Advanced Drainage Systems (WMS) director reports stock sale and 1,000-share gift

Rhea-AI Filing Summary

Advanced Drainage Systems director reports insider transactions. A reporting person serving as a director of Advanced Drainage Systems, Inc. disclosed activity in the company’s common stock through a revocable trust and direct holdings.

On 12/03/2025, the revocable trust sold 10,569 shares of common stock at $152.82 per share in an open market sale, leaving the trust with 50,076 shares afterward. On 12/05/2025, the trust made a gift of 1,000 shares at a stated price of $0, reducing its holdings to 49,076 shares.

Separately, the reporting person is shown as directly holding 2,386 shares of common stock. The filing notes that the revocable trust’s shares are held for the benefit of the reporting person, their spouse, and children.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

EVERSOLE ROBERT M

(Last) (First) (Middle)

C/O ADVANCED DRAINAGE SYSTEMS, INC.

4640 TRUEMAN BOULEVARD

(Street)

HILLIARD OH 43026

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ADVANCED DRAINAGE SYSTEMS, INC. [ WMS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
12/03/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/03/2025		S		10,569	D	$152.82	50,076	I	Reporting Person's Revocable Trust(1)
Common Stock	12/05/2025		G		1,000	D	$0	49,076	I	Reporting Person's Revocable Trust(1)
Common Stock								2,386	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Shares held in revocable trust for the benefit of the reporting person and the reporting person's spouse and children.

	/s/ Robert M. Eversole, by Scott A. Cottrill as attorney-in-fact	12/05/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did Advanced Drainage Systems (WMS) disclose in this Form 4?

The director’s revocable trust sold 10,569 shares of Advanced Drainage Systems common stock at $152.82 per share on 12/03/2025 and later gifted 1,000 shares on 12/05/2025.

How many Advanced Drainage Systems (WMS) shares does the reporting person hold after these transactions?

After the reported transactions, the revocable trust holds 49,076 shares of Advanced Drainage Systems common stock, and the reporting person directly holds 2,386 shares.

What was the sale price of Advanced Drainage Systems (WMS) shares in the reported insider sale?

The revocable trust sold 10,569 shares of Advanced Drainage Systems common stock at a price of $152.82 per share on 12/03/2025.

Was any of the Advanced Drainage Systems (WMS) stock transferred as a gift?

Yes. On 12/05/2025, the revocable trust reported a gift of 1,000 shares of Advanced Drainage Systems common stock with a reported price of $0.

In whose name are the Advanced Drainage Systems (WMS) shares held for the reporting person?

The filing states that shares are held in a revocable trust for the benefit of the reporting person, the reporting person’s spouse, and children, in addition to the shares held directly.

What is the relationship of the reporting person to Advanced Drainage Systems (WMS)?

The reporting person is identified as a director of Advanced Drainage Systems, Inc.