Security key
032332504
AMTECH SYSTEMS INC - Common Stock, par value $0.01 per share (ASYS)
CUSIP: 032332504
Q1 2023 13F Holders as of 31 Mar 2023
- Security type / class
- Equity / Common Stock, par value $0.01 per share
- Total 13F shares
- 6,547,348
- Total 13F value
- $62,460,055
- Share change
- -63,967
- Put/Call ratio
- 467%
- SEC-reported price per share
- $9.54
- Number of holders
- 44
- Value change
- +$233,563
- Number of buys
- 24
- Number of sells
- 17
- Shares outstanding
- 17,388,889
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2023
Institutions
44
Top holders
10
ASYS full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
AMTECH SYSTEMS INC SEC filings
AMTECH SYSTEMS INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 032332504
Recent filing periods:
Ownership snapshot
Top reported holders of ASYS - AMTECH SYSTEMS INC - Common Stock, par value $0.01 per share (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
ROYCE & ASSOCIATES LP
Disclosed value leader
ROYCE & ASSOCIATES LP
Comparable rows
15/15
Latest evidence
31 Dec 2022
13F
Lead comparable stake: 8%
Showing 1-6 of 15 holder rows.
Quick read
ROYCE & ASSOCIATES LP leads the comparable SEC ownership view at 8%.
15 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 ROYCE & ASSOCIATES LP's linked filing trail.
Comparable ownership
Top 5
ROYCE & ASSOCIATES LP
8%
DIMENSIONAL FUND ADVISORS LP
6.6%
Pacific Ridge Capital Partners, LLC
4.5%
VANGUARD GROUP INC
2.9%
SELDON CAPITAL LP
2.5%
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 |
|---|---|---|---|---|---|
| ROYCE & ASSOCIATES LP |
13F
Company
|
8%
|
$10,577,452
1,391,770 shares
|
— | 31 Dec 2022 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
6.6%
|
$8,726,000
1,148,114 shares
|
— | 31 Dec 2022 |
| Pacific Ridge Capital Partners, LLC |
13F
Company
|
4.5%
|
$5,881,906
773,935 shares
|
— | 31 Dec 2022 |
| VANGUARD GROUP INC |
13F
Company
|
2.9%
|
$3,786,137
498,176 shares
|
— | 31 Dec 2022 |
| SELDON CAPITAL LP |
13F
Company
|
2.5%
|
$3,255,088
428,301 shares
|
— | 31 Dec 2022 |
| HEARTLAND ADVISORS INC |
13F
Company
|
1.8%
|
$2,333,200
307,000 shares
|
— | 31 Dec 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 Q1 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
44
Shares
6,547,348
Rows available
44
| 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 Q1 2023 vs Q1 2023 Across Filers
Q1 2023 holders
44
Q1 2023 holders
44
Holder diff
0
| Investor | Q1 2023 Shares | Q1 2023 Shares | Share Diff | Share Chg % | Q1 2023 value | Q1 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend