Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

ADVANCED ENERGY INDUSTRIES INC

CIK 0000927003AEIS· quarter ending 2026-06-30

Shares outstanding

40,050,442

as of 2026-07-29 · 10-Q cover page, filed 2026-08-03

Held by 13F filers

108,738,121

selection includes debt or preferreds — no % of shares outstanding

Holders

-26 vs 2026-03-31 · 7 new, 33 exited

Value

$302.9M

shares -78.5% vs prior quarter

13F holdings exceed the share count. This is normal for heavily shorted stocks: shares lent to short sellers are reported by the lender and again by whoever bought them. Related filers occasionally report the same position twice as well.

Share classes (cover page of the 10-Q filed 2026-08-03, as of 2026-07-29)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	AEIS · NASDAQ	40,050,442	40,287,170	100.6%	683	007973100

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	007973100	COM	683	40,287,170	40,050,442	100.6%	$15.0B	9 call / 10 put	13DG	holders →
	007973AE0	CVnot common	30	334,121 $108.4M principal	—	—	$302.9M	—	NPORT	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings. 1 further CUSIPs map to this company (mostly bonds) but no 13F filer held them this quarter.

Top holders (30 of 30 · 007973AE0)

change vs 2026-03-31

#	Filer	Shares / principal	% of class	Value	Change
1	Elequin Capital, LP	31,597,000	—	$86.2M	NEW
2	SOROS FUND MANAGEMENT LLC	16,821,000	—	$45.9M	NEW
3	MILLENNIUM MANAGEMENT LLC	15,744,000	—	$43.0M	-27,256,000 (-63.4%)
4	M&G PLC	9,430,000	—	$25.8M	-1,622,000 (-14.7%)
5	PIPER SANDLER & CO.	9,000,000	—	$24.4M	NEW
6	Aequim Alternative Investments LP	5,000,000	—	$13.7M	—
7	MacKay Shields LLC	4,843,000	—	$13.2M	-34,801,000 (-87.8%)
8	LORD, ABBETT & CO. LLC	4,187,000	—	$11.4M	-4,890,000 (-53.9%)
9	MORGAN STANLEY	2,663,000	—	$6.8M	NEW
10	ADVENT CAPITAL MANAGEMENT /DE/	2,573,000	—	$7.1M	+2,008,000 (+355.4%)
11	WELLS FARGO & COMPANY/MN	1,367,000	—	$3.7M	-619,000 (-31.2%)
12	VOYA INVESTMENT MANAGEMENT LLC	1,250,000	—	$3.4M	NEW
13	SSI INVESTMENT MANAGEMENT LLC	1,249,000	—	$3.4M	-4,699,000 (-79.0%)
14	JPMORGAN CHASE & CO	1,016,000	—	$2.6M	-460,000 (-31.2%)
15	BNP PARIBAS FINANCIAL MARKETS	740,000	—	$2.0M	-44,140,000 (-98.4%)
16	WELLINGTON MANAGEMENT GROUP LLP	338,000	—	$926K	-100,000 (-22.8%)
17	Calamos Advisors LLC	286,000	—	$791K	-43,781,000 (-99.4%)
18	Calamos Wealth Management LLC	208,000	—	$575K	-316,000 (-60.3%)
19	OPPENHEIMER ASSET MANAGEMENT INC.	158,000	—	$432K	-3,000 (-1.9%)
20	UBS Group AG	82,000	—	$224K	-26,000 (-24.1%)
21	&PARTNERS	80,000	—	$218K	-3,000 (-3.6%)
22	STEPHENS INC /AR/	48,000	—	$131K	-2,000 (-4.0%)
23	COMMONWEALTH EQUITY SERVICES, LLC	17,000	—	$46K	NEW
24	MML INVESTORS SERVICES, LLC	17,000	—	$46K	—
25	Balboa Wealth Partners	10,000	—	$27K	-16,000 (-61.5%)
26	LOOMIS SAYLES & CO L P	7,704	—	$2.9M	-67,757 (-89.8%)
27	LANARK FINANCIAL, INC.	5,000	—	$14K	NEW
28	LAFFER TENGLER INVESTMENTS, INC.	1,318	—	$3.6M	-26 (-1.9%)
29	ODDO BHF ASSET MANAGEMENT SAS	98	—	$268K	-2 (-2.0%)
30	Altshuler Shaham Ltd	1	—	$15	—

Exited since 2026-03-31 (33 filers; largest 25 shown)

Linden Advisors LP	−50,507,000
Alberta Investment Management Corp	−45,000,000
STEELHEAD PARTNERS LLC	−40,500,000
DLD Asset Management, LP	−35,000,000
Balyasny Asset Management L.P.	−21,500,000
TENOR CAPITAL MANAGEMENT Co., L.P.	−18,500,000
FMR LLC	−12,893,000
ARISTEIA CAPITAL, L.L.C.	−12,000,000
STATE STREET CORP	−11,975,000
BlackRock, Inc.	−9,550,000
Jain Global LLC	−8,500,000
LAZARD ASSET MANAGEMENT LLC	−6,740,000
PICTON MAHONEY ASSET MANAGEMENT	−5,000,000
BARCLAYS PLC	−4,476,000
AMERIPRISE FINANCIAL INC	−3,504,000
OFI INVEST ASSET MANAGEMENT	−2,500,000
Universal- Beteiligungs- und Servicegesellschaft mbH	−2,320,000
Invesco Ltd.	−2,000,000
DeepCurrents Investment Group LLC	−1,335,000
Union Bancaire Privee, UBP SA	−1,120,000
SHENKMAN CAPITAL MANAGEMENT INC	−1,050,000
CITIGROUP INC	−546,000
JANE STREET GROUP, LLC	−375,000
Kohlberg Kravis Roberts & Co. L.P.	−375,000
SEI INVESTMENTS CO	−325,000

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Abigail P. Johnson	SCHEDULE 13G/A	2026-08-06	2026-06-30	1,441,862.87	3.8%
FMR LLC	SCHEDULE 13G/A	2026-08-06	2026-06-30	1,441,862.87	3.8%
BlackRock, Inc.	SCHEDULE 13G/A	2026-07-27	2026-06-30	3,747,567	9.9%
BlackRock Portfolio Management LLC	SCHEDULE 13G/A	2026-07-17	2026-06-30	878,832	2.3%
Vanguard Capital Management	SCHEDULE 13G	2026-04-29	2026-03-31	1,981,070	5.23%
Vanguard Portfolio Management	SCHEDULE 13G	2026-04-28	2026-03-31	2,353,249	6.21%
The Vanguard Group	SCHEDULE 13G/A	2026-03-26	2026-03-13	0	0%
Ameriprise Financial, Inc.	SCHEDULE 13G/A	2025-11-14	2025-09-30	1,820,336	4.8%
Columbia Management Investment Advisers, LLC	SCHEDULE 13G/A	2025-11-14	2025-09-30	1,506,186	4%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.