ZWS

SEC source: 0001439288-24-000131 · wk-form4_1723840969.xml · nonDerivative · entry 1

BARTLETT MARK S. · CIK 0001551523 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 144,458

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001104659-25-014897 · tm256928-2_4seq1.xml · nonDerivative · entry 1

Jalazo April · CIK 0002019121 · Former 10% Owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,915,319

F1 · price: Escrow share deposit release from working capital adjustment pursuant to Issuer's merger with Elkay Manufacturing Company on July 1, 2022. (Due to an administrative error, this is being reported currently).

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-25-014898 · tm256928-3_4seq1.xml · nonDerivative · entry 1

Katz Aimee · CIK 0002019124 · Former 10% Owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,915,319

F1 · price: Escrow share deposit release from working capital adjustment pursuant to Issuer's merger with Elkay Manufacturing Company on July 1, 2022. (Due to an administrative error, this is being reported currently).

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-25-014896 · tm256928-1_4seq1.xml · nonDerivative · entry 1

Ice Mountain LLC · CIK 0001938013 · Former 10% Owner

Cascade Bay LLC · CIK 0001937992 · Former 10% Owner

Katz 2004 DYN Trust · CIK 0001938002 · Former 10% Owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,915,319

F1 · price: Escrow share deposit release from working capital adjustment pursuant to Issuer's merger with Elkay Manufacturing Company on July 1, 2022. (Due to an administrative error, this is being reported currently).

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager of Cascade Bay. DYN and Cascade Bay may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain.

SEC source: 0001439288-24-000129 · wk-form4_1723670358.xml · nonDerivative · entry 1

JAHNKE TIMOTHY J · CIK 0001135308 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 400,617

F1 · price: Escrow share deposit release from working capital adjustment pursuant to Issuer's merger with Elkay Manufacturing Company on July 1, 2022.

SEC source: 0001439288-24-000127 · wk-form4_1722630105.xml · nonDerivative · entry 1

JAHNKE TIMOTHY J · CIK 0001135308 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 389,399

F1 · shares: The transactions were executed pursuant to a Rule 10b5-1 plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $33.00 to $33.02. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effectuated.

SEC source: 0001439288-24-000119 · wk-form4_1721166348.xml · nonDerivative · entry 1

CHRISTOPOUL THOMAS · CIK 0001128481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,780

F1 · shares: Payment of director fees in restricted stock units, which vested immediately, but is not paid out until six months after the Reporting Person's cessation of service as a director.

SEC source: 0001439288-24-000118 · wk-form4_1721166337.xml · nonDerivative · entry 1

Troy Peggy · CIK 0001776483 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,326

F1 · kind: Payment of director fees in restricted stock units, which vested immediately, but is not paid out until six months after the Reporting Person's cessation of service as a director.

SEC source: 0001439288-24-000117 · wk-form4_1721166325.xml · nonDerivative · entry 1

MOORE GEORGE C · CIK 0001254124 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,046

F1 · kind: Payment of director fees in restricted stock units, which vested immediately, but is not paid out until six months after the Reporting Person's cessation of service as a director.

SEC source: 0001439288-24-000116 · wk-form4_1721166312.xml · nonDerivative · entry 1

Schooler Rosemary · CIK 0001763187 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,645

F1 · kind: Payment of director fees in restricted stock units, which vested immediately, but is not paid out until six months after the Reporting Person's cessation of service as a director.

SEC source: 0001439288-24-000115 · wk-form4_1721166301.xml · nonDerivative · entry 1

Longren David C. · CIK 0001418238 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,419

F1 · kind: Payment of director fees in restricted stock units, which vested immediately, but is not paid out until six months after the Reporting Person's cessation of service as a director.

SEC source: 0001439288-24-000109 · wk-form4_1720815697.xml · nonDerivative · entry 1

Pauli David J · CIK 0002029701 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,779

F1 · shares: Shares were withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

F1 · price: Shares were withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

SEC source: 0001104659-24-078106 · tm2418969-2_4seq1.xml · nonDerivative · entry 1

Jalazo April · CIK 0002019121 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,454,164

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.13, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-078107 · tm2418969-3_4seq1.xml · nonDerivative · entry 1

Katz Aimee · CIK 0002019124 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,454,164

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.13, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-078105 · tm2418969-1_4seq1.xml · nonDerivative · entry 1

Ice Mountain LLC · CIK 0001938013 · 10% owner

Cascade Bay LLC · CIK 0001937992 · 10% owner

Katz 2004 DYN Trust · CIK 0001938002 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,454,164

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.13, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager of Cascade Bay. DYN and Cascade Bay may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain.

