Advanced Energy Industries, Inc. (AEIS) Ownership
AEIS ownership summary
as of October 18, 2026- Institutions
- 103.2% of shares outstanding
- Insiders
- 1.06% of shares outstanding
- Shares outstanding
- 40.1M
- Float
- 39.6M shares available to trade
- Short interest
- 6.27% 1.8M shares short
- Days to cover
- 3.52 short interest up 0.6% vs prior month
- Institutions 103.24%
- Insiders 1.06%
AEIS top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 11.55% | 4.6M | $1.10B | −1.8M (−28.5%) | June 30, 2026 |
| 2 | Vanguard Portfolio Management, LLC | 5.35% | 2.1M | $510.3M | −175,718 (−7.6%) | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 4.28% | 1.7M | $408.0M | +21,649 (+1.3%) | June 30, 2026 |
| 4 | Ameriprise Financial Inc | 3.89% | 1.6M | $371.3M | +249,103 (+19.0%) | June 30, 2026 |
| 5 | FMR Inc | 3.54% | 1.4M | $337.3M | −169,775 (−10.7%) | June 30, 2026 |
| 6 | State Street Corp | 3.18% | 1.3M | $302.9M | −178,539 (−12.3%) | June 30, 2026 |
| 7 | Amvescap Plc. | 2.97% | 1.2M | $282.9M | −644,480 (−35.2%) | June 30, 2026 |
| 8 | Bank of America Corp | 2.56% | 1.0M | $244.1M | −35,726 (−3.4%) | June 30, 2026 |
| 9 | Earnest Partners LLC | 2.38% | 954K | $227.2M | −272,225 (−22.2%) | June 30, 2026 |
| 10 | Geode Capital Management, LLC | 2.34% | 938K | $223.3M | −181,998 (−16.2%) | June 30, 2026 |
| 11 | Jane Street Group LLC | 2.04% | 816K | $194.2M | +701,257 (+612.9%) | June 30, 2026 |
| 12 | Franklin Templeton Inc | 1.71% | 686K | $163.4M | +153,905 (+28.9%) | June 30, 2026 |
| 13 | Dimensional Fund Advisors, Inc. | 1.64% | 656K | $156.1M | +3,477 (+0.5%) | June 30, 2026 |
| 14 | D. E. Shaw & Co LP | 1.46% | 586K | $139.4M | +583,973 (+36,498.3%) | June 30, 2026 |
| 15 | GW&K Investment Management, LLC | 1.44% | 578K | $137.6M | −23,271 (−3.9%) | June 30, 2026 |
| 16 | Wellington Management Company LLP | 1.27% | 509K | $121.2M | +121,614 (+31.4%) | June 30, 2026 |
| 17 | NORGES BANK | 1.21% | 487K | $115.8M | −102,818 (−17.4%) | June 30, 2026 |
| 18 | AQR Capital Management LLC | 1.20% | 479K | $114.0M | +274,808 (+134.7%) | June 30, 2026 |
| 19 | Manufacturers Life Insurance Co | 1.11% | 446K | $106.1M | +217,739 (+95.5%) | June 30, 2026 |
| 20 | Neuberger Berman Group LLC | 1.04% | 415K | $98.7M | −168,687 (−28.9%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 9 holders added 2.3M shares and 11 cut 3.8M.
AEIS top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Mid-Cap ETF | 3.56% | 1.4M | $339.6M | −504 (−0.0%) | September 30, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 3.02% | 1.2M | $287.8M | −1,337 (−0.1%) | August 31, 2026 |
| 3 | Columbia Seligman Tech & Info A | 2.35% | 941K | $224.1M | +20,750 (+2.3%) | August 31, 2026 |
| 4 | Vanguard Small Cap Index | 2.14% | 857K | $203.9M | −18,630 (−2.1%) | September 30, 2026 |
| 5 | Vanguard Information Technology ETF | 1.22% | 488K | $116.1M | +1,123 (+0.2%) | September 30, 2026 |
| 6 | Vanguard MStar Small Cap Growth Indx Inv | 1.19% | 476K | $113.4M | −26,039 (−5.2%) | September 30, 2026 |
| 7 | Vanguard Explorer Inv | 0.75% | 301K | $71.6M | +244,405 (+433.1%) | June 30, 2026 |
| 8 | State Street® SPDR® S&P MIDCAP 400® ETF | 0.74% | 296K | $70.5M | +18,001 (+6.5%) | September 30, 2026 |
| 9 | Strategic Advisers Fidelity US TtlStk | 0.68% | 273K | $65.1M | +3,417 (+1.3%) | August 31, 2026 |
| 10 | FullerThaler Behavioral Sm-Cp Gr R6 | 0.68% | 271K | $64.5M | +23,700 (+9.6%) | March 31, 2026 |
| 11 | Invesco S&P MidCap Momentum ETF | 0.67% | 266K | $63.4M | — | September 30, 2026 |
| 12 | iShares S&P Mid-Cap 400 Growth ETF | 0.58% | 231K | $55.0M | −246 (−0.1%) | September 30, 2026 |
| 13 | Harbor Small Cap Value Instl | 0.53% | 214K | $51.0M | −4,143 (−1.9%) | September 30, 2026 |
