Advanced Energy Industries
AEIS · NASDAQ
Who owns AEIS
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 38.6% of AEIS’s shares.
- BlackRock Institutional Trust Company, N.A.9.7%
- Vanguard Portfolio Management, LLC5.6%
- Vanguard Capital Management, LLC4.5%
- Columbia Threadneedle Investments (US)3.8%
- Next 6 largest institutions15.0%
- All other shareholders61.4%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 3.69M | 9.70% |
| Vanguard Portfolio Management, LLC | 2.14M | 5.64% |
| Vanguard Capital Management, LLC | 1.71M | 4.51% |
| Columbia Threadneedle Investments (US) | 1.44M | 3.78% |
| State Street Investment Management (US) | 1.27M | 3.35% |
| Fidelity Management & Research Company LLC | 1.01M | 2.66% |
| EARNEST Partners, LLC | 954.26K | 2.51% |
| Geode Capital Management, L.L.C. | 938.24K | 2.47% |
| Jane Street Capital, L.L.C. | 815.68K | 2.14% |
| Invesco Advisers, Inc. | 696.80K | 1.83% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| iShares Core S&P Mid-Cap ETF | 1.33M | 3.50% |
| Vanguard Total Stock Market Index Fund | 1.21M | 3.18% |
| Columbia Seligman Technology & Info Fd | 920.66K | 2.42% |
| Vanguard Small-Cap Index Fund | 873.75K | 2.30% |
| Vanguard Small-Cap Growth Index Fund | 506.00K | 1.33% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $9.27M (25 trades) of AEIS on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| DelSanto Anne | Sale | 270 | $82.29K |
| Vonne Elizabeth Karpinski | Sale | 632 | $182.10K |
| DelSanto Anne | Sale | 265 | $76.36K |
| Vonne Elizabeth Karpinski | Sale | 907 | $263.08K |
| Vonne Elizabeth Karpinski | Sale | 908 | $302.07K |
| Acebedo Eduardo Bernal | Option exercise | 6.04K | — |
| Acebedo Eduardo Bernal | Sale | 637 | $205.52K |
| Acebedo Eduardo Bernal | Sale | 120 | $39.65K |
| Acebedo Eduardo Bernal | Sale | 280 | $92.05K |
| Acebedo Eduardo Bernal | Sale | 407 | $133.42K |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Gil CisnerosHouse | Sale | $1K–$15K | Mar 27, 2026 |
| Gil CisnerosHouse | Purchase | $1K–$15K | Mar 3, 2026 |
| Gil CisnerosHouse | Purchase | $1K–$15K | Jan 20, 2026 |
Short interest
Settled Sep 30, 2026
- Shares short
- 1.83M
- Days to cover
- 3.43
- % of shares outstanding
- 4.81%
- Average daily volume
- 533.63K
- Change since last report
- +0.6%
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