AMTECH SYSTEMS INC - Common Stock SH (ASYS)

CUSIP: 032332504

Q2 2025 13F Holders as of 30 Jun 2025

Holder snapshot 7 signals
Share change
-703,257
Put/Call ratio
0%
SEC-reported price per share
$4.44
Number of holders
36
Value change
-$3,413,239
Number of buys
17
Open additional details 1 more signal available
Number of sells
16
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
17,425,059

Security key

032332504

Report period

Q2 2025

Institutions

36

Top holders

10

Ownership snapshot

Top reported holders of ASYS - AMTECH SYSTEMS INC - Common Stock SH (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Pacific Ridge Capital Par...
Disclosed value leader
DIMENSIONAL FUND ADVISORS LP
Comparable rows
2/15
Latest evidence
31 Mar 2025
13F 13D/G 3/4/5 Lead comparable stake: 4.6% 13 rows are not safely comparable across share classes. 13D/G row: Pacific Ridge Capital Partners, LLC Showing 1-6 of 15 holder rows.

Quick read

Pacific Ridge Capital Partners, LLC leads the comparable SEC ownership view at 4.6%.

2 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Pacific Ridge Capital Partners, LLC's linked filing trail.
Comparable ownership Top 2
Pacific Ridge Capital Partners, LLC 4.6%
ROYCE & ASSOCIATES LP 4.1%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Pacific Ridge Capital Partners, LLC
13F 13D/G
Company
4.6%
Reported 13D/G · 31 Dec 2024
$2,999,599
621,035 shares
— 31 Mar 2025
ROYCE & ASSOCIATES LP
13F 13D/G
Company
4.1%
Reported 13D/G · 31 Mar 2025
$2,839,972
587,986 shares
— 31 Mar 2025
DIMENSIONAL FUND ADVISORS LP
13F
Company
13F
—
denominator unverified
$4,480,769
927,626 shares
— 31 Mar 2025
First Eagle Investment Management, LLC
13F
Company
13F
—
denominator unverified
$4,066,483
841,922 shares
— 31 Mar 2025
VANGUARD GROUP INC
13F
Company
13F
—
denominator unverified
$3,239,887
670,784 shares
— 31 Mar 2025
Jong S. Whang
3/4/5
Director
—
denominator unverified
$903,303
70,681 shares
— 23 Aug 2022
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
36
Shares
4,095,519
Rows available
36
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q2 2025 vs Q1 2025 Across Filers

Q1 2025 holders
37
Q2 2025 holders
36
Holder diff
-1
Investor Q1 2025 Shares Q2 2025 Shares Share Diff Share Chg % Q1 2025 value Q2 2025 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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