DOSSIER · 13F Holders · Q2 2026
ASYS

AMTECH SYS INC

97 institutions still hold AMTECH SYS INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 032332504·97 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$127M
visible holders
Holders
97
filers reporting
Concentration
22.84%
AIGH Capital Management LLC #1
top holder share
AI Holders Summary · Q2 2026

97 institutions reported ASYS in Q2 2026. AIGH Capital Management LLC leads at 22.8% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
AIGH Capital Management LLC
CIK 0001835943
$29M1.3M1.82%Q2 2026
02
First Eagle Investment Management, LLC
CIK 0001325447
$20M848K0.03%Q2 2026
03
BlackRock, Inc.
CIK 0002012383
$18M763K0.00%Q2 2026
04
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$7M564K0.00%Q1 2026
05
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$6M529K0.00%Q1 2026
06
ACADIAN ASSET MANAGEMENT LLC
CIK 0000916542
$5M467K0.01%Q1 2026
07
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$5M454K0.00%Q1 2026
08
Pacific Ridge Capital Partners, LLC
CIK 0001591546
$5M405K1.03%Q1 2026
09
MARSHALL WACE, LLP
CIK 0001318757
$4M353K0.00%Q4 2025
10
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$4M365K0.00%Q1 2026
11
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$4M341K0.00%Q1 2026
12
STATE STREET CORP
CIK 0000093751
$4M156K0.00%Q2 2026
13
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$3M267K0.00%Q1 2026
14
Palisades Investment Partners, LLC
CIK 0001427373
$2M103K0.67%Q2 2026
15
Connor, Clark & Lunn Investment Management Ltd.
CIK 0001596800
$2M174K0.00%Q1 2026
16
Trexquant Investment LP
CIK 0001633445
$2M174K0.01%Q1 2026
17
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$2M169K0.00%Q1 2026
18
CITADEL ADVISORS LLC
CIK 0001423053
$2M125K0.00%Q4 2025
19
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$2M132K0.00%Q1 2026
20
BRIDGEWAY CAPITAL MANAGEMENT, LLC
CIK 0001107261
$1M109K0.03%Q1 2026
Page 1 of 5
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Insiders at AMTECH SYS INC
Daigle Robert CShechter GuySabol Thomas BAverick Robert MJenke Wade MichaelLudwig Michael MGarnreiter MichaelJakwani Asif Y.