ASYS · Amtech Systems Inc · Holdings

$14.91 -0.15 (-1.00%) At close · Sep 11

Russell 2000 member Rebalance outlook locked

Market Cap

$261.05M

17.51M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 113

Total Value: $246,640,301

Total Shares: 10,697,497

Showing 1–100 of 119 holdings by value · page 1 of 2

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 113 13F filers · Δ vs Mar 31, 2026

Top Holder

11.7%

+0.6 pts

Top 5

38.7%

+0.8 pts

Top 10

58.1%

−3.8 pts

HHI

453

Broadly held−13

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +34

Institutional value: +181.3%

Shares held: +42.1%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega BlackRock, Inc.	+618,041	763,487
Mega GEODE CAPITAL MANAGEMENT, LLC	+152,687	284,836
Large RENAISSANCE TECHNOLOGIES LLC	+152,509	260,605
Large ACADIAN ASSET MANAGEMENT LLC	+113,441	580,278
Large Connor, Clark & Lunn Investment Management Ltd.	+108,229	282,388

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mega MILLENNIUM MANAGEMENT LLC	−362,971	90,626
Mega DIMENSIONAL FUND ADVISORS LP	−102,657	426,694
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	−72,596	96,042
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	−56,491	308,896
Large Trexquant Investment LP	−54,139	119,750

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mid AIGH Capital Management LLC	1,252,000	$28,896,160
Mid AWM Investment Company, Inc.	690,000	$15,925,200
Mid Regal Partners Ltd	237,503	$5,481,568
Mega VANGUARD PORTFOLIO MANAGEMENT LLC	81,351	$1,877,581
Large LOS ANGELES CAPITAL MANAGEMENT LLC	63,562	$1,467,010

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Small Pacific Ridge Capital Partners, LLC	405,371	$4,734,733
Large Squarepoint Ops LLC	38,690	$451,899
Large Hudson Bay Capital Management LP	24,083	$281,289
Mid Brevan Howard Capital Management LP	23,714	$276,979
Mega BANK OF AMERICA CORP /DE/	22,652	$264,575

Filter: New 47 Increased 41 Reduced 18 Sold out 13 Unchanged 7

Showing 100 of 119

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

AIGH Capital Management LLC

$28,896,160

11.72%

1,252,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Worth Venture Partners, LLC	306,900	$7,083,252	24.5%	Other
Held directly	945,100	$21,812,908	75.5%	Sole

First Eagle Investment Management, LLC

$19,581,671

7.94%

848,426

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
FIRST EAGLE SEPARATE ACCOUNT MANAGEMENT, LLC	370	$8,539	0.0%	Sole
Held directly	848,056	$19,573,132	100.0%	Sole

BlackRock, Inc.

$17,621,278

7.14%

763,487

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	4,162	$96,058	0.5%	Sole
BlackRock Investment Management, LLC	34,826	$803,784	4.6%	Sole
BLACKROCK ADVISORS LLC	25,616	$591,217	3.4%	Sole
BlackRock Fund Advisors	451,443	$10,419,304	59.1%	Sole
BlackRock Institutional Trust Company, N.A.	245,602	$5,668,494	32.2%	Sole
Aperio Group, LLC	1,838	$42,421	0.2%	Sole

AWM Investment Company, Inc.

$15,925,200

6.46%

690,000

VANGUARD CAPITAL MANAGEMENT LLC

$13,397,986

5.43%

580,502

ACADIAN ASSET MANAGEMENT LLC

$13,392,816

5.43%

580,278

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	580,278	$13,392,816	100.0%	Defined

DIMENSIONAL FUND ADVISORS LP

$9,848,097

3.99%

426,694

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	2,100	$48,468	0.5%	Defined
DFA Australia Ltd.	4,000	$92,320	0.9%	Defined
Dimensional Ireland Ltd	13,427	$309,895	3.1%	Defined
Held directly	407,167	$9,397,414	95.4%	Sole

MARSHALL WACE, LLP

$9,198,855

3.73%

398,564

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	398,564	$9,198,855	100.0%	Other

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

$7,129,319

2.89%

308,896

GEODE CAPITAL MANAGEMENT, LLC

$6,574,014

2.67%

284,836

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	41,086	$948,264	14.4%	Defined
Held directly	243,750	$5,625,750	85.6%	Defined

Connor, Clark & Lunn Investment Management Ltd.

