Ticker · CUSIP 007973100

AEIS

ADVANCED ENERGY INDS

Industrials·Electrical Equipment & Parts

···Share

Holders (tracked)

Combined shares

2,283,888

Combined value

$478.18M

Last close

$375.60

Quarter

2025Q4

Price is +79.4% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$375.60+289.01 (+333.78%)H $385.73 · L $85.84 · Avg Vol 487K

Congress buyCongress sell

Tracked holders · last 8 quarters

+1 vs previous quarter over the last 8.

SEC event timeline

28 events

DelSanto Anne
2026-04-15
Sold $91.3K @ $380.52
Insider sell
Wellington Management added2026-02-17
+133,008 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) exited2026-02-17
−4,028 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+4,329 shares · 2025Q4
Position
D.E. Shaw & Co. trimmed2026-02-17
−4,953 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) added2026-02-17
+31,572 shares · 2025Q4
Position
Steve Cohen (Point72) added2026-02-17
+98,592 shares · 2025Q4
Position
Ron Baron (Baron Capital / BAMCO) trimmed2026-02-17
−92,844 shares · 2025Q4
Position
T. Rowe Price added2026-02-17
+35,641 shares · 2025Q4
Position
Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+7,248 shares · 2025Q4
Position
Ray Dalio (Bridgewater Associates) trimmed2026-02-13
−4,624 shares · 2025Q4
Position
Norges Bank (Norway SWF) opened position2026-02-10
+589,400 shares · 2025Q4
Position
Ken Fisher (Fisher Asset Mgmt) added2026-02-09
+104,661 shares · 2025Q4
Position
First Eagle Investment Management trimmed2026-02-04
−17,700 shares · 2025Q4
Position
Paul Tudor Jones (Tudor Investment) exited2025-12-09
−41,638 shares · 2025Q3
Position
AQR Capital Management added2025-11-14
+7,557 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+150,736 shares · 2025Q3
Position
Steve Cohen (Point72) opened position2025-11-14
+3,600 shares · 2025Q3
Position
D.E. Shaw & Co. trimmed2025-11-14
−37,123 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+1,778 shares · 2025Q3
Position
Wellington Management opened position2025-11-14
+294,890 shares · 2025Q3
Position
Ron Baron (Baron Capital / BAMCO) added2025-11-14
+18,740 shares · 2025Q3
Position
Norges Bank (Norway SWF) exited2025-11-13
−443,515 shares · 2025Q3
Position
Ray Dalio (Bridgewater Associates) opened position2025-11-13
+9,473 shares · 2025Q3
Position
Renaissance Technologies exited2025-11-13
−28,122 shares · 2025Q3
Position
Ken Fisher (Fisher Asset Mgmt) added2025-11-12
+15,532 shares · 2025Q3
Position
First Eagle Investment Management trimmed2025-11-12
−3,710 shares · 2025Q3
Position
Norges Bank (Norway SWF) added2025-11-12
+126,384 shares · 2024Q3
Position

Insider activity

Last 30 days

Net (open-market)

−$91.3K

Buys

0 · $0

Sells

1 · $91.3K

Unique insiders

Date	Insider	Code	Shares	Price	Value
04-15	DelSanto Anne Insider	S	240	$380.52	$91.3K

View full insider history for AEIS →

Follow-the-investor returns

If you'd copied each holder of AEIS…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Ron Baron (Baron Capital / BAMCO)	2019Q4	$84.42	+344.9%	$112.4M
First Eagle Investment Management	2021Q2	$95.07	+295.1%	$37.0M
Paul Tudor Jones (Tudor Investment)	2016Q2	$96.13	+290.7%	$2.7M
D.E. Shaw & Co.	2016Q1	$100.22	+274.8%	$601K
Norges Bank (Norway SWF)	2016Q1	$109.46	+243.1%	$221.4M
Ken Fisher (Fisher Asset Mgmt)	2016Q1	$131.37	+185.9%	$148.1M
T. Rowe Price	2016Q1	$136.29	+175.6%	$26.3M
AQR Capital Management	2016Q1	$146.10	+157.1%	$11.5M
Ray Dalio (Bridgewater Associates)	2025Q3	$170.14	+120.8%	$1.8M
Izzy Englander (Millennium Mgmt)	2016Q1	$170.84	+119.9%	$75.6M
Wellington Management	2016Q1	$175.50	+114.0%	$160.7M
Steve Cohen (Point72)	2020Q3	$204.93	+83.3%	$38.4M
Ken Griffin (Citadel Advisors)	2016Q3	$205.21	+83.0%	$17.9M
Ken Griffin (Citadel Advisors)	2016Q3	$205.21	+83.0%	$17.9M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions2

Norges Bank (Norway SWF)
+589,400
$123.4M
Paul Tudor Jones (Tudor Investment)
+7,248
$1.5M

Added to6

Wellington Management
+133,008
$27.8M
Ken Fisher (Fisher Asset Mgmt)
+104,661
$21.9M
Steve Cohen (Point72)
+98,592
$20.6M
Izzy Englander (Millennium Mgmt)
+31,572
$6.6M
AQR Capital Management
+4,329
$906K
T. Rowe Price
+35,641
$7K