SEC source: 0001104659-24-077821 · tm2418864-2_4seq1.xml · nonDerivative · entry 1

Jalazo April · CIK 0002019121 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,565,924

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.27, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-077824 · tm2418864-3_4seq1.xml · nonDerivative · entry 1

Katz Aimee · CIK 0002019124 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,565,924

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.27, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-077820 · tm2418864-1_4seq1.xml · nonDerivative · entry 1

Ice Mountain LLC · CIK 0001938013 · 10% owner

Cascade Bay LLC · CIK 0001937992 · 10% owner

Katz 2004 DYN Trust · CIK 0001938002 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,565,924

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.27, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager of Cascade Bay. DYN and Cascade Bay may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain.

SEC source: 0001104659-24-077410 · tm2418748-2_4seq1.xml · nonDerivative · entry 1

Jalazo April · CIK 0002019121 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,574,164

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.21, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-077412 · tm2418748-3_4seq1.xml · nonDerivative · entry 1

Katz Aimee · CIK 0002019124 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,574,164

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.21, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-077407 · tm2418748-1_4seq1.xml · nonDerivative · entry 1

Ice Mountain LLC · CIK 0001938013 · 10% owner

Cascade Bay LLC · CIK 0001937992 · 10% owner

Katz 2004 DYN Trust · CIK 0001938002 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,574,164

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.21, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager of Cascade Bay. DYN and Cascade Bay may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain.

SEC source: 0001104659-24-074783 · tm2418184-3_4seq1.xml · nonDerivative · entry 1

Jalazo April · CIK 0002019121 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,674,164

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.40 to $30.42, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-074781 · tm2418184-2_4seq1.xml · nonDerivative · entry 1

Katz Aimee · CIK 0002019124 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,674,164

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.40 to $30.42, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-074780 · tm2418184-1_4seq1.xml · nonDerivative · entry 1

Ice Mountain LLC · CIK 0001938013 · 10% owner

Cascade Bay LLC · CIK 0001937992 · 10% owner

Katz 2004 DYN Trust · CIK 0001938002 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,674,164

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.40 to $30.42, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager of Cascade Bay. DYN and Cascade Bay may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain.

SEC source: 0001104659-24-074448 · tm2418091-2_4seq1.xml · nonDerivative · entry 1

Jalazo April · CIK 0002019121 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,682,793

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.40 to $30.51, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-074447 · tm2418091-1_4seq1.xml · nonDerivative · entry 1

Katz Aimee · CIK 0002019124 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,682,793

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.40 to $30.51, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-074449 · tm2418091-3_4seq1.xml · nonDerivative · entry 1

Ice Mountain LLC · CIK 0001938013 · 10% owner

Cascade Bay LLC · CIK 0001937992 · 10% owner

Katz 2004 DYN Trust · CIK 0001938002 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,682,793

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.40 to $30.51, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager of Cascade Bay. DYN and Cascade Bay may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain.

SEC source: 0001104659-24-073632 · tm2417714-2_4seq1.xml · nonDerivative · entry 1

Jalazo April · CIK 0002019121 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,719,731

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.40 to $30.85, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-073630 · tm2417714-1_4seq1.xml · nonDerivative · entry 1

Katz Aimee · CIK 0002019124 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,719,731

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.40 to $30.85, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-073635 · tm2417714-3_4seq1.xml · nonDerivative · entry 1

Ice Mountain LLC · CIK 0001938013 · 10% owner

Cascade Bay LLC · CIK 0001937992 · 10% owner

Katz 2004 DYN Trust · CIK 0001938002 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,719,731

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.40 to $30.85, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager of Cascade Bay. DYN and Cascade Bay may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain.

SEC source: 0001104659-24-072326 · tm2417415-1_4seq1.xml · nonDerivative · entry 1

Jalazo April · CIK 0002019121 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,874,164

F1 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F1 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-072327 · tm2417415-2_4seq1.xml · nonDerivative · entry 1

Katz Aimee · CIK 0002019124 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,874,164

F1 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F1 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-072328 · tm2417415-3_4seq1.xml · nonDerivative · entry 1

Ice Mountain LLC · CIK 0001938013 · 10% owner

Cascade Bay LLC · CIK 0001937992 · 10% owner

Katz 2004 DYN Trust · CIK 0001938002 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,874,164

F1 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager of Cascade Bay. DYN and Cascade Bay may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain.

SEC source: 0001104659-24-071788 · tm2417331-2_4seq1.xml · nonDerivative · entry 1

Jalazo April · CIK 0002019121 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,874,851

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.25 to $31.74, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-071786 · tm2417331-1_4seq1.xml · nonDerivative · entry 1

Katz Aimee · CIK 0002019124 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,874,851

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.25 to $31.74, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-071790 · tm2417331-3_4seq1.xml · nonDerivative · entry 1

Ice Mountain LLC · CIK 0001938013 · 10% owner

Cascade Bay LLC · CIK 0001937992 · 10% owner

Katz 2004 DYN Trust · CIK 0001938002 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,874,851

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.25 to $31.74, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager of Cascade Bay. DYN and Cascade Bay may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain.

