Insider · CIK 0001545414

Foster Jonathan P.

Reports to the SEC for 5 companies · HOUSTON, TX

sec.gov

Transactions

Companies

Filings

CIK

0001545414

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-10-15	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsA Award	Chief Financial Officer	AAward	+260K sh	—	—	1,547,717
2026-10-15	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+130K sh	—	—	435,673
2026-10-15	MBRXMoleculin Biotech, Inc.F Tax Payment	Chief Financial Officer	FTax Payment	−30.5K sh	$0.37	−$11.3K	405,188
2026-10-15	MBRXMoleculin Biotech, Inc. · Stock Options (right to buy)A Award	Chief Financial Officer	AAward	+260K sh	—	—	1,287,717
2026-10-15	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−130K sh	—	—	1,417,717
2026-08-03	MBRXMoleculin Biotech, Inc. · Series I WarrantsP Purchase	Chief Financial Officer	PPurchase	+880K sh	—	—	1,027,717
2026-08-03	MBRXMoleculin Biotech, Inc.P Purchase	Chief Financial Officer	PPurchase	+293K sh	—	—	305,673
2026-06-22	MBRXMoleculin Biotech, Inc.F Tax Payment	Chief Financial Officer	FTax Payment	−41 sh	$3.12	−$127.92	12,340
2026-06-22	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+174 sh	—	—	12,381
2026-06-22	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−174 sh	—	—	147,718
2026-06-20	MBRXMoleculin Biotech, Inc.F Tax Payment	Chief Financial Officer	FTax Payment	−31 sh	$2.88	−$89.28	12,207
2026-06-20	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−109 sh	—	—	147,892
2026-06-20	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+109 sh	—	—	12,238
2026-02-18	EMPDEmpery Digital Inc. · Stock Option (Right to buy)J Other	Director	JOther	−1 sh	—	—	0
2026-02-18	EMPDEmpery Digital Inc. · Stock Option (Right to buy)J Other	Director	JOther	−2 sh	—	—	0
2026-02-18	EMPDEmpery Digital Inc. · Stock Option (Right to buy)J Other	Director	JOther	−1 sh	—	—	0
2025-11-12	MBRXMoleculin Biotech, Inc. · Performance Based Restricted Stock UnitsA Award	Chief Financial Officer	AAward	+400K sh	—	—	2,017,695
2025-11-12	MBRXMoleculin Biotech, Inc. · Stock option (right to buy)A Award	Chief Financial Officer	AAward	+600K sh	—	—	1,617,695
2025-11-04	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−5,023 sh	$0.50	−$2,496.431	303,189
2025-11-04	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−20.6K sh	—	—	1,017,695
2025-11-04	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+20.6K sh	—	—	308,212
2025-07-21	EMPDEmpery Digital Inc.A Award	Director	AAward	+20K sh	$10.00	+$200K	20,000
2025-07-17	EMPDEmpery Digital Inc. · Stock options (right to buy)A Award	Director	AAward	+10K sh	—	—	10,000
2025-06-23	MBRXMoleculin Biotech, Inc. · Series E WarrantsP Purchase	Chief Financial Officer	PPurchase	−811K sh	—	—	1,038,320
2025-06-23	MBRXMoleculin Biotech, Inc.P Purchase	Chief Financial Officer	PPurchase	+270K sh	$0.37	+$100K	287,587
2025-06-22	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−4,328 sh	—	—	227,510
2025-06-22	MBRXMoleculin Biotech, Inc.F Tax Payment	Chief Financial Officer	FTax Payment	−1,054 sh	$0.27	−$281.418	17,317
2025-06-22	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+4,328 sh	—	—	18,371
2025-06-20	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−2,711 sh	—	—	231,838
2025-06-20	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+2,711 sh	—	—	14,704
2025-06-20	MBRXMoleculin Biotech, Inc.F Tax Payment	Chief Financial Officer	FTax Payment	−661 sh	$0.27	−$176.487	14,043
2025-06-16	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+833 sh	—	—	12,196
2025-06-16	MBRXMoleculin Biotech, Inc.F Tax Payment	Chief Financial Officer	FTax Payment	−203 sh	$0.69	−$139.096	11,993
2025-06-16	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−833 sh	—	—	230,684
2024-11-04	MBRXMoleculin Biotech, Inc. · Stock option (right to buy)A Award	Chief Financial Officer	AAward	+65K sh	—	—	129,837
2024-11-04	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsA Award	Chief Financial Officer	AAward	+82.5K sh	—	—	212,337
2024-10-25	MBRXMoleculin Biotech, Inc. · Performance Based Restricted Stock UnitsA Award	Chief Financial Officer	AAward	+19.2K sh	—	—	231,517
2024-06-22	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+4,329 sh	—	—	12,416
2024-06-22	MBRXMoleculin Biotech, Inc.F Tax Payment	Chief Financial Officer	FTax Payment	−1,053 sh	$3.74	−$3,938.22	11,363
2024-06-22	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−4,329 sh	—	—	64,837
2024-06-20	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−2,712 sh	—	—	69,166
2024-06-20	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+2,712 sh	—	—	8,723
2024-06-20	MBRXMoleculin Biotech, Inc.F Tax Payment	Chief Financial Officer	FTax Payment	−636 sh	$3.78	−$2,404.08	8,087
2024-06-16	MBRXMoleculin Biotech, Inc.F Tax Payment	Chief Financial Officer	FTax Payment	−196 sh	$4.14	−$811.44	6,011
2024-06-16	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsM Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	−834 sh	—	—	71,878
2024-06-16	MBRXMoleculin Biotech, Inc.M Exercise/Conversion	Chief Financial Officer	MExercise/Conversion	+834 sh	—	—	6,207
2023-12-26	MBRXMoleculin Biotech, Inc.P Purchase	Chief Financial Officer	PPurchase	+29K sh	$0.69	+$20K	80,556
2023-07-12	EMPDEmpery Digital Inc. · Stock OptionA Award	Director	AAward	+200K sh	—	—	376,250
2023-06-22	MBRXMoleculin Biotech, Inc. · Restricted Stock UnitsA Award	Chief Financial Officer	AAward	+260K sh	—	—	1,090,626
2023-06-22	MBRXMoleculin Biotech, Inc. · Stock option (right to buy)A Award	Chief Financial Officer	AAward	+150K sh	—	—	830,938

Recent filings

Accepted (ET)
Oct 16 21:004
Foster Jonathan P.0001437749-26-032864
SEC(opens sec.gov)
Aug 54
Foster Jonathan P.0001437749-26-025929
SEC(opens sec.gov)
Jun 244
Foster Jonathan P.0001437749-26-021610
SEC(opens sec.gov)
Feb 204
Foster Jonathan P.0001683168-26-001214
SEC(opens sec.gov)
Nov 144
Foster Jonathan P.0001437749-25-035184
SEC(opens sec.gov)
Nov 64
Foster Jonathan P.0001437749-25-033682
SEC(opens sec.gov)

Companies

Address

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

HOUSTON, TX, 77007