HSDT

Helius Medical Technologies, INC.

Insider trading activity for Helius Medical Technologies, INC., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 12 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Transaction history

The 32 most recent Form 4 transactions.

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Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Aug 21	Tjandrasuwita Agustina…	See Remarks	AGRANT◆	88,817	—	—	—	Open the original filing on SEC.gov
Jul 31	Chee Choon Wee	CEO and President	AGRANT◆	923,000	—	—	—	Open the original filing on SEC.gov
Jun 2	Jiang Cosmo Yi	Director	MEXER◆	1M	—	—	—	Open the original filing on SEC.gov
Jun 2	Jiang Cosmo Yi	Director	FTAX	610	$1.65	$1K	<0.1%	Open the original filing on SEC.gov
Jun 2	Jiang Cosmo Yi	Director	MEXER	1M	$0.001	$1K	—	Open the original filing on SEC.gov
May 21	Walter Blane	Director	AGRANT◆	18,564	—	—	—	Open the original filing on SEC.gov
May 21	Walter Blane	Director	AGRANT	6,360	—	—	+291.5%	Open the original filing on SEC.gov
May 21	Straw Edward M	Director	AGRANT◆	18,564	—	—	—	Open the original filing on SEC.gov
May 21	Straw Edward M	Director	AGRANT	6,360	—	—	+291.5%	Open the original filing on SEC.gov
May 21	Mello Sergio	Director	AGRANT◆	18,564	—	—	—	Open the original filing on SEC.gov
May 21	Mello Sergio	Director	AGRANT	6,360	—	—	—	Open the original filing on SEC.gov
May 21	Lee Michel Kai Tai	Director	AGRANT◆	18,564	—	—	—	Open the original filing on SEC.gov
May 21	Lee Michel Kai Tai	Director	AGRANT	6,360	—	—	—	Open the original filing on SEC.gov
May 11	Chee Choon Wee	Executive Chairman	MEXER◆	1.1M	—	—	—	Open the original filing on SEC.gov
May 11	Chee Choon Wee	Executive Chairman	MEXER	1.1M	—	—	—	Open the original filing on SEC.gov
May 11	Fusion Summer Ltd	10% Owner	JOTHER	1.5M	—	—	-21.3%	Open the original filing on SEC.gov
May 11	Summer Wisdom Holdings…	10% Owner	JOTHER	1.5M	—	—	-21.3%	Open the original filing on SEC.gov
Mar 31	Perkins Sherrie L	Director	AGRANT◆	23,529	—	—	—	Open the original filing on SEC.gov
Mar 31	Perkins Sherrie L	Director	AGRANT	2,180	—	—	+2.4%	Open the original filing on SEC.gov
Mar 31	Buckman Paul	Director	AGRANT◆	23,529	—	—	—	Open the original filing on SEC.gov
Mar 31	Buckman Paul	Director	AGRANT	2,180	—	—	+2.4%	Open the original filing on SEC.gov
Mar 31	Walter Blane	Director	AGRANT↺	2,180	—	—	+109,000%	Open the original filing on SEC.gov
Mar 31	Straw Edward M	Director	AGRANT↺	2,180	—	—	+109,000%	Open the original filing on SEC.gov
Sep 18, 2025	Chee Choon Wee	Executive Chairman	AGRANT◆	2.2M	—	—	—	Open the original filing on SEC.gov
Sep 18, 2025	Jiang Cosmo Yi	Director	AGRANT◆	1M	—	—	—	Open the original filing on SEC.gov
Jul 2, 2025	Mathiesen Jeffrey S	CFO and Treasurer	AGRANT◆	26,200	—	—	—	Open the original filing on SEC.gov
Jul 2, 2025	Walter Blane	Director	AGRANT◆	2,600	—	—	—	Open the original filing on SEC.gov
Jul 2, 2025	Straw Edward M	Director	AGRANT◆	2,600	—	—	—	Open the original filing on SEC.gov
Jul 2, 2025	Perkins Sherrie L	Director	AGRANT◆	2,600	—	—	—	Open the original filing on SEC.gov
Jul 2, 2025	Favit-Van Pelt Antonella…	Chief Medical Officer	AGRANT◆	17,500	—	—	—	Open the original filing on SEC.gov
Jul 2, 2025	Buckman Paul	Director	AGRANT◆	2,600	—	—	—	Open the original filing on SEC.gov
Jul 2, 2025	Andreeff Dane	President and CEO	AGRANT◆	52,400	—	—	—	Open the original filing on SEC.gov

