PERCEPTIVE ADVISORS LLC - 31 Mar 2026 SCHEDULE 13G/A Report for Tenax Therapeutics, Inc. Common Stock, $0.0001 par value per share (TENX)

Filing manager: PERCEPTIVE ADVISORS LLC
Reporting owner: Perceptive Advisors LLC
Security: Tenax Therapeutics, Inc. Common Stock, $0.0001 par value per share
Beneficially owned shares: 1,447,782 shares
Large-stake signal: Form
SCHEDULE 13G/A
Passive or exempt beneficial ownership filing.
Ownership
5.5%
Beneficial ownership of this reported class.
Shares
1,447,782 shares
Shares beneficially owned as disclosed.
Event date
31 Mar 2026
Date tied to the ownership event or amendment.
Accepted by SEC
15 May 2026
EDGAR acceptance date.
How to read this large-stake filing
Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
Compare this filing with the holder history and issuer page before treating the percentage as a current position.
Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Class ownership: 5.5%
Symbol: TENX
Shares outstanding: 26,323,309 shares
SEC form: SCHEDULE 13G/A
Accepted by SEC: 15 May 2026, 16:00:02 UTC
Event date: 31 Mar 2026
Prior SEC filing: 17 Feb 2026
Source filing: View source filing

Key filing fact

PERCEPTIVE ADVISORS LLC disclosed 5.5% ownership in Tenax Therapeutics, Inc. Common Stock, $0.0001 par value per share (TENX) on 31 Mar 2026.

Key facts

PERCEPTIVE ADVISORS LLC filed SCHEDULE 13G/A for Tenax Therapeutics, Inc. Common Stock, $0.0001 par value per share (TENX).
Disclosed ownership: 5.5%.
Date of event: 31 Mar 2026.

This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

Reporting persons

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name	Ownership	Shares owned	Shared voting power	Signature	Title
Perceptive Advisors LLC	5.5%	1,447,782	1,447,782	/s/ Joseph Edelman	Joseph Edelman, Managing Member
Joseph Edelman	5.5%	1,447,782	1,447,782	/s/ Joseph Edelman	Joseph Edelman
Perceptive Life Sciences Master Fund, Ltd.	5.5%	1,447,782	1,447,782	/s/ Joseph Edelman	Joseph Edelman, Managing Member

CIK / CUSIP context first

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