TriSalus (TLSI) 13G/A: First Light reports 6.6M shares

TriSalus Life Sciences, Inc. filing amends a prior Schedule 13G to report that First Light Asset Management, LLC and Mathew P. Arens each may be deemed beneficial owners of 6,596,242 shares of common stock, representing 10.74% of the class.

Rhea-AI Filing Summary

TriSalus Life Sciences, Inc. filing amends a prior Schedule 13G to report that First Light Asset Management, LLC and Mathew P. Arens each may be deemed beneficial owners of 6,596,242 shares of common stock, representing 10.74% of the class. The filing is a joint statement and is signed on 07/07/2026.

Insights

Institutional Ownership Analyst

Large passive stake disclosed: 6.6M shares (10.74%) held jointly by an asset manager and its principal.

The filing records that First Light Asset Management, LLC and Mathew P. Arens are joint reporting persons with shared voting and dispositive power over 6,596,242 shares. The statement cites the Manager's advisory relationship to separately managed accounts and private funds as the basis for beneficial attribution.

Disclosure shows shared control rather than sole control; subsequent filings would clarify any changes in voting or disposition. The filing is dated 07/07/2026.

Corporate Governance Specialist

Joint filing and attribution explained: manager-client relationships and managerial control of the adviser are cited as the basis for attribution.

The statement notes that the Manager "acts as an investment adviser" to accounts and private funds and that Mr. Arens "controls the Manager" as managing member and majority owner. Those clauses are the explicit bases for the reported beneficial ownership.

Signatures include the Manager's Chief Compliance Officer and Mr. Arens on 07/07/2026. Future amendments could change the reported percentage if holdings change.

Key Figures

Shares beneficially owned: 6,596,242 shares Percent of class: 10.74% CUSIP: 89680M101 +2 more

5 metrics

Shares beneficially owned 6,596,242 shares Amount reported for First Light Asset Management, LLC and Mathew P. Arens

Percent of class 10.74% Percent of common stock reported in Item 4

CUSIP 89680M101 Common Stock CUSIP shown on the cover

Signature date 07/07/2026 Date signed by reporting persons

Shared voting/dispositive power 6,596,242 shares Shared voting and dispositive power reported in Item 4(c)(ii)/(iv)

Key Terms

Beneficial owner, Shared dispositive power, Joint Filing Agreement

3 terms

Beneficial owner regulatory

"The Manager may be deemed to be the beneficial owner of 6,596,242 of the Issuer's shares"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

Shared dispositive power regulatory

"Shared Dispositive Power 6,596,242.00"

Joint Filing Agreement regulatory

"Exhibit A: Joint Filing Agreement"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does First Light Asset Management report in TLSI?

First Light Asset Management reports beneficial ownership of 6,596,242 shares of TLSI common stock, equal to 10.74% of the class. The filing attributes ownership to the Manager's advisory roles for separately managed accounts and certain private funds.

Why is Mathew P. Arens listed on the TLSI 13G/A?

Mr. Arens is listed because he is the managing member and majority owner of the Manager and therefore may be deemed a beneficial owner of the same 6,596,242 shares. The filing states he "controls the Manager."

When was the TLSI Schedule 13G/A signed and filed?

The joint Schedule 13G/A is signed by the reporting persons on 07/07/2026. The cover references 06/30/2026 in the header area; signatures certify the joint filing executed on the July date.

What voting and dispositive powers are reported for TLSI holdings?

Both reporting persons report 0 sole voting and dispositive power and 6,596,242 shared voting and dispositive power. The filing lists shared powers as the basis for the reported beneficial ownership and percentage.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 07/07/2026 - 04:39 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

TriSalus Life Sciences, Inc.

(Name of Issuer)

Common Stock, $0.01 par value

(Title of Class of Securities)

89680M101

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 89680M101

1

Names of Reporting Persons

First Light Asset Management, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 6,596,242.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 6,596,242.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,596,242.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

10.74 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 89680M101

1

Names of Reporting Persons

Mathew P. Arens

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 6,596,242.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 6,596,242.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,596,242.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

10.74 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: TriSalus Life Sciences, Inc.
(b)	Address of issuer's principal executive offices: 6272 W. 91st Ave., Westminster, CO 80031
Item 2.
(a)	Name of person filing: This Schedule 13G is jointly filed by the following: First Light Asset Management, LLC (the "Manager") Mathew P. Arens ("Mr. Arens") The Manager may be deemed to be the beneficial owner of 6,596,242 of the Issuer's shares of common stock (the "Shares"). The Manager acts as an investment adviser to certain persons holding separately managed accounts with the Manager, each of whom has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, those shares. The Manager may also be deemed to be the beneficial owner of these shares because it acts as an investment adviser to certain private funds. Mr. Arens may also be deemed to be the beneficial owner of these shares because he controls the Manager in his position as managing member and majority owner of the Manager. The Manager and Mr. Arens are filing this Schedule 13G/A with respect to these Shares pursuant to Rule 13d-1(b) under the Act. The Manager and Mr. Arens may be deemed to be the beneficial owner of the total amount of Shares set forth across from its or his respective name in Item 4 below. The filing of this Schedule 13G shall not be construed as an admission that the reporting persons or any of their affiliates are the beneficial owner of any securities covered by this Schedule 13G for any other purposes other than Section 13(d) of the Securities Exchange Act of 1934.
(b)	Address or principal business office or, if none, residence: Each of the reporting persons identified in Item 2(a) has its principal business office at: 3300 Edinborough Way, Suite 201, Edina, MN 55435
(c)	Citizenship: First Light Asset Management, LLC - Delaware limited liability company Mathew P. Arens - United States citizen
(d)	Title of class of securities: Common Stock, $0.01 par value
(e)	CUSIP No.: 89680M101
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: First Light Asset Management, LLC - 6,596,242 Mathew P. Arens - 6,596,242
(b)	Percent of class: First Light Asset Management, LLC - 10.74% Mathew P. Arens - 10.74%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: First Light Asset Management, LLC - 0 Mathew P. Arens - 0
	(ii) Shared power to vote or to direct the vote: First Light Asset Management, LLC - 6,596,242 Mathew P. Arens - 6,596,242
	(iii) Sole power to dispose or to direct the disposition of: First Light Asset Management, LLC - 0 Mathew P. Arens - 0
	(iv) Shared power to dispose or to direct the disposition of: First Light Asset Management, LLC - 6,596,242 Mathew P. Arens - 6,596,242
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

First Light Asset Management, LLC

Signature:	/s/ Kurt T. Peterson
Name/Title:	Kurt T. Peterson/Chief Compliance Officer
Date:	07/07/2026

Mathew P. Arens

Signature:	/s/ Mathew P. Arens
Name/Title:	Mathew P. Arens/Chief Executive Officer
Date:	07/07/2026

Exhibit Information

Exhibit A: Joint Filing Agreement