Advanced Drainage EVP has 26 shares withheld for tax

An executive of ADVANCED DRAINAGE SYSTEMS, INC. had shares withheld for taxes on restricted stock vesting while retaining over 14,000 shares through direct and KSOP holdings.

Rhea-AI Filing Summary

ADVANCED DRAINAGE SYSTEMS, INC. (WMS) reported that Executive Vice President of Supply Chain Management Patrick M. Coyle Jr. had 26 shares of common stock withheld on September 1, 2026 to satisfy tax obligations arising from the vesting of restricted common stock. After this tax withholding, he held 10,039 shares of common stock directly, and an additional 4,317.1115 shares were held for his benefit through a KSOP allocation. The transactions were not made under a Rule 10b5-1 trading plan.

Insider Trade Summary

Tax Withholding: 26 shares

Tax Withholding 2 txns

Insider Coyle Patrick M. Jr

Role See Remarks

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	26	$130.75	$3K
holding	Common Stock F2	--	--	--

Holdings After Transaction: Common Stock — 10,039 shares (Direct); Common Stock — 4,317.1115 shares (Indirect, By KSOP)

Footnotes (2)

1. F1. Represents shares withheld to satisfy Reporting Person's tax obligations in connection with the vesting of shares of restricted common stock of the Issuer.
2. F2. Represents current allocation under KSOP.

Key Figures

Shares withheld for taxes: 26 shares Withholding valuation price: $130.75 per share Direct holdings after transaction: 10,039 shares +1 more

4 metrics

Shares withheld for taxes 26 shares Common stock withheld on September 1, 2026 to satisfy tax obligations on vesting

Withholding valuation price $130.75 per share Value per common share used for the 26 withheld shares on September 1, 2026

Direct holdings after transaction 10,039 shares Common stock directly held by the executive following the September 1, 2026 withholding

Indirect KSOP holdings 4,317.1115 shares Current allocation of common stock under KSOP held indirectly for the executive

Key Terms

restricted common stock, tax obligations, KSOP

3 terms

restricted common stock financial

"in connection with the vesting of shares of restricted common stock of the Issuer"

Restricted common stock is company shares that carry limits on selling or transferring for a set period or until certain conditions are met, like time-based vesting or regulatory clearance. Think of them as shares in a locked box that gradually open; they can become freely tradable later but initially reduce the number of shares available on the market. Investors watch restricted stock because its eventual release can change a company’s share supply, affect stock price, and influence control and dilution.

tax obligations financial

"Represents shares withheld to satisfy Reporting Person's tax obligations in connection"

KSOP financial

"Represents current allocation under KSOP."

FAQ

What insider transaction did WMS report for Patrick M. Coyle Jr.?

WMS reported that 26 shares of common stock were withheld on September 1, 2026 to satisfy Patrick M. Coyle Jr.’s tax obligations related to vesting restricted common stock.

How many WMS shares does the executive hold directly after this Form 4?

After the tax withholding transaction, the executive directly held 10,039 shares of ADVANCED DRAINAGE SYSTEMS, INC. common stock.

What is the indirect KSOP holding reported for WMS stock?

The filing reports an indirect holding of 4,317.1115 shares of ADVANCED DRAINAGE SYSTEMS, INC. common stock through a current allocation under a KSOP.

At what price were the WMS shares withheld for taxes valued?

The 26 withheld shares used to satisfy tax obligations were valued at $130.75 per share on September 1, 2026.

Was the WMS insider transaction under a Rule 10b5-1 plan?

No. The Form 4 indicates that the transaction was not made under a Rule 10b5-1 trading plan.

What triggered the tax withholding of WMS shares?

The tax withholding of 26 shares was triggered by the vesting of restricted common stock of ADVANCED DRAINAGE SYSTEMS, INC.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/03/2026 - 06:18 PM Accepted by SEC EDGAR 09/03/2026 - 06:11 PM Learn about SEC filing dates

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
Estimated average burden
hours per response:			0.5

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^*

Coyle Patrick M. Jr

(Last) (First) (Middle)

C/O ADVANCED DRAINAGE SYSTEMS, INC.

4024 GREEN STRIPE LANE

(Street)

HILLIARD OHIO 43026

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/01/2026

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

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

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

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	09/01/2026		F		26(1)	D	$130.75	10,039	D
Common Stock								4,317.1115	I	By KSOP(2)

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. Represents shares withheld to satisfy Reporting Person's tax obligations in connection with the vesting of shares of restricted common stock of the Issuer.

2. Represents current allocation under KSOP.

Remarks:

Executive Vice President, Supply Chain Management

	/s/ Patrick M. Coyle, Jr., by Scott A. Cottrill as attorney-in-fact	09/03/2026
	** 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.
* Form 4: SEC 1474 (03-26)