Insider · CIK 0001863633

Breen Michael Martin

Reports to the SEC for 2 companies · BEVERLY HILLS, CA

sec.gov

Transactions

Companies

Filings

CIK

0001863633

Forms 4 and 5

Insider transactions

19 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2025-09-04	GTBPGT Biopharma, Inc. · Option to purchase Common StockA Award	Director, CEO and Director	AAward	+100K sh	—	—	100,000
2025-09-04	GTBPGT Biopharma, Inc. · Option to purchase Common StockA Award	Director, CEO and Director	AAward	+100K sh	—	—	100,000
2025-09-04	GTBPGT Biopharma, Inc. · Option to purchase Common StockA Award	Director, CEO and Director	AAward	+100K sh	—	—	100,000
2023-08-11	GTBPGT Biopharma, Inc.A Award	Director, CEO and Director	AAward	+200K sh	$0.29	+$57.4K	856,218
2023-05-03	PROPPrairie Operating Co.A Award	Director	AAward	+219K sh	$0.17	+$38.2K	1,144,683
2023-05-03	PROPPrairie Operating Co.P Purchase	Director	PPurchase	+916K sh	$0.11	+$99.9K	926,112
2023-04-11	GTBPGT Biopharma, Inc.P Purchase	Director, CEO and Director	PPurchase	+50K sh	$0.50	+$25K	656,218
2023-01-27	GTBPGT Biopharma, Inc. · Option to purchase Common StockA Award	Director, CEO and Director	AAward	+500K sh	—	—	500,000
2022-07-15	GTBPGT Biopharma, Inc.A Award	Director, CEO and Director	AAward	+278K sh	—	—	606,218
2022-07-15	GTBPGT Biopharma, Inc. · Option to purchase Common StockA Award	Director, CEO and Director	AAward	+50K sh	—	—	50,000
2021-02-25	GTBPGT Biopharma, Inc. · 10% Senior Convertible DebentureC Conversion	Director, CEO and Director	CConversion	−30K sh	—	—	0
2021-02-25	GTBPGT Biopharma, Inc.C Conversion	Director, CEO and Director	CConversion	+40.2K sh	$3.40	+$137K	318,301
2021-02-25	GTBPGT Biopharma, Inc.C Conversion	Director, CEO and Director	CConversion	+9,859 sh	$3.40	+$33.5K	328,160
2021-02-25	GTBPGT Biopharma, Inc. · 10% Senior Convertible DebentureC Conversion	Director, CEO and Director	CConversion	−100K sh	—	—	0
2021-02-16	GTBPGT Biopharma, Inc. · Option to purchase Common StockA Award	Director, CEO and Director	AAward	+50K sh	—	—	50,000
2021-02-16	GTBPGT Biopharma, Inc.A Award	Director, CEO and Director	AAward	+278K sh	—	—	278,058
2020-08-03	PROPPrairie Operating Co. · Stock Option (Right to BuyA Award	Director	AAward	+37.5K sh	—	—	67,500
2019-09-12	PROPPrairie Operating Co. · Stock Option (Right to BuyA Award	Director	AAward	+15K sh	—	—	30,000
2018-10-16	PROPPrairie Operating Co. · Stock Option (Right to Buy)A Award	Director	AAward	+15K sh	—	—	15,000

Recent filings

Accepted (ET)
Sep 84
Breen Michael Martin0001641172-25-026890
SEC(opens sec.gov)
Aug 154
Breen Michael Martin0001493152-23-029061
SEC(opens sec.gov)
May 54
Breen Michael Martin0001493152-23-015707
SEC(opens sec.gov)
Apr 114
Breen Michael Martin0001493152-23-011888
SEC(opens sec.gov)
Feb 14
Breen Michael Martin0001493152-23-003230
SEC(opens sec.gov)
Jul 194
Breen Michael Martin0001493152-22-019876
SEC(opens sec.gov)
Nov 124
Breen Michael Martin0001654954-21-012057
SEC(opens sec.gov)

Companies

Address

C/O GT BIOPHARMA, INC 9350 WILSHIRE BLVD., STE. 203

BEVERLY HILLS, CA, 90212