Insider · CIK 0000938419

KLEMP WALTER V

Reports to the SEC for 3 companies · HOUSTON, TX

sec.gov

Transactions

Companies

Filings

CIK

0000938419

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-10-15	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Director, CEO and President	MExercise/Conversion	+208K sh	—	—	771,840
2026-10-15	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, CEO and President	MExercise/Conversion	−208K sh	—	—	2,548,335
2026-10-15	MBRXMoleculin Biotech, Inc.F Tax Payment	Director, CEO and President	FTax Payment	−48.7K sh	$0.37	−$18K	723,181
2026-10-15	MBRXMoleculin Biotech, Inc. · Options (right to buy)A Award	Director, CEO and President	AAward	+415K sh	—	—	2,341,335
2026-10-15	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsA Award	Director, CEO and President	AAward	+415K sh	—	—	2,756,335
2026-09-03	AMIXAutonomix Medical, Inc.A Award	Director	AAward	+13K sh	—	—	20,118
2026-08-03	MBRXMoleculin Biotech, Inc.P Purchase	Director, CEO and President	PPurchase	+533K sh	—	—	564,340
2026-08-03	MBRXMoleculin Biotech, Inc. · Series I WarrantsA Award	Director, CEO and President	AAward	+1.6M sh	—	—	1,926,335
2026-06-22	MBRXMoleculin Biotech, Inc.F Tax Payment	Director, CEO and President	FTax Payment	−88 sh	$3.12	−$274.56	31,007
2026-06-22	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, CEO and President	MExercise/Conversion	−360 sh	—	—	326,336
2026-06-22	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Director, CEO and President	MExercise/Conversion	+360 sh	—	—	31,088
2026-06-20	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, CEO and President	MExercise/Conversion	−150 sh	—	—	326,696
2026-06-20	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Director, CEO and President	MExercise/Conversion	+150 sh	—	—	30,765
2026-06-20	MBRXMoleculin Biotech, Inc.F Tax Payment	Director, CEO and President	FTax Payment	−37 sh	$2.88	−$106.56	30,728
2025-11-12	MBRXMoleculin Biotech, Inc. · Performance Based Restricted Stock UnitsA Award	Director, CEO and President	AAward	+750K sh	—	—	3,960,731
2025-11-12	MBRXMoleculin Biotech, Inc. · Stock option (right to buy)A Award	Director, CEO and President	AAward	+830K sh	—	—	3,210,731
2025-11-04	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, CEO and President	MExercise/Conversion	−28.8K sh	—	—	2,380,731
2025-11-04	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Director, CEO and President	MExercise/Conversion	+28.8K sh	—	—	772,357
2025-11-04	MBRXMoleculin Biotech, Inc.F Tax Payment	Director, CEO and President	FTax Payment	−7,001 sh	$0.50	−$3,479.497	765,356
2025-08-11	AMIXAutonomix Medical, Inc. · Option (Right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−8,773 sh	—	—	1,250
2025-06-23	MBRXMoleculin Biotech, Inc.P Purchase	Director, CEO and President	PPurchase	+676K sh	$0.37	+$250K	743,607
2025-06-23	MBRXMoleculin Biotech, Inc. · Series E WarrantsP Purchase	Director, CEO and President	PPurchase	−2.03M sh	—	—	2,409,481
2025-06-22	MBRXMoleculin Biotech, Inc.F Tax Payment	Director, CEO and President	FTax Payment	−2,190 sh	$0.27	−$584.73	67,932
2025-06-22	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Director, CEO and President	MExercise/Conversion	+8,990 sh	—	—	70,122
2025-06-22	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, CEO and President	MExercise/Conversion	−8,990 sh	—	—	382,456
2025-06-20	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Director, CEO and President	MExercise/Conversion	+3,750 sh	—	—	62,046
2025-06-20	MBRXMoleculin Biotech, Inc.F Tax Payment	Director, CEO and President	FTax Payment	−914 sh	$0.27	−$244.038	61,132
