AMKR insider buying and SEC filings, explained
Amkor Technology, Inc. · CIK 1047127
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$12.4M
Planned sales (10b5-1)
$6.6M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 13, 2026 | Planned (10b5-1) | Megan Faust (CFO) sold 1,000 shares at $46.92 ($47K), marked as a 10b5-1 plan trade. Holdings down 1% to 133,105 shares. | SEC filing Filed Oct 15, 2026, 4:16 PM ET |
| Oct 2, 2026 | Planned (10b5-1) | Douglas A. Alexander (Director) sold 5,000 shares at $55.00 ($275K), marked as a 10b5-1 plan trade. Holdings down 15% to 29,109 shares. | SEC filing Filed Oct 6, 2026, 4:35 PM ET |
| Sep 8, 2026 | Planned (10b5-1) | Megan Faust (CFO) sold 1,000 shares at $49.05 ($49K), marked as a 10b5-1 plan trade. Holdings down 1% to 134,105 shares. | SEC filing Filed Sep 10, 2026 |
| Aug 17, 2026 | Planned (10b5-1) | Mark N. Rogers (EVP & General Counsel) sold 5,000 shares at $59.78 ($299K), marked as a 10b5-1 plan trade. Holdings down 11% to 38,904 shares. | SEC filing Filed Aug 19, 2026 |
| Aug 11, 2026 | Planned (10b5-1) | Megan Faust (CFO) sold 1,000 shares at $54.45 ($54K), marked as a 10b5-1 plan trade. Holdings down 1% to 135,105 shares. | SEC filing Filed Aug 13, 2026 |
| Aug 7, 2026 | Planned (10b5-1) | Douglas A. Alexander (Director) sold 5,000 shares at $55.81 ($279K), marked as a 10b5-1 plan trade. Holdings down 15% to 29,109 shares. | SEC filing Filed Aug 11, 2026 |
| Aug 5–6, 2026 | Sale | Guillaume Marie Jean Rutten (Director) sold 50,000 shares between Aug 5 and Aug 6 at about $54.93 ($2.7M). Holdings down 10% to 461,732 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 7, 2026 |
| Jul 30, 2026 | Sale | Kevin K. Engel (CEO and Director) sold 3,221 shares at $47.00 ($151K). Holdings down 25% to 9,666 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jul 31, 2026 |
| Jul 16, 2026 | Planned (10b5-1) | Mark N. Rogers (EVP & General Counsel) sold 5,000 shares at $65.12 ($326K), marked as a 10b5-1 plan trade. Holdings down 11% to 38,904 shares. | SEC filing Filed Jul 20, 2026 |
| Jul 14, 2026 | Planned (10b5-1) | Megan Faust (CFO) sold 1,000 shares at $69.91 ($70K), marked as a 10b5-1 plan trade. Holdings down 1% to 136,105 shares. | SEC filing Filed Jul 16, 2026 |
| Jun 16, 2026 | Planned (10b5-1) | Mark N. Rogers (EVP & General Counsel) sold 5,000 shares at $86.21 ($431K), marked as a 10b5-1 plan trade. Holdings down 11% to 38,904 shares. | SEC filing Filed Jun 18, 2026 |
| Jun 9, 2026 | Planned (10b5-1) | Megan Faust (CFO) sold 1,000 shares at $70.30 ($70K), marked as a 10b5-1 plan trade. Holdings down 1% to 132,138 shares. | SEC filing Filed Jun 11, 2026 |
| May 19, 2026 | Planned (10b5-1) | Megan Faust (CFO) sold 1,000 shares at $64.60 ($65K), marked as a 10b5-1 plan trade. Holdings down 1% to 133,138 shares. | SEC filing Filed May 20, 2026 |
| May 18, 2026 | Planned (10b5-1) | Mark N. Rogers (EVP & General Counsel) sold 5,000 shares at $71.63 ($358K), marked as a 10b5-1 plan trade. Holdings down 11% to 38,904 shares. | SEC filing Filed May 20, 2026 |
| May 11, 2026 | Sale | Gil C. Tily (Director) sold 15,000 shares at $77.30 ($1.2M). Holdings down 12% to 108,806 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 13, 2026 |
| May 8, 2026 | Sale | Guillaume Marie Jean Rutten (Director) sold 50,000 shares at about $74.28 ($3.7M). Holdings down 9% to 502,558 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 12, 2026 |
| May 5, 2026 | Sale | Winston J. Churchill (Director) sold 7,000 shares at $76.45 ($535K). Holdings down 27% to 18,888 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 7, 2026 |
