Moleculin Biotech, Inc.
MBRXHealthcare|Biotechnology|US
$8.70
-0.03 (-0.34%)
DCF Value
$90.32
Tangible Book / Share
$1.55
Cash / Share
$25.57
Ownership Breakdown
82.3%
Float
1.0M
Shares Outstanding
0.8M
Float Shares
Major Holders (10)
Combined: 61.1%
Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.
| Holder | Type | % of Class | Shares | Filed | Filing |
|---|---|---|---|---|---|
| Klemp Walter V | Individual | 9.90% | 2,070,761 | Aug 25, 2026 | 13D/G |
| Heights Capital Management, Inc. | Corporation | 9.90% | 1,863,377 | Aug 10, 2026 | 13D/G |
| CVI Investments, Inc. | Corporation | 9.90% | 1,863,377 | Aug 10, 2026 | 13D/G |
| Foster Jonathan P. | Individual | 6.30% | 1,288,207 | Aug 25, 2026 | 13D/G |
| Intracoastal Capital LLC | Other | 4.99% | 973,927 | Aug 6, 2026 | 13D/G |
| Mitchell P. Kopin | HC, IN | 4.99% | 973,927 | Aug 6, 2026 | 13D/G |
| Daniel B. Asher | HC, IN | 4.99% | 973,927 | Aug 6, 2026 | 13D/G |
| Steven Boyd | HC, IN | 4.99% | 1,586,521 | Aug 14, 2025 | 13D/G |
| Armistice Capital, LLC | IA, OO | 4.99% | 1,586,521 | Aug 14, 2025 | 13D/G |
| AnnaMed, Inc. | Corporation | 0.10% | 636 | Aug 25, 2026 | 13D/G |
Insider Trades (100)
Last 4 quarters: 9,726,644 acquired · 490,207 disposed
| Insider | Position | Date | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| PICKER DONALD H | Chief Science Officer | Nov 4, 2026 | OPTION EX. | 18 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Nov 4, 2026 | OPTION EX. | 17 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Nov 4, 2026 | TAX W/H | 4 | $8.46 | $33.84 | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Nov 4, 2026 | OPTION EX. | 41 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Nov 4, 2026 | OPTION EX. | 41 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Nov 4, 2026 | TAX W/H | 10 | $8.46 | $84.60 | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Nov 4, 2026 | OPTION EX. | 57 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Nov 4, 2026 | OPTION EX. | 57 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Nov 4, 2026 | TAX W/H | 14 | $8.46 | $118.44 | Form 4 |
| PICKER DONALD H | Chief Science Officer | Oct 15, 2026 | AWARD | 250,000 | $0.37 | $92.5K | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Oct 15, 2026 | AWARD | 415,000 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Oct 15, 2026 | OPTION EX. | 207,500 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Oct 15, 2026 | AWARD | 415,000 | $0.37 | $153.6K | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Oct 15, 2026 | OPTION EX. | 207,500 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Oct 15, 2026 | TAX W/H | 48,659 | $0.37 | $18.0K | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Oct 15, 2026 | AWARD | 260,000 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Oct 15, 2026 | OPTION EX. | 130,000 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Oct 15, 2026 | AWARD | 260,000 | $0.37 | $96.2K | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Oct 15, 2026 | OPTION EX. | 130,000 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Oct 15, 2026 | TAX W/H | 30,485 | $0.37 | $11.3K | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Aug 3, 2026 | BUY | 879,999 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Aug 3, 2026 | BUY | 293,333 | $0.75 | $220.0K | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Aug 3, 2026 | AWARD | 1,599,999 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Aug 3, 2026 | BUY | 533,333 | $0.75 | $400.0K | Form 4 |
| PICKER DONALD H | Chief Science Officer | Aug 3, 2026 | BUY | 519,999 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Aug 3, 2026 | BUY | 173,333 | $0.75 | $130.0K | Form 4 |
| PICKER DONALD H | Chief Science Officer | Jun 20, 2026 | OPTION EX. | 44 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Jun 22, 2026 | OPTION EX. | 71 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Jun 22, 2026 | OPTION EX. | 71 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Jun 22, 2026 | TAX W/H | 21 | $3.12 | $65.52 | Form 4 |
| PICKER DONALD H | Chief Science Officer | Jun 20, 2026 | OPTION EX. | 44 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Jun 20, 2026 | TAX W/H | 13 | $2.88 | $37.44 | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 20, 2026 | OPTION EX. | 150 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 22, 2026 | OPTION EX. | 360 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 22, 2026 | OPTION EX. | 360 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 22, 2026 | TAX W/H | 88 | $3.12 | $274.56 | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 20, 2026 | OPTION EX. | 150 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 20, 2026 | TAX W/H | 37 | $2.88 | $106.56 | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 20, 2026 | OPTION EX. | 109 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 22, 2026 | OPTION EX. | 174 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 22, 2026 | OPTION EX. | 174 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 22, 2026 | TAX W/H | 41 | $3.12 | $127.92 | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 20, 2026 | OPTION EX. | 109 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 20, 2026 | TAX W/H | 31 | $2.88 | $89.28 | Form 4 |
