STERN ADAM K reported 3 transactions at MATINAS BIOPHARMA HOLDINGS, INC.

Review the transaction codes below to understand the nature of each event.

STERN ADAM K

Filed: 8/13/2026ACC: 0000921895-26-002109

InsiderSTERN ADAM KCIK 1403497

→

IssuerMATINAS BIOPHARMA HOLDINGS, INC.CIK 1582554

Director

Since Nov 2018

+1.92M

Net shares

Net buyer

$400.6K

Total acquired

Open market trades

0B · 0S

Total transactions

2.98M acquired · 1.07M disposed

Non-Derivative Transactions3

Common Stock, par value $0.0001 per share

Indirect

X · X

+92.10K

Price / share

$0.64

Trade value

$59.37K

% of position

431.4%

10/31/2025

21.35K→113.45K

Common Stock, par value $0.0001 per share

Indirect

X · X

+344.71K

Price / share

$0.35

Trade value

$120.65K

% of position

477.5%

7/10/2026

72.19K→416.90K

Common Stock, par value $0.0001 per share

Indirect

X · X

+630.34K

Price / share

$0.35

Trade value

$220.62K

% of position

555.6%

7/10/2026

113.45K→743.78K

Total

Net shares

+1.07M

Net value

$400.63K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock, par value $0.0001 per share Indirect	10/31/2025	X · X	+92.10K	$0.64	$59.37K	431.4%	21.35K	113.45K
Common Stock, par value $0.0001 per share Indirect	7/10/2026	X · X	+344.71K	$0.35	$120.65K	477.5%	72.19K	416.90K
Common Stock, par value $0.0001 per share Indirect	7/10/2026	X · X	+630.34K	$0.35	$220.62K	555.6%	113.45K	743.78K
Total			+1.07M		$400.63K

Derivative Transactions8

Warrants to Purchase Common Stock

Indirect

J · J

Converts to

Common Stock, par value $0.0001 per share

800K shares

+800K

Strike price

0.6446

Held after

800K

Exercisable

—

10/16/2025

Series C Convertible Preferred Stock

Indirect

J · J

Converts to

Common Stock, par value $0.0001 per share

452.22K shares

+265.00

Strike price

0.586

Held after

265.00

Exercisable

—

10/16/2025

Warrants to Purchase Common Stock

Indirect

X · X

Converts to

Common Stock, par value $0.0001 per share

92.10K shares

−92.10K

Strike price

0.6446

Held after

630.34K

Exercisable

—

10/31/2025

Warrants to Purchase Common Stock

Indirect

X · X

Converts to

Common Stock, par value $0.0001 per share

630.34K shares

−630.34K

Strike price

0.35

Held after

0.00

Exercisable

—

7/10/2026

Warrants to Purchase Common Stock

Indirect

A · Award

Converts to

Common Stock, par value $0.0001 per share

630.34K shares

+630.34K

Strike price

0.35

Held after

630.34K

Exercisable

—

7/10/2026

Warrants to Purchase Common Stock

Indirect

X · X

Converts to

Common Stock, par value $0.0001 per share

344.71K shares

−344.71K

Strike price

0.35

Held after

0.00

Exercisable

—

7/10/2026

Warrants to Purchase Common Stock

Indirect

A · Award

Converts to

Common Stock, par value $0.0001 per share

344.71K shares

+344.71K

Strike price

0.35

Held after

344.71K

Exercisable

—

7/10/2026

Warrants to Purchase Common Stock

Direct

J · J

Converts to

Common Stock, par value $0.0001 per share

141.46K shares

+141.46K

Strike price

0.35

Held after

141.46K

Exercisable

—

7/10/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Warrants to Purchase Common Stock Indirect	Common Stock, par value $0.0001 per share800K shares	10/16/2025	J · J	+800K	0.6446	—	800K
Series C Convertible Preferred Stock Indirect	Common Stock, par value $0.0001 per share452.22K shares	10/16/2025	J · J	+265.00	0.586	—	265.00
Warrants to Purchase Common Stock Indirect	Common Stock, par value $0.0001 per share92.10K shares	10/31/2025	X · X	−92.10K	0.6446	—	630.34K
Warrants to Purchase Common Stock Indirect	Common Stock, par value $0.0001 per share630.34K shares	7/10/2026	X · X	−630.34K	0.35	—	0.00
Warrants to Purchase Common Stock Indirect	Common Stock, par value $0.0001 per share630.34K shares	7/10/2026	A · Award	+630.34K	0.35	—	630.34K
Warrants to Purchase Common Stock Indirect	Common Stock, par value $0.0001 per share344.71K shares	7/10/2026	X · X	−344.71K	0.35	—	0.00
Warrants to Purchase Common Stock Indirect	Common Stock, par value $0.0001 per share344.71K shares	7/10/2026	A · Award	+344.71K	0.35	—	344.71K
Warrants to Purchase Common Stock Direct	Common Stock, par value $0.0001 per share141.46K shares	7/10/2026	J · J	+141.46K	0.35	—	141.46K

Non-Derivative Holdings (Post-Transaction)6

Common Stock, par value $0.0001 per share

Direct

Shares owned28.26K

Common Stock, par value $0.0001 per share

Indirect

Shares owned1K

Common Stock, par value $0.0001 per share

Indirect

Shares owned6K

Common Stock, par value $0.0001 per share

Indirect

Shares owned6K

Common Stock, par value $0.0001 per share

Indirect

Shares owned26.50K

Common Stock, par value $0.0001 per share

Indirect

Shares owned3K

Total

28.26K direct·42.50K indirect70.76K

Security Title	Shares Owned	Ownership Type
Common Stock, par value $0.0001 per share	28.26K	Direct
Common Stock, par value $0.0001 per share	1K	Indirect
Common Stock, par value $0.0001 per share	6K	Indirect
Common Stock, par value $0.0001 per share	6K	Indirect
Common Stock, par value $0.0001 per share	26.50K	Indirect
Common Stock, par value $0.0001 per share	3K	Indirect
Total	70.76K	28.26K direct·42.50K indirect

Derivative Holdings (Post-Transaction)1

Series C Convertible Preferred Stock

Indirect

Underlying security

Common Stock, par value $0.0001 per share

Underlying shares

172.35K

Shares owned

101.00

Exercise price

0.586

Expiration

—

Exercise window

—

Total

Underlying

172.35K

Owned

101.00

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Series C Convertible Preferred Stock Indirect	Common Stock, par value $0.0001 per share	0.586	—	—	172.35K	101.00
Total					172.35K	101.00