Amkor Technology (AMKR) Stock: Why It Moved Today
Updated Oct 19, 2026, 4:00 PM ET · closing price
- Closed at $41.89, +0.17% vs the prior close of $41.82.
- Volume 3.73M shares, 1.0x its 50-day average.
- No new SEC filings since the prior session.
- No new insider buys or sales reported since the prior session.
AMKR ends flat (+0.2%) to $41.89. Closed at $41.89, +0.17% vs the prior close of $41.82. Day range $41.59–$43.94, opened at $43.78.
AMKR daily analysis — what happened
A plain-English, data-only note for every US trading day (today's note updates every 2 hours while the market is open). Newest first; older days stay archived below.
Oct 19, 2026 — AMKR ends flat (+0.2%) to $41.89
- Closed at $41.89, +0.17% vs the prior close of $41.82. Day range $41.59–$43.94, opened at $43.78.
- Volume was 3.73M shares, 1.0x its 50-day average of 3.90M.
- Price is -17.3% vs its 50-day average ($50.65) and -27.4% vs its 200-day average ($57.71).
- 52-week range $29.50–$96.68; today's close sits at 18% of that range, 56.7% below the 52-week high.
Oct 16, 2026 — AMKR slides 5.1% to $41.82, a 6-month low, 10 down days in a row
- Closed at $41.82, -5.06% vs the prior close of $44.05. Day range $41.66–$43.69, opened at $43.66.
- Volume was 2.93M shares, 0.7x its 50-day average of 3.91M.
- Price is -17.9% vs its 50-day average ($50.91) and -27.5% vs its 200-day average ($57.70).
- 52-week range $29.50–$96.68; today's close sits at 18% of that range, 56.7% below the 52-week high.
- That makes 10 straight losses.
Oct 15, 2026 — AMKR dips 1.7% to $44.05, a 1-month low, 9 down days in a row
- Closed at $44.05, -1.72% vs the prior close of $44.82. Day range $41.32–$44.18, opened at $42.19.
- Volume was 5.15M shares, 1.3x its 50-day average of 3.89M.
- Price is -13.9% vs its 50-day average ($51.16) and -23.6% vs its 200-day average ($57.69).
- 52-week range $29.50–$96.68; today's close sits at 22% of that range, 54.4% below the 52-week high.
- That makes 9 straight losses.
Oct 14, 2026 — AMKR slides 5.9% to $44.82, a 1-month low, 8 down days in a row
- Closed at $44.82, -5.86% vs the prior close of $47.61. Day range $44.31–$46.76, opened at $46.04.
- Volume was 3.08M shares, 0.8x its 50-day average of 3.95M.
- Price is -12.7% vs its 50-day average ($51.36) and -22.3% vs its 200-day average ($57.67).
- 52-week range $29.39–$96.68; today's close sits at 23% of that range, 53.6% below the 52-week high.
- That makes 8 straight losses.
Oct 13, 2026 — AMKR dips 1.0% to $47.61, 7 down days in a row
- Closed at $47.61, -1.04% vs the prior close of $48.11. Day range $46.30–$47.70, opened at $46.92.
- Volume was 2.57M shares, 0.6x its 50-day average of 4.01M.
- Price is -7.7% vs its 50-day average ($51.58) and -17.4% vs its 200-day average ($57.65).
- 52-week range $29.39–$96.68; today's close sits at 27% of that range, 50.8% below the 52-week high.
- That makes 7 straight losses.
Oct 12, 2026 — AMKR dips 2.1% to $48.11, 6 down days in a row
- Closed at $48.11, -2.06% vs the prior close of $49.12. Day range $47.31–$48.43, opened at $48.25.
- Volume was 3.06M shares, 0.7x its 50-day average of 4.09M.
- Price is -6.8% vs its 50-day average ($51.64) and -16.5% vs its 200-day average ($57.61).
- 52-week range $28.19–$96.68; today's close sits at 29% of that range, 50.2% below the 52-week high.
- That makes 6 straight losses.
Oct 9, 2026 — AMKR slides 3.7% to $49.12, 5 down days in a row
- Closed at $49.12, -3.69% vs the prior close of $51.00. Day range $48.77–$51.80, opened at $51.80.
