Recent 8-K filings for AMKR

• July 27, 2026, 4:08 PM ET earnings materiality 0.80 positive item 2.02item 9.01

  Amkor Q2 net sales $1.90B (+26% YoY); EPS $0.70; Q3 guidance $1.95-2.05B

  Net sales $1.90B, up 26% YoY; net income $174M, diluted EPS $0.70.

• May 21, 2026, 8:50 AM ET other material materiality 0.20 neutral item 7.01item 9.01

  Amkor Technology holds Investor Day on May 21, 2026; presentation furnished without specific financial targets in filing

  Investor Day held at Convene 810 Seventh Avenue in New York City on May 21, 2026.

• May 19, 2026, 4:14 PM ET other materiality 0.05 neutral item 5.07 ◈ Shareholder Votes ×3

  Amkor shareholders elect 11 directors, approve say-on-pay, ratify PwC at annual meeting

  All 11 director nominees elected; votes for ranged from 205.9M to 214.9M.

• May 5, 2026, 7:59 PM ET debt materiality 0.65 neutral item 1.01item 2.03item 3.02item 9.01 ◈ Debt Financings◈ Equity Issuances◈ Material Agreements

  Amkor issues $1.15B zero-coupon convertible notes due 2031; enters capped call transactions

  Issued $1,150M aggregate principal of 0.00% Convertible Senior Notes due July 15, 2031.

• May 1, 2026, 7:59 PM ET debt materiality 0.75 neutral item 8.01item 9.01

  Amkor Technology prices $1B zero-coupon convertible notes due 2031, conversion price $106.37

  $1,000M aggregate principal of 0.00% Convertible Senior Notes due 2031 priced; initial purchasers have option for additional $150M.

• April 30, 2026, 7:59 PM ET debt materiality 0.65 neutral item 8.01item 9.01

  Amkor announces $1B convertible notes offering due 2031

  $1,000,000,000 aggregate principal of convertible senior notes due 2031; option for additional $150M.

• April 27, 2026, 7:59 PM ET earnings materiality 0.75 positive item 2.02item 9.01

  Amkor posts record Q1 revenue $1.68B, up 27% YoY; EPS $0.33; authorizes $300M buyback

  Record Q1 net sales $1.685B, up 27% YoY from $1.322B; gross margin 14.2% vs 11.9% YoY.

• February 13, 2026, 6:59 PM ET other material materiality 0.50 neutral item 8.01item 9.01

  Amkor Technology enters secondary offering of 10M shares at $48.75 by Chairman family entity

  Selling stockholder 915 Investments, LP (affiliated with Chairman Susan Y. Kim) to sell 10M shares at $48.75 each via Goldman Sachs.

• February 9, 2026, 6:59 PM ET earnings materiality 0.70 neutral item 2.02item 9.01

  Amkor Q4 net sales $1.89B up 16% YoY; guides Q1 2026 net sales $1.60-1.70B

  Q4 net sales $1.89B (+16% YoY); net income $172M ($0.69 diluted EPS).

• February 2, 2026, 6:59 PM ET leadership materiality 0.25 neutral item 5.02

  Amkor appoints Cherie Buntyn as SVP and Chief Accounting Officer

  Cherie Buntyn, 50, named Senior Vice President and Chief Accounting Officer, effective Feb 2, 2026.

• November 3, 2025, 6:59 PM ET leadership materiality 0.40 neutral item 5.02

  Director John Liu resigns from board; appointed EVP Corporate Development & Strategy

  John Liu resigned from the Board on October 28, 2025, not due to disagreement with the Company.

• October 27, 2025, 7:59 PM ET leadership materiality 0.85 positive item 2.02item 5.02item 7.01item 9.01

  Amkor reports Q3 revenue $1.987B (+31% seq), EPS $0.51; CEO Rutten to retire, Engel named successor

  Q3 net sales $1.987B (+31% seq), net income $127M, diluted EPS $0.51.

