13F reference period
Q2 2026
Security Snapshot
AMTECH SYSTEMS INC - Common Stock SH (ASYS) Institutional Ownership
CUSIP: 032332504
13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026
Institutions Reporting
112
Shares (Excl. Options)
10,472,196
Price
$23.08
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.
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- Security type / class
- Equity / Common Stock SH
- Symbol
- ASYS on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 10,472,196
- Total 13F value
- $241,544,711
- Portfolio coverage rank
- 0%
- Share change
- +2,992,736
- Value change
- +$75,822,667
- Number of holders
- 112
- Shares outstanding
- 17,425,059
- SEC-reported price per share
- $16.78
- Insider filing price
- $16.78
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- ASYS - AMTECH SYSTEMS INC - Common Stock SH is tracked under CUSIP 032332504.
- 112 institutions reported positions in Q2 2026.
- 8 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 79 to 112 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $87,381,293 to $241,544,711.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 112 institutions filings for Q2 2026.
Security key
032332504
13F reference period
Q2 2026
13F holders
112
13D/G owners
8
CIK / CUSIP context first
Open Q2 2026 holders
ASYS full holder history
AMTECH SYSTEMS INC SEC filings
AMTECH SYSTEMS INC company facts
AMTECH SYSTEMS INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 032332504:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
8
Security
ASYS
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| PITON CAPITAL PARTNERS LLC | 21% | +2% | $64,176,468 | +$1,971,772 | 2,986,341 | +3.2% | Robert Averick | 01 Jun 2026 |
| Wax Asset Management, LLC | 9.2% | -41% | $17,091,060 | -$12,194,665 | 1,319,773 | -42% | Wax Asset Management, LLC | 31 Dec 2025 |
| HIRSCHMAN ORIN | 7.2% | $28,896,160 | 1,252,000 | Orin Hirschman | 30 Jun 2026 | |||
| WASATCH ADVISORS LP | 6.8% | $19,882,452 | 1,184,904 | Wasatch Advisors LP | 30 Sep 2026 | |||
| First Eagle Investment Management, LLC | 4.9% | $15,845,173 | 848,697 | First Eagle Investment Management, LLC | 30 Jun 2026 | |||
| DIMENSIONAL FUND ADVISORS LP | 4.7% | $8,434,943 | 672,107 | Dimensional Fund Advisors LP | 31 Dec 2025 | |||
| Pacific Ridge Capital Partners, LLC | 4.6% | $2,315,995 | 652,393 | Pacific Ridge Capital Partners, LLC | 31 Dec 2024 | |||
| ROYCE & ASSOCIATES LP | 4.1% | -62% | $2,087,350 | -$3,164,165 | 587,986 | -60% | ROYCE & ASSOCIATES LP | 31 Mar 2025 |
As of 30 Jun 2026, 112 institutional investors reported holding 10,472,196 shares of AMTECH SYSTEMS INC - Common Stock SH (ASYS). This represents 60% of the company’s total 17,425,059 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
49%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| AIGH Capital Management LLC | 7.2% | 1,252,000 | 2.6% | $28,896,160 | |
| First Eagle Investment Management, LLC | 4.9% | 848,426 | +1.9% | 0.03% | $19,581,672 |
| BlackRock, Inc. | 4.4% | 763,487 | +425% | 0% | $17,621,279 |
| AWM Investment Company, Inc. | 4% | 690,000 | 1.4% | $15,925,200 | |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.3% | 580,502 | +2.9% | 0% | $13,397,986 |
