CIK 0001659617 · Non-accelerated filer<br>Smaller reporting company
Moleculin Biotech, Inc.
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- MBRX
- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 474671997
- Phone
- 713-300-5160
- Business address
- 5300 MEMORIAL DRIVE, SUITE 950, HOUSTON, TX, 77007
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Reading 32 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-11-04 | PICKER DONALD H Chief Science Officer | Option exercise | +17 | 8,722 | ||
| 2026-11-04 | PICKER DONALD H Chief Science Officer | Shares withheld for taxes | −4 | $8.46 | $34 | 8,718 |
| 2026-11-04 | PICKER DONALD H Chief Science Officer | Option exercise · Restricted Stock Units | −18 | 39,474 | ||
| 2026-11-04 | Foster Jonathan P. Chief Financial Officer | Option exercise | +41 | 20,301 | ||
| 2026-11-04 | Foster Jonathan P. Chief Financial Officer | Shares withheld for taxes | −10 | $8.46 | $85 | 20,291 |
| 2026-11-04 | Foster Jonathan P. Chief Financial Officer | Option exercise · Restricted Stock Units | −41 | 70,854 | ||
| 2026-11-04 | KLEMP WALTER V CEO and President | Option exercise | +57 | 36,217 | ||
| 2026-11-04 | KLEMP WALTER V CEO and President | Shares withheld for taxes | −14 | $8.46 | $118 | 36,203 |
| 2026-11-04 | KLEMP WALTER V CEO and President | Option exercise · Restricted Stock Units | −57 | 127,415 | ||
| 2026-10-15 | PICKER DONALD H Chief Science Officer | Grant or award · Stock Options (right to buy) | +250,000 | 789,595 | ||
| 2026-10-15 | KLEMP WALTER V CEO and President | Option exercise | +207,500 | 771,840 | ||
| 2026-10-15 | KLEMP WALTER V CEO and President | Shares withheld for taxes | −48,659 | $0.37 | $18K | 723,181 |
| 2026-10-15 | KLEMP WALTER V CEO and President | Grant or award · Options (right to buy) | +415,000 | 2,341,335 | ||
| 2026-10-15 | KLEMP WALTER V CEO and President | Grant or award · Restricted Stock Units | +415,000 | 2,756,335 | ||
| 2026-10-15 | KLEMP WALTER V CEO and President | Option exercise · Restricted Stock Units | −207,500 | 2,548,335 | ||
| 2026-10-15 | Foster Jonathan P. Chief Financial Officer | Option exercise | +130,000 | 435,673 | ||
| 2026-10-15 | Foster Jonathan P. Chief Financial Officer | Shares withheld for taxes | −30,485 | $0.37 | $11K | 405,188 |
| 2026-10-15 | Foster Jonathan P. Chief Financial Officer | Grant or award · Stock Options (right to buy) | +260,000 | 1,287,717 | ||
| 2026-10-15 | Foster Jonathan P. Chief Financial Officer | Grant or award · Restricted Stock Units | +260,000 | 1,547,717 | ||
| 2026-10-15 | Foster Jonathan P. Chief Financial Officer | Option exercise · Restricted Stock Units | −130,000 | 1,417,717 |
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