- Volume was 4.26M shares, 1.0x its 50-day average of 4.18M.
- Price is -4.9% vs its 50-day average ($51.68) and -14.7% vs its 200-day average ($57.58).
- 52-week range $28.19–$96.68; today's close sits at 31% of that range, 49.2% below the 52-week high.
- That makes 5 straight losses.
Oct 8, 2026 — AMKR dips 2.4% to $51.00, 4 down days in a row
- Closed at $51.00, -2.43% vs the prior close of $52.27. Day range $49.75–$52.72, opened at $51.01.
- Volume was 3.54M shares, 0.8x its 50-day average of 4.35M.
- Price is -1.3% vs its 50-day average ($51.66) and -11.4% vs its 200-day average ($57.54).
- 52-week range $28.19–$96.68; today's close sits at 33% of that range, 47.2% below the 52-week high.
- That makes 4 straight losses.
Oct 7, 2026 — AMKR dips 2.1% to $52.27, 3 down days in a row
- Closed at $52.27, -2.10% vs the prior close of $53.39. Day range $51.11–$52.56, opened at $51.80.
- Volume was 2.54M shares, 0.5x its 50-day average of 4.70M — lighter than usual.
- Price is +1.5% vs its 50-day average ($51.49) and -9.1% vs its 200-day average ($57.48).
- 52-week range $28.19–$96.68; today's close sits at 35% of that range, 45.9% below the 52-week high.
- That makes 3 straight losses.
Oct 6, 2026 — AMKR dips 2.3% to $53.39
- Closed at $53.39, -2.27% vs the prior close of $54.63. Day range $53.26–$55.74, opened at $55.53.
- Volume was 2.94M shares, 0.6x its 50-day average of 4.87M.
- Price is +3.9% vs its 50-day average ($51.36) and -7.0% vs its 200-day average ($57.42).
- 52-week range $28.19–$96.68; today's close sits at 37% of that range, 44.8% below the 52-week high.
Oct 5, 2026 — AMKR dips 2.5% to $54.63
- Closed at $54.63, -2.48% vs the prior close of $56.02. Day range $54.38–$56.56, opened at $56.06.
- Volume was 4.33M shares, 0.9x its 50-day average of 4.97M.
- Price is +6.1% vs its 50-day average ($51.51) and -4.7% vs its 200-day average ($57.35).
- 52-week range $28.19–$96.68; today's close sits at 39% of that range, 43.5% below the 52-week high.
Oct 2, 2026 — AMKR jumps 5.9% to $56.02, a 1-month high
- Closed at $56.02, +5.90% vs the prior close of $52.90. Day range $54.13–$56.53, opened at $54.89.
- Volume was 4.35M shares, 0.9x its 50-day average of 4.95M.
- Price is +8.3% vs its 50-day average ($51.72) and -2.2% vs its 200-day average ($57.27).
- 52-week range $28.19–$96.68; today's close sits at 41% of that range, 42.1% below the 52-week high.
AMKR bull case vs bear case (from the data)
- Annual revenue grew 6.2% in the latest fiscal year (SEC XBRL).
- Latest fiscal-year net income: profit of $373.89M.
- Price is -17.3% vs its 50-day average — short-term trend is down.
- Price is -27.4% vs its 200-day average — below the long-term trend line.
- Insider selling outweighs buying: 25 sales vs 0 open-market buys among the 25 most recent reported insider trades (Form 4, last 12 months).
AMKR latest news & SEC filings
Every SEC filing by or about AMKR in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Oct 15, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Faust Megan sold 1,000 shares at $46.92 (≈$46.92K) on Oct 13, 2026; now holds 133,105
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 13, 2026 · Form 144 — Planned insider sale
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Oct 6, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Alexander Douglas A converted options/RSUs into 5,000 shares at $8.51 (≈$42.55K) on Oct 2, 2026; now holds 34,109
- Alexander Douglas A sold 5,000 shares at $55.00 (≈$275.00K) on Oct 2, 2026; now holds 29,109
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 2, 2026 · Form 144 — Planned insider sale
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Sep 24, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Sep 24, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Jul 28, 2026 · Form 10-Q — Quarterly report
Quarterly report (unaudited financial statements for the quarter)
Key figures from this report aren't in the SEC's structured data yet (usually appears within a day or two).
