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AMKR · Amkor Technology, Inc.
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AMKR Amkor Technology (AMKR) Insider Trading, Ownership & Congress Trades

Semiconductors & Electronics · Semiconductors & related devices · CIK 0001047127
Quote by TradingView
Form 144 · 9
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
389
13F, latest reported quarter
Conversions, 180 days
22
Codes C/M, not in net · $9.3M priced

What the filings say about AMKR

Insiders, 180 days
-$12.9M net sold
8 sellers · 14% of sales under a 10b5-1 plan
Planned sales (Form 144), 90 days
$3.9M
9 notices

Amkor Technology insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, AMKOR TECHNOLOGY, INC. insiders sold a net $12.9M of stock across 169 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-28.

Insider
Filed
Shares
Value
Since filing
Faust Megan
CFO
SELL
2026-10-15 SECtraded 2026-10-13
1,000
$46.9K
-4.5%
Context
  • 37 earlier Form 4 trades (code P or S) here by this insider (37 sales), the last on Sep 8, 2026.
  • The trade is 0.8% of the 133,105 shares held after it.
  • 1 other insider sold within 30 days.
  • 389 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: CFO Faust Megan sold about $46.9K of AMKR under a 10b5-1 plan on Oct 13, 2026; 1 other insider sold within 30 days and 389 funds added in the latest 13F quarter.
ALEXANDER DOUGLAS A
Director
SELL
2026-10-06 SECtraded 2026-10-02
5,000
$275.0K
-23.6%
Context
  • 3 earlier Form 4 trades (code P or S) here by this insider (3 sales), the last on Aug 7, 2026.
  • The trade is 17.2% of the 29,109 shares held after it.
  • 1 other insider sold within 30 days.
  • 389 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director ALEXANDER DOUGLAS A sold about $275.0K of AMKR under a 10b5-1 plan on Oct 2, 2026; 1 other insider sold within 30 days and 389 funds added in the latest 13F quarter.
Faust Megan
CFO
SELL
2026-09-10 SECtraded 2026-09-08
1,000
$49.0K
-22.8%
Context
  • 36 earlier Form 4 trades (code P or S) here by this insider (36 sales), the last on Aug 11, 2026.
  • The trade is 0.7% of the 134,105 shares held after it.
  • 2 other insiders sold within 30 days.
  • 389 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: CFO Faust Megan sold about $49.0K of AMKR under a 10b5-1 plan on Sep 8, 2026; 2 other insiders sold within 30 days and 389 funds added in the latest 13F quarter.
ROGERS MARK N
EVP & General Counsel
SELL
2026-08-19 SECtraded 2026-08-17
5,000
$298.9K
-21.3%
Context
  • 12 earlier Form 4 trades (code P or S) here by this insider (12 sales), the last on Jul 16, 2026.
  • The trade is 12.9% of the 38,904 shares held after it.
  • 4 other insiders sold within 30 days.
  • 389 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: EVP & General Counsel ROGERS MARK N sold about $298.9K of AMKR on Aug 17, 2026; 4 other insiders sold within 30 days and 389 funds added in the latest 13F quarter.
Faust Megan
CFO
SELL
2026-08-13 SECtraded 2026-08-11
1,000
$54.5K
-32.2%
Context
  • 35 earlier Form 4 trades (code P or S) here by this insider (35 sales), the last on Jul 14, 2026.
  • The trade is 0.7% of the 135,105 shares held after it.
  • 4 other insiders sold within 30 days.
  • 389 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: CFO Faust Megan sold about $54.5K of AMKR on Aug 11, 2026; 4 other insiders sold within 30 days and 389 funds added in the latest 13F quarter.
169 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
See all insider buying · insider selling
Showing the latest few. to see 164 more transactions and use the screener and CSV export. We store only your email; there is no password.
Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$12.9M over 180 days
-$3.9M over 90 days
below 66% of Semiconductors & Electronics
Congress
no House purchase disclosed in the last 12 months
Funds
389 funds bought in last quarter
more than 82% of Semiconductors & Electronics
Revenue
+6.2% year over year
below 56% of Semiconductors & Electronics
Margin
5.6% net margin
more than 65% of Semiconductors & Electronics
Buybacks
no share repurchases reported
Short interest
9.8% of the float short (float per yahoo 2026-10-26) · 3.1 days to cover · settled 2026-09-30
below 53% of Semiconductors & Electronics
What changed in the last 30 days
Oct 15CFO Faust Megan sold $46.9K under a 10b5-1 plan (Oct 13)
Why it matters
A 10b5-1 plan schedules trades months ahead, so this says little about what the insider thinks today.
Oct 13Officer MEGAN FAUST filed to sell $46.9K by Oct 13 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.
Oct 6Director ALEXANDER DOUGLAS A sold $275.0K under a 10b5-1 plan (Oct 2)
Why it matters
A 10b5-1 plan schedules trades months ahead, so this says little about what the insider thinks today.
Oct 2Director DOUGLAS A ALEXANDER filed to sell $275.0K by Oct 2 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.

