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Amtech Systems, Inc. is offering 2,926,829 shares of Common Stock at a public offering price of $20.50 per share pursuant to this prospectus supplement. The offering is underwritten on a firm commitment basis by Titan Partners Group LLC and is expected to deliver on or about June 3, 2026, subject to customary closing conditions.
The prospectus supplement states net proceeds to Amtech are expected to be approximately $56.6 million after underwriting discounts and estimated offering expenses. The company says it intends to use proceeds to accelerate growth in semiconductor packaging and wafer substrate fabrication platforms, pursue accretive M&A opportunities, and for working capital and general corporate purposes.
Amtech Systems’ significant shareholder group filed an amended ownership report and detailed a new lock-up agreement. As of June 2, 2026, the reporting persons had collectively acquired 3,009,258 common shares over prior purchases for about $23 million, funded from available cash.
Individual beneficial holdings include 600,000 shares (approximately 4.1%) for Piton Capital Partners, 1,386,312 shares (9.6%) for the Cornice trust, 263,688 shares (1.8%) for M3C Holdings, 22,917 shares (0.2%) for OIH, and 2,986,341 shares (20.6%) for Robert Averick. Percentages are based on 14,499,088 shares outstanding. Averick, a director and portfolio manager at Kokino, has entered into a lock-up agreement related to an underwritten public offering, restricting most share sales for 60 days after the offering’s closing, subject to specified exceptions.
Amtech Systems, Inc. is offering shares of its common stock pursuant to a shelf registration that permits up to $50,000,000 of securities to be sold from time to time, subject to completion (dated June 1, 2026).
The prospectus supplement relates to an underwritten firm-commitment offering of common stock with the public offering price and number of shares left blank in this excerpt. The company states net proceeds will be used to accelerate growth in semiconductor packaging and wafer substrate fabrication, pursue accretive M&A, and for working capital and general corporate purposes. The excerpt shows 14,557,272 shares outstanding as of May 21, 2026, and discloses 911,249 options, 149,416 RSUs outstanding and 606,692 shares reserved under the 2022 Equity Incentive Plan as of that date.
Amtech Systems director Robert M. Averick reported exercising director stock options to acquire a total of 18,000 shares of Common Stock on May 28, 2026. The options had exercise prices of $10.22, $11.51, and $7.40 per share.
Following these exercises, a Form 4 entry shows 713,341 Common Shares held directly and 2,839 Restricted Stock Units outstanding, each RSU representing one share of Common Stock. Footnotes state that 2,250,000 Common Shares are beneficially owned by Kokino Family Clients and 11,000 Common Shares are held by his spouse. After the reported transactions, no director stock options remain outstanding for Mr. Averick.
Amtech Systems, Inc. President & COO Guy Shechter received a grant of stock options covering 50,000 shares of common stock. These options were awarded as an employee stock option on the reported grant date and are classified as a grant or award acquisition, not an open-market purchase or sale.
The options have an exercise price of $19.67 per share and expire in 2036 if not exercised earlier. One-third of the award vests on each of the first three anniversaries of the grant date, meaning the award becomes exercisable over three years. Following this grant, Shechter holds 50,000 stock options directly.
Amtech Systems, Inc. reported that its Chief Financial Officer, Thomas B. Sabol, received a grant of employee stock options covering 45,000 shares of Amtech Systems, Inc. $0.01 par value common stock. These options have an exercise price of $22.4600 per share and expire on May 14, 2036.
One-third of the options vest on each of the first three anniversaries of the grant date, aligning the award with multi‑year service and performance. Following this grant, Sabol holds 45,000 stock options directly. This is a compensation-related grant, not an open‑market purchase or sale of shares.
AMTECH SYSTEMS INC executive Guy Shechter, serving as President & COO, has filed an initial Form 3 statement of beneficial ownership. The filing shows no reported transactions, exercises, gifts, or restructuring events and no derivative positions, indicating this is a baseline disclosure rather than a trading report.
AMTECH SYSTEMS INC filed an initial ownership report for Chief Financial Officer Thomas B. Sabol on Form 3. The filing lists him as an officer but shows no reported transactions or holdings in either common stock or derivative securities in the data provided.
Amtech Systems, Inc. reported an initial insider ownership filing for Mark Weaver, who serves as Interim CFO. This Form 3 does not list any stock purchases, sales, option exercises, or other transactions, and functions as a baseline disclosure of his status as an officer.
Amtech Systems, Inc. appointed Guy Shechter as President and Chief Operating Officer, effective May 19, 2026, reporting to the CEO. Shechter, age 57, brings prior leadership experience from Yield Engineering Systems and Veeco Instruments. His offer includes a $400,000 base salary, a target bonus equal to 50% of base pay (60% cash, 40% restricted stock), and 50,000 stock options vesting over three years.
The package also provides $10,000 per month for his first six months, up to $25,000 in relocation support, and severance protections. If a Change in Control occurs and his responsibilities are materially diminished, he is eligible for 12 months of base salary, continued bonus eligibility, and full acceleration of unvested equity awards; termination without Cause provides six months of salary and COBRA coverage.