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Seetharam Anil

Disclosed activity across 1 company

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29444
SEC CIK
0001676191

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Latest disclosed role at each company.

CompanyLast reported asReport datePublished
ADVANCED DRAINAGE SYSTEMS, INC.WMS · Entity 2328DirectorJuly 16, 2026July 20, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

ADVANCED DRAINAGE SYSTEMS, INC.

Report date July 16, 2026 · Filed July 20, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect16,240 Reported balance After 2026-07-16 transaction · row 1
1 source row

Row 1 · 2026-07-16 · Grant · Acquired 1,782 · Balance 16,240

Common StockSEC Table I · non-derivativeIndirectBy Family Trusts1,196 Reported balance Holding disclosure · report date 2026-07-16 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 1,196

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 07, 2022 Filed Sep 9, 2022 20:43 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 226,085 $135.42 $30,616,702.00
Disclosure

SEC source: 0000919574-22-005494 · ownership.xml · nonDerivative · entry 2

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,827,280

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $135.00 to $135.985. The Reporting Person undertakes 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 range set forth in this footnote.

F1 · 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.

F2 · ownership.nature: (continued from Footnote 1) 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.

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September 07, 2022 Filed Sep 9, 2022 20:43 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 73,915 $134.88 $9,969,381.71
Disclosure

SEC source: 0000919574-22-005494 · ownership.xml · nonDerivative · entry 1

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,053,365

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $134.00 to $134.9999. The Reporting Person undertakes 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 range set forth in this footnote.

F1 · 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.

F2 · ownership.nature: (continued from Footnote 1) 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.

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August 16, 2022 Filed Aug 18, 2022 20:46 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 OtherCommon Stock 1,158 $0.00 $0.00
Disclosure

SEC source: 0000919574-22-005179 · ownership.xml · nonDerivative · entry 6

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 1,940

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

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August 16, 2022 Filed Aug 18, 2022 20:46 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 OtherCommon Stock 280 $0.00 $0.00
Disclosure

SEC source: 0000919574-22-005179 · ownership.xml · nonDerivative · entry 5

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Family Trusts

Disclosed balance after: 730

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

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August 16, 2022 Filed Aug 18, 2022 20:46 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 OtherCommon Stock 15,499 $0.00 $0.00
Disclosure

SEC source: 0000919574-22-005179 · ownership.xml · nonDerivative · entry 3

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Berkshire Investors IV LLC

Disclosed balance after: 31,081

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.

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August 16, 2022 Filed Aug 18, 2022 20:46 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 OtherCommon Stock 15,260 $0.00 $0.00
Disclosure

SEC source: 0000919574-22-005179 · ownership.xml · nonDerivative · entry 2

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Berkshire Investors III LLC

Disclosed balance after: 32,736

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.

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August 16, 2022 Filed Aug 18, 2022 20:46 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 OtherCommon Stock 969,241 $0.00 $0.00
Disclosure

SEC source: 0000919574-22-005179 · ownership.xml · nonDerivative · entry 1

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,127,280

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.

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July 21, 2022 Filed Jul 25, 2022 21:50 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 GrantCommon Stock 2,453 $0.00 $0.00
Disclosure

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

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June 10, 2022 Filed Jun 14, 2022 21:20 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 OtherCommon Stock 782 $0.00 $0.00
Disclosure

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.

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June 10, 2022 Filed Jun 14, 2022 21:20 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 OtherCommon Stock 450 $0.00 $0.00
Disclosure

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.

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June 10, 2022 Filed Jun 14, 2022 21:20 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 OtherCommon Stock 709 $0.00 $0.00
Disclosure

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.

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June 10, 2022 Filed Jun 14, 2022 21:20 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 OtherCommon Stock 15,527 $0.00 $0.00
Disclosure

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.

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June 10, 2022 Filed Jun 14, 2022 21:20 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 OtherCommon Stock 15,999 $0.00 $0.00
Disclosure

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.

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June 10, 2022 Filed Jun 14, 2022 21:20 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 OtherCommon Stock 958,052 $0.00 $0.00
Disclosure

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.

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June 09, 2022 Filed Jun 9, 2022 22:39 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 3,060 $110.08 $336,838.99
Disclosure

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.

