Advanced Drainage Systems (NYSE: WMS) director receives 1,110-share grant

Rhea-AI Filing Summary

Advanced Drainage Systems, Inc. director Tanya D. Fratto reported a grant/award acquisition of 1,110 shares of Common Stock on 2026-07-16 at $0.00 per share. After this transaction, she directly holds 30,552 shares of the company’s Common Stock.

Insider Trade Summary

Net Buyer: 1,110 shares

Net Buy 1 txn

Insider FRATTO TANYA D

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,110	$0.00	$0.00

Holdings After Transaction: Common Stock — 30,552 shares (Direct)

Key Figures

Shares acquired: 1,110 shares Price per share: $0.00 Total direct holdings: 30,552 shares

3 metrics

Shares acquired 1,110 shares Common Stock grant/award acquisition on 2026-07-16

Price per share $0.00 Reported transaction price per share for the grant

Total direct holdings 30,552 shares Common Stock directly owned by Tanya D. Fratto after the transaction

Key Terms

Common Stock, Grant, award, or other acquisition

2 terms

Common Stock financial

"Security title reported as Common Stock for the transaction"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Grant, award, or other acquisition financial

"Transaction code description: Grant, award, or other acquisition"

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/20/2026 - 05:19 PM Accepted by SEC EDGAR 07/20/2026 - 05:18 PM Learn about SEC filing dates

FAQ

What insider transaction did Tanya D. Fratto report for WMS?

Director Tanya D. Fratto reported a grant/award acquisition of 1,110 shares of Advanced Drainage Systems Common Stock. The transaction occurred on 2026-07-16 at a reported price of $0.00 per share, reflecting a non-cash equity award.

How many WMS shares does Tanya D. Fratto own after this Form 4?

Following the reported grant, Tanya D. Fratto directly owns 30,552 shares of Advanced Drainage Systems Common Stock. This total represents her direct holdings immediately after the 1,110-share award on 2026-07-16 as disclosed in the insider report.

What type of WMS security was involved in Tanya D. Fratto’s transaction?

The transaction involved Common Stock of Advanced Drainage Systems, Inc. The Form 4 describes the event as a grant, award, or other acquisition of 1,110 Common Stock shares credited to Tanya D. Fratto on 2026-07-16.

Was Tanya D. Fratto’s WMS stock grant reported as a market purchase or a grant?

It was reported as a grant, award, or other acquisition, not a market purchase. The transaction code “A” and zero $0.00 per-share price indicate shares were awarded to Tanya D. Fratto rather than bought in the open market.

Did Tanya D. Fratto’s WMS stock transaction occur under a Rule 10b5-1 plan?

The Rule 10b5-1 checkbox for this report is not marked as an affirmative plan. There is no associated 10b5-1 trading plan noted for this transaction; it is reported simply as a direct grant/award of 1,110 Common Stock shares.

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^*

FRATTO TANYA D

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/16/2026

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	07/16/2026		A		1,110	A	$0.00	30,552	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:

	/s/ Tanya D. Fratto, by Scott A. Cottrill as attorney-in-fact	07/20/2026
	** 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)