$6,517,514

2.64%

282,388

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	281,751	$6,502,813	99.8%	Sole
Held directly	637	$14,701	0.2%	Sole

RENAISSANCE TECHNOLOGIES LLC

$6,014,763

2.44%

260,605

TWO SIGMA INVESTMENTS, LP

$5,870,790

2.38%

254,367

JANE STREET GROUP, LLC

$5,757,652

2.33%

249,465

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	77,463	$1,787,846	31.1%	Defined
Jane Street Global Trading, LLC	172,002	$3,969,806	68.9%	Defined

Regal Partners Ltd

$5,481,568

2.22%

237,503

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Regal Partners Funds Management Pty Ltd	126,986	$2,930,836	53.5%	Defined
Held directly	110,517	$2,550,732	46.5%	Defined

Qube Research & Technologies Ltd

$4,493,999

1.82%

194,714

STATE STREET CORP

$3,596,994

1.46%

155,849

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	155,849	$3,596,994	100.0%	Defined

Trexquant Investment LP

$2,763,830

1.12%

119,750

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$2,572,773

1.04%

111,472

CITADEL ADVISORS LLC

$2,452,157

0.99%

106,246

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	4,901	$113,115	4.6%	Defined
Held directly	101,345	$2,339,042	95.4%	Defined

Palisades Investment Partners, LLC

$2,370,108

0.96%

102,691

NORTHERN TRUST CORP

$2,120,058

0.86%

91,857

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	90,014	$2,077,522	98.0%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	1,843	$42,536	2.0%	Other

MILLENNIUM MANAGEMENT LLC

$2,091,648

0.85%

90,626

JANE STREET GROUP, LLC

$1,915,640

0.78%

83,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	83,000	$1,915,640	100.0%	Defined

MORGAN STANLEY

$1,915,616

0.78%

82,999

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	25	$577	0.0%	Defined
MORGAN STANLEY & CO. LLC	18,150	$418,902	21.9%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	45,951	$1,060,549	55.4%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	18,873	$435,588	22.7%	Defined

VANGUARD FIDUCIARY TRUST CO

$1,888,059

0.77%

81,805

VANGUARD PORTFOLIO MANAGEMENT LLC

$1,877,581

0.76%

81,351

Point72 Asset Management, L.P.

$1,839,106

0.75%

79,684

UBS Group AG

$1,825,281

0.74%

79,085

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	100	$2,308	0.1%	Defined
UBS AG	77,121	$1,779,952	97.5%	Defined
UBS Securities LLC	1,864	$43,021	2.4%	Defined

Informed Momentum Co LLC

$1,675,123

0.68%

72,579

BNP PARIBAS ARBITRAGE, SA

$1,645,442

0.67%

71,293

XTX Topco Ltd

$1,611,722

0.65%

69,832

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	69,832	$1,611,722	100.0%	Defined

LOS ANGELES CAPITAL MANAGEMENT LLC

$1,467,010

0.59%

63,562

O'SHAUGHNESSY ASSET MANAGEMENT, LLC

$1,265,453

0.51%

54,829

GOLDMAN SACHS GROUP INC

$1,247,842

0.51%

54,066

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	32,520	$750,561	60.1%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	21,546	$497,281	39.9%	Defined

Capelight Capital Asset Management LP

$1,154,000

0.47%

50,000

SEI INVESTMENTS CO

$1,142,483

0.46%

49,501

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SEI TRUST CO	49,501	$1,142,483	100.0%	Sole

Man Group plc

$1,043,769

0.42%

45,224

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Numeric Investors LLC	45,224	$1,043,769	100.0%	Defined

NEW YORK STATE COMMON RETIREMENT FUND

$1,015,727

0.41%

44,009

Hillsdale Investment Management Inc.

$994,286

0.40%

43,080

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$988,793

0.40%

42,842

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	42,842	$988,793	100.0%	Other

Bank of New York Mellon Corp

$958,580

0.39%

41,533

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	6,750	$155,790	16.3%	Defined
The Bank of New York Mellon	22,587	$521,307	54.4%	Defined
Newton Investment Management North America, LLC	12,195	$281,460	29.4%	Defined
Held directly	1	$23	0.0%	Defined

RITHOLTZ WEALTH MANAGEMENT

$954,911

0.39%

41,374

OCCUDO QUANTITATIVE STRATEGIES LP

$891,257

0.36%

38,616

Engineers Gate Manager LP

$889,780

0.36%

38,552

GSA CAPITAL PARTNERS LLP

$872,747

0.35%

37,814

ESSEX INVESTMENT MANAGEMENT CO LLC

$871,523

0.35%

37,761

Merit Financial Group, LLC

$853,960

0.35%

37,000

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$823,956

0.33%

35,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	35,700	$823,956	100.0%	Other

Empowered Funds, LLC

$800,229

0.32%

34,672

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Bridgeway Capital Management, LLC	34,672	$800,229	100.0%	Other

AMERICAN CENTURY COMPANIES INC

$797,090

0.32%

34,536

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AMERICAN CENTURY INVESTMENT MANAGEMENT INC	34,536	$797,090	100.0%	Defined

CITADEL ADVISORS LLC

$759,332

0.31%

32,900

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	32,900	$759,332	100.0%	Defined

