AMKOR TECHNOLOGY, INC.·4

Apr 9, 5:03 PM ET

Morse Robert Randolph 4

4 · AMKOR TECHNOLOGY, INC. · Filed Apr 9, 2026

Research Summary

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Amkor (AMKR) Director Robert Morse Exercises 20,000 Options

What Happened

  • Robert Randolph Morse, a director of Amkor Technology (AMKR), exercised 20,000 stock options on April 7, 2026. The exercise price was $5.66 per share, for a total exercise cost of $113,200. As part of a net (cashless) exercise, 2,378 shares were withheld to cover tax obligations, leaving a net delivery of 17,622 shares to Morse.
  • The Form 4 also reports the associated derivative instrument being converted/removed as part of the exercise (reported at $0.00). No open-market purchase or sale occurred.

Key Details

  • Transaction dates: April 7, 2026 (reported on Form 4 filed April 9, 2026).
  • Exercise: 20,000 shares acquired at $5.66 per share = $113,200.
  • Tax withholding: 2,378 shares withheld (code F) — net shares delivered = 17,622.
  • Derivative conversion: Option reported as converted/disposed (code M) in connection with the exercise.
  • Footnotes: F1 — net exercise exempt under Section 16b-3; no open-market trades. F2 — option was granted May 4, 2016 and vested May 2, 2017.
  • Shares owned after transaction: not provided in the excerpt of the filing.
  • Timeliness: Form filed two days after the transaction date (Apr 9 filing for Apr 7 transaction), consistent with typical Section 16 reporting windows.

Context

  • This was an option exercise (code M) executed as a net or cashless exercise, meaning some shares were withheld to pay taxes rather than sold in the open market. That is a routine way executives/directors often convert options to stock and does not by itself indicate a buy or sell sentiment on the open market.
  • No open-market sale was reported; the transaction reflects converting vested options (granted in 2016, vested in 2017) into shares with withholding for taxes.

Insider Transaction Report

Form 4
Period: 2026-04-07
Transactions
  • Exercise/Conversion

    Common Stock

    2026-04-07$5.66/sh+20,000$113,200137,355 total
  • Tax Payment

    Common Stock

    [F1]
    2026-04-072,378134,977 total
  • Exercise/Conversion

    Director Stock Option (Right-to-Buy)

    [F2]
    2026-04-0720,0000 total
    Exercise: $5.66From: 2017-05-04Exp: 2026-05-04Common Stock (20,000 underlying)
Footnotes (2)
  • [F1]Exempt purchase under Section 16b-3. Transaction executed as net exercise executed with Amkor Technology, Inc. (the "Issuer"), in which no shares were purchased or sold in the open market.
  • [F2]This stock option to acquire 20,000 shares of the Issuer's Common Stock was granted on May 4, 2016 and vested in full on May 2, 2017.
Signature
/s/ Mark N. Rogers, Attorney-in-Fact for Robert R. Morse|2026-04-09

Documents

1 file
  • 4
    wk-form4_1775768591.xmlPrimary

    FORM 4