WMS

SEC source: 0000899243-22-026663 · doc4.xml · nonDerivative · entry 1

NELSON CARL A JR · CIK 0001229316 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,545

SEC source: 0000899243-22-026671 · doc4.xml · nonDerivative · entry 1

PEREZ DE LA MESA MANUEL J · CIK 0001230654 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,493

SEC source: 0000899243-22-026675 · doc4.xml · nonDerivative · entry 1

CHAIBI ANESA · CIK 0001579752 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,475

SEC source: 0000899243-22-026666 · doc4.xml · nonDerivative · entry 1

Haney Mark · CIK 0001582073 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,083

SEC source: 0000899243-22-026679 · doc4.xml · nonDerivative · entry 1

FISCHER ALEXANDER R · CIK 0001614401 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,453

SEC source: 0000899243-22-026677 · doc4.xml · nonDerivative · entry 1

FRATTO TANYA D · CIK 0001614408 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,329

SEC source: 0000899243-22-026665 · doc4.xml · nonDerivative · entry 1

EVERSOLE ROBERT M · CIK 0001614400 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,536

SEC source: 0000899243-22-026674 · doc4.xml · nonDerivative · entry 1

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,969

SEC source: 0000899243-22-026664 · doc4.xml · nonDerivative · entry 1

GAST KELLY S. · CIK 0001936542 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,453

SEC source: 0000899243-22-022911 · doc4.xml · derivative · entry 5

TALLEY KEVIN C · CIK 0001682214 · EVP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 46,972 shares

Expires 2023-03-31

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.

F4 · derivative.exercise_date: The option vested in five equal annual installments beginning on September 1, 2014.

SEC source: 0000899243-22-022911 · doc4.xml · nonDerivative · entry 3

TALLEY KEVIN C · CIK 0001682214 · EVP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,025

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $90.70 to $91.39, inclusive. The reporting person undertakes to provide to Advanced Drainage Systems, Inc., any security holder of Advanced Drainage Systems, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (2) to this Form 4.

SEC source: 0000899243-22-022911 · doc4.xml · nonDerivative · entry 2

TALLEY KEVIN C · CIK 0001682214 · EVP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 71,784

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.695 to $90.69, inclusive. The reporting person undertakes to provide to Advanced Drainage Systems, Inc., any security holder of Advanced Drainage Systems, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0000899243-22-022911 · doc4.xml · nonDerivative · entry 1

TALLEY KEVIN C · CIK 0001682214 · EVP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,525

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: 0000919574-22-003843 · ownership.xml · nonDerivative · entry 4

JONES ROSS M · CIK 0001267629 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,988

F2 · kind: Represents Common Stock received by the Reporting Person as part of the distribution referred to in note (1) above.

SEC source: 0000919574-22-003843 · ownership.xml · nonDerivative · entry 3

JONES ROSS M · CIK 0001267629 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Berkshire Investors IV LLC

Disclosed balance after: 46,580

F1 · kind: Represents a pro rata in kind distribution of the Issuer's Common Stock by certain of the Berkshire Entities (as defined below), as well as BI III and BI IV (each as defined below), to their respective limited partners and members.

F6 · ownership.nature: Represents shares held by Berkshire Investors IV LLC ("BI IV"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003843 · ownership.xml · nonDerivative · entry 2

JONES ROSS M · CIK 0001267629 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Berkshire Investors III LLC

Disclosed balance after: 47,996

F1 · kind: Represents a pro rata in kind distribution of the Issuer's Common Stock by certain of the Berkshire Entities (as defined below), as well as BI III and BI IV (each as defined below), to their respective limited partners and members.

F5 · ownership.nature: Represents shares held by Berkshire Investors III LLC ("BI III"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003843 · ownership.xml · nonDerivative · entry 1

JONES ROSS M · CIK 0001267629 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 5,096,521

F1 · kind: Represents a pro rata in kind distribution of the Issuer's Common Stock by certain of the Berkshire Entities (as defined below), as well as BI III and BI IV (each as defined below), to their respective limited partners and members.

