Vault-13

AMTECH SYS INC ASYS

COM PAR $0.01N · Common Stock · CUSIP 032332504

43 institutional holders
8,958,5049.0m shares reported held*
64.5% of all shares outstanding*
$76.1mreported value*

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 13.9m as of 2022-08-10, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $8.50. Options: 2 managers hold calls ($5.0k notional), 2 hold puts ($34.0k).

Biggest calls

Biggest puts

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
PITON CAPITAL PARTNERS LLC 13D · may seek influence +0.4 pts · filed 2026-06-02 20.6% +0.4 pts 3.0m≈ $68.9m 2026-06-02
Wax Asset Management, LLC 13G · institution -6.6 pts · filed 2026-02-13 9.2% -6.6 pts 1.3m≈ $30.5m 2026-02-13
HIRSCHMAN ORIN 13G · institution new · filed 2026-07-27 7.2% new 1.3m≈ $28.9m 2026-07-27
WASATCH ADVISORS LP 13G · institution new · filed 2026-10-09 6.8% new 1.2m≈ $27.3m 2026-10-09

Fell to 5% or below in the last year: First Eagle Investment Management, LLC (4.9%, 2026-08-06), DIMENSIONAL FUND ADVISORS LP (4.7%, 2026-01-21)

Insider purchases and sales in Q3 2022

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
202Q4 20: 0 buyingQ4 20: 0 sellingQ1 21: 0 buyingQ1 21: 0 sellingQ1 21Q2 21: 0 buyingQ2 21: 0 sellingQ3 21: 0 buyingQ3 21: 0 sellingQ3 21Q4 21: 1 buyingQ4 21: 0 sellingQ1 22: 1 buyingQ1 22: 0 sellingQ1 22Q2 22: 1 buyingQ2 22: 0 sellingQ3 22: 1 buyingQ3 22: 2 sellingQ3 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20200—0——
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20211$159.0k0——
Q1 20221$247.4k0——
Q2 20221$316.1k0——
Q3 20221$107.2k2$951.5k—
DateInsiderTradeSharesPrice ValueTheir holding
2022-09-12 Averick Robert M Director Bought 3,399 $10.96 $37.3k3.4k shares +1%
2022-09-09 Averick Robert M Director Bought 1,211 $10.96 $13.3k1.2k shares +<1%
2022-09-02 Averick Robert M Director Bought 399 $10.56 $4.2k399 shares +<1%
2022-09-01 Averick Robert M Director Bought 4,991 $10.51 $52.5k5.0k shares +2%
2022-08-24 WHANG MICHAEL Chief Executive Officer, director Sold 23,754 $12.55 $298.0k23.8k shares -55%
2022-08-23 WHANG JONG S Director Sold 50,000 $13.07 $653.5k50.0k shares -41%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q3 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 KOKINO LLC 68.41% of their portfolio OKLAHOMA CITY, OK 2,250,0002.2m $19.1m $19.1m 68.41% —
2 ROYCE & ASSOCIATES LP 0.13% of their portfolio New York, NY 1,340,9701.3m $11.4m $11.4m 0.13% —
3 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 1,135,1131.1m $9.6m $9.6m 0.00% —
4 Pacific Ridge Capital Partners, LLC 1.73% of their portfolio LAKE OSWEGO, OR 785,860785.9k $6.7m $6.7m 1.73% —
5 SELDON CAPITAL LP 3.29% of their portfolio SAN FRANCISCO, CA 541,968542.0k $4.6m $4.6m 3.29% —
6 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 471,380471.4k $4.0m $4.0m 0.00% —
7 HEARTLAND ADVISORS INC 0.19% of their portfolio MILWAUKEE, WI 300,000300.0k $2.5m $2.5m 0.19% —
8 272 Capital LP 1.25% of their portfolio DALLAS, TX 274,228274.2k $2.3m $2.3m 1.25% —
9 ESSEX INVESTMENT MANAGEMENT CO LLC 0.37% of their portfolio BOSTON, MA 269,005269.0k $2.3m $2.3m 0.37% —
10 First Eagle Investment Management, LLC 0.01% of their portfolio NEW YORK, NY 195,917195.9k $1.7m $1.7m 0.01% —