• September 22, 2025, 7:59 PM ET debt materiality 0.65 positive item 1.01item 2.03item 8.01item 9.01 ◈ Debt Financings

  Amkor issues $500M 5.875% notes due 2033, redeems $400M 6.625% notes due 2027

  Issued $500M aggregate principal of 5.875% Senior Notes due October 1, 2033; interest payable semi-annually April 1 and October 1 starting April 2026.

• September 8, 2025, 7:59 PM ET debt materiality 0.50 neutral item 8.01item 9.01

  Amkor to offer $400M senior notes due 2033; plans to redeem $400M 6.625% notes due 2027

  Offering $400M aggregate principal amount of senior notes due 2033 in private placement under Rule 144A/Reg S.

• September 8, 2025, 7:59 PM ET debt materiality 0.60 neutral item 8.01item 9.01

  Amkor prices $500M of 5.875% senior notes due 2033, to redeem $400M 6.625% notes due 2027

  $500M aggregate principal 5.875% Senior Notes due 2033 priced; expected close Sept 22, 2025.

• July 28, 2025, 7:59 PM ET earnings materiality 0.75 positive item 2.02item 9.01

  Amkor Q2 revenue $1.51B, above guidance; Q3 EPS outlook $0.34-0.48

  Net sales $1.511B, up 14% sequentially; EPS $0.22 (incl. $0.07 Nanium benefit).

• July 1, 2025, 7:59 PM ET debt materiality 0.55 positive item 1.01item 2.03item 8.01item 9.01 ◈ Debt Financings

  Amkor obtains $500M term loan, redeems $125M of 6.625% notes due 2027

  New $500M Term A-1 Loans mature May 9, 2030; annual amortization starts 2026 at 2.5% then 5%.

• May 20, 2025, 7:59 PM ET other material materiality 0.15 neutral item 5.07

  Amkor shareholders elect all 11 directors, approve charter amendment at annual meeting

  All 11 director nominees elected; Winston J. Churchill received 17.7M votes against (approx. 7.8% of votes cast).

• May 13, 2025, 7:59 PM ET debt materiality 0.50 neutral item 1.01item 2.03item 1.02item 9.01 ◈ Debt Financings

  Amkor Technology enters new $1B revolving credit facility maturing 2030

  New $1B revolving credit facility replaces existing facility from March 2022.

• April 28, 2025, 7:59 PM ET earnings materiality 0.70 negative item 2.02item 9.01

  Amkor Q1 EPS $0.09 (down 63% YoY); guides Q2 rev $1.375-1.475B

  Net sales $1.32B, down from $1.366B YoY and $1.629B QoQ; net income $21M ($0.09 diluted EPS).

• February 10, 2025, 6:59 PM ET earnings materiality 0.75 negative item 2.02item 9.01

  Amkor Tech Q4 2024 net sales $1.63B, EPS $0.43; guides Q1 2025 well below Q4

  Q4 2024 net sales $1.63B, net income $106M ($0.43 diluted EPS); full-year net sales $6.32B, net income $354M ($1.43 EPS).

• December 16, 2024, 6:59 PM ET leadership materiality 0.35 neutral item 5.02item 7.01item 9.01

  Amkor appoints John D. Liu to board, expanding to 11 directors

  John D. Liu joins Amkor's Board of Directors effective December 16, 2024.

• October 28, 2024, 7:59 PM ET earnings materiality 0.75 neutral item 2.02item 9.01

  Amkor Q3 revenue $1.86B (+27% seq); EPS $0.49; guides Q4 rev $1.60-1.70B

  Net sales $1.86B, up 27% sequentially; gross margin 14.6% vs 14.5% in Q2 2024.

• September 18, 2024, 7:59 PM ET leadership materiality 0.65 neutral item 5.02item 7.01item 9.01 ◈ executive_change ×3

  Founder James Kim to retire as Executive Chairman; Susan Kim becomes Chairman Oct 31

  James J. Kim steps down as Executive Chairman effective October 31, 2024.