F3 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts (collectively, the "Berkshire Entities"). Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F4 · ownership.nature: (continued from Footnote 3) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003844 · ownership.xml · nonDerivative · entry 6

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 782

F2 · kind: Represents Common Stock received by the Reporting Person and his related trusts as part of the distribution referred to in note (1) above.

SEC source: 0000919574-22-003844 · ownership.xml · nonDerivative · entry 5

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Family Trusts

Disclosed balance after: 450

F2 · kind: Represents Common Stock received by the Reporting Person and his related trusts as part of the distribution referred to in note (1) above.

SEC source: 0000919574-22-003844 · ownership.xml · nonDerivative · entry 4

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,516

F2 · kind: Represents Common Stock received by the Reporting Person and his related trusts as part of the distribution referred to in note (1) above.

SEC source: 0000919574-22-003844 · ownership.xml · nonDerivative · entry 3

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Berkshire Investors IV LLC

Disclosed balance after: 46,580

F1 · kind: Represents a pro rata in kind distribution of the Issuer's Common Stock by certain of the Berkshire Entities (as defined below), as well as BI III and BI IV (each as defined below), to their respective limited partners and members.

F6 · ownership.nature: Represents shares held by Berkshire Investors IV LLC ("BI IV"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003844 · ownership.xml · nonDerivative · entry 2

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Berkshire Investors III LLC

Disclosed balance after: 47,996

F1 · kind: Represents a pro rata in kind distribution of the Issuer's Common Stock by certain of the Berkshire Entities (as defined below), as well as BI III and BI IV (each as defined below), to their respective limited partners and members.

F5 · ownership.nature: Represents shares held by Berkshire Investors III LLC ("BI III"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003844 · ownership.xml · nonDerivative · entry 1

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 5,096,521

F1 · kind: Represents a pro rata in kind distribution of the Issuer's Common Stock by certain of the Berkshire Entities (as defined below), as well as BI III and BI IV (each as defined below), to their respective limited partners and members.

F3 · ownership.nature: Represents shares held directly or indirectly by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts (collectively, the "Berkshire Entities"). Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F4 · ownership.nature: (continued from Footnote 3) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003781 · ownership.xml · nonDerivative · entry 6

JONES ROSS M · CIK 0001267629 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,054,573

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $110.00 to $110.15. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer 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 this footnote.

F2 · ownership.nature: Represents shares held by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts. Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F3 · ownership.nature: (continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003781 · ownership.xml · nonDerivative · entry 5

JONES ROSS M · CIK 0001267629 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,057,633

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $109.00 to $109.9999. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer 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 this footnote.

F2 · ownership.nature: Represents shares held by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts. Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F3 · ownership.nature: (continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003781 · ownership.xml · nonDerivative · entry 4

JONES ROSS M · CIK 0001267629 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,094,166

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $108.00 to $108.9999. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer 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 this footnote.

F2 · ownership.nature: Represents shares held by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts. Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F3 · ownership.nature: (continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003782 · ownership.xml · nonDerivative · entry 6

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,054,573

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $110.00 to $110.15. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer 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 this footnote.

F2 · ownership.nature: Represents shares held by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts. Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F3 · ownership.nature: (continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003782 · ownership.xml · nonDerivative · entry 5

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,057,633

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $109.00 to $109.9999. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer 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 this footnote.

F2 · ownership.nature: Represents shares held by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts. Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F3 · ownership.nature: (continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003782 · ownership.xml · nonDerivative · entry 4

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,094,166

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $108.00 to $108.9999. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer 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 this footnote.

F2 · ownership.nature: Represents shares held by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts. Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F3 · ownership.nature: (continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003781 · ownership.xml · nonDerivative · entry 3

JONES ROSS M · CIK 0001267629 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,163,499

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $112.00 to $112.30. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer 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 this footnote.

F2 · ownership.nature: Represents shares held by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts. Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F3 · ownership.nature: (continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003782 · ownership.xml · nonDerivative · entry 3

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,163,499

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $112.00 to $112.30. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer 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 this footnote.