| Apr 16, 2026 | Planned (10b5-1) | Mark N. Rogers (EVP & General Counsel) sold 5,000 shares at $59.43 ($297K), marked as a 10b5-1 plan trade. Holdings down 11% to 38,904 shares. | SEC filing Filed Apr 20, 2026 |
| Mar 16, 2026 | Planned (10b5-1) | Mark N. Rogers (EVP & General Counsel) sold 5,000 shares at $44.54 ($223K), marked as a 10b5-1 plan trade. Holdings down 11% to 38,904 shares. | SEC filing Filed Mar 18, 2026 |
| Feb 24, 2026 | Sale | Kevin K. Engel (CEO and Director) sold 12,500 shares at about $48.75 ($609K). Holdings down 81% to 2,953 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 26, 2026 |
| Feb 24, 2026 | Sale | Guillaume Marie Jean Rutten (Director) sold 20,000 shares at about $48.80 ($976K). Holdings down 4% to 543,866 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 26, 2026 |
| Feb 25, 2026 | Sale | Farshad Haghighi (Executive Vice President) sold 15,624 shares at $50.50 ($789K). Holdings down 65% to 8,354 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 26, 2026 |
| Feb 17, 2026 | Planned (10b5-1) | Guillaume Marie Jean Rutten (Director) sold 10,000 shares at about $45.89 ($459K), marked as a 10b5-1 plan trade. Holdings down 3% to 339,311 shares. | SEC filing Filed Feb 18, 2026 |
| Feb 17, 2026 | Sale | Kevin K. Engel (CEO and Director) sold 5,316 shares at $46.03 ($245K). Holdings down 87% to 786 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 18, 2026 |
| Feb 17, 2026 | Planned (10b5-1) | Mark N. Rogers (EVP & General Counsel) sold 5,000 shares at $46.92 ($235K), marked as a 10b5-1 plan trade. Holdings down 17% to 24,922 shares. | SEC filing Filed Feb 18, 2026 |
| Jan 16, 2026 | Planned (10b5-1) | Mark N. Rogers (EVP & General Counsel) sold 5,000 shares at $49.28 ($246K), marked as a 10b5-1 plan trade. Holdings down 17% to 23,862 shares. | SEC filing Filed Jan 20, 2026 |
| Jan 15, 2026 | Planned (10b5-1) | Guillaume Marie Jean Rutten (Director) sold 10,000 shares at about $53.14 ($531K), marked as a 10b5-1 plan trade. Holdings down 3% to 335,391 shares. | SEC filing Filed Jan 20, 2026 |
| Dec 16, 2025 | Planned (10b5-1) | Mark N. Rogers (EVP & General Counsel) sold 20,000 shares at about $42.95 ($859K), marked as a 10b5-1 plan trade. Holdings down 46% to 23,862 shares. | SEC filing Filed Dec 17, 2025 |
| Dec 15, 2025 | Planned (10b5-1) | Guillaume Marie Jean Rutten (CEO and Director) sold 10,000 shares at about $44.80 ($448K), marked as a 10b5-1 plan trade. Holdings down 3% to 336,699 shares. | SEC filing Filed Dec 17, 2025 |
| Dec 12, 2025 | Sale | Kevin Engel (Executive Vice President) sold 11,000 shares at about $46.21 ($508K). Holdings down 97% to 349 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 16, 2025 |
| Dec 12, 2025 | Sale | Gil C. Tily (Director) sold 20,000 shares at about $46.44 ($929K). Holdings down 14% to 123,806 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 16, 2025 |
| Nov 17, 2025 | Planned (10b5-1) | Guillaume Marie Jean Rutten (CEO and Director) sold 10,000 shares at about $31.68 ($317K), marked as a 10b5-1 plan trade. Holdings down 3% to 346,699 shares. | SEC filing Filed Nov 19, 2025 |
| Nov 17, 2025 | Planned (10b5-1) | Mark N. Rogers (EVP & General Counsel) sold 20,000 shares at about $31.69 ($634K), marked as a 10b5-1 plan trade. Holdings down 46% to 23,862 shares. | SEC filing Filed Nov 19, 2025 |
126 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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