AEIS (AEIS) EVP John Donaghey reports RSU, performance and phantom stock awards

Rhea-AI Filing Summary

ADVANCED ENERGY INDUSTRIES INC EVP Global Sales John Donaghey reported multiple equity-related transactions dated March 1, 2026. He acquired restricted stock units, performance units, and phantom stock awards at no cost under the company’s long-term incentive and deferred compensation plans. Vested RSUs were converted one-for-one into common stock, with 1,736 shares of common stock withheld to cover taxes and 875 shares disposed to the issuer in connection with deferrals into phantom stock. Following these transactions, Donaghey directly held 16,276 shares of common stock and 4,948 shares of phantom stock.

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

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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^*

Donaghey John

(Last) (First) (Middle)

1595 WYNKOOP STREET, SUITE 800

(Street)

DENVER CO 80202

(City) (State) (Zip)

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Global Sales

3. Date of Earliest Transaction (Month/Day/Year)
03/01/2026

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

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

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

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	03/01/2026		M		1,750(1)	A	(1)	17,096	D
Common Stock	03/01/2026		M		1,791(2)	A	(2)	18,887	D
Common Stock	03/01/2026		F		1,736(3)	D	$335.57	17,151	D
Common Stock	03/01/2026		D		875	D	(4)	16,276	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
Restricted Stock Units	(1)	03/01/2026		M			2,612	(1)	(1)	Common Stock	2,612	$0	2,612	D
Restricted Stock Units	(2)	03/01/2026		M			2,388	(2)	(2)	Common Stock	2,388	$0	4,775	D
Restricted Stock Units	$0	03/01/2026		A		3,320		(5)	(5)	Common Stock	3,320	$0	3,320	D
Performance Units	$0	03/01/2026		A	V	3,320		(6)	(6)	Common Stock	3,320	$0	3,320	D
Phantom Stock	(7)	03/01/2026		A		2,334(8)		(7)	(7)	Common Stock	2,334	$0	4,948	D

Explanation of Responses:

1. On March 1, 2024, the reporting person was granted 7,837 restricted stock units ("RSUs") vesting in three equal installments beginning on the first anniversary of the grant date, of which the second installment vested on March 1, 2026. RSUs convert into common stock on a one-for-one basis. Of the 2,612 vested shares, receipt of 862 shares of common stock was deferred pursuant to the reporting person's election under the Company's deferred compensation plan (the "Plan").

2. On March 1, 2025, the reporting person was granted 7,163 restricted stock units ("RSUs") vesting in three equal installments beginning on the first anniversary of the grant date, of which the first installment vested on March 1, 2026. RSUs convert into common stock on a one-for-one basis. Of the 2,388 vested shares, receipt of 597 shares of common stock was deferred pursuant to the reporting person's election under the Plan.

3. Payment of tax liability by withholding securities incident to vesting of RSUs.

4. In connection with the March 1, 2026 vesting of RSUs previously granted on March 1, 2023 and reported in Table 1, the reporting person's receipt of 875 shares of common stock was deferred pursuant to the reporting person's election under the Plan, resulting in the reporting person's receipt of 875 shares of phantom stock.

5. These employee RSUs were issued pursuant to the Company's Amended and Restated 2023 Omnibus Incentive Plan ("LTI Plan") and will vest in three equal installments beginning on the first anniversary of the grant date.

6. These performance share awards were issued pursuant to the LTI Plan at 100% of target, have a three-year performance period, and will vest in all or in part upon achievement of performance metrics. Any awards that have not been vested and released at the end of the three-year performance period will be canceled.

7. Each share of phantom stock represents a right to receive one share of common stock or the cash value thereof. Shares of phantom stock become payable in accordance with the reporting person's distribution elections made pursuant to the Plan or upon the reporting person's termination of service, death, or disability. Subject to certain timing restrictions, the reporting person may transfer some or all of the shares of phantom stock into alternative investments under the terms of the Plan.

8. Represents 875 shares of phantom stock received as a result of the deferral of 875 RSUs previously granted on March 1, 2023 and reported in Table 1, 862 shares of phantom stock received as a result of the deferral of 862 RSUs previously granted on March 1, 2024 and reported on Table 2, and 597 shares of phantom stock received as a result of the deferral of 597 RSUs previously granted on March 1, 2025 and reported on Table 2.

	/s/ Elizabeth Vonne - Attorney-in-Fact	03/03/2026
	** Signature of Reporting Person	Date
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FAQ

What insider transactions did AEIS executive John Donaghey report on March 1, 2026?

John Donaghey reported equity-related transactions involving RSUs, performance units, phantom stock, and common stock. Vested RSUs converted into common shares, new awards were granted at no cost, and some shares were withheld or deferred for taxes and deferred compensation elections.

How many AEIS common shares did John Donaghey hold after these Form 4 transactions?

After the reported transactions, John Donaghey directly held 16,276 shares of AEIS common stock. This reflects RSU vesting into stock, exercises or conversions, tax-withholding dispositions, and a disposition to the issuer linked to his deferred compensation plan elections.

What restricted stock unit activity did AEIS report for John Donaghey?

AEIS reported RSU activity where installments from grants vested and converted into common stock on a one-for-one basis. From these vested RSUs, portions of the resulting shares were deferred into phantom stock and some shares were withheld to satisfy tax liabilities associated with the vesting events.

What new equity awards did AEIS grant to John Donaghey in this Form 4?

The filing shows grants of 3,320 restricted stock units and 3,320 performance units issued at no cost under AEIS’s Amended and Restated 2023 Omnibus Incentive Plan. These awards vest over time or upon meeting performance metrics during a three-year performance period.

How do AEIS phantom stock awards work for John Donaghey?

Each share of phantom stock represents the right to receive one share of common stock or its cash value. Phantom stock becomes payable based on Donaghey’s distribution elections under the deferred compensation plan or upon termination, death, or disability, and can be reallocated among alternative investments subject to plan terms.

Why were some AEIS shares withheld or disposed of in Donaghey’s Form 4?

AEIS reported that 1,736 common shares were withheld to pay tax liabilities triggered by RSU vesting. An additional 875 shares were disposed to the issuer in connection with deferring receipt of common stock into phantom stock under Donaghey’s deferred compensation plan elections.