# EDGAR Filing Document

**Accession Number:** 0000927003
**File Stem:** 0001699662-26-000002
**Filing Date:** 2026-3
**Character Count:** 7814
**Document Hash:** 000bc1615cf3551510478cdb8a168222
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001699662-26-000002.hdr.sgml**: 20260303

**ACCESSION NUMBER**: 0001699662-26-000002

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260301

**FILED AS OF DATE**: 20260303

**DATE AS OF CHANGE**: 20260303

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** COLPITTS BERNARD RAYMOND JR
- **CENTRAL INDEX KEY:** 0001699662

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-26966
- **FILM NUMBER:** 26717757

**MAIL ADDRESS:**
- **STREET 1:** 1595 WYNKOOP ST
- **STREET 2:** SUITE 800
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80202
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ADVANCED ENERGY INDUSTRIES INC
- **CENTRAL INDEX KEY:** 0000927003
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRONIC COMPONENTS, NEC [3679]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 840846841
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** ATTN:  PAUL OLDHAM
- **STREET 2:** 1595 WYNKOOP ST, SUITE 800
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80202
- **BUSINESS PHONE:** 9704076626

**MAIL ADDRESS:**
- **STREET 1:** ATTN:  PAUL OLDHAM
- **STREET 2:** 1595 WYNKOOP ST, SUITE 800
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80202

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>COLPITTS BERNARD RAYMOND JR<br><sub>(Last) (First) (Middle)</sub><br>1595 WYNKOOP ST<br>STE 800<br><sub>(Street)</sub><br>DENVER, CO 80202<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-03-01 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_SVP, Chief Accounting Officer_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>ADVANCED ENERGY INDUSTRIES INC [ AEIS ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2026-03-01 |  | M |  | 979 | A | <sup>(1)</sup> | 2626 | D |  |
| Common Stock | 2026-03-01 |  | M |  | 983 | A | <sup>(2)</sup> | 3609 | D |  |
| Common Stock | 2026-03-01 |  | F |  | 858<sup>(3)</sup> | D | $335.57 | 2751 | D |  |
| Common Stock | 2026-03-03 |  | S<sup>(4)</sup> |  | 1104 | D | $325.60 | 1647<sup>(5)</sup> | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Restricted Stock Units | <sup>(1)</sup> | 2026-03-01 |  | M |  |  | 979 | <sup>(1)</sup> | <sup>(1)</sup> | Common Stock | 979 | $0 | 979 | D |  |
| Restricted Stock Units | <sup>(2)</sup> | 2026-03-01 |  | M |  |  | 983 | <sup>(2)</sup> | <sup>(2)</sup> | Common Stock | 983 | $0 | 1966 | D |  |
| Restricted Stock Units | $0 | 2026-03-01 |  | A |  | 1328 |  | <sup>(6)</sup> | <sup>(6)</sup> | Common Stock | 1328 | $0 | 1328 | D |  |
| Performance Units | $0 | 2026-03-01 |  | A |  | 1327 |  | <sup>(7)</sup> | <sup>(7)</sup> | Common Stock | 1327 | $0 | 1327 | D |  |

---

### Footnotes:

(1) On March 1, 2024, the reporting person was granted 2,938 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 2,949 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.

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

(4) The reported sale was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 19, 2025.

(5) Represents 1,647 unvested restricted stock units.

(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.

**Signature:** /s/ Elizabeth Vonne - Attorney-in-Fact  
**Date:** 2026-03-03

### Remarks:

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.**