Stephen Douglas Kelley
President and CEO at Advanced Energy Industries Inc.
Sits on 2 boards. Last updated September 28, 2026
Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 8 years
- Director since
- 2023
8 years of board service in total across 2 boards, counting each seat separately. Longest: Onto Innovation Inc., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Onto Innovation Inc. May 20, 202698.9%
-
Onto Innovation Inc. May 21, 202599.6%
-
Advanced Energy Industries Inc. April 24, 202599.0%
-
Onto Innovation Inc. May 22, 202498.0%
-
Advanced Energy Industries Inc. April 25, 202499.8%
-
Onto Innovation Inc. May 9, 202399.9%
-
Advanced Energy Industries Inc. April 27, 202399.8%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| May 20, 2026 | Onto Innovation Inc. | Grant or award | +761 | — | — |
| Mar 10, 2026 | Advanced Energy Industries Inc. | Open-market sale | −543 | $305.48 | $165,876 |
| Mar 10, 2026 | Advanced Energy Industries Inc. | Open-market sale | −876 | $306.87 | $268,818 |
| Mar 10, 2026 | Advanced Energy Industries Inc. | Open-market sale | −1,112 | $306.96 | $341,340 |
| Mar 10, 2026 | Advanced Energy Industries Inc. | Open-market sale | −1,224 | $309.77 | $379,158 |
| Mar 10, 2026 | Advanced Energy Industries Inc. | Open-market sale | −3,330 | $311.88 | $1,038,560 |
| Mar 10, 2026 | Advanced Energy Industries Inc. | Open-market sale | −3,718 | $313.80 | $1,166,708 |
| Mar 10, 2026 | Advanced Energy Industries Inc. | Open-market sale | −5,678 | $314.82 | $1,787,548 |
| Mar 10, 2026 | Advanced Energy Industries Inc. | Open-market sale | −2,312 | $315.88 | $730,315 |
| Mar 10, 2026 | Advanced Energy Industries Inc. | Open-market sale | −2,309 | $317.21 | $732,438 |
| Mar 10, 2026 | Advanced Energy Industries Inc. | Open-market sale | −7,229 | $317.94 | $2,298,388 |
| Mar 10, 2026 | Advanced Energy Industries Inc. | Open-market sale | −13,278 | $319.05 | $4,236,346 |
| Mar 10, 2026 | Advanced Energy Industries Inc. | Open-market sale | −7,535 | $319.90 | $2,410,447 |
| Mar 10, 2026 | Advanced Energy Industries Inc. | Open-market sale | −856 | $321.13 | $274,887 |
| Mar 1, 2026 | Advanced Energy Industries Inc. | Option exercise | +10,449 | — | — |
Questions about Stephen Douglas Kelley
What boards is Stephen Douglas Kelley on?
Stephen Douglas Kelley sits on the boards of Advanced Energy Industries Inc. and Onto Innovation Inc.
What company is Stephen Douglas Kelley the CEO of?
Stephen Douglas Kelley is President and CEO of Advanced Energy Industries Inc.
How long has Stephen Douglas Kelley served on boards?
Our records show at least 8 years of board service across 2 boards, the earliest from 2023.
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