Nikki Vaughan Maczko - 05 Mar 2026 Form 4 Insider Report for Latham Group, Inc. (SWIM)

Role: Chief Human Resources Officer
Signature: /s/ Patrick M. Sheller, Attorney-in-Fact
Issuer symbol: SWIM
Transactions as of: 05 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 09 Mar 2026, 15:29:56 UTC
Previous filing: 21 May 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Maczko Nikki Vaughan	Chief Human Resources Officer	C/O LATHAM GROUP, INC., 787 WATERVLIET SHAKER ROAD, LATHAM	/s/ Patrick M. Sheller, Attorney-in-Fact	09 Mar 2026	0002022250

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SWIM	Common stock, par value $0.0001 per share	Award		+5,436	+6%	$0.000000^*	96,226	05 Mar 2026	Direct	F1
transaction	SWIM	Common stock, par value $0.0001 per share	Award		+28,175	+29%	$0.000000^*	124,401	06 Mar 2026	Direct	F2
transaction	SWIM	Common stock, par value $0.0001 per share	Tax liability		-2,877	-2.3%	$6.30^*	121,524	07 Mar 2026	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Indicates performance stock units ("PSUs") earned over a one year performance period as granted on March 7, 2025 under the Issuer's 2021 Omnibus Equity Incentive Plan. The PSUs will vest on March 7, 2028.
F2	Represents restricted stock units granted on March 6, 2026. 9,391 shares will vest on each of March 6, 2027 and 2028. 9,393 shares will vest on March 6, 2029.