F2 · ownership.nature: Represents shares held by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts. Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F3 · ownership.nature: (continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003781 · ownership.xml · nonDerivative · entry 2

JONES ROSS M · CIK 0001267629 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,167,265

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $112.71 to $113.588. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer 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 this footnote.

F2 · ownership.nature: Represents shares held by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts. Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F3 · ownership.nature: (continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003781 · ownership.xml · nonDerivative · entry 1

JONES ROSS M · CIK 0001267629 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,220,426

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $111.71 to $112.7099. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer 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 this footnote.

F2 · ownership.nature: Represents shares held by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts. Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F3 · ownership.nature: (continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003782 · ownership.xml · nonDerivative · entry 2

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,167,265

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $112.71 to $113.588. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer 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 this footnote.

F2 · ownership.nature: Represents shares held by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts. Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F3 · ownership.nature: (continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000919574-22-003782 · ownership.xml · nonDerivative · entry 1

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,220,426

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $111.71 to $112.7099. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer 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 this footnote.

F2 · ownership.nature: Represents shares held by Berkshire Fund IX, L.P. ("BF IX"), Berkshire Fund IX-A, L.P. ("BF IX-A"), Stockbridge Fund, L.P. ("SF") and certain other accounts. Ninth Berkshire Associates LLC ("9BA") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC ("SA") is the general partner of SF. Berkshire Partners LLC ("BP") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC ("SP") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of BP and SP.

F3 · ownership.nature: (continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-22-021481 · doc4.xml · nonDerivative · entry 1

HARVEY DARIN S. · CIK 0001756972 · EVP, Supply Chain & Logistics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,600

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $112.08 to $112.95, inclusive. The reporting person undertakes to provide to Advanced Drainage Systems, Inc., any security holder of Advanced Drainage Systems, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0000899243-22-019318 · doc4a.xml · nonDerivative · entry 6

TALLEY KEVIN C · CIK 0001682214 · EVP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,553

SEC source: 0000899243-22-019314 · doc4a.xml · nonDerivative · entry 6

MAKOWSKI TIM A · CIK 0001672236 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,710

SEC source: 0000899243-22-019328 · doc4a.xml · nonDerivative · entry 6

KLEIN ROBERT M · CIK 0001614367 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132,130

SEC source: 0000899243-22-019326 · doc4a.xml · nonDerivative · entry 8

HARVEY DARIN S. · CIK 0001756972 · EVP, Supply Chain & Logistics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,600

SEC source: 0000899243-22-019321 · doc4a.xml · nonDerivative · entry 8

HUEBERT MICHAEL G. · CIK 0001823429 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,062

SEC source: 0000899243-22-019312 · doc4a.xml · nonDerivative · entry 6

BARBOUR D. SCOTT · CIK 0001716232 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,394

SEC source: 0000899243-22-019313 · doc4a.xml · nonDerivative · entry 6

Cottrill Scott A · CIK 0001343378 · EVP, CFO AND SECRETARY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,294

SEC source: 0000899243-22-019318 · doc4a.xml · nonDerivative · entry 5

TALLEY KEVIN C · CIK 0001682214 · EVP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,018

SEC source: 0000899243-22-019318 · doc4a.xml · nonDerivative · entry 4

TALLEY KEVIN C · CIK 0001682214 · EVP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,179

SEC source: 0000899243-22-019314 · doc4a.xml · nonDerivative · entry 5

MAKOWSKI TIM A · CIK 0001672236 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,872

SEC source: 0000899243-22-019314 · doc4a.xml · nonDerivative · entry 4

MAKOWSKI TIM A · CIK 0001672236 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,952

SEC source: 0000899243-22-019313 · doc4a.xml · nonDerivative · entry 5

Cottrill Scott A · CIK 0001343378 · EVP, CFO AND SECRETARY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,310

SEC source: 0000899243-22-019313 · doc4a.xml · nonDerivative · entry 4

Cottrill Scott A · CIK 0001343378 · EVP, CFO AND SECRETARY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,649

SEC source: 0000899243-22-019328 · doc4a.xml · nonDerivative · entry 5

KLEIN ROBERT M · CIK 0001614367 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132,624