Company · CIK 0001659617 · SIC 2834 — Pharmaceutical Preparations · Nasdaq
Moleculin Biotech, Inc. · MBRX
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 3, 2026 PForm 4 → | Aug 5, 4:16 pm EDT | Jonathan P. FosterChief Financial Officer | 293,333 | — | — | 305,673 | — | |
| Aug 3, 2026 PForm 4 → | Aug 5, 4:16 pm EDT | Walter V KlempCEO and President, Director | 533,333 | — | — | 564,340 | — | |
| Aug 3, 2026 PForm 4 → | Aug 5, 4:15 pm EDT | Donald H PickerChief Science Officer | 173,333 | — | — | 174,086 | — | |
| Jun 20, 2026 FMForm 4 → | Jun 24, 9:01 pm EDT | Donald H PickerChief Science Officer | 149 | $3.03 | $103 | 753 | — | late |
| Jun 20, 2026 FMForm 4 → | Jun 24, 9:00 pm EDT | Walter V KlempCEO and President, Director | 635 | $3.05 | $381 | 31,007 | — | late |
| Jun 20, 2026 FMForm 4 → | Jun 24, 9:00 pm EDT | Jonathan P. FosterChief Financial Officer | 355 | $3.02 | $217 | 12,340 | — | late |
| Aug 16, 2017 SForm 4 → | Aug 18, 6:01 pm EDT | Walter V KlempChief Executive Officer, Director, 10% Owner | 100,000 | $1.70 | $170,300 | 967,724 | −9.37% | plan? |
| Aug 16, 2017 SForm 4 → | Aug 18, 6:00 pm EDT | Waldemar Priebe10% Owner | 100,000 | $1.70 | $170,300 | 2,781,573 | −3.47% | plan? |
| May 11, 2017 PForm 4 → | May 12, 5:19 pm EDT | Walter V KlempChief Executive Officer, Director, 10% Owner | 12,000 | $0.81 | $9,720 | 1,067,724 | +1.14% | plan? |
| May 5, 2017 PForm 4 → | May 5, 4:30 pm EDT | Jacqueline NorthcutDirector | 1,000 | $0.82 | $820 | 1,000 | — | plan? |
| Apr 28, 2017 PForm 4 → | Apr 28, 4:31 pm EDT | Robert E. GeorgeDirector | 1,000 | $0.9384 | $938 | 1,000 | — | plan? |
| Apr 25, 2017 PForm 4 → | Apr 26, 4:30 pm EDT | Jonathan P. FosterExec. Vice President & CFO | 10,000 | $0.8649 | $8,649 | 10,000 | — | plan? |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 3, 2026 PForm 4 → | Aug 5, 4:16 pm EDT | Jonathan P. FosterChief Financial Officer | 879,999 | — | — | 1,027,717 | — | |
| Aug 3, 2026 AForm 4 → | Aug 5, 4:16 pm EDT | Walter V KlempCEO and President, Director | 1,599,999 | — | — | 1,926,335 | — | |
| Aug 3, 2026 PForm 4 → | Aug 5, 4:15 pm EDT | Donald H PickerChief Science Officer | 519,999 | — | — | 539,595 | — | |
| Jun 20, 2026 MForm 4 → | Jun 24, 9:01 pm EDT | Donald H PickerChief Science Officer | 115 | — | — | 19,596 | — | late |
| Jun 20, 2026 MForm 4 → | Jun 24, 9:00 pm EDT | Walter V KlempCEO and President, Director | 510 | — | — | 326,336 | — | late |
| Jun 20, 2026 MForm 4 → | Jun 24, 9:00 pm EDT | Jonathan P. FosterChief Financial Officer | 283 | — | — | 147,718 | — | late |
| Jun 6, 2018 AForm 4 → | Jun 8, 5:27 pm EDT | Michael D CannonDirector | 35,000 | — | — | 70,000 | — | |
| Jun 6, 2018 AForm 4 → | Jun 8, 5:27 pm EDT | John M ClimacoDirector | 35,000 | — | — | 55,000 | — | |
| Jun 6, 2018 AForm 4 → | Jun 8, 5:25 pm EDT | Donald H PickerChief Science Officer | 75,000 | — | — | 135,000 | — | |
| Jun 6, 2018 AForm 4 → | Jun 8, 5:25 pm EDT | Robert E. GeorgeDirector | 35,000 | — | — | 70,000 | — | |
| Jun 6, 2018 AForm 4 → | Jun 8, 5:24 pm EDT | Jonathan P. FosterChief Financial Officer | 301,000 | — | — | 846,000 | — | |
| Jun 6, 2018 AForm 4 → | Jun 8, 5:24 pm EDT | Walter V KlempCEO and President, Director | 603,000 | — | — | 943,000 | — | |
| Oct 3, 2017 AForm 4 → | Oct 5, 6:04 pm EDT | Donald H PickerChief Science Officer | 60,000 | — | — | 60,000 | — | |
| Oct 3, 2017 AForm 4 → | Oct 5, 6:02 pm EDT | Jonathan P. FosterChief Financial Officer | 145,000 | — | — | 545,000 | — | |
| Oct 3, 2017 AForm 4 → | Oct 5, 5:59 pm EDT | Walter V KlempCEO, Director, 10% Owner | 340,000 | — | — | 340,000 | — | |
| Jul 24, 2017 AForm 4 → | Jul 26, 9:10 pm EDT | Michael D CannonDirector | 15,000 | — | — | 35,000 | — | |
| Jul 24, 2017 AForm 4 → | Jul 26, 9:08 pm EDT | Robert E. GeorgeDirector | 15,000 | — | — | 35,000 | — | |
| Jul 24, 2017 AForm 4 → | Jul 26, 9:06 pm EDT | John M ClimacoDirector | 20,000 | — | — | 20,000 | — | |
| Sep 23, 2016 AForm 4 → | Sep 27, 8:58 pm EDT | Michael D CannonDirector | 20,000 | — | — | 20,000 | — | |
| Sep 23, 2016 AForm 4 → | Sep 27, 8:58 pm EDT | Jacqueline NorthcutDirector | 20,000 | — | — | 20,000 | — | |
| Sep 23, 2016 AForm 4 → | Sep 27, 8:58 pm EDT | Robert E. GeorgeDirector | 20,000 | — | — | 20,000 | — | |
| Aug 19, 2016 AForm 4 → | Aug 23, 4:46 pm EDT | Jonathan P. FosterExec. Vice President & CFO | 400,000 | — | — | 400,000 | — |