11 BlackRock Inc. 0.00% of their portfolio New York, NY 138,915138.9k $1.2m $1.2m 0.00% —
12 Informed Momentum Co LLC 0.23% of their portfolio SOLANA BEACH, CA 126,902126.9k $1.1m $1.1m 0.23% —
13 Brandywine Global Investment Management, LLC 0.01% of their portfolio PHILADELPHIA, PA 124,838124.8k $1.1m $1.1m 0.01% —
14 OBERWEIS ASSET MANAGEMENT INC/ 0.23% of their portfolio LISLE, IL 113,900113.9k $968.0k $968.0k 0.23% —
15 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 104,334104.3k $886.0k $886.0k 0.00% —
16 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.02% of their portfolio HOUSTON, TX 86,80086.8k $738.0k $738.0k 0.02% —
17 Janney Montgomery Scott LLC 0.00% of their portfolio PHILADELPHIA, PA 76,65676.7k $652.0k $652.0k 0.00% —
18 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 75,25775.3k $640.0k $640.0k 0.00% —
19 ClariVest Asset Management LLC 0.03% of their portfolio SAN DIEGO, CA 70,50070.5k $600.0k $600.0k 0.03% —
20 Ancora Advisors LLC 0.01% of their portfolio Cleveland, OH 54,06354.1k $459.0k $459.0k 0.01% —
21 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 46,79646.8k $398.0k $398.0k 0.00% —
22 ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio Boston, MA 41,46141.5k $352.0k $352.0k 0.00% —
23 WealthTrust Axiom LLC 0.13% of their portfolio WAYNE, PA 40,65340.7k $345.0k $345.0k 0.13% —
24 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 37,39037.4k $318.0k $318.0k 0.00% —
25 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 37,00037.0k $314.0k $314.0k 0.00% —
26 TWO SIGMA ADVISERS, LP 0.00% of their portfolio NEW YORK, NY 31,50031.5k $268.0k $268.0k 0.00% —
27 IRONWOOD INVESTMENT MANAGEMENT LLC 0.19% of their portfolio BOSTON, MA 31,38331.4k $267.0k $267.0k 0.19% —
28 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 30,65130.7k $260.0k $260.0k 0.00% —
29 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 24,15624.2k $205.0k $205.0k 0.00% —
30 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 19,72319.7k $168.0k $168.0k 0.00% —
31 Quadrature Capital Ltd 0.01% of their portfolio LONDON, X0 19,56619.6k $166.0k $166.0k 0.01% —
32 Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio VANCOUVER, A1 18,01418.0k $153.0k $153.0k 0.00% —
33 BOOTHBAY FUND MANAGEMENT, LLC 0.00% of their portfolio NEW YORK, NY 12,35212.4k $105.0k $105.0k 0.00% —
34 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 11,80011.8k $100.0k $100.0k 0.00% —
35 UBS Group AG 0.00% of their portfolio ZURICH, V8 10,00010.0k $85.0k $85.0k 0.00% —
36 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 4,7484.7k $41.0k $41.0k 0.00% —
37 EARNEST PARTNERS LLC 0.00% of their portfolio ATLANTA, GA 1,7001.7k $14.0k $14.0k 0.00% —
38 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 1,6291.6k $14.0k $14.0k 0.00% —
39 First Horizon Advisors, Inc. 0.00% of their portfolio MEMPHIS, TN 700700 $6.0k $6.0k 0.00% —
40 Strengthening Families & Communities, LLC 0.00% of their portfolio BOSTON, MA 490490 $4.0k $4.0k 0.00% —
41 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 114114 $1.0k $1.0k 0.00% —
42 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 7272 $1.0k $1.0k 0.00% —
43 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% —