Security Snapshot

AMTECH SYSTEMS INC - Common Stock (ASYS) Institutional Ownership

CUSIP: 032332504

13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026

Latest Period

Q4 2025

Institutions Reporting

64

Shares (Excl. Options)

6,148,660

Price

$12.55

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Type / Class
Equity / Common Stock
Symbol
ASYS on Nasdaq
Shares outstanding
14,345,359
Price per share
$14.75
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
6,148,660
Total reported value
$77,162,722
% of total 13F portfolios
0%
Share change
+1,601,666
Value change
+$20,556,204
Number of holders
64
Price from insider filings
$14.75
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Quick Takeaways

  • ASYS - AMTECH SYSTEMS INC - Common Stock is tracked under CUSIP 032332504.
  • 64 institutions reported positions in Q4 2025.
  • 5 significant owners is listed from Schedule 13D/13G reporting.

What Changed

  • Holder count moved from 64 to 19 between Q4 2025 and Q1 2026.
  • Reported value moved from $77,162,722 to $18,800,594.

Why This Matters

  • 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.

Source Evidence

Source: SEC Form 13F

Latest holder context comes from 64 institutions filings for Q4 2025.

Open SEC Evidence

Investment Quick Answers

What is CUSIP 032332504?
CUSIP 032332504 identifies ASYS - AMTECH SYSTEMS INC - Common Stock in SEC 13F datasets.

Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.

Significant Owners of AMTECH SYSTEMS INC - Common Stock (ASYS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
PITON CAPITAL PARTNERS LLC 20% $10,275,787 2,894,588 Robert Averick 13 Feb 2025
Wax Asset Management, LLC 9.2% -41% $17,091,060 -$12,194,665 1,319,773 -42% Wax Asset Management, LLC 31 Dec 2025
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 31 Dec 2025, 64 institutional investors reported holding 6,148,660 shares of AMTECH SYSTEMS INC - Common Stock (ASYS). This represents 43% of the company’s total 14,345,359 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of AMTECH SYSTEMS INC - Common Stock (ASYS) together control 38% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
First Eagle Investment Management, LLC 5.1% 734,346 -2.4% 0.02% $9,216,042
DIMENSIONAL FUND ADVISORS LP 4.7% 672,107 -21% 0% $8,435,131
VANGUARD GROUP INC 4.4% 631,905 -6.5% 0% $7,930,408
Pacific Ridge Capital Partners, LLC 4.4% 627,811 -2.9% 1.7% $7,879,028
MARSHALL WACE, LLP 2.5% 352,624 +235% 0% $4,425,432
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 2.4% 347,033 +90% 0% $4,355,264
JANE STREET GROUP, LLC 2.3% 325,754 +86% 0% $4,088,212
ACADIAN ASSET MANAGEMENT LLC 1.6% 236,008 +183% 0% $2,958,000
RENAISSANCE TECHNOLOGIES LLC 1% 146,596 +622% 0% $1,839,780
BlackRock, Inc. 0.94% 134,477 +1.2% 0% $1,687,686
GEODE CAPITAL MANAGEMENT, LLC 0.93% 133,001 +1.3% 0% $1,669,844
CITADEL ADVISORS LLC 0.87% 124,843 +59% 0% $1,566,779
TWO SIGMA INVESTMENTS, LP 0.78% 111,437 0% $1,398,534
BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.67% 96,318 +49% 0.03% $1,208,791
Trexquant Investment LP 0.62% 89,365 0.01% $1,121,531
SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.56% 80,630 +304% 0% $1,011,907
GOLDMAN SACHS GROUP INC 0.55% 78,693 +152% 0% $987,597
Informed Momentum Co LLC 0.52% 74,305 0.1% $932,528
TWO SIGMA ADVISERS, LP 0.49% 69,997 0% $878,462
XTX Topco Ltd 0.48% 69,381 +568% 0.02% $870,732
Point72 Asset Management, L.P. 0.48% 68,154 0% $855,333
Connor, Clark & Lunn Investment Management Ltd. 0.47% 66,877 0% $839,306
STATE STREET CORP 0.44% 62,790 +15% 0% $788,015
O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.42% 60,963 0% $765,086
SEI INVESTMENTS CO 0.32% 45,233 0% $567,674

Institutional Holders of AMTECH SYSTEMS INC - Common Stock (ASYS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 1,609,814 $18,800,594 +$1,021,730 $11.68 19
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
2020 Q2 6,663,046 $32,401,000 +$1,265,437 $4.87 43
2020 Q1 6,397,049 $27,826,000 +$2,483,028 $4.35 43
2019 Q4 5,749,732 $41,195,000 -$450,735 $7.16 41
2019 Q3 8,155,743 $43,221,000 +$1,664,591 $5.30 47
2019 Q2 7,839,714 $43,120,000 +$663,026 $5.50 44
2019 Q1 7,726,327 $41,178,000 -$555,753 $5.33 49
2018 Q4 7,849,616 $35,557,000 -$851,895 $4.53 49
2018 Q3 7,857,287 $41,959,000 -$4,207,651 $5.34 48
2018 Q2 8,633,832 $52,256,000 -$8,668,380 $6.05 62
2018 Q1 9,808,725 $71,796,300 +$1,435,463 $7.32 75
2017 Q4 9,502,761 $95,709,314 +$5,090,248 $10.07 74
2017 Q3 8,731,054 $104,591,942 +$15,818,862 $11.98 64
2017 Q2 7,193,682 $60,712,777 +$2,866,460 $8.44 48
2017 Q1 6,862,056 $37,691,810 +$670,494 $5.50 39
2016 Q4 6,788,379 $28,849,400 -$697,653 $4.25 38
2016 Q3 6,949,319 $34,466,632 -$16,740 $4.96 40
2016 Q2 6,953,202 $41,505,966 -$1,334,198 $5.97 37
2016 Q1 7,160,931 $46,468,135 -$913,174 $6.49 38
2015 Q4 7,257,229 $45,435,060 -$2,777,763 $6.26 41
2015 Q3 7,929,676 $34,093,416 -$1,632,820 $4.30 40
2015 Q2 7,962,628 $82,727,061 +$9,597,557 $10.39 48
2015 Q1 6,911,221 $77,263,680 +$18,954,976 $11.18 51
2014 Q4 5,321,184 $54,038,170 +$1,538,052 $10.20 42
2014 Q3 4,032,071 $43,241,870 +$2,207,863 $10.70 43
2014 Q2 3,828,120 $46,813,293 +$2,602,834 $12.23 42
2014 Q1 3,615,204 $43,778,031 +$11,534,442 $12.17 36
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