Advanced Energy GC sells 632 shares at $288.14

AEIS’s EVP and General Counsel reported a 632‑share sale under a Rule 10b5‑1 trading plan, retaining 9,177 shares afterward.

Rhea-AI Filing Summary

ADVANCED ENERGY INDUSTRIES INC (AEIS) reported that EVP and General Counsel Vonne Elizabeth Karpinski sold 632 shares of common stock on September 8, 2026 in an open-market or private transaction at $288.14 per share. After the sale, she directly holds 9,177 shares, including shares acquired through the Dividend Reinvestment Plan. The transaction was made pursuant to a Rule 10b5-1 trading plan adopted on May 19, 2026.

Insider Trade Summary 10b5-1

Net Seller: 632 shares

Net Sell 1 txn

Insider Vonne Elizabeth Karpinski

Role EVP, General Counsel

Sold 632 shs ($182K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	632	$288.14	$182K

Holdings After Transaction: Common Stock — 9,177 shares (Direct)

Footnotes (2)

1. F1. The reported sale was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 19, 2026.
2. F2. Amount includes 40.984 shares acquired through the Dividend Reinvestment Plan. The numbers reported herein are rounded to the nearest number.

Key Figures

Shares sold: 632 shares Sale price per share: $288.14 per share Shares held after transaction: 9,177 shares +2 more

5 metrics

Shares sold 632 shares Sale of AEIS common stock on September 8, 2026

Sale price per share $288.14 per share Reported price for the September 8, 2026 sale

Shares held after transaction 9,177 shares Direct holdings of AEIS common stock following the sale

Dividend Reinvestment Plan shares included 40.984 shares Portion of post-transaction holdings acquired through the Dividend Reinvestment Plan

Net shares sold in filing 632 shares Net sell direction based on transaction summary

Key Terms

Rule 10b5-1 trading plan, Dividend Reinvestment Plan, open market or private transaction

3 terms

Rule 10b5-1 trading plan regulatory

"The reported sale was made pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

Dividend Reinvestment Plan financial

"Amount includes 40.984 shares acquired through the Dividend Reinvestment Plan"

A dividend reinvestment plan lets shareholders automatically use cash dividends to buy more shares of the same company instead of receiving the money. It matters to investors because it turns regular payouts into a steady way to grow ownership and take advantage of compound returns—like having your savings automatically buy additional slices of a pie over time—while often reducing transaction costs and smoothing purchase timing.

open market or private transaction financial

"Sale in open market or private transaction"

FAQ

What insider transaction did AEIS report for Vonne Elizabeth Karpinski?

The company reported that Vonne Elizabeth Karpinski, EVP and General Counsel, sold 632 shares of AEIS common stock on September 8, 2026 in a sale classified as open-market or private.

At what price were the AEIS shares sold in this Form 4 filing?

The reported sale of AEIS common stock was executed at a price of $288.14 per share, as disclosed for the September 8, 2026 transaction.

How many AEIS shares does Vonne Elizabeth Karpinski hold after this transaction?

Following the reported sale, Vonne Elizabeth Karpinski directly holds 9,177 shares of AEIS common stock, which includes 40.984 shares acquired through the Dividend Reinvestment Plan.

Was the AEIS insider sale made under a Rule 10b5-1 trading plan?

Yes. The filing states that the sale was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 19, 2026, and the related Rule 10b5-1 checkbox is affirmed.

What is the role of the insider involved in this AEIS Form 4?

The reporting person, Vonne Elizabeth Karpinski, serves as EVP, General Counsel of Advanced Energy Industries Inc., as indicated in the Form 4.

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

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Available on EDGAR 09/10/2026 - 06:28 PM Accepted by SEC EDGAR 09/10/2026 - 06:27 PM Learn about SEC filing dates

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).

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^*

Vonne Elizabeth Karpinski

(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, General Counsel

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/08/2026

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	09/08/2026		S(1)		632	D	$288.14	9,177(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 May 19, 2026.

2. Amount includes 40.984 shares acquired through the Dividend Reinvestment Plan. The numbers reported herein are rounded to the nearest number.

	Elizabeth Vonne	09/10/2026
	** 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)