What was the approximate value of Vonne Elizabeth Karpinski’s AEIS share sale?

Karpinski sold 908 AEIS shares at $332.68 per share , implying transaction proceeds of roughly $302,000 before costs. The filing labels this as a sale in an open-market or private transaction under a Rule 10b5-1 plan.

Advanced Energy Industries (AEIS) EVP's $302K stock sale under 10b5-1 plan

Q: What insider transaction did AEIS report for Vonne Elizabeth Karpinski on August 18, 2026?

AEIS reported that EVP and General Counsel Vonne Elizabeth Karpinski sold 908 shares of common stock at $332.68 per share on August 18, 2026 . This was a reported open-market or private sale under a pre-arranged plan.

Q: How many AEIS shares does Vonne Elizabeth Karpinski hold after the reported sale?

After the transaction, Vonne Elizabeth Karpinski holds 10,712 AEIS shares directly. This total includes 36.885 shares acquired through the company’s Dividend Reinvestment Plan, with figures rounded to the nearest whole share in the report.

Q: Was the August 18, 2026 AEIS insider sale by Karpinski under a Rule 10b5-1 plan?

Yes. The filing states the 908-share sale was made under a Rule 10b5-1 trading plan adopted by Karpinski on May 19, 2026 . Such plans pre-schedule trades, reducing the informational value of transaction timing.

Filing Impact

(Moderate)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

ADVANCED ENERGY INDUSTRIES INC (AEIS) reported that officer Vonne Elizabeth Karpinski, EVP and General Counsel, sold 908 shares of common stock on August 18, 2026 at $332.68 per share in an open-market or private transaction.

After this sale, Karpinski held 10,712 shares directly, which includes 36.885 shares acquired through a Dividend Reinvestment Plan. The sale was made pursuant to a Rule 10b5-1 trading plan adopted on May 19, 2026.

Insider Trade Summary 10b5-1

Net Seller: 908 shares

Net Sell 1 txn

Insider Vonne Elizabeth Karpinski

Role EVP, General Counsel

Sold 908 shs ($302K)

Type	Security	Shares	Price	Value
Sale	Common Stock ^{F1, F2}	908	$332.68	$302K

Holdings After Transaction: Common Stock — 10,712 shares (Direct)

Footnotes (2)

F1. The reported sale was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 19, 2026
F2. Amount includes 36.885 shares acquired through the Dividend Reinvestment Plan. The numbers reported herein are rounded to the nearest number.

Key Figures

Shares sold: 908 shares Sale price per share: $332.68 per share Shares owned after transaction: 10,712 shares +2 more

5 metrics

Shares sold 908 shares Common stock sale by Vonne Elizabeth Karpinski on August 18, 2026

Sale price per share $332.68 per share Price for the 908 AEIS shares sold on August 18, 2026

Shares owned after transaction 10,712 shares Direct AEIS common stock holdings following the reported sale

Dividend Reinvestment Plan shares 36.885 shares Portion of post-transaction holdings acquired through the Dividend Reinvestment Plan

Rule 10b5-1 plan adoption date May 19, 2026 Date Karpinski adopted the trading plan governing the reported sale

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

"includes 36.885 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 on August 18, 2026?

AEIS reported that EVP and General Counsel Vonne Elizabeth Karpinski sold 908 shares of common stock at $332.68 per share on August 18, 2026. This was a reported open-market or private sale under a pre-arranged plan.

How many AEIS shares does Vonne Elizabeth Karpinski hold after the reported sale?

After the transaction, Vonne Elizabeth Karpinski holds 10,712 AEIS shares directly. This total includes 36.885 shares acquired through the company’s Dividend Reinvestment Plan, with figures rounded to the nearest whole share in the report.

Was the August 18, 2026 AEIS insider sale by Karpinski under a Rule 10b5-1 plan?

Yes. The filing states the 908-share sale was made under a Rule 10b5-1 trading plan adopted by Karpinski on May 19, 2026. Such plans pre-schedule trades, reducing the informational value of transaction timing.

Does the AEIS filing mention dividend reinvestment in Karpinski’s holdings?

Yes. The filing notes that her post-transaction holdings include 36.885 shares acquired via a Dividend Reinvestment Plan. It also clarifies that the numbers disclosed are rounded to the nearest whole share for reporting.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/19/2026 - 12:46 PM Accepted by SEC EDGAR 08/19/2026 - 12:46 PM

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^*

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)
08/18/2026

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)
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	08/18/2026		S⁽¹⁾		908	D	$332.68	10,712⁽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)
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 May 19, 2026

2. Amount includes 36.885 shares acquired through the Dividend Reinvestment Plan. The numbers reported herein are rounded to the nearest number.

	Elizabeth Vonne	08/19/2026
	** 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)

Source: View Original Filing on SEC EDGAR