AEIS · NASDAQ · Hardware, Equipment & Parts

Advanced Energy Industries

Precision power systems for semiconductor tools, AI data centers, medical equipment, and industrial applications.

$273.50
After-hours close+0.70 (+0.25%)
At close$272.81(−4.98%)

Breakdown13F · Form 4

Institutions 142.91%Insiders 0.76%

A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.

Shares outstanding 40.05M · Float 39.62M · 98.9% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
BlackRock, Inc.4.63M11.55%13FAug 7, 2026
Vanguard Portfolio Management LLC2.14M5.35%13FAug 13, 2026
Vanguard Capital Management LLC1.71M4.28%13FAug 13, 2026
Ameriprise Financial Inc1.56M3.89%13FAug 14, 2026
FMR LLC1.42M3.54%13FAug 13, 2026

Institutions13F, as of Jun 30, 2026

700 holders · 57.23M shares · 175 new positions · 386 increased · 225 reduced · 79 closed

HolderShares% outstandingChg q/qFiled
BlackRock, Inc.4.63M11.55%−1.84MAug 7, 2026
Vanguard Portfolio Management LLC2.14M5.35%−175.7KAug 13, 2026
Vanguard Capital Management LLC1.71M4.28%+21.6KAug 13, 2026
Ameriprise Financial Inc1.56M3.89%+249.1KAug 14, 2026
FMR LLC1.42M3.54%−169.8KAug 13, 2026
State Street Corp1.27M3.18%−178.5KAug 7, 2026
Invesco Ltd.1.19M2.97%−644.5KAug 14, 2026
Bank of America Corp /DE/1.03M2.56%−35.7KAug 14, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
BlackRock, Inc.11.90%4.51M13GApr 29, 2026
Vanguard Portfolio Management6.21%2.35M13GApr 28, 2026
Vanguard Capital Management5.23%1.98M13GApr 29, 2026
BlackRock Portfolio Management LLC5.20%1.96M13GMay 1, 2026
FMR LLC5.20%1.96M13GFeb 5, 2026

InsidersForm 4

InsiderRoleShares% outstandingFiled
Stephen Douglas Kelleydirector, officer: President and CEO80.4K0.20%Mar 12, 2026
Grant H. Bearddirector60.2K0.15%Aug 25, 2026
John A. Roushdirector29.9K0.07%May 5, 2026
Eduardo Bernal Acebedoofficer: EVP and COO23.1K0.06%Aug 20, 2026
Paul R. Oldhamofficer: EVP, CFO22.2K0.06%Mar 19, 2026
John Donagheyofficer: EVP, Global Sales16.3K0.04%Mar 3, 2026
Brian Shirleydirector14.6K0.04%Jun 17, 2026
Tina Donikowskidirector10.6K0.03%May 5, 2026
Reed Daviddirector9.9K0.02%May 5, 2026
Elizabeth Karpinski Vonneofficer: EVP, General Counsel9.8K0.02%Aug 27, 2026

1 ten-percent owner holds 4.28M shares by Form 4, outside the officers-and-directors figure above · 30 people have not refiled in the last 18 months (3.30M shares), so they are not in the figure above

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Aug 27, 2026
Elizabeth Karpinski Vonneofficer: EVP, General Counsel
Sale907$290.059,805
Aug 18, 2026
Eduardo Bernal Acebedoofficer: EVP and COO
Sale · 18 lots24,771$315.4823,109
Aug 18, 2026
Elizabeth Karpinski Vonneofficer: EVP, General Counsel
Sale908$332.6810,712
Aug 5, 2026
Anne DelSantodirector
Sale270$345.008,217
Jun 15, 2026
Brian Shirleydirector
Sale1,234$372.356,663
Apr 16, 2026
Elizabeth Karpinski Vonneofficer: EVP, General Counsel
Sale966$369.4011,616
Apr 15, 2026
Anne DelSantodirector
Sale240$380.526,174
Mar 18, 2026
Paul R. Oldhamofficer: EVP, CFO
Sale4,314$315.9922,217
Mar 16, 2026
Anne DelSantodirector
Sale240$312.596,414
Mar 13, 2026
Brian Shirleydirector
Sale1,234$310.195,584

CongressHouse and Senate disclosures

MemberTypeAmountOwnerTradedDisclosed
Rep. Gilbert Cisneros · CA31Sale$1,001 – $15,000Mar 27, 2026Apr 8, 2026
Rep. Gilbert Cisneros · CA31Purchase$1,001 – $15,000Mar 3, 2026Apr 8, 2026