Parian Ultreia reports 5.3% stake in Exagen (NASDAQ: XGN)

Rhea-AI Filing Summary

Exagen, Inc. Schedule 13G: Parian Ultreia reports beneficial ownership of 1,292,000 shares of Exagen, equal to 5.3% of the class, with sole voting and sole dispositive power. The filing lists an address in Telluride, Delaware citizenship for the filer, and is signed by Portfolio Manager Zach Miller on 05/27/2026.

Insights

Institutional Ownership Analyst

Parian Ultreia holds a 5.3% stake with sole voting and dispositive authority.

Parian Ultreia is reported to beneficially own 1,292,000 shares and to hold sole voting and sole dispositive power as of 05/22/2026. The filing is a passive disclosure under Schedule 13G and indicates an institutional-scale stake.

The practical implications depend on the holder's intentions and any future filings; subsequent changes in position would be disclosed by amendment or a different form. Cash-flow treatment or planned transactions are not stated in the excerpt.

Key Figures

Shares beneficially owned: 1,292,000 shares Percent of class: 5.3% Sole voting/dispositive power: 1,292,000 shares

3 metrics

Shares beneficially owned 1,292,000 shares Schedule 13G filing dated 05/22/2026

Percent of class 5.3% Percent of class as reported on Schedule 13G

Sole voting/dispositive power 1,292,000 shares Sole voting and sole dispositive power reported in Item 4

Key Terms

Schedule 13G, beneficially owned, sole dispositive power

3 terms

Schedule 13G regulatory

"Item 1. (a) Name of issuer: EXAGEN INC.; header identifies form as Schedule 13G"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

beneficially owned regulatory

"Item 4. (a) Amount beneficially owned: 1,292,000"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole dispositive power regulatory

"Item 4. (iii) Sole power to dispose or to direct the disposition of: 1,292,000"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

EXAGEN INC.

(Name of Issuer)

Exagen, Inc.

(Title of Class of Securities)

30068X103

(CUSIP Number)

05/22/2026

(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): 30068X103

1

Names of Reporting Persons

Parian Ultreia LP

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 1,292,000.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,292,000.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,292,000.00

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)

5.3 %

12

Type of Reporting Person (See Instructions)

PN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: EXAGEN INC.
(b)	Address of issuer's principal executive offices: 1261 LIBERTY WAY, VISTA, CALIFORNIA, 92081
Item 2.
(a)	Name of person filing: Parian Ultreia LP
(b)	Address or principal business office or, if none, residence: PO Box 2613 Telluride, CO 81435
(c)	Citizenship: Delaware
(d)	Title of class of securities: Exagen, Inc.
(e)	CUSIP Number(s): 30068X103
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: 1,292,000
(b)	Percent of class: 5.3%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1,292,000
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1,292,000
	(iv) Shared power to dispose or to direct the disposition of: 0
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:
	Not Applicable

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.

Parian Ultreia LP

Signature:	Zach Miller
Name/Title:	Portfolio Manager
Date:	05/27/2026

FAQ

What ownership stake did Parian Ultreia report in EXAGEN (XGN)?

Parian Ultreia reported ownership of 1,292,000 shares, representing 5.3% of Exagen's class. The Schedule 13G lists sole voting and sole dispositive power and is signed by Portfolio Manager Zach Miller on 05/27/2026.

Does the filing indicate who signed the Schedule 13G for Parian Ultreia?

Yes. The Schedule 13G is signed by Zach Miller, identified as Portfolio Manager. The signature date in the filing is 05/27/2026, matching the document's certifications section.

What type of SEC filing was submitted to report this holding?

A Schedule 13G was filed to report passive institutional ownership of Exagen shares. Schedule 13G is used by qualifying institutional investors to disclose beneficial ownership levels.

How much voting and dispositive power does Parian Ultreia have over the shares?

The filing lists sole voting power of 1,292,000 shares and sole dispositive power of 1,292,000 shares. Shared voting or dispositive power is reported as zero in the filing.

Where is the filer Parian Ultreia organized or domiciled?

The filing states Parian Ultreia's citizenship or place of organization as Delaware. The Schedule 13G includes a mailing address for the filer in Telluride, Colorado.