| ACADIAN ASSET MANAGEMENT LLC | 3.3% | 580,278 | +24% | 0.02% | $13,388,000 |
| DIMENSIONAL FUND ADVISORS LP | 2.4% | 426,694 | -19% | 0% | $9,842,868 |
| MARSHALL WACE, LLP | 2.3% | 398,564 | -4.4% | 0.01% | $9,198,858 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.8% | 308,896 | -15% | 0% | $7,129,320 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.6% | 284,836 | +116% | 0% | $6,575,423 |
| Connor, Clark & Lunn Investment Management Ltd. | 1.6% | 282,388 | +62% | 0.01% | $6,517,515 |
| RENAISSANCE TECHNOLOGIES LLC | 1.5% | 260,605 | +141% | 0.01% | $6,014,763 |
| TWO SIGMA INVESTMENTS, LP | 1.5% | 254,367 | -4.7% | 0% | $5,870,790 |
| JANE STREET GROUP, LLC | 1.4% | 249,465 | -27% | 0% | $5,757,652 |
| Regal Partners Ltd | 1.4% | 237,503 | 0.3% | $5,481,569 | |
| Qube Research & Technologies Ltd | 1.1% | 194,714 | +120% | 0% | $4,493,999 |
| STATE STREET CORP | 0.89% | 155,849 | +172% | 0% | $3,596,995 |
| Trexquant Investment LP | 0.69% | 119,750 | -31% | 0.02% | $2,763,830 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.64% | 111,472 | +2.2% | 0.05% | $2,572,774 |
| CITADEL ADVISORS LLC | 0.61% | 106,246 | -0.62% | 0% | $2,452,158 |
| Palisades Investment Partners, LLC | 0.59% | 102,691 | +2% | 0.67% | $2,370,140 |
| NORTHERN TRUST CORP | 0.53% | 91,857 | +136% | 0% | $2,120,059 |
| MILLENNIUM MANAGEMENT LLC | 0.52% | 90,626 | -80% | 0% | $2,091,648 |
| MORGAN STANLEY | 0.48% | 82,999 | +40% | 0% | $1,915,617 |
| VANGUARD FIDUCIARY TRUST CO | 0.47% | 81,805 | +29% | 0% | $1,888,059 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
51
Headline period
Q2 2026
Rows shown
1-25 of 51
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 1,349,021 | $22,636,573 | +$20,364,120 | $16.78 | 12 |
| 2026 Q2 | 10,472,196 | $241,544,711 | +$75,822,667 | $23.08 | 112 |
| 2026 Q1 | 7,472,009 | $87,381,293 | +$14,867,747 | $11.68 | 79 |
| 2025 Q4 | 6,148,660 | $77,162,722 | +$20,556,204 | $12.55 | 64 |
| 2025 Q3 | 4,545,270 | $42,085,951 | +$4,703,455 | $9.26 | 53 |
| 2025 Q2 | 4,095,519 | $18,183,948 | -$3,413,239 | $4.44 | 36 |
| 2025 Q1 | 4,798,776 | $23,178,100 | -$3,673,934 | $4.83 | 37 |
| 2024 Q4 | 5,548,015 | $30,236,234 | -$3,106,815 | $5.45 | 35 |
| 2024 Q3 | 6,101,303 | $35,387,780 | -$628,528 | $5.80 | 34 |
| 2024 Q2 | 6,208,462 | $36,381,328 | -$199,431 | $5.86 | 34 |
| 2024 Q1 | 6,260,089 | $33,865,702 | +$888,406 | $5.41 | 41 |
| 2023 Q4 | 6,157,364 | $25,859,431 | -$3,960,935 | $4.20 | 44 |
| 2023 Q3 | 6,723,448 | $51,232,884 | +$622,755 | $7.62 | 42 |
| 2023 Q2 | 6,612,384 | $63,212,484 | +$622,539 | $9.56 | 44 |
| 2023 Q1 | 6,547,348 | $62,460,055 | +$233,563 | $9.54 | 44 |
| 2022 Q4 | 6,611,315 | $50,244,545 | -$944,653 | $7.60 | 48 |
| 2022 Q3 | 8,958,191 | $76,143,000 | -$211,257 | $8.50 | 42 |
| 2022 Q2 | 8,993,057 | $65,650,000 | -$3,678,328 | $7.30 | 39 |
| 2022 Q1 | 9,397,325 | $94,582,322 | -$2,448,436 | $10.06 | 46 |
| 2021 Q4 | 9,650,178 | $95,342,000 | -$4,323,679 | $9.88 | 48 |
| 2021 Q3 | 6,787,151 | $77,570,000 | +$2,038,439 | $11.43 | 51 |
| 2021 Q2 | 6,673,059 | $64,368,000 | -$6,221,590 | $9.64 | 54 |
| 2021 Q1 | 7,080,059 | $83,680,000 | +$4,337,725 | $11.82 | 63 |
| 2020 Q4 | 7,334,717 | $46,792,000 | +$2,898,358 | $6.38 | 39 |
| 2020 Q3 | 6,899,313 | $33,739,000 | +$1,157,725 | $4.89 | 45 |