| 14 | State Street SPDR Port S&P 400 Md CpETF | 0.53% | 212K | $50.4M | −296 (−0.1%) | September 30, 2026 |
| 15 | iShares Russell Mid-Cap Growth ETF | 0.50% | 201K | $47.9M | −216 (−0.1%) | September 30, 2026 |
| 16 | Neuberger Genesis Inv | 0.48% | 194K | $46.1M | −15,853 (−7.6%) | September 30, 2026 |
| 17 | TD North American Dividend - I | 0.48% | 190K | $45.3M | −23,390 (−10.9%) | June 30, 2026 |
| 18 | Fidelity Extended Market Index | 0.46% | 185K | $44.1M | −2,394 (−1.3%) | August 31, 2026 |
| 19 | BNP Paribas Disrpt Tech Cl D | 0.44% | 177K | $42.1M | +47,425 (+36.6%) | August 31, 2026 |
| 20 | Putnam Small Cap Growth A | 0.42% | 168K | $39.9M | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
AEIS insider transactions
latest 14| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-16 | Elizabeth Karpinski Vonne | Sell | $369.40 | 966 | $356,840 |
| 2026-03-27 | Gilbert Ray Cisneros, Jr. | Sell | $310.76 | — | — |
| 2026-03-18 | Paul R Oldham | Sell | $315.99 | 4,314 | $1.4M |
| 2026-03-13 | Brian Shirley | Sell | $310.19 | 1,234 | $382,774 |
| 2026-03-10 | Stephen Douglas Kelley | Sell | $316.62 | 50,000 | $15.8M |
| 2026-03-03 | Gilbert Ray Cisneros, Jr. | Buy | $322.47 | — | — |
| 2026-02-23 | Elizabeth Karpinski Vonne | Sell | $328.42 | 964 | $316,597 |
| 2026-02-13 | Lanesha Minnix | Sell | $316.62 | 1,000 | $316,620 |
| 2026-01-20 | Gilbert Ray Cisneros, Jr. | Buy | $250.95 | — | — |
| 2025-12-04 | Tina Donikowski | Sell | $210.33 | 2,257 | $474,715 |
| 2025-11-19 | Paul R Oldham | Sell | $203.11 | 8,174 | $1.7M |
| 2025-08-13 | John Donaghey | Sell | $160.73 | 1,000 | $160,730 |
| 2025-07-09 | John Donaghey | Sell | $140.00 | 2,000 | $280,000 |
| 2025-06-20 | Paul R Oldham | Sell | $131.29 | 1,173 | $154,003 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
AEIS shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns AEIS
Institutional investors own 103.2% of Advanced Energy Industries's shares and insiders 1.06%. The largest holder is BlackRock Inc with 11.55% of the shares (4.6M), as of June 30, 2026. Among the top 20 institutions, 9 added shares and 11 reduced their stake in the latest filings. Short interest is 6.27% of the float, or 3.52 days of average trading volume. The share count fell 1.4% since 2014.
Related: AEIS analyst forecast, AEIS key metrics, AEIS dividend history. See the AEIS stock overview for the latest quote and news.
AEIS ownership FAQ
Who owns the most Advanced Energy Industries stock?
The largest shareholders of Advanced Energy Industries are BlackRock Inc (11.55%), Vanguard Portfolio Management, LLC (5.35%), Vanguard Capital Management, LLC (4.28%), Ameriprise Financial Inc (3.89%), FMR Inc (3.54%).
What percentage of Advanced Energy Industries is owned by institutions?
Institutions hold 103.2% of Advanced Energy Industries's shares outstanding; insiders hold 1.06%.
Which funds own Advanced Energy Industries?
The largest fund holders of Advanced Energy Industries are iShares Core S&P Mid-Cap ETF (3.56%), Vanguard MStar Total Stk Mkt Idx Invest (3.02%), Columbia Seligman Tech & Info A (2.35%), Vanguard Small Cap Index (2.14%), Vanguard Information Technology ETF (1.22%).
What is Advanced Energy Industries's short interest?
1.8M shares of Advanced Energy Industries were sold short, 6.27% of the float; at the average daily volume it would take 3.52 days to cover.
Are insiders buying or selling Advanced Energy Industries?
Of the latest 14 reported insider transactions in Advanced Energy Industries (since June 20, 2025), 2 were purchases and 12 were sales.
How many shares of Advanced Energy Industries are outstanding?
Advanced Energy Industries has 40.1M shares outstanding, of which 39.6M are in the public float.