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June 09, 2022 Filed Jun 9, 2022 22:39 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 36,533 $109.26 $3,991,595.58
Disclosure

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.

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June 09, 2022 Filed Jun 9, 2022 22:39 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 69,333 $108.33 $7,510,635.89
Disclosure

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.

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June 08, 2022 Filed Jun 9, 2022 22:39 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 3,766 $112.15 $422,359.54
Disclosure

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.

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June 07, 2022 Filed Jun 9, 2022 22:39 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 53,161 $113.09 $6,012,136.97
Disclosure

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.

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June 07, 2022 Filed Jun 9, 2022 22:39 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 146,839 $112.21 $16,477,318.13
Disclosure

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.

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December 14, 2021 Filed Dec 16, 2021 21:52 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 10,116 $125.25 $1,267,029.00
Disclosure

SEC source: 0000919574-21-007454 · ownership.xml · nonDerivative · entry 3

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Berkshire Investors IV LLC

Disclosed balance after: 62,107

F4 · 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.

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December 14, 2021 Filed Dec 16, 2021 21:52 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 10,114 $125.25 $1,266,778.50
Disclosure

SEC source: 0000919574-21-007454 · ownership.xml · nonDerivative · entry 2

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Berkshire Investors III LLC

Disclosed balance after: 63,995

F3 · 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.

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December 14, 2021 Filed Dec 16, 2021 21:52 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 729,770 $125.25 $91,403,692.50
Disclosure

SEC source: 0000919574-21-007454 · ownership.xml · nonDerivative · entry 1

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,367,265

F1 · 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"), Stockbridge Absolute Return Fund, L.P. ("SARF") 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 and SARF. 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, SARF 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.

F2 · ownership.nature: (continued from Footnote 1) 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, SARF 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.

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November 11, 2021 Filed Nov 15, 2021 16:35 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 9,960 $126.79 $1,262,828.40
Disclosure

SEC source: 0000919574-21-007033 · ownership.xml · nonDerivative · entry 3

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Berkshire Investors IV LLC

Disclosed balance after: 72,223

F4 · 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.

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November 11, 2021 Filed Nov 15, 2021 16:35 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 9,958 $126.79 $1,262,574.82
Disclosure

SEC source: 0000919574-21-007033 · ownership.xml · nonDerivative · entry 2

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Berkshire Investors III LLC

Disclosed balance after: 74,109

F3 · 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.

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November 11, 2021 Filed Nov 15, 2021 16:35 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 620,082 $126.79 $78,620,196.78
Disclosure

SEC source: 0000919574-21-007033 · ownership.xml · nonDerivative · entry 1

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 7,097,035

F1 · 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"), Stockbridge Absolute Return Fund, L.P. ("SARF") 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 and SARF. 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, SARF 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.

F2 · ownership.nature: (continued from Footnote 1) 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, SARF 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.

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September 14, 2021 Filed Sep 16, 2021 20:15 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 15,085 $109.75 $1,655,578.75
Disclosure

SEC source: 0000919574-21-005876 · ownership.xml · nonDerivative · entry 3

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Berkshire Investors IV LLC

Disclosed balance after: 82,183

F4 · 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.

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September 14, 2021 Filed Sep 16, 2021 20:15 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 15,082 $109.75 $1,655,249.50
Disclosure

SEC source: 0000919574-21-005876 · ownership.xml · nonDerivative · entry 2

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Berkshire Investors III LLC

Disclosed balance after: 84,067

F3 · 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.

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September 14, 2021 Filed Sep 16, 2021 20:15 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 SaleCommon Stock 1,425,823 $109.75 $156,484,074.25
Disclosure

SEC source: 0000919574-21-005876 · ownership.xml · nonDerivative · entry 1

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 7,717,117

F1 · 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"), Stockbridge Absolute Return Fund, L.P. ("SARF") 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 and SARF. 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, SARF 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.

F2 · ownership.nature: (continued from Footnote 1) 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, SARF 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.

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July 22, 2021 Filed Jul 26, 2021 20:58 UTC ADVANCED DRAINAGE SYSTEMS, INC. WMS · Entity 2328 GrantCommon Stock 1,807 $0.00 $0.00
Disclosure

SEC source: 0000919574-21-004689 · ownership.xml · nonDerivative · entry 1

Seetharam Anil · CIK 0001676191 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,807

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.