| PICKER DONALD H | CSO | Nov 12, 2025 | AWARD | 200,000 | — | — | Form 4 |
| PICKER DONALD H | CSO | Nov 12, 2025 | AWARD | 200,000 | $0.49 | $98.0K | Form 4 |
| Foster Jonathan P. | EVP & CFO | Nov 12, 2025 | AWARD | 400,000 | — | — | Form 4 |
| Foster Jonathan P. | EVP & CFO | Nov 12, 2025 | AWARD | 600,000 | $0.49 | $294.0K | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Nov 12, 2025 | AWARD | 750,000 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Nov 12, 2025 | AWARD | 830,000 | $0.49 | $406.7K | Form 4 |
| Yan Joy | director | Nov 12, 2025 | AWARD | 150,000 | $0.49 | $73.5K | Form 4 |
| Cermak Elizabeth | director | Nov 12, 2025 | AWARD | 150,000 | $0.49 | $73.5K | Form 4 |
| CANNON MICHAEL D | director | Nov 12, 2025 | AWARD | 150,000 | $0.49 | $73.5K | Form 4 |
| Climaco John M | director | Nov 12, 2025 | AWARD | 150,000 | $0.49 | $73.5K | Form 4 |
| George Robert E. | director | Nov 12, 2025 | AWARD | 150,000 | $0.49 | $73.5K | Form 4 |
| PICKER DONALD H | Chief Science Officer | Nov 4, 2025 | OPTION EX. | 8,750 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Nov 4, 2025 | OPTION EX. | 8,750 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Nov 4, 2025 | TAX W/H | 2,131 | $0.50 | $1.1K | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Nov 4, 2025 | OPTION EX. | 28,750 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Nov 4, 2025 | OPTION EX. | 28,750 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Nov 4, 2025 | TAX W/H | 7,001 | $0.50 | $3.5K | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Nov 4, 2025 | OPTION EX. | 20,625 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Nov 4, 2025 | OPTION EX. | 20,625 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Nov 4, 2025 | OPTION EX. | 5,023 | $0.50 | $2.5K | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 23, 2025 | BUY | 810,810 | $0.37 | $300.0K | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 23, 2025 | BUY | 270,270 | $0.37 | $100.0K | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 20, 2025 | OPTION EX. | 2,711 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 22, 2025 | OPTION EX. | 4,328 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 22, 2025 | OPTION EX. | 4,328 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 22, 2025 | TAX W/H | 1,054 | $0.27 | $281.42 | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 20, 2025 | OPTION EX. | 2,711 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 20, 2025 | TAX W/H | 661 | $0.27 | $176.49 | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 23, 2025 | BUY | 2,027,025 | $0.37 | $750.0K | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 23, 2025 | BUY | 675,675 | $0.37 | $250.0K | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 20, 2025 | OPTION EX. | 3,750 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 22, 2025 | OPTION EX. | 8,990 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 22, 2025 | OPTION EX. | 8,990 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 22, 2025 | TAX W/H | 2,190 | $0.27 | $584.73 | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 20, 2025 | OPTION EX. | 3,750 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 20, 2025 | TAX W/H | 914 | $0.27 | $244.04 | Form 4 |
| PICKER DONALD H | Chief Science Officer | Jun 20, 2025 | OPTION EX. | 1,078 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Jun 22, 2025 | OPTION EX. | 1,766 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Jun 22, 2025 | OPTION EX. | 1,766 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Jun 22, 2025 | TAX W/H | 430 | $0.27 | $114.81 | Form 4 |
| PICKER DONALD H | Chief Science Officer | Jun 20, 2025 | OPTION EX. | 1,078 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Jun 20, 2025 | TAX W/H | 263 | $0.27 | $70.22 | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 16, 2025 | OPTION EX. | 833 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 16, 2025 | OPTION EX. | 833 | — | — | Form 4 |
| Foster Jonathan P. | Chief Financial Officer | Jun 16, 2025 | TAX W/H | 203 | $0.69 | $139.10 | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 16, 2025 | OPTION EX. | 1,667 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 16, 2025 | OPTION EX. | 1,667 | — | — | Form 4 |
| KLEMP WALTER V | director, officer: CEO and President | Jun 16, 2025 | TAX W/H | 406 | $0.69 | $278.19 | Form 4 |
| Yan Joy | director | Nov 4, 2024 | AWARD | 10,000 | $2.45 | $24.5K | Form 4 |
| Cermak Elizabeth | director | Nov 4, 2024 | AWARD | 10,000 | $2.45 | $24.5K | Form 4 |
| Climaco John M | director | Nov 4, 2024 | AWARD | 10,000 | $2.45 | $24.5K | Form 4 |
| George Robert E. | director | Nov 4, 2024 | AWARD | 10,000 | $2.45 | $24.5K | Form 4 |
| CANNON MICHAEL D | director | Nov 4, 2024 | AWARD | 10,000 | $2.45 | $24.5K | Form 4 |
| PICKER DONALD H | Chief Science Officer | Oct 25, 2024 | AWARD | 5,744 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Nov 4, 2024 | AWARD | 35,000 | — | — | Form 4 |
| PICKER DONALD H | Chief Science Officer | Nov 4, 2024 | AWARD | 40,000 | $2.45 | $98.0K | Form 4 |