Jul 27, 2026 · Form 8-K — Major event / current report
Current report — a filing companies must make within 4 business days of a major event
- Item 2.02 — Reported results of operations (earnings release).
This is a results-day filing: the earnings press release is attached as an exhibit.
Things to know before you trade AMKR
- Last results release: Jul 27, 2026 (8-K Item 2.02). Previous ones: Apr 27, 2026, Feb 9, 2026, Oct 27, 2025. Based on that rhythm, the next report is likely around Oct 26, 2026 — an estimate, not a confirmed date.
- How much it moves: over the last 20 sessions the average daily move was 2.57% (largest 5.9%).
- Liquidity: about 3.45M shares (≈$144.58M) trade per day on average.
- 52-week position: $41.89 vs a range of $29.50–$96.68 (18% of the range).
- Dividends: last ex-dividend date Sep 2, 2026 ($0.084/share); 4 payments in the past 12 months.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 0 open-market buys, 25 sales; latest: Megan Faust sold 1,000 shares on Sep 8, 2026.
- Latest filings: 10-Q Jul 28, 2026; 8-K Jul 27, 2026; 8-K May 21, 2026.
- Share count: 247.87M shares outstanding (Apr 21, 2026), +0.3% vs a year earlier.
- Listing: Nasdaq · industry: Semiconductors & Related Devices.
AMKR market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 19, 2026 | 43.78 | 43.94 | 41.59 | 41.89 | 3.73M |
| Oct 16, 2026 | 43.66 | 43.69 | 41.66 | 41.82 | 2.96M |
| Oct 15, 2026 | 42.19 | 44.18 | 41.32 | 44.05 | 5.16M |
| Oct 14, 2026 | 46.04 | 46.76 | 44.31 | 44.82 | 3.08M |
| Oct 13, 2026 | 46.92 | 47.70 | 46.30 | 47.61 | 2.57M |
| Oct 12, 2026 | 48.25 | 48.43 | 47.31 | 48.11 | 3.06M |
| Oct 9, 2026 | 51.80 | 51.80 | 48.77 | 49.12 | 4.26M |
| Oct 8, 2026 | 51.01 | 52.72 | 49.75 | 51.00 | 3.54M |
| Oct 7, 2026 | 51.80 | 52.56 | 51.11 | 52.27 | 2.54M |
| Oct 6, 2026 | 55.53 | 55.74 | 53.26 | 53.39 | 2.94M |
| Oct 5, 2026 | 56.06 | 56.56 | 54.38 | 54.63 | 4.33M |
| Oct 2, 2026 | 54.89 | 56.53 | 54.13 | 56.02 | 4.35M |
| Oct 1, 2026 | 52.69 | 53.71 | 51.68 | 52.90 | 3.61M |
| Sep 30, 2026 | 54.43 | 54.74 | 52.23 | 52.38 | 4.54M |
| Sep 29, 2026 | 54.75 | 55.13 | 53.91 | 54.14 | 2.69M |
| Sep 28, 2026 | 53.18 | 53.81 | 51.61 | 53.18 | 3.45M |
| Sep 25, 2026 | 53.52 | 54.30 | 52.81 | 53.61 | 2.56M |
| Sep 24, 2026 | 51.99 | 53.03 | 51.55 | 52.69 | 2.70M |
| Sep 23, 2026 | 54.89 | 54.89 | 52.16 | 53.32 | 2.57M |
| Sep 22, 2026 | 51.61 | 54.81 | 51.30 | 54.59 | 4.42M |
About Amkor Technology
Amkor Technology (AMKR) is listed on the Nasdaq and classified by the SEC under “Semiconductors & Related Devices”. Its business address is in TEMPE, AZ. State of incorporation: DE. Fiscal year ends December 31. SEC CIK 1047127.
