Form 4 for WMS ADVANCED DRAINAGE SYSTEMS, INC.

Accepted 2024-03-01 00:00:00 ET · period of report 2024-02-28 · accession 0000919574-24-001852 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
I	2024-03-01	2024-02-28	WMS	JONES ROSS M	Dir	S - Sale	$163.00	-762.9K	0	-100%	-$124.35M

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2024-02-28	S	D	762,895	$163.00	0	I See Footnote	—	—	(F1) Represents shares by Stockbridge Fund, L.P. ("SF") and other certain accounts (collectivelly, the "Berkshire Entities"). Stockbridge Associates LLC ("SA") is the general partner of SF. 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 SP. (F2) (continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, 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.