John T Kim

CIK 1158926 · View on SEC EDGAR ↗

Insider

First SEC filing: Aug. 26, 2005 · Latest: Feb. 16, 2021

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Insider at

Insider transactions

0 buys (P) 1 sells (S) Net: $-484,900,000 + 53 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

53 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Feb. 12, 2026 AMKR S 10,000,000 $48.49 $484,900,000 29,594,980 Indirect -25.26% Disposed 5.0% (price as of 2026-08-21)
Aug. 1, 2025 AMKR P 441,589 $21.85 $9,648,720 3,789,479 Indirect +13.19% Acquired 133.0% (price as of 2026-08-21)
Feb. 24, 2025 AMKR P 869,565 $21.85 $18,999,995 3,347,890 Indirect +35.09% Acquired 133.0% (price as of 2026-08-21)
Feb. 22, 2023 AMKR S 384,000 $25.28 $9,707,520 11,964,832 Indirect -3.11% Disposed 101.4% (price as of 2026-08-21)
Feb. 22, 2023 AMKR S 384,000 $25.28 $9,707,520 12,348,832 Indirect -3.02% Disposed 101.4% (price as of 2026-08-21)
Feb. 22, 2023 AMKR S 384,000 $25.28 $9,707,520 12,732,832 Indirect -2.93% Disposed 101.4% (price as of 2026-08-21)
Feb. 22, 2023 AMKR S 384,000 $25.28 $9,707,520 13,116,832 Indirect -2.84% Disposed 101.4% (price as of 2026-08-21)
Feb. 22, 2023 AMKR S 384,000 $25.28 $9,707,520 13,500,832 Indirect -2.77% Disposed 101.4% (price as of 2026-08-21)
Dec. 30, 2021 AMKR S 1,337,332 $24.68 $33,005,354 21,963,134 Indirect -5.74% Disposed 106.3% (price as of 2026-08-21)
Dec. 30, 2021 AMKR S 1,187,087 $24.68 $29,297,307 23,300,466 Indirect -4.85% Disposed 106.3% (price as of 2026-08-21)
Dec. 30, 2021 AMKR S 1,187,087 $24.68 $29,297,307 24,487,553 Indirect -4.62% Disposed 106.3% (price as of 2026-08-21)
Dec. 17, 2020 AMKR S 816,613 $15.41 $12,584,006 42,597,108 Indirect -1.88% Disposed 230.3% (price as of 2026-08-21)
Dec. 17, 2020 AMKR S 816,613 $15.41 $12,584,006 43,413,721 Indirect -1.85% Disposed 230.3% (price as of 2026-08-21)
Dec. 17, 2020 AMKR S 816,613 $15.41 $12,584,006 44,230,334 Indirect -1.81% Disposed 230.3% (price as of 2026-08-21)
Dec. 17, 2020 AMKR S 1,633,226 $15.41 $25,168,013 45,046,947 Indirect -3.50% Disposed 230.3% (price as of 2026-08-21)
Jan. 12, 2017 AMKR P 19,484,809 — — 19,484,809 Indirect — Acquired (price as of 2026-08-21)
Feb. 11, 2008 AMKR P 2,726,800 $8.25 $22,496,100 2,726,800 Indirect — Acquired 517.0% (price as of 2026-08-21)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
March 8, 2022 AMKR Director stock option (right to buy) Common Stock (20,000) $7.31 May 19, 2022 20,000 Disposed
March 8, 2022 AMKR Director stock option (right to buy) Common Stock (20,000) $9.17 May 19, 2022 20,000 Disposed
March 8, 2022 AMKR Director stock option (right to buy) Common Stock (20,000) $4.50 May 19, 2022 20,000 Disposed
March 8, 2022 AMKR Director stock option (right to buy) Common Stock (20,000) $4.58 May 8, 2022 20,000 Disposed
May 3, 2021 AMKR Stock option (right to buy) Common Stock (20,000) $6.46 May 3, 2021 20,000 Disposed
Aug. 18, 2020 AMKR Employee Stock Option Common Stock (54,687) $9.48 Aug. 19, 2020 54,687 Disposed
Aug. 18, 2020 AMKR Employee Stock Option Common Stock (131,250) $9.86 Aug. 19, 2020 131,250 Disposed
April 28, 2020 AMKR Director Stock Option (Right-to-Buy) Common Stock (20,000) $7.71 May 3, 2020 20,000 Disposed
May 15, 2019 AMKR Director Stock Option (Right to Buy) Amkor Technology, Inc. Common Stock (20,000) $7.31 May 15, 2029 20,000 Disposed
May 15, 2019 AMKR Director Stock Option (Right to Buy) Amkor Technology, Inc. Common Stock (20,000) $7.31 May 15, 2029 20,000 Acquired
Feb. 15, 2019 AMKR Employee Stock Option (Right-to-Buy) Amkor Technology, Inc., Common Stock (175,000) $9.48 Feb. 15, 2029 175,000 Acquired
Feb. 27, 2017 AMKR Employee Stock Option (Right-to-Buy) Amkor Technology, Inc., Common Stock (175,000) $9.86 Feb. 27, 2027 175,000 Acquired
May 13, 2014 AMKR Director Stock Option (Right to Buy) Amkor Technology, Inc. Common Stock (20,000) $9.17 May 13, 2024 20,000 Acquired
May 8, 2013 AMKR Director Stock Option (Right to Buy) Amkor Technology, Inc. Common Stock (20,000) $4.50 May 8, 2023 20,000 Acquired
May 8, 2012 AMKR Director Stock Option (Right to Buy) Amkor Technology, Inc. Common Stock (20,000) $4.58 May 8, 2022 20,000 Acquired
May 3, 2011 AMKR Director Stock Option (Right to Buy) Amkor Technology, Inc. Common Stock (20,000) $6.46 May 3, 2021 20,000 Acquired
May 3, 2010 AMKR Director Stock Option (Right to Buy) Amkor Technology Inc. Common Stock (20,000) $7.71 May 3, 2020 20,000 Acquired
May 4, 2009 AMKR Director Stock Option (Right to Buy) Amkor Technology, Inc. Common Stock (20,000) $4.50 May 4, 2019 20,000 Acquired
May 5, 2008 AMKR Director Stock Option (Right to Buy) Amkor Technology, Inc. Common Stock (20,000) $11.88 May 5, 2018 20,000 Acquired
Aug. 6, 2007 AMKR Director Stock Option (right to buy) Amkor Technology, Inc. Common Stock (10,000) $10.97 Aug. 6, 2017 10,000 Acquired
Aug. 8, 2006 AMKR Director Stock Option (right to buy) Amkor Technology, Inc. Common Stock (10,000) $5.82 Aug. 8, 2016 10,000 Acquired
Aug. 24, 2005 AMKR Director Stock Option (Right to Buy) Amkor Technology, Inc. Common Stock (20,000) $5.02 Aug. 24, 2015 20,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 5 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
Aug. 26, 2005 AMKR Common Stock 13,957,344 Indirect
Aug. 26, 2005 AMKR Common Stock 500,000 Indirect
Aug. 26, 2005 AMKR Common Stock 10,000 Indirect
Aug. 26, 2005 AMKR Common Stock 10,000 Indirect
Aug. 26, 2005 AMKR Option (Right to Buy)→ Amkor Technology, Inc. Common Stock (4,000) 4,000 Direct