Company profile

Moleculin Biotech, Inc. insider acquisitions

Company CIK 0001659617 · Reported insider acquisitions and filing context.

Company filings at SEC ↗
MBRX · Nasdaq

These are company listings. A transaction is linked to a particular security only when the filing provides enough information.

Company activity summary

By transaction date, as of October 21, 2026.

7 days30 days90 daysOverlapping periods · securities and currencies kept separate
90-day company acquisitions grouped by security, category, original code, and currency.
Type / codeReported securityTransactionsKnown purchase valueMissing amounts
Stock awardCode AOptions (right to buy)Derivative · Currency not specified1Not applicable1
Stock awardCode ARestricted Stock UnitsDerivative · Currency not specified2Not applicable2
Stock awardCode AStock Options (right to buy)Derivative · Currency not specified2Not applicable2
Exercise / conversionCode MCommon StockNon-derivative · Currency not specified2Not applicable2

Known purchase value sums available amounts for non-derivative purchases only. Missing amounts are excluded. “Currency not specified” does not establish that the amounts share a currency. These summaries use all matching loaded records, while the timeline below covers only the current page.

Transaction timeline

Who reported an acquisition, and when the transaction occurred.

Reported acquisitions by transaction dateEach row is a reporting owner. Select a marker to open its transaction details. Jointly reported transactions appear for each associated reporting owner, without dividing quantities or amounts.PICKER DONALD HPICKER DONALD HKLEMP WALTER VKLEMP WALTER VFoster Jonathan P.Foster Jonathan P.Yan JoyYan JoyCermak ElizabethCermak ElizabethCANNON MICHAEL DCANNON MICHAEL DClimaco John MClimaco John MGeorge Robert E.George Robert E.PICKER DONALD H · October 15, 2026 · Stock award · Stock Options (right to buy)KLEMP WALTER V · October 15, 2026 · Stock award · Restricted Stock UnitsKLEMP WALTER V · October 15, 2026 · Stock award · Options (right to buy)KLEMP WALTER V · October 15, 2026 · Exercise / conversion · Common StockFoster Jonathan P. · October 15, 2026 · Stock award · Restricted Stock UnitsFoster Jonathan P. · October 15, 2026 · Stock award · Stock Options (right to buy)Foster Jonathan P. · October 15, 2026 · Exercise / conversion · Common StockPICKER DONALD H · November 12, 2025 · Stock award · Performance Based Restricted Stock UnitsPICKER DONALD H · November 12, 2025 · Stock award · Stock option (right to buy)Foster Jonathan P. · November 12, 2025 · Stock award · Performance Based Restricted Stock UnitsFoster Jonathan P. · November 12, 2025 · Stock award · Stock option (right to buy)KLEMP WALTER V · November 12, 2025 · Stock award · Performance Based Restricted Stock UnitsKLEMP WALTER V · November 12, 2025 · Stock award · Stock option (right to buy)Yan Joy · November 12, 2025 · Stock award · Stock Options (right to buy)Cermak Elizabeth · November 12, 2025 · Stock award · Stock Options (right to buy)CANNON MICHAEL D · November 12, 2025 · Stock award · Stock Options (right to buy)Climaco John M · November 12, 2025 · Stock award · Stock Options (right to buy)George Robert E. · November 12, 2025 · Stock award · Stock Options (right to buy)PICKER DONALD H · November 4, 2025 · Exercise / conversion · Common StockKLEMP WALTER V · November 4, 2025 · Exercise / conversion · Common StockFoster Jonathan P. · November 4, 2025 · Exercise / conversion · Common StockNov 4, 2025Oct 15, 2026
PurchaseStock awardGift receivedExercise / conversionConversionOther acquisition

21 dated transactions · 8 of 8 reporting owners shown. Select one owner to focus the chart.

