ISSUER PROFILE · CIK 0001659617 · CUSIP 60855D408
Moleculin Biotech, Inc.MBRX
3 13D/G filings
3 distinct filers
17 insider transactions (365d)
Cross-Reference Snapshot
Activist filings
3
2 SCHEDULE 13D · 1 SC
Distinct filers
3
multi-activist cluster
Insiders (365d)
17
11 buys · 0 sales
Latest short DTC
1.00
as of 2026-08-14
13D/G Filings Timeline · 3 total
Form 4 Insider Transactions · last 365d
| Date | Insider | Role | Type | Shares | Price | Value |
|---|
| 2025-11-12 |
PICKER DONALD H |
officer |
Award |
200,000 |
$0.49 |
$98K |
| 2025-11-12 |
Foster Jonathan P. |
officer |
Award |
600,000 |
$0.49 |
$294K |
| 2025-11-12 |
KLEMP WALTER V |
director, officer |
Award |
830,000 |
$0.49 |
$407K |
| 2025-11-12 |
Yan Joy |
director |
Award |
150,000 |
$0.49 |
$74K |
| 2025-11-12 |
Cermak Elizabeth |
director |
Award |
150,000 |
$0.49 |
$74K |
| 2025-11-12 |
CANNON MICHAEL D |
director |
Award |
150,000 |
$0.49 |
$74K |
| 2025-11-12 |
Climaco John M |
director |
Award |
150,000 |
$0.49 |
$74K |
| 2025-11-12 |
George Robert E. |
director |
Award |
150,000 |
$0.49 |
$74K |
| 2025-11-12 |
KLEMP WALTER V |
director, officer |
Award |
750,000 |
— |
— |
| 2025-11-12 |
Foster Jonathan P. |
officer |
Award |
400,000 |
— |
— |
| 2025-11-12 |
PICKER DONALD H |
officer |
Award |
200,000 |
— |
— |
| 2025-11-04 |
PICKER DONALD H |
officer |
Option exercise |
8,750 |
— |
— |
| 2025-11-04 |
KLEMP WALTER V |
director, officer |
Option exercise |
28,750 |
— |
— |
| 2025-11-04 |
Foster Jonathan P. |
officer |
Option exercise |
20,625 |
— |
— |
| 2025-11-04 |
Foster Jonathan P. |
officer |
Option exercise |
5,023 |
$0.50 |
$2K |
| 2025-11-04 |
KLEMP WALTER V |
director, officer |
F |
7,001 |
$0.50 |
$3K |
| 2025-11-04 |
PICKER DONALD H |
officer |
F |
2,131 |
$0.50 |
$1K |
FINRA Short Interest History
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|
| 2026-08-14 |
316,392 |
1.00 |
-79.9% |
| 2026-07-31 |
1,577,365 |
1.00 |
+49.6% |
| 2026-07-15 |
1,054,620 |
4.27 |
-25.4% |
| 2026-06-30 |
1,413,550 |
1.00 |
+22.4% |
| 2026-06-15 |
1,154,952 |
5.06 |
+39.3% |
| 2026-05-29 |
828,958 |
3.15 |
+57.1% |
| 2026-05-15 |
527,786 |
2.12 |
+57.9% |
| 2026-04-30 |
334,361 |
2.57 |
+141.0% |
| 2026-04-15 |
138,763 |
1.67 |
+21.8% |
| 2026-03-31 |
113,910 |
1.10 |
+4.0% |
| 2026-03-13 |
109,555 |
1.00 |
-42.7% |
| 2026-02-27 |
191,156 |
1.00 |
-56.7% |
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