Was Anne DelSanto’s AEIS share sale made under a Rule 10b5-1 plan?

Yes, the reported sale was executed under a Rule 10b5-1 trading plan. The footnotes state that the plan was adopted by Anne DelSanto on March 13, 2025, indicating the transaction was pre-arranged rather than initiated opportunistically.

Director of Advanced Energy (NASDAQ: AEIS) sells 240 trust shares

Filing Impact

(Neutral)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

ADVANCED ENERGY INDUSTRIES INC director Anne DelSanto reported an open-market sale of 240 shares of common stock at $312.59 per share on March 16, 2026. The transaction was executed indirectly through The Delsanto Family Trust, where she serves as trustee.

The sale was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on March 13, 2025. Following this transaction, the trust continues to hold 6,414 shares of Advanced Energy common stock indirectly for DelSanto.

Insider Trade Summary 10b5-1

Net Seller: 240 shares ($75,022)

Net Sell 1 txn

Insider DelSanto Anne

Role Director

Sold 240 shs ($75K)

Type	Security	Shares	Price	Value
Sale	Common Stock	240	$312.59	$75K

Holdings After Transaction: Common Stock — 6,414 shares (Indirect, By The Delsanto Family Trust)

Footnotes (1)

The reported sale was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2025. Shares held by The Delsanto Family Trust, for which the reporting person serves as a trustee.

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 03/18/2026 - 11:27 AM

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^*

DelSanto Anne

(Last)

(First)

(Middle)

1595 WYNKOOP, SUITE 800

(Street)

DENVER

COLORADO

80202

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ADVANCED ENERGY INDUSTRIES INC [ AEIS ]

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)
02/17/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	03/16/2026		S⁽¹⁾		240	D	$312.59	6,414	I	By The Delsanto Family Trust⁽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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The reported sale was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2025.

2. Shares held by The Delsanto Family Trust, for which the reporting person serves as a trustee.

	/s/ Elizabeth Vonne - Attorney-in-Fact	03/18/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did AEIS director Anne DelSanto report?

Anne DelSanto reported an open-market sale of 240 shares of Advanced Energy common stock. The shares were sold at $312.59 each on March 16, 2026, and the transaction was reported as an indirect holding through The Delsanto Family Trust.

At what price were the AEIS shares sold in Anne DelSanto’s transaction?

The AEIS shares were sold at $312.59 per share in this transaction. This price applied to 240 shares of common stock sold on March 16, 2026, and was disclosed as an open-market sale executed through The Delsanto Family Trust.

How many AEIS shares does The Delsanto Family Trust hold after the sale?

After the sale, The Delsanto Family Trust holds 6,414 shares of Advanced Energy common stock. These shares are reported as indirect ownership for director Anne DelSanto, reflecting her role as trustee of the trust in the filing.

Is Anne DelSanto’s AEIS transaction a direct or indirect shareholding change?

The transaction reflects an indirect shareholding change for Anne DelSanto. The 240 shares sold and the remaining 6,414 shares are held by The Delsanto Family Trust, where she serves as trustee, and are therefore reported as indirect ownership.