View timeline as a table
Transaction dateCompany / securityReporting ownersAcquisition type
Oct 15, 2026Moleculin Biotech, Inc.Stock Options (right to buy)PICKER DONALD HStock award
Oct 15, 2026Moleculin Biotech, Inc.Restricted Stock UnitsKLEMP WALTER VStock award
Oct 15, 2026Moleculin Biotech, Inc.Options (right to buy)KLEMP WALTER VStock award
Oct 15, 2026Moleculin Biotech, Inc.Common StockKLEMP WALTER VExercise / conversion
Oct 15, 2026Moleculin Biotech, Inc.Restricted Stock UnitsFoster Jonathan P.Stock award
Oct 15, 2026Moleculin Biotech, Inc.Stock Options (right to buy)Foster Jonathan P.Stock award
Oct 15, 2026Moleculin Biotech, Inc.Common StockFoster Jonathan P.Exercise / conversion
Nov 12, 2025Moleculin Biotech, Inc.Performance Based Restricted Stock UnitsPICKER DONALD HStock award
Nov 12, 2025Moleculin Biotech, Inc.Stock option (right to buy)PICKER DONALD HStock award
Nov 12, 2025Moleculin Biotech, Inc.Performance Based Restricted Stock UnitsFoster Jonathan P.Stock award
Nov 12, 2025Moleculin Biotech, Inc.Stock option (right to buy)Foster Jonathan P.Stock award
Nov 12, 2025Moleculin Biotech, Inc.Performance Based Restricted Stock UnitsKLEMP WALTER VStock award
Nov 12, 2025Moleculin Biotech, Inc.Stock option (right to buy)KLEMP WALTER VStock award
Nov 12, 2025Moleculin Biotech, Inc.Stock Options (right to buy)Yan JoyStock award
Nov 12, 2025Moleculin Biotech, Inc.Stock Options (right to buy)Cermak ElizabethStock award
Nov 12, 2025Moleculin Biotech, Inc.Stock Options (right to buy)CANNON MICHAEL DStock award
Nov 12, 2025Moleculin Biotech, Inc.Stock Options (right to buy)Climaco John MStock award
Nov 12, 2025Moleculin Biotech, Inc.Stock Options (right to buy)George Robert E.Stock award
Nov 4, 2025Moleculin Biotech, Inc.Common StockPICKER DONALD HExercise / conversion
Nov 4, 2025Moleculin Biotech, Inc.Common StockKLEMP WALTER VExercise / conversion
Nov 4, 2025Moleculin Biotech, Inc.Common StockFoster Jonathan P.Exercise / conversion

Only transactions on this page are shown. Date windows end on the latest transaction date in this sample. Joint filings may appear on more than one row. Sales are not included. Share-price charts use a separate data source.

Share price & reported acquisitions

Daily closing prices from a separate source. The date window above also filters prices; reporting-owner and transaction-type selections filter the markers.

Price history is not available

Market-price history is not connected yet.

MBRX · Currency not specified. A marker uses that day's closing price, not the reported transaction price. No price is substituted for a missing trading day.

Reported acquisitions

Filing-date filters apply to the list and timeline. The summary above uses transaction dates.

Reset
Reported insider acquisitions, ordered by filing date, newest first. Currency is shown only when reported.
Filed / transactedReporting ownersType / securityQuantityPrice / reference valueDetails
Trade:
PICKER DONALD HChief Science Officer
Stock awardStock Options (right to buy)Derivative security · Code A250,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade:
KLEMP WALTER VCEO and President · Director
Stock awardRestricted Stock UnitsDerivative security · Code A415,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade:
KLEMP WALTER VCEO and President · Director
Stock awardOptions (right to buy)Derivative security · Code A415,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade:
KLEMP WALTER VCEO and President · Director
Exercise / conversionCommon StockNon-derivative security · Code M207,500Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade:
Foster Jonathan P.Chief Financial Officer
Stock awardRestricted Stock UnitsDerivative security · Code A260,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade:
Foster Jonathan P.Chief Financial Officer
Stock awardStock Options (right to buy)Derivative security · Code A260,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade:
Foster Jonathan P.Chief Financial Officer
Exercise / conversionCommon StockNon-derivative security · Code M130,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Stock awardPerformance Based Restricted Stock UnitsDerivative security · Code A200,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Stock awardStock option (right to buy)Derivative security · Code A200,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Stock awardPerformance Based Restricted Stock UnitsDerivative security · Code A400,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Stock awardStock option (right to buy)Derivative security · Code A600,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade:
KLEMP WALTER VCEO and President · Director
Stock awardPerformance Based Restricted Stock UnitsDerivative security · Code A750,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade:
KLEMP WALTER VCEO and President · Director
Stock awardStock option (right to buy)Derivative security · Code A830,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade:
Yan JoyDirector
Stock awardStock Options (right to buy)Derivative security · Code A150,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Stock awardStock Options (right to buy)Derivative security · Code A150,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Stock awardStock Options (right to buy)Derivative security · Code A150,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Stock awardStock Options (right to buy)Derivative security · Code A150,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Stock awardStock Options (right to buy)Derivative security · Code A150,000Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade:
PICKER DONALD HChief Science Officer
Exercise / conversionCommon StockNon-derivative security · Code M8,750Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade:
KLEMP WALTER VCEO and President · Director
Exercise / conversionCommon StockNon-derivative security · Code M28,750Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade:
Foster Jonathan P.Chief Financial Officer
Exercise / conversionCommon StockNon-derivative security · Code M20,625Not reported *Value: Not reportedCurrency not specifiedView ↗

Reporting owners are associated with a filing. Jointly reported amounts are not allocated to individual owners. Historical coverage is still being built. Read the methodology →