AGRANT◆—

Tjandrasuwita Agustina… · See RemarksAug 21

88,817 sh

AGRANT◆—

Chee Choon Wee · CEO and PresidentJul 31

923,000 sh

MEXER◆—

Jiang Cosmo Yi · DirectorJun 2

1M sh

FTAX$1K

Jiang Cosmo Yi · DirectorJun 2

610 sh @ $1.65 · <0.1% own

MEXER$1K

Jiang Cosmo Yi · DirectorJun 2

1M sh @ $0.001

AGRANT◆—

Walter Blane · DirectorMay 21

18,564 sh

AGRANT—

Walter Blane · DirectorMay 21

6,360 sh · +291.5% own

AGRANT◆—

Straw Edward M · DirectorMay 21

18,564 sh

AGRANT—

Straw Edward M · DirectorMay 21

6,360 sh · +291.5% own

AGRANT◆—

Mello Sergio · DirectorMay 21

18,564 sh

AGRANT—

Mello Sergio · DirectorMay 21

6,360 sh

AGRANT◆—

Lee Michel Kai Tai · DirectorMay 21

18,564 sh

AGRANT—

Lee Michel Kai Tai · DirectorMay 21

6,360 sh

MEXER◆—

Chee Choon Wee · Executive ChairmanMay 11

1.1M sh

MEXER—

Chee Choon Wee · Executive ChairmanMay 11

1.1M sh

JOTHER—

Fusion Summer Ltd · 10% OwnerMay 11

1.5M sh · -21.3% own

JOTHER—

Summer Wisdom Holdings… · 10% OwnerMay 11

1.5M sh · -21.3% own

AGRANT◆—

Perkins Sherrie L · DirectorMar 31

23,529 sh

AGRANT—

Perkins Sherrie L · DirectorMar 31

2,180 sh · +2.4% own

AGRANT◆—

Buckman Paul · DirectorMar 31

23,529 sh

AGRANT—

Buckman Paul · DirectorMar 31

2,180 sh · +2.4% own

AGRANT↺—

Walter Blane · DirectorMar 31

2,180 sh · +109,000% own

AGRANT↺—

Straw Edward M · DirectorMar 31

2,180 sh · +109,000% own

AGRANT◆—

Chee Choon Wee · Executive ChairmanSep 18, 2025

2.2M sh

AGRANT◆—

Jiang Cosmo Yi · DirectorSep 18, 2025

1M sh

AGRANT◆—

Mathiesen Jeffrey S · CFO and TreasurerJul 2, 2025

26,200 sh

AGRANT◆—

Walter Blane · DirectorJul 2, 2025

2,600 sh

AGRANT◆—

Straw Edward M · DirectorJul 2, 2025

2,600 sh

AGRANT◆—

Perkins Sherrie L · DirectorJul 2, 2025

2,600 sh

AGRANT◆—

Favit-Van Pelt Antonella… · Chief Medical…Jul 2, 2025

17,500 sh

AGRANT◆—

Buckman Paul · DirectorJul 2, 2025

2,600 sh

AGRANT◆—

Andreeff Dane · President and CEOJul 2, 2025

52,400 sh

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

4 of 20 filings we hold were filed after the two-business-day deadline. The furthest past the deadline was 174 business days late.

Form 4 filings made after the two-business-day deadline, with the transaction date, the filing date and the number of business days between them.
Traded	Filed	Insider	Past deadline	Largest line	Source
Sep 18, 2025	Jun 3	Jiang Cosmo YiDirector	174days · about 8 months	—	Filing ↗
Sep 18, 2025	May 12	Chee Choon WeeExecutive Chairman	159days · about 8 months	—	Filing ↗
May 11	Jul 12	Summer Wisdom Holdings Ltd10% Owner	39days · about 2 months	—	Filing ↗
May 11	May 21	Fusion Summer Ltd10% Owner	6days	—	Filing ↗

Jiang Cosmo YiDirector

174days · about 8 months

Traded Sep 18, 2025 · filed Jun 3Filing ↗

Chee Choon WeeExecutive Chairman

159days · about 8 months

Traded Sep 18, 2025 · filed May 12Filing ↗

Summer Wisdom Holdings Ltd10% Owner

39days · about 2 months

Traded May 11 · filed Jul 12Filing ↗

Fusion Summer Ltd10% Owner

6days

Traded May 11 · filed May 21Filing ↗

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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