SC 13G/A 1 fp0090124-1_sc13ga.htm

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED

PURSUANT TO RULE 13d-2(b)

(AMENDMENT NO. 8)*

ATRION CORP

(Name of Issuer)

Common Stock

(Title of Class of Securities)

049904105

(CUSIP Number)

August 31, 2024

(Date of Event which Requires Filing of this Statement)

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

[X] Rule 13d-1(b)

[ ] Rule 13d-1(c)

[ ] Rule 13d-1(d)

The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No. 049904105

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Page 2 of 5 Pages

1.	NAMES OF REPORTING PERSONS OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Kayne Anderson Rudnick Investment Management, LLC 95-4575414
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 A California Limited Liability Company

NUMBER OF

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON WITH

SOLE VOTING POWER

SHARED VOTING POWER

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

9.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0
10.	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (see instructions) [ ]
11.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.00%
12.	TYPE OF REPORTING PERSON (see instructions) IA

CUSIP No. 049904105

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Item 1.

(a)

Name of Issuer

Atrion Corp

(b)

Address of Issuer’s Principal Executive Offices

One Allentown Parkway, Allen, TX 75002

Item 2.	(a)	Name of Person Filing Kayne Anderson Rudnick Investment Management, LLC

	(b)	Address of the Principal Office or, if none, residence 2000 Avenue of the Stars, Suite 1110, Los Angeles, CA 90067

	(c)	Citizenship A California Limited Liability Company

	(d)	Title of Class of Securities Common Stock

	(e)	CUSIP Number 049904105

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)	[X]	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)	[ ]	Group, in accordance with §240.13d-1(b)(1)(ii)(J).

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Item 4. Ownership.

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

(a)	Amount beneficially owned:		0
(b)	Percent of class:		0.00%
(c)	Number of shares as to which the person has:
	(i)	Sole power to vote or to direct the vote:	0
	(ii)	Shared power to vote or to direct the vote:	0
	(iii)	Sole power to dispose or to direct the disposition of:	0
	(iv)	Shared power to dispose or to direct the disposition of:	0

Item 5. Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [X].

Instruction. Dissolution of a group requires a response to this item.

The reporting person has ceased to be the beneficial owner of more than five percent of the class of securities.

Item 6. Ownership of More than Five Percent on Behalf of Another Person.

N/A

Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company.

N/A

Item 8. Identification and Classification of Members of the Group.

N/A

Item 9. Notice of Dissolution of Group.

N/A

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Item 10. Certification.

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above 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.

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.

	Kayne Anderson Rudnick Investment Management, LLC

	By:	/s/ Michael Shoemaker
	Name:	Michael Shoemaker
	Title:	Chief Compliance Officer
	Date:	September 9, 2024

Amendment: SEC Form SC 13G/A filed by Atrion Corporation