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Filing Details

Accession Number:: 0000919574-21-001877
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2021-02-22 14:32:09
Reporting Period:: 2021-02-18

Accepted Time:: 2021-02-22 14:32:09
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1604028	Advanced Drainage Systems Inc.	WMS	()	MA

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1267629	M Ross Jones	C/O Advanced Drainage Systems, Inc. 4640 Trueman Boulevard Hilliard OH 43026		Yes	No	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2021-02-18	1	$96.75	10,598,281	No	4	P	Indirect	See Footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Indirect	See Footnote

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	120,759	Indirect	Berkshire Investors III LLC
Common Stock	116,313	Indirect	Berkshire Investors IV LLC
Common Stock	10,507	Direct

Footnotes

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.
(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.
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.
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.