Haghighi Farshad 4

4 · AMKOR TECHNOLOGY, INC. · Filed Feb 26, 2026

AI-generated summary of this filing

Updated Feb 26, 2026

Amkor EVP Farshad Sells 15,624 Shares

What Happened

Farshad Haghighi, Executive Vice President of Amkor Technology (AMKR), had 1,814 RSUs convert to common stock on Feb 24, 2026 (derivative conversion). Of those, 815 shares were withheld to satisfy tax withholding obligations (valued at $48.53/share; ~$39,552). On Feb 25, 2026 he sold 15,624 shares in an open-market transaction at $50.50/share, generating proceeds of about $789,012.
Overall this series of actions reflects RSU vesting (conversion into shares), tax withholding via share retention, followed by an open-market sale of shares — a routine liquidity event rather than a purchase.

Key Details

Transaction dates & prices:
- Feb 24, 2026: RSU conversion (1,814 shares) reported as exercise/conversion (code M) at $0.00 per share.
- Feb 24, 2026: 815 shares withheld for taxes (code F) at $48.53/share; $39,552 value.
- Feb 25, 2026: Open-market sale (code S) of 15,624 shares at $50.50/share; ~$789,012 proceeds.
Shares owned after transaction: Not specified in the provided Form 4.
Footnotes: Shares withheld represent tax withholding on RSU vesting; issuer (Amkor) pays these taxes on Farshad’s behalf. The RSUs were time‑vested awards granted Feb 24, 2022 that vest in four equal annual installments.
Timeliness: Form 4 was filed Feb 26, 2026 for transactions on Feb 24–25, 2026 — appears timely (within the standard reporting window).

Context

This was a conversion of vested RSUs and subsequent sale of shares (a common cashless exercise/monetization of equity compensation). Such transactions are typically routine liquidity events tied to compensation vesting and withholding, not direct purchases indicating bullish insider conviction.

Form 4

Period: 2026-02-24

Executive Vice President

Transactions

Exercise/Conversion
Common Stock
2026-02-24+1,814→ 24,793 total
Tax Payment
Common Stock
[F1]
2026-02-24$48.53/sh−815$39,552→ 23,978 total
Sale
Common Stock
2026-02-25$50.50/sh−15,624$789,012→ 8,354 total
Exercise/Conversion
Restricted Stock Units
[F2]
2026-02-24−1,814→ 0 total
Exercise: $0.00→ Common Stock (1,814 underlying)

Footnotes (2)

[F1]The transaction represents shares withheld by Amkor Technology, Inc. (the "Issuer") in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 24, 2022 (the "Grant Date") pursuant to the Issuer's 2021 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person.
[F2]Represents shares of the Issuer's common stock underlying time-vested RSUs on the Grant Date pursuant to the Issuer's Equity Incentive Plan. The RSUs were awarded for no consideration other than the Reporting Person's service as a service provider of the Issuer and vested in four equal annual installments beginning on the first anniversary of the Grant Date.

Signature

/s/ Mark N. Rogers, Attorney-in-Fact for Farshad Haghighi|2026-02-26

1 file