KLEMP WALTER V — SEC Form 4 filings
SEC reporting owner CIK 938419. 14 Form 4 filings on record with FilingPulse; latest filed 2026-09-08.
Transaction summary — filings shown
Covers all 14 filings on record, filed 2024-06-18 to 2026-09-08. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 2 legs across 2 filings — 1,209,008 shares, $250,000 total (shares × price as filed on priced legs).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 40.
- Largest priced transaction: purchase of 675,675 shares @ $0.37 ($250,000) in Moleculin Biotech, Inc., filed 2025-06-23.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Moleculin Biotech, Inc. (MBRX) | CEO and President, Director | 11 | 2 legs · 1,209,008 sh · $250,000 | — | 37 |
| Autonomix Medical, Inc. (AMIX) | Director | 3 | — | — | 3 |
Form 4 filings — KLEMP WALTER V
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-08 | 4 | Autonomix Medical, Inc. (AMIX) | Grant/award (A): 13,000 | EDGAR |
| 2026-08-05 | 4 | Moleculin Biotech, Inc. (MBRX) | Purchase (P): 533,333 · Grant/award (A): 1,599,999 (derivative) | EDGAR |
| 2026-06-24 | 4 | Moleculin Biotech, Inc. (MBRX) | Option exercise (M): 150 · Tax withholding (F): 37 @ $2.88 · Option exercise (M): 360 · Tax withholding (F): 88 @ $3.12 · Option exercise (M): 150 (derivative) @ $0 · Option exercise (M): 360 (derivative) @ $0 | EDGAR |
| 2025-11-14 | 4 | Moleculin Biotech, Inc. (MBRX) | Grant/award (A): 830,000 (derivative) · Grant/award (A): 750,000 (derivative) | EDGAR |
| 2025-11-06 | 4 | Moleculin Biotech, Inc. (MBRX) | Option exercise (M): 28,750 · Tax withholding (F): 7,001 @ $0.50 · Option exercise (M): 28,750 (derivative) @ $0 | EDGAR |
| 2025-08-13 | 4 | Autonomix Medical, Inc. (AMIX) | Disposition to issuer (D): 8,773 (derivative) | EDGAR |
| 2025-06-23 | 4 | Moleculin Biotech, Inc. (MBRX) | Option exercise (M): 3,750 · Tax withholding (F): 914 @ $0.27 · Option exercise (M): 8,990 · Tax withholding (F): 2,190 @ $0.27 · Purchase (P): 675,675 @ $0.37 · Option exercise (M): 3,750 (derivative) @ $0 · +2 more | EDGAR |
| 2025-06-18 | 4 | Moleculin Biotech, Inc. (MBRX) | Option exercise (M): 1,667 · Tax withholding (F): 406 @ $0.69 · Option exercise (M): 1,667 (derivative) @ $0 | EDGAR |
| 2024-11-06 | 4 | Moleculin Biotech, Inc. (MBRX) | Grant/award (A): 100,000 (derivative) · Grant/award (A): 115,000 (derivative) · Grant/award (A): 43,590 (derivative) | EDGAR |
| 2024-07-05 | 4 | Moleculin Biotech, Inc. (MBRX) | Option exercise (M): 982 · Tax withholding (F): 240 @ $3.57 · Option exercise (M): 982 (derivative) @ $0 | EDGAR |
| 2024-06-25 | 4 | Moleculin Biotech, Inc. (MBRX) | Option exercise (M): 8,990 · Tax withholding (F): 2,190 @ $3.74 · Option exercise (M): 8,990 (derivative) @ $0 | EDGAR |
| 2024-06-24 | 4 | Autonomix Medical, Inc. (AMIX) | Grant/award (A): 175,452 (derivative) | EDGAR |
| 2024-06-21 | 4 | Moleculin Biotech, Inc. (MBRX) | Option exercise (M): 3,750 · Tax withholding (F): 914 @ $3.78 · Option exercise (M): 3,750 (derivative) @ $0 | EDGAR |
| 2024-06-18 | 4 | Moleculin Biotech, Inc. (MBRX) | Option exercise (M): 1,667 · Tax withholding (F): 406 @ $4.14 · Option exercise (M): 1,667 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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