Published Sep 24, 2026.
Settlement Aug 31, 2026
178,126 shares short
-138,266 shares (-43.7%) vs Aug 14, 2026
Share of float unavailable. Published Sep 10, 2026.
Settlement Aug 14, 2026
316,392 shares short
-1,260,973 shares (-79.9%) vs Jul 31, 2026
Share of float unavailable. Published Aug 25, 2026.
Settlement Jul 31, 2026
1,577,365 shares short
+522,745 shares (+49.6%) vs Jul 15, 2026
Share of float unavailable. Published Aug 11, 2026.
Change = this settlement’s shares short − the previous recorded settlement’s shares short; percentage change divides by that earlier count. A zero earlier count has no percentage change. Split-spanning counts are left uncompared. Float percentages use the stored settlement observation, not today’s float.
Source: stored FINRA equity short-interest records, up to six settlements from the last 240 days. FINRA data and reporting dates · How to read short interest
Dividends and stock splits
See the recorded cash amounts and dates behind MBRX’s income, and the splits that change its share count. Dates below are stored event records, not confirmation of a payment to your account.
Cash-dividend records
No qualified cash-dividend records are stored. This does not establish that the company pays no dividend.
Up to six Polygon cash-dividend events, including recorded ex-dates within the next 120 days. Amounts retain their recorded currency and decimal precision. Historical amounts are not restated to a common split basis, annualized, or converted to dollars.
For a long holding, compare the ex-date with when you held the shares and check the pay date against your broker’s cash history. Owning the stock today does not establish past entitlement. For a short holding, a dividend can create a payment obligation to the share lender.
Ex-dates and special dividend rules · Short-sale dividend obligations · Dividend data definitions
Split history
1 for 20 · reverse split
Effective Oct 20, 2026
Each 20 pre-split shares become 1 post-split share.
Source: EODHD
1 for 25 · reverse split
Effective Dec 1, 2025
Each 25 pre-split shares become 1 post-split share.
Source: EODHD
1 for 15 · reverse split
Effective Mar 22, 2024
Each 15 pre-split shares become 1 post-split share.
Source: EODHD
1 for 6 · reverse split
Effective Feb 1, 2021
Each 6 pre-split shares become 1 post-split share.
Source: EODHD
Up to six stored split dates through Nov 7, 2026. Equivalent vendor ratios are combined; conflicting ratios are left out. This history may be incomplete.
A split changes the share count and per-share price basis; it does not by itself add investment value. Put your holding’s earlier and later share counts on the same basis before comparing them. This applies to both long shares and shares owed on a short position.
How stock splits workPortfolio context
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Smart money context
Holder IQ: MEDIUM
1 smart-money holders: institutions with a high Holder IQ
Q2 2026, filed Aug 14, 2026
Insider context
Sentiment: unknown
No recent insider trades detected.
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What it means for you
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What happened
No directional recent-activity label is available. This context label is separate from the scored insider signal read.
Why it can matter
A count of reported activity describes a sample, not purchase conviction, an insider’s intent or a future price move. Neutral is not an all-clear, and absent direction is not neutral evidence.
How we got this
The current context rule reads at most 50 nonduplicate issuer/share-class records filed in the last 90 days. It counts a bullish direction or purchase code P toward bullish, and a bearish direction or sale code S toward bearish. A side must exceed the opposite count by more than two to set its label; otherwise nonzero directional counts produce neutral. Calculation unavailable for this saved label: its counts, exact records, as-of time and rule version are not supplied here. Do not substitute the separate scored read’s different window or denominator.
Where the data comes from
Stored SEC Forms 3/4/5 insider-signal records, ordered by filing date with amendment duplicates excluded. Filing date is not transaction date. The last-trade line locates recent reported activity; it does not date or reconstruct the complete count.
Red flags: 3
Read the insider context evidence
What it means for you
Sign in to read your holdings or watchlist context. No personal position or direction is inferred.
What happened
No directional recent-activity label is available. This context label is separate from the scored insider signal read.
Why it can matter
A count of reported activity describes a sample, not purchase conviction, an insider’s intent or a future price move. Neutral is not an all-clear, and absent direction is not neutral evidence.
How we got this
The current context rule reads at most 50 nonduplicate issuer/share-class records filed in the last 90 days. It counts a bullish direction or purchase code P toward bullish, and a bearish direction or sale code S toward bearish. A side must exceed the opposite count by more than two to set its label; otherwise nonzero directional counts produce neutral. Calculation unavailable for this saved label: its counts, exact records, as-of time and rule version are not supplied here. Do not substitute the separate scored read’s different window or denominator.
Where the data comes from
Stored SEC Forms 3/4/5 insider-signal records, ordered by filing date with amendment duplicates excluded. Filing date is not transaction date. The last-trade line locates recent reported activity; it does not date or reconstruct the complete count.
Largest 13-F holders · Q2 2026
18 filers reported a long position in MBRX for Q2 2026. 13-F holdings are filed up to 45 days after the quarter ends.
The top 10 hold
99.4%
of the 185.8K shares 13-F filers reported
Moves vs Q1 2026
6 added0 trimmed
3 new · 1 unchanged
Net shares held
+168.2%
across the 7 holders with a comparable Q1 2026 book
| Rank | Holder | Value | Shares | Shares vs Q1 2026 |
|---|---|---|---|---|
| 1 | GEODE CAPITAL MANAGEMENT, LLC | $131.8K · 47.3K shares | 47.3K | +46.2% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $117.8K · 42.2K shares | 42.2K | +204.4% |
| 3 | VANGUARD FIDUCIARY TRUST CO | $83.4K · 29.9K shares | 29.9K | +392.1% |
| 4 | XTX Topco Ltd | $64K · 22.9K shares | 22.9K | New |
| 5 | MORGAN STANLEY | $55.9K · 20K shares | 20K | +55,555.6% |
| 6 | Rockefeller Capital Management L.P. | $41.9K · 15K shares | 15K | +239.3% |
| 7 | Tower Research Capital LLC (TRC) | $9.8K · 3.5K shares | 3.5K | +91.5% |
| 8 | CITIGROUP INC | $7.5K · 2.7K shares | 2.7K | New |
| 9 | BARCLAYS PLC | $1.7K · 621 shares | 621 | New |
| 10 | BlackRock, Inc. | $1.4K · 491 shares | 491 | Unchanged |
Sign in to see each holder’s Holder IQ, factor-adjusted Holder IQ and rank, and compare these holders with all scored filers. Available on every plan.
Sign in5% holder filings (13D / 13G)
Holders of more than 5% of MBRX file with the SEC within days. A 13D holder may seek to influence the company; a 13G holder is passive. Each holder’s latest filing from the last three years.
| Filed | Holder | % of class |
|---|---|---|
| Aug 25, 2026 | Foster Jonathan P.13D · activist | 6.3% |
| Aug 25, 2026 | KLEMP WALTER V13D · activist | 9.9% |
| Aug 10, 2026 | CVI Investments Inc13G · passive | 9.9% |
| Aug 6, 2026 | INTRACOASTAL CAPITAL LLC13G · passive | 4.99%under 5% |
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