Watch AMKR

A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.

The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+25.5%12M
-6%+61%+127%+194%2025-102025-122026-022026-042026-062026-082026-10 2026-02-12 · KIM JOHN T sold $484.9M2026-02-12 · 915 Investments, LP sold $484.9M2026-05-08 · Rutten Guillaume Marie Jean sold $3.7M2026-05-05 · Carolin Roger Anthony sold $1.5M2026-08-05 · Rutten Guillaume Marie Jean sold $1.4M2026-08-06 · Rutten Guillaume Marie Jean sold $1.4M2026-05-11 · Tily Gil C. sold $1.2M2026-02-24 · Rutten Guillaume Marie Jean sold $976.0K2025-12-12 · Tily Gil C. sold $928.8K2025-12-12 · McCourt MaryFrances sold $920.4K2025-12-16 · ROGERS MARK N sold $859.0K2026-02-25 · Haghighi Farshad sold $789.0K2025-11-17 · ROGERS MARK N sold $633.8K2026-02-24 · Engel Kevin K. sold $609.4K2026-05-05 · CHURCHILL WINSTON J sold $535.1K2026-01-15 · Rutten Guillaume Marie Jean sold $531.4K2025-12-12 · Engel Kevin sold $508.3K2026-02-17 · Rutten Guillaume Marie Jean sold $458.9K2025-12-15 · Rutten Guillaume Marie Jean sold $448.0K2026-06-16 · ROGERS MARK N sold $431.0K2026-06-12 · CHURCHILL WINSTON J sold $391.0K2026-05-18 · ROGERS MARK N sold $358.1K2026-05-05 · ALEXANDER DOUGLAS A sold $356.6K2026-07-16 · ROGERS MARK N sold $325.6K2025-11-17 · Rutten Guillaume Marie Jean sold $316.8K2026-08-17 · ROGERS MARK N sold $298.9K2026-04-16 · ROGERS MARK N sold $297.1K2026-08-07 · ALEXANDER DOUGLAS A sold $279.1K2026-10-02 · ALEXANDER DOUGLAS A sold $275.0K2026-01-16 · ROGERS MARK N sold $246.4K2026-02-17 · Engel Kevin K. sold $244.7K2026-02-17 · ROGERS MARK N sold $234.6K2026-03-16 · ROGERS MARK N sold $222.7K2025-12-15 · CHURCHILL WINSTON J sold $221.4K2026-07-30 · Engel Kevin K. sold $151.4K2026-06-09 · Faust Megan sold $70.3K2026-07-14 · Faust Megan sold $69.9K2026-05-19 · Faust Megan sold $64.6K2026-08-11 · Faust Megan sold $54.5K2026-09-08 · Faust Megan sold $49.0K2026-10-13 · Faust Megan sold $46.9K2026-05-05 · ALEXANDER DOUGLAS A sold $26.3K2026-10-13 · MEGAN FAUST filed to sell $46.9K2026-10-02 · DOUGLAS A ALEXANDER filed to sell $275.0K2026-09-08 · MEGAN FAUST filed to sell $49.0K2026-08-17 · MARK N ROGERS filed to sell $298.9K2026-08-11 · MEGAN FAUST filed to sell $54.5K2026-08-07 · DOUGLAS A ALEXANDER filed to sell $279.1K2026-08-06 · GUILLAUME RUTTEN filed to sell $1.4M2026-08-05 · GUILLAUME RUTTEN filed to sell $1.4M2026-07-30 · KEVIN K ENGEL filed to sell $151.4K2026-07-16 · MARK N ROGERS filed to sell $325.6K2026-07-14 · MEGAN FAUST filed to sell $69.9K
Insider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns AMKR: institutional holders (13F)