AMKR board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| Douglas A Alexander | Director | Sep 24, 2026 |
| Winston J Churchill | Director | Sep 24, 2026 |
| Roger Anthony Carolin | Director | Sep 24, 2026 |
| Kevin K. Engel | President and CEO | Jul 31, 2026 |
| Susan Y Kim | Member of 10% owner group (5) | Sep 24, 2026 |
| Daniel Jl Liao | Director | Sep 24, 2026 |
| Maryfrances Mccourt | Director | Sep 24, 2026 |
| Robert Randolph Morse | Director | Sep 24, 2026 |
| Guillaume Marie Jean Rutten | Director | Sep 24, 2026 |
| Gil C. Tily | Director | Sep 24, 2026 |
| David N Watson | Director | Sep 24, 2026 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| Cherie Buntyn | Chief Accounting Officer | Mar 16, 2026 |
| Kevin Engel | Executive Vice President | Jan 5, 2026 |
| Kevin K. Engel | President and CEO | Jul 31, 2026 |
| Megan Faust | CFO | Sep 10, 2026 |
| Farshad Haghighi | Executive Vice President | Feb 26, 2026 |
| Mark N Rogers | EVP & General Counsel | Aug 19, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Sep 8, 2026 | Megan Faust | Sale | 1,000 | $49.05 |
| Sep 8, 2026 | Megan Faust | Sale | 1,000 | $49.05 |
| Sep 8, 2026 | Megan Faust | Sale | 1,000 | $49.05 |
| Sep 8, 2026 | Megan Faust | Sale | 1,000 | $49.05 |
| Aug 17, 2026 | Mark N Rogers | Sale | 5,000 | $59.78 |
| Aug 17, 2026 | Mark N Rogers | Sale | 5,000 | $59.78 |
| Aug 17, 2026 | Mark N Rogers | Sale | 5,000 | $59.78 |
| Aug 17, 2026 | Mark N Rogers | Sale | 5,000 | $59.78 |
| Aug 11, 2026 | Megan Faust | Sale | 1,000 | $54.45 |
| Aug 11, 2026 | Megan Faust | Sale | 1,000 | $54.45 |
| Aug 11, 2026 | Megan Faust | Sale | 1,000 | $54.45 |
| Aug 11, 2026 | Megan Faust | Sale | 1,000 | $54.45 |
| Aug 7, 2026 | Douglas A Alexander | Sale | 5,000 | $55.81 |
| Aug 7, 2026 | Douglas A Alexander | Sale | 5,000 | $55.81 |
| Aug 7, 2026 | Douglas A Alexander | Sale | 5,000 | $55.81 |
AMKR financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Dec 31, 2025 | $6.71B | $373.89M | 1.50 | $1.10B |
| Dec 31, 2024 | $6.32B | $354.01M | 1.43 | $1.09B |
| Dec 31, 2023 | $6.50B | $359.81M | 1.46 | $1.27B |
| Dec 31, 2022 | $7.09B | $765.82M | 3.11 | $1.10B |
| Dec 31, 2021 | $6.14B | $643.00M | 2.62 | $1.12B |
Latest balance sheet: total assets $8.30B, total liabilities $3.73B, cash $1.12B (as of Mar 31, 2026).
AMKR earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| Jul 27, 2026 | 8-K Item 2.02 (results) | $60.71 |
| Apr 27, 2026 | 8-K Item 2.02 (results) | $75.62 |
| Feb 9, 2026 | 8-K Item 2.02 (results) | $52.52 |
| Oct 27, 2025 | 8-K Item 2.02 (results) | $33.18 |
| Jul 28, 2025 | 8-K Item 2.02 (results) | $21.23 |
| Apr 28, 2025 | 8-K Item 2.02 (results) | $17.48 |
| Feb 10, 2025 | 8-K Item 2.02 (results) | $24.36 |
| Oct 28, 2024 | 8-K Item 2.02 (results) | $29.53 |
| Jul 29, 2024 | 8-K Item 2.02 (results) | — |
| Apr 29, 2024 | 8-K Item 2.02 (results) | — |
| Feb 5, 2024 | 8-K Item 2.02 (results) | — |
| Oct 30, 2023 | 8-K Item 2.02 (results) | — |
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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 19, 2026, 4:00 PM ET. Filings: SEC EDGAR. Refreshed every 2 hours during US market hours.