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Advanced Drainage Systems (NYSE: WMS) director granted 1,110 shares

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Advanced Drainage Systems, Inc. reported that director Anesa Chaibi received a grant of 1,110 shares of common stock on July 16, 2026. The award was classified as a grant or award acquisition and recorded at $0.00 per share.

Following this transaction, Chaibi directly holds 8,698 common shares of Advanced Drainage Systems.

Positive

  • None.

Negative

  • None.
Insider CHAIBI ANESA
Role Director
Type Security Shares Price Value
Grant/Award Common Stock 1,110 $0.00 $0.00
Holdings After Transaction: Common Stock — 8,698 shares (Direct)
Shares granted 1110.0000 shares Common stock grant to director Anesa Chaibi on 2026-07-16
Grant price per share $0.0000 per share Recorded price for the 1,110-share common stock award
Total shares after grant 8698.0000 shares Director Anesa Chaibi's direct common stock holdings following the award
Transaction date 2026-07-16 Date of the reported common stock grant to Anesa Chaibi
Common Stock financial
"security_title field shows "Common Stock" as the class of equity"
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.
non-derivative financial
"transaction_type is reported as a non-derivative security position"
Grant, award, or other acquisition financial
"transaction_code_description states "Grant, award, or other acquisition""

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

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FAQ

What insider transaction did Advanced Drainage Systems (WMS) report for Anesa Chaibi?

Advanced Drainage Systems reported that director Anesa Chaibi received a grant of 1,110 shares of common stock on July 16, 2026. The award was coded as a grant or award acquisition, not an open-market purchase, and was recorded at $0.00 per share.

How many Advanced Drainage Systems (WMS) shares does Anesa Chaibi own after the reported grant?

After the transaction, director Anesa Chaibi directly holds 8,698 shares of Advanced Drainage Systems common stock. This total reflects her position immediately following the July 16, 2026 grant of 1,110 shares reported in the Form 4 insider transaction.

What was the price per share for Anesa Chaibi’s WMS stock grant?

The 1,110-share grant to Anesa Chaibi was recorded at $0.00 per share. This reflects that the shares were received as a grant or award acquisition rather than purchased in the open market at a positive cash price per share.

Was Anesa Chaibi’s Advanced Drainage Systems (WMS) transaction under a Rule 10b5-1 trading plan?

The Form 4 indicates the Rule 10b5-1 checkbox was not marked for Anesa Chaibi’s transaction. This means the reported July 16, 2026 stock grant was not disclosed as being executed under a pre-arranged Rule 10b5-1 trading plan.

Is Anesa Chaibi’s ownership of Advanced Drainage Systems (WMS) shares direct or indirect?

The Form 4 classifies Anesa Chaibi’s holdings as direct ownership. After receiving the 1,110-share grant of common stock on July 16, 2026, she directly holds a total of 8,698 Advanced Drainage Systems shares in her own name, rather than through an intermediary entity.
SEC Form 4
FORM 4UNITED 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*
CHAIBI ANESA

(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)
XDirector10% 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)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock07/16/2026A1,110A$0.008,698D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
/s/ Anesa Chaibi, by Scott A. Cottrill as attorney-in-fact07/20/2026
** Signature of Reporting PersonDate
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)