Advanced Energy (AEIS) CFO sells 4,314 shares under 10b5-1 plan

Rhea-AI Filing Summary

Advanced Energy Industries EVP and CFO Paul R. Oldham reported an open-market sale of 4,314 shares of common stock. The shares were sold on March 18, 2026 at a price of $315.99 per share. After this transaction, he directly owns 22,217 shares of the company’s stock. According to a footnote, the sale was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on August 20, 2025, indicating it was scheduled in advance rather than timed opportunistically.

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Equity markets analyst

CFO executes pre-planned share sale, retains sizable holding.

The EVP and CFO of Advanced Energy Industries sold 4,314 common shares in an open-market transaction at $315.99 per share. Following the sale, he continues to hold 22,217 shares, so the transaction represents only part of his overall equity stake.

A footnote states the sale was made under a Rule 10b5-1 trading plan adopted on August 20, 2025. Such plans are pre-arranged and designed to reduce discretion over timing, which generally lessens the informational content of the trade for outsiders.

There are no derivative positions reported in this filing, and no indication of option exercises or tax-related share withholding. Future company filings may provide additional context on any further transactions under this 10b5-1 plan.

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
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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).

X

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^*

Oldham Paul R

(Last) (First) (Middle)

1595 WYNKOOP STREET, 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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/18/2026

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	03/18/2026		S(1)		4,314	D	$315.99	22,217(2)	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:

1. The reported sale was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 20, 2025.

2. Includes 1,158 shares previously omitted from the Column 5 total due to an administrative error in a Form 4 originally filed on February 21, 2025, which was corrected by an amendment thereto filed on March 19, 2026.

	/s/ Elizabeth Vonne - Attorney-in-Fact	03/19/2026
	** 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)

FAQ

What did Advanced Energy Industries (AEIS) CFO Paul R. Oldham report in this Form 4?

He reported selling 4,314 shares of Advanced Energy Industries common stock in an open-market transaction at $315.99 per share. After the sale, he directly holds 22,217 shares, so he maintains a meaningful ownership position in the company.

Was the AEIS CFO’s sale of 4,314 shares a pre-planned transaction?

Yes. A footnote explains the sale was executed under a Rule 10b5-1 trading plan adopted on August 20, 2025. These plans schedule trades in advance, which reduces the insider’s control over timing and typically makes the transaction more routine in nature.

How many Advanced Energy Industries shares does the CFO own after this reported sale?

After selling 4,314 shares, the EVP and CFO directly owns 22,217 shares of Advanced Energy Industries common stock. This post-transaction balance, disclosed in Column 5 of the Form 4, shows he continues to have significant equity exposure to the company’s performance.

What price did the AEIS CFO receive per share in the reported stock sale?

The reported sale was executed at $315.99 per share for Advanced Energy Industries common stock. This per-share sale price, combined with the 4,314 shares sold, indicates a sizable transaction value, even though the filing itself only specifies the price and share count.

Does the Form 4 mention any corrections to the AEIS CFO’s prior reported holdings?

Yes. A footnote notes that 1,158 shares had been previously omitted from the Column 5 ownership total because of an administrative error in a February 21, 2025 Form 4, which was later corrected by an amendment filed on March 19, 2026.

Does this AEIS Form 4 show any option exercises or derivative security transactions?

No. The filing reports only a single non-derivative transaction: the sale of common stock. The derivative summary is empty, indicating there were no reported option exercises, conversions, or other derivative-related trades in this specific Form 4 submission.