Form 4 for AEIS ADVANCED ENERGY INDUSTRIES INC
Accepted 2026-03-12 00:00:00 ET · period of report 2026-03-10 · accession 0001443674-26-000004 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MT | 2026-03-12 | 2026-03-10 | AEIS | Kelley Stephen Douglas | Pres, CEO, Dir | S - Sale | $316.62 | -50.0K | 123.3K | -29% | -$15.83M |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-03-10 | S | D | 7,535 | $319.90 | 81,232 | D | — | — | (F12) Represents the weighted average sale price. These shares were sold in multiple transactions at prices ranging from $319.74 to $320.41, inclusive. The reporting person undertakes to provide to the Company, any securityholder of the Company or SEC staff, upon request, full information regarding the number of shares sold at each price within the range specified herein. |
| 2 | Common | Common Stock | 2026-03-10 | S | D | 856 | $321.13 | 80,376 | D | — | — | (F13) Represents the weighted average sale price. These shares were sold in multiple transactions at prices ranging from $320.81 to $321.35, inclusive. The reporting person undertakes to provide to the Company, any securityholder of the Company or SEC staff, upon request, full information regarding the number of shares sold at each price within the range specified herein. |
| 3 | Common | Common Stock | 2026-03-10 | S | D | 543 | $305.48 | 129,833 | D | — | — | |
| 4 | Common | Common Stock | 2026-03-10 | S | D | 876 | $306.87 | 128,957 | D | — | — | (F2) Represents the weighted average sale price. These shares were sold in multiple transactions at prices ranging from $306.79 to $307.21, inclusive. The reporting person undertakes to provide to the Company, any securityholder of the Company or SEC staff, upon request, full information regarding the number of shares sold at each price within the range specified herein. |
| 5 | Common | Common Stock | 2026-03-10 | S | D | 1,112 | $306.96 | 127,845 | D | — | — | (F3) Represents the weighted average sale price. These shares were sold in multiple transactions at prices ranging from $307.89 to $308.00, inclusive. The reporting person undertakes to provide to the Company, any securityholder of the Company or SEC staff, upon request, full information regarding the number of shares sold at each price within the range specified herein. |
| 6 | Common | Common Stock | 2026-03-10 | S | D | 1,224 | $309.77 | 126,621 | D | — | — | (F4) Represents the weighted average sale price. These shares were sold in multiple transactions at prices ranging from $309.68 to $310.02, inclusive. The reporting person undertakes to provide to the Company, any securityholder of the Company or SEC staff, upon request, full information regarding the number of shares sold at each price within the range specified herein. |
| 7 | Common | Common Stock | 2026-03-10 | S | D | 13,278 | $319.05 | 88,767 | D | — | — | (F11) Represents the weighted average sale price. These shares were sold in multiple transactions at prices ranging from $318.69 to $319.62, inclusive. The reporting person undertakes to provide to the Company, any securityholder of the Company or SEC staff, upon request, full information regarding the number of shares sold at each price within the range specified herein. |
| 8 | Common | Common Stock | 2026-03-10 | S | D | 3,718 | $313.80 | 119,573 | D | — | — | (F6) Represents the weighted average sale price. These shares were sold in multiple transactions at prices ranging from $313.15 to $314.09, inclusive. The reporting person undertakes to provide to the Company, any securityholder of the Company or SEC staff, upon request, full information regarding the number of shares sold at each price within the range specified herein. |
| 9 | Common | Common Stock | 2026-03-10 | S | D | 5,678 | $314.82 | 113,895 | D | — | — | (F7) Represents the weighted average sale price. These shares were sold in multiple transactions at prices ranging from $314.28 to $315.05, inclusive. The reporting person undertakes to provide to the Company, any securityholder of the Company or SEC staff, upon request, full information regarding the number of shares sold at each price within the range specified herein. |
| 10 | Common | Common Stock | 2026-03-10 | S | D | 2,312 | $315.88 | 111,583 | D | — | — | (F8) Represents the weighted average sale price. These shares were sold in multiple transactions at prices ranging from $315.36 to $315.91, inclusive. The reporting person undertakes to provide to the Company, any securityholder of the Company or SEC staff, upon request, full information regarding the number of shares sold at each price within the range specified herein. |
| 11 | Common | Common Stock | 2026-03-10 | S | D | 2,309 | $317.21 | 109,274 | D | — | — | (F9) Represents the weighted average sale price. These shares were sold in multiple transactions at prices ranging from $316.56 to $317.50, inclusive. The reporting person undertakes to provide to the Company, any securityholder of the Company or SEC staff, upon request, full information regarding the number of shares sold at each price within the range specified herein. |
| 12 | Common | Common Stock | 2026-03-10 | S | D | 7,229 | $317.94 | 102,045 | D | — | — | (F10) Represents the weighted average sale price. These shares were sold in multiple transactions at prices ranging from $317.67 to $318.64, inclusive. The reporting person undertakes to provide to the Company, any securityholder of the Company or SEC staff, upon request, full information regarding the number of shares sold at each price within the range specified herein. |
| 13 | Common | Common Stock | 2026-03-10 | S | D | 3,330 | $311.88 | 123,291 | D | — | — | (F5) Represents the weighted average sale price. These shares were sold in multiple transactions at prices ranging from $311.81 to $312.19, inclusive. The reporting person undertakes to provide to the Company, any securityholder of the Company or SEC staff, upon request, full information regarding the number of shares sold at each price within the range specified herein. |