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Advanced Energy (AEIS) EVP logs RSU vesting, new awards and tax share withholding

Filing Impact
(Very High)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Advanced Energy Industries EVP and General Counsel Vonne Elizabeth Karpinski reported multiple equity-related transactions on March 1, 2026. She acquired common stock through the vesting and conversion of restricted stock units (RSUs), including 1,959 and 1,377 shares from RSU exercises at a price of $0.00 per share.

She also received new awards of 2,656 RSUs, 2,655 performance units, and 1,027 shares of phantom stock, all at $0.00 per share, under the company’s long-term incentive and deferred compensation plans. To satisfy tax withholding on vested RSUs, 2,033 shares of common stock were disposed of, and 437 shares were transferred back to the issuer in connection with a deferral election into phantom stock.

Positive

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Insider Vonne Elizabeth Karpinski
Role EVP, General Counsel
Type Security Shares Price Value
Exercise Restricted Stock Units 1,959 $0.00 --
Exercise Restricted Stock Units 1,967 $0.00 --
Grant/Award Restricted Stock Units 2,656 $0.00 --
Grant/Award Performance Units 2,655 $0.00 --
Grant/Award Phantom Stock 1,027 $0.00 --
Exercise Common Stock 1,959 $0.00 --
Exercise Common Stock 1,377 $0.00 --
Tax Withholding Common Stock 2,033 $335.57 $682K
Disposition Common Stock 437 $0.00 --
Holdings After Transaction: Restricted Stock Units — 1,959 shares (Direct); Performance Units — 2,655 shares (Direct); Phantom Stock — 4,051 shares (Direct); Common Stock — 13,642 shares (Direct)
Footnotes (1)
  1. On March 1, 2024, the reporting person was granted 5,877 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. On March 1, 2025, the reporting person was granted 5,899 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 1,967 vested shares, receipt of 590 shares of common stock was deferred pursuant to the reporting person's election under the Company's deferred compensation plan (the "Plan"). Payment of tax liability by withholding securities incident to vesting of RSUs. In connection with the March 1, 2026 vesting of RSUs previously granted on March 1, 2023, the reporting person's receipt of 437 shares of common stock was deferred pursuant to the reporting person's election under the Plan, resulting in the reporting person's receipt of 437 shares of phantom stock. Amount includes 29.832 shares acquired through the Dividend Reinvestment Plan. The numbers reported herein are rounded to the nearest number. 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. 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. 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. Represents 437 shares of phantom stock received as a result of the deferral of 437 RSUs previously granted on March 1, 2023 and reported in Table 1 and 590 shares of phantom stock received as a result of the deferral of 590 RSUs previously granted on March 1, 2025 and reported on Table 2.
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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 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, General Counsel
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 1,959(1) A (1) 13,642 D
Common Stock 03/01/2026 M 1,377(2) A (2) 15,019 D
Common Stock 03/01/2026 F 2,033(3) D $335.57 12,986 D
Common Stock 03/01/2026 D 437 D (4) 12,579(5) 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 1,959 (1) (1) Common Stock 1,959 $0 1,959 D
Restricted Stock Units (2) 03/01/2026 M 1,967 (2) (2) Common Stock 1,967 $0 3,932 D
Restricted Stock Units $0 03/01/2026 A 2,656 (6) (6) Common Stock 2,656 $0 2,656 D
Performance Units $0 03/01/2026 A V 2,655 (7) (7) Common Stock 2,655 $0 2,655 D
Phantom Stock (8) 03/01/2026 A 1,027(9) (8) (8) Common Stock 1,027 $0 4,051 D
Explanation of Responses:
1. On March 1, 2024, the reporting person was granted 5,877 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.
2. On March 1, 2025, the reporting person was granted 5,899 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 1,967 vested shares, receipt of 590 shares of common stock was deferred pursuant to the reporting person's election under the Company's deferred compensation plan (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, the reporting person's receipt of 437 shares of common stock was deferred pursuant to the reporting person's election under the Plan, resulting in the reporting person's receipt of 437 shares of phantom stock.
5. Amount includes 29.832 shares acquired through the Dividend Reinvestment Plan. The numbers reported herein are rounded to the nearest number.
6. 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.
7. 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.
8. 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.
9. Represents 437 shares of phantom stock received as a result of the deferral of 437 RSUs previously granted on March 1, 2023 and reported in Table 1 and 590 shares of phantom stock received as a result of the deferral of 590 RSUs previously granted on March 1, 2025 and reported on Table 2.
Elizabeth Vonne 03/03/2026
** 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.
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FAQ

What insider transactions did AEIS EVP and General Counsel Vonne Karpinski report?

Vonne Karpinski reported RSU vesting, new equity awards, and related share dispositions. She received common stock from RSU exercises, new RSUs, performance units, and phantom stock, and delivered shares back to cover taxes and to defer portions into the company’s deferred compensation plan.

How many Advanced Energy (AEIS) shares did Vonne Karpinski acquire through RSU vesting?

Karpinski acquired common stock primarily through RSU vesting and conversion, including 1,959 and 1,377 shares at $0.00 per share. These shares resulted from previously granted RSUs that vested on March 1, 2026, converting into common stock on a one-for-one basis under the company’s plans.

What new equity awards did Vonne Karpinski receive from Advanced Energy (AEIS)?

She received 2,656 restricted stock units, 2,655 performance units, and 1,027 shares of phantom stock, all at $0.00 per share. The RSUs vest in three equal installments, while the performance units vest based on three-year performance metrics, and phantom stock follows deferred compensation plan elections.

Were any of Vonne Karpinski’s AEIS share dispositions open-market sales?

The reported dispositions were not open-market sales. They consisted of 2,033 shares used to pay tax liabilities tied to RSU vesting and 437 shares transferred to the issuer due to a deferral election, which generated an equivalent amount of phantom stock under the deferred compensation plan.

How does the phantom stock reported by Vonne Karpinski in AEIS work?

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

What performance conditions apply to Vonne Karpinski’s AEIS performance units?

The performance units were issued at 100% of target, with a three-year performance period. They will vest in whole or in part depending on achievement of performance metrics, and any portion not vested and released by the end of the three-year period will be canceled under the long-term incentive plan.

From which plans did Vonne Karpinski’s AEIS equity awards and phantom stock arise?

Her RSUs and performance units were granted under Advanced Energy’s Amended and Restated 2023 Omnibus Incentive Plan. Phantom stock and certain deferrals arose under the company’s deferred compensation plan, which allows deferral of vested RSUs into phantom stock with later share or cash settlement.