AEIS SEC Filing News — Advanced Energy Industries, Inc.

Latest SEC filings for Advanced Energy Industries, Inc. (AEIS) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-10-07.

Advanced Energy Industries, Inc. provides precision power conversion, measurement, and control solutions in the United States, Asia, Europe, and internationally. The company's plasma power products offer solutions to enable innovation for semiconductor and thin film plasma processes, such as dry etch and deposition. It also provides high and low voltage power products used in a range of applications, such as semiconductor equipment, industrial production, medical and life science equipment, data…
Sector: Industrials Industry: Electrical Equipment & Parts Market Cap: $9.6B
20
Total Filings
0
Bullish Classifications
9
Bearish Classifications
9
Insider Transactions
2
Material Events (8-K)
1
Periodic Reports
Rule-based classifications for AEIS currently lean bearish. Of the 20 filing records displayed, 9 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.
AEIS Filing Activity Snapshot 2026-06-12 — 2026-10-07
Insider Transactions (Form 4)
0 buys vs 8 sells
Net insider selling in this period — insiders sell for many reasons beyond conviction.
Largest Form 144 Filing
$7.82M
EDUARDO BERNAL ACEBEDO · 2026-08-18
24,771 shares · Form 144
Form 144 Notices
8
Proposed insider sales filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.
Insider Transactions 9 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 9 filings in this group are Form 4s for Advanced Energy Industries, Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 9 insider filings shown, the breakdown is 8 open-market sale and 1 gift. 8 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Open-market sale ×8
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Gift ×1
Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.
Form 4 Open-market sale Insider Selling 2026-10-07

AEIS insider DelSanto Anne (Director) sold 270 shares (~$82.3K)

DelSanto Anne, listed as Director at ADVANCED ENERGY INDUSTRIES INC, reported an open-market sale of 270 AEIS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 270 $304.76 $82.3K
Filing: Form 4 (Insider Transaction) Insider: DelSanto Anne (Director) Shares: 270 Est. Value: $82.3K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-09-10

AEIS insider Vonne Elizabeth Karpinski (EVP, General Counsel) sold 632 shares (~$182.1K)

Vonne Elizabeth Karpinski, listed as EVP, General Counsel at ADVANCED ENERGY INDUSTRIES INC, reported an open-market sale of 632 AEIS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 632 $288.14 $182.1K
Filing: Form 4 (Insider Transaction) Insider: Vonne Elizabeth Karpinski (EVP, General Counsel) Shares: 632 Est. Value: $182.1K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-09-10

AEIS insider DelSanto Anne (Director) sold 265 shares (~$76.4K)

DelSanto Anne, listed as Director at ADVANCED ENERGY INDUSTRIES INC, reported an open-market sale of 265 AEIS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 265 $288.14 $76.4K
Filing: Form 4 (Insider Transaction) Insider: DelSanto Anne (Director) Shares: 265 Est. Value: $76.4K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-27

AEIS insider Vonne Elizabeth Karpinski (EVP, General Counsel) sold 907 shares (~$263.1K)

Vonne Elizabeth Karpinski, listed as EVP, General Counsel at ADVANCED ENERGY INDUSTRIES INC, reported an open-market sale of 907 AEIS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 907 $290.05 $263.1K
Filing: Form 4 (Insider Transaction) Insider: Vonne Elizabeth Karpinski (EVP, General Counsel) Shares: 907 Est. Value: $263.1K
View on SEC EDGAR → Open Filing Document →
Form 4 Gift Tax / Compensation Filing 2026-08-25

AEIS insider Form 4 filed for equity award, exercise, or tax withholding

BEARD GRANT H (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code Nature Shares Price Value
G Gift 9,000 — —
Filing: Form 4 (Insider Transaction) Insider: BEARD GRANT H (Director) Shares: 9,000
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-20

AEIS insider Acebedo Eduardo Bernal (EVP and COO) sold 24,771 shares (~$7.81M)

Acebedo Eduardo Bernal, listed as EVP and COO at ADVANCED ENERGY INDUSTRIES INC, reported an open-market sale of 24,771 AEIS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
M Option exercise 6,042 $85.97 $519.4K
S Open-market sale 406 $309.73 $125.8K
S Open-market sale 568 $310.75 $176.5K
S Open-market sale 2,951 $311.80 $920.1K
S Open-market sale 3,998 $312.65 $1.25M
S Open-market sale 5,062 $313.82 $1.59M
S Open-market sale 3,103 $314.92 $977.2K
S Open-market sale 2,180 $315.66 $688.1K
S Open-market sale 1,280 $316.92 $405.7K
S Open-market sale 480 $318.62 $152.9K
S Open-market sale 1,403 $319.41 $448.1K
S Open-market sale 720 $320.81 $231.0K
S Open-market sale 416 $322.14 $134.0K
S Open-market sale 425 $323.28 $137.4K
S Open-market sale 335 $324.44 $108.7K
S Open-market sale 407 $327.82 $133.4K
S Open-market sale 280 $328.74 $92.0K
S Open-market sale 120 $330.45 $39.7K
S Open-market sale 637 $322.64 $205.5K
M Option exercise derivative · Employee Stock Option (Right to Buy) 6,042 — —
Filing: Form 4 (Insider Transaction) Insider: Acebedo Eduardo Bernal (EVP and COO) Shares: 24,771 Est. Value: $7.81M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-19

