STOCK TITAN

Scott D. Barbour (WMS) granted shares and options in Advanced Drainage Systems

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

ADVANCED DRAINAGE SYSTEMS, INC. director and officer Scott D. Barbour reported equity awards rather than open-market trades. He received 9,036 shares of Common Stock as a grant with no purchase price, bringing his directly held Common Stock to 77,268 shares after the award. He was also granted options on 20,124 shares of Common Stock at an exercise price of $138.09 per share, expiring on May 27, 2036, which vest in three equal annual installments beginning on May 26, 2027. The filing also lists additional indirect holdings in company stock through a KSOP and several revocable, irrevocable, and GRAT trusts associated with Barbour and his spouse.

Positive

  • None.

Negative

  • None.
Insider BARBOUR D. SCOTT
Role See Remarks
Type Security Shares Price Value
Grant/Award Option to Purchase Common Stock 20,124 $0.00 --
Grant/Award Common Stock 9,036 $0.00 --
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Option to Purchase Common Stock — 20,124 shares (Direct, null); Common Stock — 77,268 shares (Direct, null); Common Stock — 53,141 shares (Indirect, Reporting Person's Revocable Trust)
Footnotes (1)
  1. Shares held in revocable trust for the benefit of the reporting person. Shares held in irrevocable spousal access trust established by the reporting person, of which the reporting person's spouse is a co-trustee. The beneficiaries of the irrevocable trust are the reporting person and his children. Shares held in irrevocable remainder trust, of which the reporting person's spouse is trustee. The beneficiaries of the irrevocable trust are the reporting persons's nieces and nephew. Shares held in GRATs of which the reporting person is trustee. Shares held in revocable trust for the benefit of the reporting person's spouse. Shares held in irrevocable spousal access trust established by the reporting person's spouse, of which the reporting person is a co-trustee. The beneficiaries of the irerrevocable trust include the reporting person's spouse and his children. Represents current allocation under KSOP. The options vest in three equal annual installments beginning on May 26, 2027, provided that the Reporting Person remains continuously employed by the Issuer through each applicable vesting date.
Common Stock grant 9,036 shares Grant, award, or other acquisition on May 26, 2026
Direct Common shares after grant 77,268 shares Direct holdings following equity award
Option grant size 20,124 options Options to purchase Common Stock granted May 26, 2026
Option exercise price $138.09 per share Strike price for 20,124 stock options
Option expiration May 27, 2036 Expiration date of granted options
Option vesting start May 26, 2027 First of three annual vesting dates, subject to employment
KSOP financial
"Represents current allocation under KSOP."
GRAT financial
"Shares held in GRATs of which the reporting person is trustee."
revocable trust financial
"Shares held in revocable trust for the benefit of the reporting person."
A revocable trust is a legal arrangement where the person who creates it keeps control and can change or cancel the trust at any time, while naming who will manage and receive the assets later. Think of it like a flexible folder for your investments and property that can be relabeled or reworked as circumstances change; it matters to investors because it determines how ownership is recorded, how easily assets transfer on incapacity or death, and whether holdings bypass public probate proceedings.
irrevocable spousal access trust financial
"Shares held in irrevocable spousal access trust established by the reporting person."
remainder trust financial
"Shares held in irrevocable remainder trust, of which the reporting person's spouse is trustee."
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*
BARBOUR D. SCOTT

(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
XOfficer (give title below)Other (specify below)
See Remarks
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/26/2026
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 Stock05/26/2026A9,036A$077,268D
Common Stock53,141IReporting Person's Revocable Trust(1)
Common Stock109,955IReporting Person's Irrevocable Trust(2)
Common Stock511I2023 GRAT Remainder Trust(3)
Common Stock11,867IReporting Person's 2024 GRAT(4)
Common Stock46,500IReporting Person's 2025 GRAT(4)
Common Stock6,495ISpouse's Revocable Trust(5)
Common Stock69,005ISpouse's Irrevocable Trust(6)
Common Stock17,087.4254IBy KSOP(7)
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
Option to Purchase Common Stock$138.0905/26/2026A20,124 (8)05/27/2036Common Stock20,124$020,124D
Explanation of Responses:
1. Shares held in revocable trust for the benefit of the reporting person.
2. Shares held in irrevocable spousal access trust established by the reporting person, of which the reporting person's spouse is a co-trustee. The beneficiaries of the irrevocable trust are the reporting person and his children.
3. Shares held in irrevocable remainder trust, of which the reporting person's spouse is trustee. The beneficiaries of the irrevocable trust are the reporting persons's nieces and nephew.
4. Shares held in GRATs of which the reporting person is trustee.
5. Shares held in revocable trust for the benefit of the reporting person's spouse.
6. Shares held in irrevocable spousal access trust established by the reporting person's spouse, of which the reporting person is a co-trustee. The beneficiaries of the irerrevocable trust include the reporting person's spouse and his children.
7. Represents current allocation under KSOP.
8. The options vest in three equal annual installments beginning on May 26, 2027, provided that the Reporting Person remains continuously employed by the Issuer through each applicable vesting date.
Remarks:
President & Chief Executive Officer
/s/ D. Scott Barbour, by Scott A. Cottrill as attorney-in-fact05/28/2026
** 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)

FAQ

What did Scott D. Barbour report in this Form 4 for WMS?

Scott D. Barbour reported receiving equity awards in Advanced Drainage Systems stock. He was granted 9,036 Common shares and options on 20,124 shares, updating his direct and derivative holdings without any reported open-market buying or selling.

How many WMS Common shares does Scott D. Barbour hold directly after this filing?

After the reported grant, Scott D. Barbour directly holds 77,268 shares of Advanced Drainage Systems Common Stock. This figure reflects his position following the award of 9,036 additional shares at no purchase price on the reported date.

What stock options did Scott D. Barbour receive from Advanced Drainage Systems?

Barbour received options to purchase 20,124 shares of Advanced Drainage Systems Common Stock. The options have an exercise price of $138.09 per share and expire on May 27, 2036, creating a long-dated incentive tied to the company’s share price.

When do Scott D. Barbour’s new WMS stock options vest?

The newly granted options vest in three equal annual installments beginning on May 26, 2027. Vesting continues annually thereafter, provided Scott D. Barbour remains continuously employed by Advanced Drainage Systems through each applicable vesting date.

Were any open-market purchases or sales of WMS stock reported?

No open-market purchases or sales were reported in this Form 4. The only transactions with specified codes were grants: 9,036 Common shares and options on 20,124 shares, both categorized as grant or award acquisitions rather than market trades.

What indirect WMS holdings are associated with Scott D. Barbour?

The filing shows indirect holdings in Advanced Drainage Systems stock through a KSOP and multiple trusts. These include revocable and irrevocable trusts, spousal access trusts, GRATs, and a remainder trust tied to Barbour, his spouse, children, nieces, and nephew.