2025-06-20	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, CEO and President	MExercise/Conversion	−3,750 sh	—	—	391,446
2025-06-16	MBRXMoleculin Biotech, Inc.F Tax Payment	Director, CEO and President	FTax Payment	−406 sh	$0.69	−$278.191	58,296
2025-06-16	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, CEO and President	MExercise/Conversion	−1,667 sh	—	—	370,075
2025-06-16	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Director, CEO and President	MExercise/Conversion	+1,667 sh	—	—	58,702
2024-11-04	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsA Award	Director, CEO and President	AAward	+115K sh	—	—	328,152
2024-11-04	MBRXMoleculin Biotech, Inc. · Stock option (right to buy)A Award	Director, CEO and President	AAward	+100K sh	—	—	213,152
2024-10-25	MBRXMoleculin Biotech, Inc. · Performance Based Restricted Stock UnitsA Award	Director, CEO and President	AAward	+43.6K sh	—	—	371,742
2024-07-02	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, CEO and President	MExercise/Conversion	−982 sh	—	—	113,152
2024-07-02	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Director, CEO and President	MExercise/Conversion	+982 sh	—	—	57,275
2024-07-02	MBRXMoleculin Biotech, Inc.F Tax Payment	Director, CEO and President	FTax Payment	−240 sh	$3.57	−$856.8	57,035
2024-06-22	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, CEO and President	MExercise/Conversion	−8,990 sh	—	—	114,134
2024-06-22	MBRXMoleculin Biotech, Inc.F Tax Payment	Director, CEO and President	FTax Payment	−2,190 sh	$3.74	−$8,190.6	56,293
2024-06-22	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Director, CEO and President	MExercise/Conversion	+8,990 sh	—	—	58,483
2024-06-21	AMIXAutonomix Medical, Inc. · Option (Right to buy)A Award	Director	AAward	+175K sh	—	—	200,452
2024-06-20	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, CEO and President	MExercise/Conversion	−3,750 sh	—	—	123,124
2024-06-20	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Director, CEO and President	MExercise/Conversion	+3,750 sh	—	—	50,407
2024-06-20	MBRXMoleculin Biotech, Inc.F Tax Payment	Director, CEO and President	FTax Payment	−914 sh	$3.78	−$3,454.92	49,493
2024-06-16	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, CEO and President	MExercise/Conversion	−1,667 sh	—	—	126,874
2024-06-16	MBRXMoleculin Biotech, Inc.F Tax Payment	Director, CEO and President	FTax Payment	−406 sh	$4.14	−$1,680.84	46,657
2024-06-16	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Director, CEO and President	MExercise/Conversion	+1,667 sh	—	—	47,063
2023-12-26	MBRXMoleculin Biotech, Inc.P Purchase	Director, CEO and President	PPurchase	+188K sh	$0.69	+$130K	680,880
2023-07-11	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, CEO and President	MExercise/Conversion	−13.2K sh	—	—	1,928,145
2023-07-11	MBRXMoleculin Biotech, Inc.F Tax Payment	Director, CEO and President	FTax Payment	−3,216 sh	$0.59	−$1,898.405	492,476

Recent filings

Accepted (ET)
Oct 16 21:004
KLEMP WALTER V0001437749-26-032865
SEC(opens sec.gov)
Sep 84
KLEMP WALTER V0001437749-26-029835
SEC(opens sec.gov)
Aug 54
KLEMP WALTER V0001437749-26-025928
SEC(opens sec.gov)
Jun 244
KLEMP WALTER V0001437749-26-021611
SEC(opens sec.gov)
Nov 144
KLEMP WALTER V0001437749-25-035182
SEC(opens sec.gov)
Nov 64
KLEMP WALTER V0001437749-25-033683
SEC(opens sec.gov)
Aug 134
KLEMP WALTER V0001437749-25-026638
SEC(opens sec.gov)

Companies

Address

C/O MOLECULIN BIOTECH, INC. 5300 MEMORIAL DR., SUITE 950

HOUSTON, TX, 77007