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AEIS in the 13F filings

Advanced Energy Inds · CUSIP 007973100

Sector · Technology hardware and equipment
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
30 Jun 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 3 Aug 2026
Managers listing it
40
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 11 listed it in both
Shares listed
8,836,024
combined, among listed positions
Reported value
$3.3bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 31 buyers (opened or added shares) and 10 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +848,673.

Managers listing AEIS in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

40 of 40 holders

ActionFiling
Fidelity (FMR LLC)1,416,875$528munder 0.1%Trimmed-169,77513 Aug 2026 (the filing on sec.gov)
Invesco Ltd1,188,258$443munder 0.1%Trimmed-644,48014 Aug 2026 (the filing on sec.gov)
Jane Street Group LLC815,680$304munder 0.1%Added+701,25714 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.585,573$218m0.10%Added+583,97314 Aug 2026 (the filing on sec.gov)
Wellington Management Group LLP509,090$190munder 0.1%Added+121,61414 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC478,794$178m0.06%Added+274,80814 Aug 2026 (the filing on sec.gov)
Neuberger Berman Group LLC414,656$155m0.10%Trimmed-168,68727 Oct 2026 (the filing on sec.gov)
Citadel Advisors LLC387,850$145munder 0.1%Newnew2 Sep 2026 (the filing on sec.gov)
Millennium Management LLC381,740$142m0.05%Added+78,56014 Aug 2026 (the filing on sec.gov)
MFS Investment Management375,982$140munder 0.1%Trimmed-30,1893 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP283,983$92munder 0.1%Trimmed-173,56014 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP241,232$90munder 0.1%Added+165,40014 Aug 2026 (the filing on sec.gov)
Arrowstreet Capital LP240,845$90munder 0.1%Trimmed-94,74613 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc219,468$82munder 0.1%Trimmed-34,92614 Aug 2026 (the filing on sec.gov)
Marshall Wace LLP204,788$76m0.06%Added+129,51713 Aug 2026 (the filing on sec.gov)
Acadian Asset Management LLC174,328$65m0.08%Added+81,65313 Aug 2026 (the filing on sec.gov)
Tudor Investment Corp126,182$47m0.07%Newnew14 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC103,429$39munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Renaissance Technologies LLC98,562$37m0.05%Added+96,24013 Aug 2026 (the filing on sec.gov)
First Eagle Investment Management LLC91,535$34m0.06%Added+9,7175 Aug 2026 (the filing on sec.gov)
Freestone Grove Partners LP87,213$33m0.21%Added+66,60714 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP74,131$28munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
PDT Partners LLC62,188$23m1.22%Added+58,88814 Aug 2026 (the filing on sec.gov)
Voloridge Investment Management LLC55,106$21m0.09%Newnew14 Aug 2026 (the filing on sec.gov)
Balyasny Asset Management LLC40,455$15munder 0.1%Added+29,67414 Aug 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q1 2026 to Q2 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (13)

Exited (2)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
4 in Q3 2024 to 26 in Q2 2026

Tracked managers listing it, at least.

010203020182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
AEIS by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20131$440kn.a.n.a.
Q3 20131$907kn.a.n.a.
Q4 20131$572kn.a.n.a.
Q2 20141$28mn.a.n.a.
Q3 20141$22mn.a.n.a.
Q4 20141$12mn.a.n.a.
Q1 20152$6.2mn.a.n.a.
Q2 20151$277kn.a.n.a.
Q4 20151$288kn.a.n.a.
Q2 20161$6.6mn.a.n.a.
Q3 20161$8.2mn.a.n.a.
Q4 20162$56mn.a.n.a.
Q1 20175$68mn.a.n.a.
Q2 20177$65mn.a.n.a.
Q3 201711$193mn.a.n.a.
Q4 20179$127mn.a.n.a.
Q1 20189$129mn.a.n.a.
Q2 20185$94mn.a.n.a.
Q3 20186$96mn.a.n.a.
Q4 20184$70mn.a.n.a.
Q1 20193$73mn.a.n.a.
Q2 20192$72mn.a.n.a.
Q3 20193$59mn.a.n.a.
Q4 20192$4.1mn.a.n.a.
Q1 20201$1.9mn.a.n.a.
Q2 20201$2.8mn.a.n.a.
Q3 20202$37mn.a.n.a.
Q4 20203$101mn.a.n.a.
Q1 20214$66mn.a.n.a.
Q2 20213$83mn.a.n.a.
Q3 20212$72mn.a.n.a.
Q4 20213$77mn.a.n.a.
Q1 20224$157mn.a.n.a.
Q2 20223$137mn.a.n.a.
Q3 20223$146mn.a.n.a.
Q4 20225$129mn.a.n.a.
Q1 20236$176mn.a.n.a.
Q2 20236$586mn.a.n.a.
Q3 20237$599mn.a.n.a.
Q4 20234$620m24
Q1 20244$165m22
Q2 20246$613m42
Q3 20244$157m22
Q4 20244$186m13
Q1 20252$123m20
Q2 20253$238m21
Q3 20254$309m22
Q4 20257$817m1314
Q1 202612$1.7bn1711
Q2 202626$2.4bn3110

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

AEIS and AAPL →AEIS and SNDK →AEIS and CSCO →Choose a stock to compare with AEIS →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own AEIS, latest filings →Back to the 13F Explorer →