MBRX
Moleculin Biotech, Inc.
NASDAQ · Healthcare · Biotechnology · US
$0.77
−0.88%5
Insider buys (3m)
0
Insider sells (3m)
$750.0K
Net value (3m)
-75.1%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Aug 5, 2026 | KLEMP WALTER V · director, officer: CEO and President | Purchase | 533,333 | $0.75 |
| Aug 5, 2026 | KLEMP WALTER V · director, officer: CEO and President | A-Award | 1,599,999 | $0.00 |
| Aug 5, 2026 | Foster Jonathan P. · officer: Chief Financial Officer | Purchase | 879,999 | $0.00 |
| Aug 5, 2026 | PICKER DONALD H · officer: Chief Science Officer | Purchase | 519,999 | $0.00 |
| Aug 5, 2026 | PICKER DONALD H · officer: Chief Science Officer | Purchase | 173,333 | $0.75 |
| Aug 5, 2026 | Foster Jonathan P. · officer: Chief Financial Officer | Purchase | 293,333 | $0.75 |
| Jun 24, 2026 | PICKER DONALD H · officer: Chief Science Officer | F-InKind | 13 | $2.88 |
| Jun 24, 2026 | PICKER DONALD H · officer: Chief Science Officer | M-Exempt | 44 | $0.00 |
| Jun 24, 2026 | Foster Jonathan P. · officer: Chief Financial Officer | F-InKind | 41 | $3.12 |
| Jun 24, 2026 | Foster Jonathan P. · officer: Chief Financial Officer | M-Exempt | 174 | $0.00 |
| Jun 24, 2026 | Foster Jonathan P. · officer: Chief Financial Officer | F-InKind | 31 | $2.88 |
| Jun 24, 2026 | Foster Jonathan P. · officer: Chief Financial Officer | M-Exempt | 109 | $0.00 |
| Jun 24, 2026 | KLEMP WALTER V · director, officer: CEO and President | F-InKind | 88 | $3.12 |
| Jun 24, 2026 | KLEMP WALTER V · director, officer: CEO and President | M-Exempt | 360 | $0.00 |
| Jun 24, 2026 | KLEMP WALTER V · director, officer: CEO and President | F-InKind | 37 | $2.88 |
| Jun 24, 2026 | KLEMP WALTER V · director, officer: CEO and President | M-Exempt | 150 | $0.00 |
| Jun 24, 2026 | PICKER DONALD H · officer: Chief Science Officer | F-InKind | 21 | $3.12 |
| Jun 24, 2026 | PICKER DONALD H · officer: Chief Science Officer | M-Exempt | 71 | $0.00 |
| Nov 14, 2025 | Climaco John M · director | A-Award | 150,000 | $0.49 |
| Nov 14, 2025 | George Robert E. · director | A-Award | 150,000 | $0.49 |
| Nov 14, 2025 | CANNON MICHAEL D · director | A-Award | 150,000 | $0.49 |
| Nov 14, 2025 | Cermak Elizabeth · director | A-Award | 150,000 | $0.49 |
| Nov 14, 2025 | Foster Jonathan P. · officer: EVP & CFO | A-Award | 600,000 | $0.49 |
| Nov 14, 2025 | KLEMP WALTER V · director, officer: CEO and President | A-Award | 750,000 | $0.00 |
| Nov 14, 2025 | Foster Jonathan P. · officer: EVP & CFO | A-Award | 400,000 | $0.00 |
| Nov 14, 2025 | PICKER DONALD H · officer: CSO | A-Award | 200,000 | $0.00 |
| Nov 14, 2025 | KLEMP WALTER V · director, officer: CEO and President | A-Award | 830,000 | $0.49 |
| Nov 14, 2025 | Yan Joy · director | A-Award | 150,000 | $0.49 |
| Nov 6, 2025 | PICKER DONALD H · officer: Chief Science Officer | F-InKind | 2,131 | $0.50 |
| Nov 6, 2025 | PICKER DONALD H · officer: Chief Science Officer | M-Exempt | 8,750 | $0.00 |
Institutional positioning
13F filings over the trailing two quarters
New 12Increased 11Reduced 3Sold out 8
| Filer | Action | Shares | Filed |
|---|---|---|---|
| SABBY MANAGEMENT, LLC | New Position | 75,021 | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 47,252 | Aug 12, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 42,215 | Aug 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 32,329 | May 15, 2026 |
| VANGUARD FIDUCIARY TRUST CO | Increased | 29,883 | Aug 13, 2026 |
| XTX Topco Ltd | New Position | 22,942 | Aug 14, 2026 |
| MORGAN STANLEY | Increased | 20,036 | Aug 13, 2026 |
| Rockefeller Capital Management L.P. | Increased | 15,000 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 13,869 | May 15, 2026 |
| HRT FINANCIAL LP | New Position | 13,739 | May 14, 2026 |
| VANGUARD FIDUCIARY TRUST CO | New Position | 6,072 | May 8, 2026 |
| ROCKEFELLER CAPITAL MANAGEMENT L.P. | Increased | 4,421 | May 14, 2026 |
| Tower Research Capital LLC (TRC) | Increased | 3,514 | Aug 11, 2026 |
| UBS GROUP AG | Reduced | 3,409 | May 5, 2026 |
| CITIGROUP INC | New Position | 2,674 | Aug 3, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Aug 5, 2026