Janney Montgomery Scott LLC

$709,940

0.29%

30,760

Optimus Capital Advisors, LLC

$692,400

0.28%

30,000

Y-Intercept (Hong Kong) Ltd

$681,621

0.28%

29,533

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$657,041

0.27%

28,468

WINTON GROUP Ltd

$654,318

0.27%

28,350

IRONWOOD INVESTMENT MANAGEMENT LLC

$627,614

0.25%

27,193

Marex Group plc

$602,803

0.24%

26,118

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marex Financial	26,118	$602,803	100.0%	Defined

Panoramic Capital, LLC

$577,000

0.23%

25,000

JANE STREET GROUP, LLC

$516,992

0.21%

22,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	22,400	$516,992	100.0%	Defined

SHIKIAR ASSET MANAGEMENT INC

$509,491

0.21%

22,075

Dynamic Technology Lab Private Ltd

$493,450

0.20%

21,380

PEAK6 LLC

$484,680

0.20%

21,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PEAK6 Investments LLC joint	21,000	$484,680	100.0%	Defined

Nuveen, LLC

$477,317

0.19%

20,681

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Nuveen Asset Management, LLC joint	5,156	$119,000	24.9%	Defined
TEACHERS ADVISORS, LLC joint	15,525	$358,317	75.1%	Defined

Sowell Financial Services LLC

$466,354

0.19%

20,206

VILLERE ST DENIS J & CO LLC

$461,600

0.19%

20,000

Schonfeld Strategic Advisors LLC

$437,966

0.18%

18,976

LPL Financial LLC

$416,040

0.17%

18,026

WealthTrust Axiom LLC

$410,824

0.17%

17,800

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$403,900

0.16%

17,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	17,500	$403,900	100.0%	Other

KTF INVESTMENTS, LLC

$392,360

0.16%

17,000

NewEdge Advisors, LLC

$365,194

0.15%

15,823

Integrated Quantitative Investments LLC

$354,485

0.14%

15,359

De Lisle Partners LLP

$346,200

0.14%

15,000

JAMES INVESTMENT RESEARCH, INC.

$336,968

0.14%

14,600

STATE OF WISCONSIN INVESTMENT BOARD

$313,888

0.13%

13,600

CITADEL ADVISORS LLC

$295,424

0.12%

12,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	12,800	$295,424	100.0%	Defined

JPMORGAN CHASE & CO

$277,836

0.11%

12,038

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	7,323	$169,014	60.8%	Defined
J.P. Morgan Securities LLC	4,715	$108,822	39.2%	Defined

RHUMBLINE ADVISERS

$276,659

0.11%

11,987

DEUTSCHE BANK AG\

$268,812

0.11%

11,647

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS INVESTMENT MANAGEMENT AMERICAS, INC	222	$5,123	1.9%	Defined
DWS Investments UK Ltd	11,425	$263,689	98.1%	Defined

VIRTUS ADVISERS, LLC

$264,981

0.11%

11,481

WELLS FARGO & COMPANY/MN

$246,609

0.10%

10,685

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	10,685	$246,609	100.0%	Defined

ExodusPoint Capital Management, LP

$243,655

0.10%

10,557

State of Wyoming

$234,723

0.10%

10,170

ALLIANCEBERNSTEIN L.P.

$230,800

0.09%

10,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	10,000	$230,800	100.0%	Defined

PRICE T ROWE ASSOCIATES INC /MD/

$224,960

0.09%

9,747

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	9,747	$224,960	100.0%	Defined

Truvestments Capital LLC

$213,836

0.09%

9,265

Invesco Ltd.

$213,719

0.09%

9,260

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Advisers, Inc. joint	1,693	$39,074	18.3%	Defined
Invesco Trust Co joint	4,669	$107,760	50.4%	Defined
Invesco Capital Management LLC	2,898	$66,885	31.3%	Defined

Legato Capital Management LLC

$205,365

0.08%

8,898

STRS OHIO

$182,332

0.07%

7,900

MetLife Investment Management, LLC

$162,621

0.07%

7,046

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	7,046	$162,621	100.0%	Defined

CITIGROUP INC

$126,709

0.05%

5,490

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	5,490	$126,709	100.0%	Defined

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

$124,470

0.05%

5,393

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Global X Management CO LLC joint	5,393	$124,470	100.0%	Defined

OSAIC HOLDINGS, INC.

$99,128

0.04%

4,295

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	4,295	$99,128	100.0%	Defined

Vanguard Global Advisers, LLC

$98,828

0.04%

4,282

SIMPLEX TRADING, LLC

$97,628

0.04%

4,230

GROUP ONE TRADING LLC

$96,243

0.04%

4,170

BARCLAYS PLC

$85,718

0.03%

3,714

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	1,537	$35,473	41.4%	Defined
BARCLAYS CAPITAL INC.	2,177	$50,245	58.6%	Defined

Police & Firemen's Retirement System of New Jersey

$79,741

0.03%

3,455

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Capital	3,455	$79,741	100.0%	Defined

Key facts CIK 720500 CUSIP 032332504 13F (30d) 40 filings 40 filers Visit website Investor relations