SEC source: 0001104659-24-070899 · tm2416983-2_4seq1.xml · nonDerivative · entry 1

Jalazo April · CIK 0002019121 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 24,068,932

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.00 to $30.18, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-070897 · tm2416983-1_4seq1.xml · nonDerivative · entry 1

Katz Aimee · CIK 0002019124 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 24,068,932

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.00 to $30.18, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-070901 · tm2416983-3_4seq1.xml · nonDerivative · entry 1

Ice Mountain LLC · CIK 0001938013 · 10% owner

Cascade Bay LLC · CIK 0001937992 · 10% owner

Katz 2004 DYN Trust · CIK 0001938002 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,068,932

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.00 to $30.18, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager of Cascade Bay. DYN and Cascade Bay may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain.

SEC source: 0001439288-24-000099 · wk-form4_1717452434.xml · nonDerivative · entry 1

JAHNKE TIMOTHY J · CIK 0001135308 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 393,485

F1 · shares: Gift to an irrevocable trust. The reporting person's spouse is trustee of the trust. The reporting person disclaims beneficial ownership of these securities, and the filing of this report is not an admission that the reporting person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.

SEC source: 0001104659-24-066108 · tm2415807-2_4seq1.xml · nonDerivative · entry 1

Jalazo April · CIK 0002019121 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 24,168,932

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.00 to $32.04, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-066105 · tm2415807-1_4aseq1.xml · nonDerivative · entry 1

Katz Aimee · CIK 0002019124 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 24,168,932

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.00 to $32.04, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-066110 · tm2415807-3_4seq1.xml · nonDerivative · entry 1

Ice Mountain LLC · CIK 0001938013 · 10% owner

Cascade Bay LLC · CIK 0001937992 · 10% owner

Katz 2004 DYN Trust · CIK 0001938002 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,168,932

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.00 to $32.04, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager of Cascade Bay. DYN and Cascade Bay may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain.

SEC source: 0001104659-24-065625 · tm2415570-2_4seq1.xml · nonDerivative · entry 1

Jalazo April · CIK 0002019121 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 24,215,312

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.00 to $32.13, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-065624 · tm2415570-1_4seq1.xml · nonDerivative · entry 1

Katz Aimee · CIK 0002019124 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 24,215,312

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.00 to $32.13, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-065626 · tm2415570-3_4seq1.xml · nonDerivative · entry 1

Ice Mountain LLC · CIK 0001938013 · 10% owner

Cascade Bay LLC · CIK 0001937992 · 10% owner

Katz 2004 DYN Trust · CIK 0001938002 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,215,312

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.00 to $32.13, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager of Cascade Bay. DYN and Cascade Bay may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain.

SEC source: 0001104659-24-064743 · tm2415429-2_4seq1.xml · nonDerivative · entry 1

Jalazo April · CIK 0002019121 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 24,220,544

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.91 to $32.98, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. April Jalazo is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, April Jalazo may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. April Jalazo disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-064739 · tm2415429-1_4seq1.xml · nonDerivative · entry 1

Katz Aimee · CIK 0002019124 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 24,220,544

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.91 to $32.98, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

F2 · ownership.nature: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager with the power to direct Cascade Bay. Aimee Katz is a seat holder on the voting committee of DYN with the power to direct DYN. Therefore, Aimee Katz may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain. Aimee Katz disclaims beneficial interest of the shares of Common Stock directly held by Ice Mountain except to the extent of her pecuniary interest therein.

SEC source: 0001104659-24-064744 · tm2415429-3_4seq1.xml · nonDerivative · entry 1

Ice Mountain LLC · CIK 0001938013 · 10% owner

Cascade Bay LLC · CIK 0001937992 · 10% owner

Katz 2004 DYN Trust · CIK 0001938002 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,220,544

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.91 to $32.98, inclusive. The reporting person undertakes to provide to Zurn Elkay Water Solutions Corporation, any security holder of Zurn Elkay Water Solutions Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Shares of Common Stock are directly held by Ice Mountain LLC ("Ice Mountain"). Cascade Bay LLC ("Cascade Bay") is the manager and sole Class A Member of Ice Mountain. The Katz 2004 DYN Trust ("DYN") is the Special Assets Manager of Cascade Bay. DYN and Cascade Bay may be deemed to beneficially own the shares of Common Stock directly held by Ice Mountain.

SEC source: 0001439288-24-000090 · wk-form4_1716581787.xml · nonDerivative · entry 1

JAHNKE TIMOTHY J · CIK 0001135308 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 593,485

F1 · shares: The transactions were executed pursuant to a Rule 10b5-1 plan.