• July 29, 2024, 7:59 PM ET earnings materiality 0.75 positive item 2.02item 9.01

  Amkor Q2 revenue $1.46B, EPS $0.27; Q3 guide revenue ~$1.83B, EPS ~$0.49

  Q2 net sales $1.461B, up 7% sequentially; net income $67M ($0.27 diluted EPS).

• May 17, 2024, 7:59 PM ET other materiality 0.15 neutral item 5.07 ◈ Shareholder Votes ×4

  Amkor shareholders elect all 11 directors, approve say-on-pay, reject DEI proposal

  All 11 director nominees elected; Gil C. Tily received 180.6M votes for, most others >200M.

• April 29, 2024, 7:59 PM ET earnings materiality 0.70 neutral item 2.02item 9.01 ◈ Earnings Releases

  Amkor Q1 net sales $1.37B, EPS $0.24 in line; sees Q2 sales $1.4-1.5B

  Net sales $1.37B (down 7% YoY), net income $59M, diluted EPS $0.24.

• February 5, 2024, 6:59 PM ET earnings materiality 0.80 negative item 2.02item 9.01 ◈ Earnings Releases ×3

  Amkor Q4 net sales $1.75B, net income $118M; FY2023 rev down 8% YoY; guides Q1 weak

  Q4 net sales $1.75B; net income $118M ($0.48 diluted EPS). Full year net sales $6.50B (-8% YoY); net income $360M ($1.46 EPS) vs $766M ($3.11 EPS) in 2022.

• December 18, 2023, 6:59 PM ET other materiality 0.35 neutral item 5.02

  Amkor awards $5.01M in PSUs and RSUs to CEO; other execs receive PSUs

  CEO Guillaume Rutten granted 106,638 PSUs ($3.55M) and 43,857 RSUs ($1.46M) under 2021 Equity Incentive Plan.

• December 15, 2023, 6:59 PM ET leadership materiality 0.50 neutral item 5.02 ◈ executive_change ×2

  Amkor EVP Worldwide Manufacturing Steve Shin departs; JinAn Lee named successor

  Sung (Steve) Shin to leave Amkor on December 15, 2023; JinAn Lee to lead manufacturing effective same date.

• October 30, 2023, 7:59 PM ET earnings materiality 0.75 neutral item 2.02item 9.01 ◈ Earnings Releases ×2

  Amkor Q3 net sales $1.82B, EPS $0.54; Q4 guidance $1.625-1.725B

  Net sales $1.822B up 25% sequentially but down 12.6% YoY from $2.084B.

• September 7, 2023, 7:59 PM ET other material materiality 0.70 neutral item 8.01item 9.01

  Amkor Technology registers secondary offering of 10M shares by Kim family affiliate at $23.22/sh

  Selling stockholder 915 Investments, LP (Kim family affiliate) selling 10M AMKR shares at $23.22 per share.

• July 31, 2023, 7:59 PM ET earnings materiality 0.70 negative item 2.02item 9.01 ◈ Earnings Releases

  Amkor Q2 net income falls to $64M from $125M YoY; guides Q3 sales $1.73B-$1.83B

  Net sales $1.46B, down from $1.51B YoY; gross margin 12.8% vs 16.6%.

• May 19, 2023, 7:59 PM ET other materiality 0.15 neutral item 5.07 ◈ Shareholder Votes ×4

  Amkor shareholders elect all 11 director nominees; annual say-on-pay frequency adopted

  All 11 director nominees elected with majority support; James J. Kim received 219.6M for, 9.2M withheld.

• May 1, 2023, 7:59 PM ET earnings materiality 0.80 negative item 2.02item 9.01 ◈ Earnings Releases ×2

  Amkor Q1 2023 net sales $1.47B, net income $45M; EPS $0.18 down 74% YoY

  Net sales $1.47B, down 8% YoY from $1.60B; net income $45M vs $171M.