Trimmed4

Ron Baron (Baron Capital / BAMCO)
−92,844
$19.4M
First Eagle Investment Management
−17,700
$3.7M
D.E. Shaw & Co.
−4,953
$1.0M
Ray Dalio (Bridgewater Associates)
−4,624
$968K

Exited1

Ken Griffin (Citadel Advisors)
−4,028
$685K

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	13	7,256,533	$26.57B	—
2022Q2	11	7,381,569	$21.83B	-2
2022Q3	12	7,555,858	$584.9M	+1
2022Q4	15	8,120,349	$696.6M	+3
2023Q1	15	7,545,055	$739.4M	—
2023Q2	14	7,552,356	$841.7M	-1
2023Q3	16	7,687,257	$792.7M	+2
2023Q4	12	7,461,457	$812.7M	-4
2024Q1	14	7,729,780	$788.3M	+2
2024Q2	14	7,501,527	$815.9M	—
2024Q3	12	1,824,629	$192.0M	-2
2024Q4	10	1,595,938	$184.5M	-2
2025Q1	12	841,266	$80.2M	+2
2025Q2	13	1,494,261	$198.0M	+1
2025Q3	13	1,428,186	$243.0M	—
2025Q4	14	2,283,888	$478.2M	+1

Congress members trading this stock

Date	Member	Type	Amount range	Filing
2026-03-27	Gilbert Cisneros	Sell (P)	$1K – $15K	PDF ↗
2026-03-03	Gilbert Cisneros	Buy	$1K – $15K	PDF ↗
2026-01-20	Gilbert Cisneros	Buy	$1K – $15K	PDF ↗
2025-04-17	Josh Gottheimer	Sell	$1K – $15K	PDF ↗

Who owns AEIS

14 super-investors · 2025Q4

Tracked stake

2.28M

Combined value

$478M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New2Added6Trim4Sold2

#	Manager	Shares	Value	% of book	Last action
1	Norges Bank Norway SWF	589.4K	$123M	0.0%	New+589.4K
2	Wellington Management	427.9K	$90M	0.0%	Added+133.0K
3	Ken Fisher Fisher Asset Mgmt	394.2K	$83M	0.0%	Added+104.7K
4	Ron Baron Baron Capital / BAMCO	299.1K	$63M	0.2%	Trim−92.8K
5	Izzy Englander Millennium Mgmt	201.4K	$42M	0.0%	Added+31.6K
6	Steve Cohen Point72	102.2K	$21M	0.0%	Added+98.6K
7	First Eagle Investment Management	98.5K	$21M	0.0%	Trim−17.7K
8	T. Rowe Price	70.1K	$15M	0.0%	Added+35.6K
9	Ken Griffin Citadel Advisors	47.7K	$10M	0.0%	Sold−4.0K
10	AQR Capital Management	30.6K	$6M	0.0%	Added+4.3K
11	Ken Griffin Citadel Advisors	9.1K	$2M	0.0%	Sold−4.0K
12	Paul Tudor Jones Tudor Investment	7.2K	$2M	0.0%	New+7.2K
13	Ray Dalio Bridgewater Associates	4.8K	$1M	0.0%	Trim−4.6K
14	D.E. Shaw & Co.	1.6K	$335K	0.0%	Trim−5.0K

Recent moves

20 transactions

ADDAQR Capital Management
+4,329 · 2025Q4
ADDWellington Management
+133,008 · 2025Q4
TRIMD.E. Shaw & Co.
−4,953 · 2025Q4
SOLDKen Griffin (Citadel Advisors)
−4,028 · 2025Q4
TRIMRon Baron (Baron Capital / BAMCO)
−92,844 · 2025Q4
ADDSteve Cohen (Point72)
+98,592 · 2025Q4
ADDT. Rowe Price
+35,641 · 2025Q4
NEWPaul Tudor Jones (Tudor Investment)
+7,248 · 2025Q4
ADDIzzy Englander (Millennium Mgmt)
+31,572 · 2025Q4
TRIMRay Dalio (Bridgewater Associates)
−4,624 · 2025Q4
NEWNorges Bank (Norway SWF)
+589,400 · 2025Q4
ADDKen Fisher (Fisher Asset Mgmt)
+104,661 · 2025Q4
TRIMFirst Eagle Investment Management
−17,700 · 2025Q4
SOLDPaul Tudor Jones (Tudor Investment)
−41,638 · 2025Q3
NEWWellington Management
+294,890 · 2025Q3
NEWSteve Cohen (Point72)
+3,600 · 2025Q3
TRIMD.E. Shaw & Co.
−37,123 · 2025Q3
ADDIzzy Englander (Millennium Mgmt)
+150,736 · 2025Q3
ADDT. Rowe Price
+1,778 · 2025Q3
ADDRon Baron (Baron Capital / BAMCO)
+18,740 · 2025Q3

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