AEIS insider Vonne Elizabeth Karpinski (EVP, General Counsel) sold 908 shares (~$302.1K)

Vonne Elizabeth Karpinski, listed as EVP, General Counsel at ADVANCED ENERGY INDUSTRIES INC, reported an open-market sale of 908 AEIS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 908 $332.68 $302.1K
Filing: Form 4 (Insider Transaction) Insider: Vonne Elizabeth Karpinski (EVP, General Counsel) Shares: 908 Est. Value: $302.1K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-05

AEIS insider DelSanto Anne (Director) sold 270 shares (~$93.2K)

DelSanto Anne, listed as Director at ADVANCED ENERGY INDUSTRIES INC, reported an open-market sale of 270 AEIS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 270 $345.00 $93.2K
Filing: Form 4 (Insider Transaction) Insider: DelSanto Anne (Director) Shares: 270 Est. Value: $93.2K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-06-17

AEIS insider Shirley Brian (Director) sold 1,234 shares (~$459.5K)

Shirley Brian, listed as Director at ADVANCED ENERGY INDUSTRIES INC, reported an open-market sale of 1,234 AEIS shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 1,234 $372.35 $459.5K
Filing: Form 4 (Insider Transaction) Insider: Shirley Brian (Director) Shares: 1,234 Est. Value: $459.5K
View on SEC EDGAR → Open Filing Document →
Proposed Insider Sales 8 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. Advanced Energy Industries, Inc. has 8 such notices in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-10-05

AEIS Form 144 filed for proposed insider sale by DelSanto Anne (270 shares) ~$82.3K

DelSanto Anne filed a Form 144 with the SEC indicating intent to sell AEIS (ADVANCED ENERGY INDUSTRIES INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: DelSanto Anne Shares: 270 Est. Value: $82.3K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-09-08

AEIS Form 144 filed for proposed insider sale by ELIZABETH K VONNE (632 shares) ~$182.1K

ELIZABETH K VONNE filed a Form 144 with the SEC indicating intent to sell AEIS (ADVANCED ENERGY INDUSTRIES INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: ELIZABETH K VONNE Shares: 632 Est. Value: $182.1K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-09-08

AEIS Form 144 filed for proposed insider sale by DelSanto Anne (265 shares) ~$76.4K

DelSanto Anne filed a Form 144 with the SEC indicating intent to sell AEIS (ADVANCED ENERGY INDUSTRIES INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: DelSanto Anne Shares: 265 Est. Value: $76.4K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-27

AEIS Form 144 filed for proposed insider sale by ELIZABETH K VONNE (907 shares) ~$263.1K

ELIZABETH K VONNE filed a Form 144 with the SEC indicating intent to sell AEIS (ADVANCED ENERGY INDUSTRIES INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: ELIZABETH K VONNE Shares: 907 Est. Value: $263.1K
View on SEC EDGAR → Open Filing Document →
Form 144 Large Proposed Insider Sale 2026-08-18

AEIS Form 144 filed for proposed insider sale by EDUARDO BERNAL ACEBEDO (24,771 shares) ~$7.82M

EDUARDO BERNAL ACEBEDO filed a Form 144 with the SEC indicating intent to sell AEIS (ADVANCED ENERGY INDUSTRIES INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4. The proposed dollar value is large enough to merit attention.

Filing: Form 144 (Proposed Sale Notice) Insider: EDUARDO BERNAL ACEBEDO Shares: 24,771 Est. Value: $7.82M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-18

AEIS Form 144 filed for proposed insider sale by ELIZABETH K VONNE (908 shares) ~$302.1K

ELIZABETH K VONNE filed a Form 144 with the SEC indicating intent to sell AEIS (ADVANCED ENERGY INDUSTRIES INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: ELIZABETH K VONNE Shares: 908 Est. Value: $302.1K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-05

AEIS Form 144 filed for proposed insider sale by DelSanto Anne (270 shares) ~$93.2K

DelSanto Anne filed a Form 144 with the SEC indicating intent to sell AEIS (ADVANCED ENERGY INDUSTRIES INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: DelSanto Anne Shares: 270 Est. Value: $93.2K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-06-15

AEIS Form 144 filed for proposed insider sale by BRIAN SHIRLEY (1,234 shares) ~$459.5K

BRIAN SHIRLEY filed a Form 144 with the SEC indicating intent to sell AEIS (ADVANCED ENERGY INDUSTRIES INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: BRIAN SHIRLEY Shares: 1,234 Est. Value: $459.5K
View on SEC EDGAR → Open Filing Document →
Material Events 2 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 2 in this period for Advanced Energy Industries, Inc. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-08-03

AEIS filed 8-K — material company event

ADVANCED ENERGY INDUSTRIES INC filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Form 8-K Material Company Update 2026-06-12

AEIS filed 8-K — material company event

ADVANCED ENERGY INDUSTRIES INC filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Periodic Reports 1 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 1 quarterly report (10-Q) for Advanced Energy Industries, Inc.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-08-03

AEIS filed Quarterly Report (10-Q)

ADVANCED ENERGY INDUSTRIES INC filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)
View on SEC EDGAR → Open Filing Document →

How we classify Advanced Energy Industries, Inc.'s filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on AEIS. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — AEIS SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.
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