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ISSUER PROFILE · CIK 0000720500 · CUSIP 032332504

Amtech Systems IncASYS

8 13D/G filings 6 distinct filers 0 insider transactions (365d)

Post-Filing Returns · across 2 activist filings on this issuer

Median 30d
+0.4%
avg +0.4%
Median 60d
-24.0%
avg -24.0%
Median 90d
-26.9%
avg -26.9%
Median 180d
-5.5%
avg -5.5%

Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
8
2 SCHEDULE 13G · 1 SCHEDULE 13D/A · 1 SCHEDULE · 4 SC
Distinct filers
6
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
5.90
as of 2026-10-15

Institutional Consensus · 2025-12-31

Held by elite portfolio managers
1 holder · $855K
Point72 Asset Mgmt

13D/G Filings Timeline · 8 total

FiledFormFilerStakeSharesIntent
2026-10-09 SCHEDULE 13G WASATCH ADVISORS LP — — view →
2026-07-27 SCHEDULE 13G HIRSCHMAN ORIN — — view →
2026-06-02 SCHEDULE 13D/A PITON CAPITAL PARTNERS LLC 20.60% 600,000 view →
2025-02-18 SCHEDULE PITON CAPITAL PARTNERS LLC 20.20% 2,894,588 view →
2022-02-24 SC PITON CAPITAL PARTNERS LLC — — view →
2020-01-30 SC Privet Fund LP — — view →
2018-07-17 SC Schreyer Leslie J — — view →
2018-01-03 SC ROYCE & ASSOCIATES LP — — view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-10-15 1,362,222 5.90 -13.5%
2026-09-30 1,575,299 5.59 -0.9%
2026-09-15 1,590,376 5.65 -1.9%
2026-08-31 1,620,881 2.80 +29.1%
2026-08-14 1,255,453 3.62 +4.1%
2026-07-31 1,206,501 3.62 +14.9%
2026-07-15 1,049,881 2.39 +45.6%
2026-06-30 721,120 1.26 +61.1%
2026-06-15 447,722 1.00 +44.9%
2026-05-29 308,970 1.00 -9.6%
2026-05-15 341,947 1.00 +3.6%
2026-04-30 329,978 1.23 +8.5%

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