• February 13, 2023, 6:59 PM ET earnings materiality 0.80 negative item 2.02item 9.01 ◈ Earnings Releases ×3

  Amkor reports record FY2022 revenue $7.09B, EPS $3.11; Q1 guidance weak with revenue down 9% YoY

  FY2022 record net sales $7.09B (+16% YoY), record net income $766M, diluted EPS $3.11.

• November 18, 2022, 6:59 PM ET leadership materiality 0.40 neutral item 5.02

  Amkor enters severance agreements with CEO and three EVPs; enhanced CIC terms

  CEO Giel Rutten gets 18-month base salary + target bonus continuation on non-cause or good-reason termination.

• October 31, 2022, 7:59 PM ET earnings materiality 0.85 positive item 2.02item 9.01 ◈ Earnings Releases ×2

  Amkor posts record Q3: revenue $2.1B (+24% YoY), EPS $1.24; Q4 guidance soft

  Net sales $2,084M, up 24% YoY; net income $306M, EPS $1.24 diluted (quarterly records).

• August 1, 2022, 7:59 PM ET earnings materiality 0.75 positive item 2.02item 9.01

  Amkor Q2 revenue $1.5B, EPS $0.51; Q3 guidance $1.88-1.98B

  Q2 net sales $1.5B, net income $125M ($0.51 diluted EPS); record Q2 revenue, down sequentially from Q1.

• May 20, 2022, 7:59 PM ET other materiality 0.15 neutral item 5.07

  Amkor shareholders elect 11 directors; advisory say-on-pay and auditor ratification pass

  All 11 board nominees elected; Winston J. Churchill received 38,792,201 withhold votes, the highest.

• May 2, 2022, 7:59 PM ET earnings materiality 0.75 neutral item 2.02item 9.01

  Amkor Q1 net sales $1.6B +20% YoY, EPS $0.69; Q2 guide hit by Shanghai COVID lockdown

  Q1 net sales $1.597B (+20% YoY); net income $171M ($0.69 diluted EPS); gross margin 20.4%.

• March 29, 2022, 7:59 PM ET debt materiality 0.50 neutral item 1.01item 2.03item 1.02item 9.01

  Amkor enters $600M secured revolving credit facility, replacing prior facility

  New $600M revolver via Amkor Technology Singapore; availability = $250M base + 37.5% of consolidated AR.

• February 14, 2022, 6:59 PM ET earnings materiality 0.85 positive item 2.02item 9.01

  Amkor posts record FY2021 revenue $6.14B, EPS $2.62; Q1 2022 guidance issued

  Q4 net sales $1.72B (record), up 26% YoY; EPS $0.88 (record).

• October 25, 2021, 7:59 PM ET earnings materiality 0.80 positive item 2.02item 9.01

  Amkor Technology posts record Q3 2021 revenue of $1.68B, EPS $0.74, up 95% YoY

  Record net sales $1.68B, up 20% sequentially and 24% YoY; all end markets set new records.

• September 28, 2021, 7:59 PM ET leadership materiality 0.55 neutral item 5.02 ◈ executive_change

  Amkor finalizes retirement terms for EVP John C. Stone, effective March 31, 2022

  John C. Stone to retire on March 31, 2022; separation agreement finalized September 27, 2021.

• September 17, 2021, 7:59 PM ET leadership materiality 0.40 neutral item 5.02 ◈ executive_change ×2

  Amkor EVP & Chief Sales Officer John Stone to retire March 2022; successor named

  John C. Stone, EVP and Chief Sales Officer, intends to retire effective March 31, 2022.

• July 26, 2021, 7:59 PM ET earnings materiality 0.85 positive item 2.02item 9.01

  Amkor Q2 net sales record $1.41B (+20% YoY); EPS $0.51; Q3 guidance $1.65-1.75B

  Net sales of $1.407B (+20% YoY, +6% sequential), above high end of guidance.

Executive changes

Earnings & guidance

Materiality & sentiment trend

Max materiality 0.85 · Median 0.65 · Most common event earnings

12 positive 6 negative 29 neutral

source · AMKR on sec.gov