13F holdings, latest reported quarter
BlackRock, Inc.
12,292,760 sh
$1.1B
VANGUARD PORTFOLIO MANAGEMENT LLC
9,712,553 sh
$837.5M
DIMENSIONAL FUND ADVISORS LP
8,064,191 sh
$695.3M
VANGUARD CAPITAL MANAGEMENT LLC
6,701,080 sh
$577.8M
JPMORGAN CHASE & CO
5,702,608 sh
$470.0M

Congress trades in AMKR

No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

AMKR planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
MEGAN FAUST
Filed 2026-10-13
$46.9K
DOUGLAS A ALEXANDER
Filed 2026-10-02
$275.0K
MEGAN FAUST
Filed 2026-09-08
$49.0K
MARK N ROGERS
Filed 2026-08-17
$298.9K
MEGAN FAUST
Filed 2026-08-11
$54.5K

AMKR mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
Tuttle Capital Concentrated Memory Stack ETF
$1.1M position · as of 2026-07-31
4.1%
First Trust Nasdaq Semiconductor ETF
$92.2M position · as of 2026-06-30
3.4%
Small-MidCap Dividend Income Fund
$48.5M position · as of 2026-05-31
3.2%
Berkshire Focus Fund
$14.0M position · as of 2026-06-30
3.0%
Adaptiv Select ETF
$4.7M position · as of 2026-07-31
2.6%
Value Line Select Core Fund
$7.2M position · as of 2026-06-30
2.5%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Executive pay vs shareholder return · Mr. Rutten
CEO pay, headline and as actually paid, against the company's return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2025
$12.1M
$22.7M
$3.3M
+180%
+168%
2024
$16.6M
$14.2M
$2.7M
+80%
+87%
2023
$12.8M
$9.7M
$2.2M
+127%
+55%
2022
$3.6M
$2.4M
$1.7M
+62%
-7%
2021
$3.8M
$9.8M
$1.6M
+66%
+43%
Tagged by the company under SEC Item 402(v). Returns are cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders have filed to sell, before selling.
The record shows a net $12.9M sold by insiders over 180 days, 389 funds added last quarter, $3.9M in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
Backtest this pattern Open the screener
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Sector by SEC SIC code
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AMKR financials

Revenue growth
+6.2%
XBRL, annual
Net margin
5.6%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$7.1B
four quarters, 2025-04-01 to 2026-03-31
Net margin, TTM
+6.2%
net income over revenue, 2025-04-01 to 2026-03-31
Free cash flow, TTM
$167.2M
operating cash flow minus capex, 2025-04-01 to 2026-03-31
Debt to equity
0.31x
long-term 2026-03-31 plus current 2026-03-31; equity 2026-03-31
Cash flow to debt
0.86x
TTM operating cash flow over long-term 2026-03-31 plus current 2026-03-31
Return on equity
+10.0%
TTM net income over average of 2025-03-31 and 2026-03-31
Return on assets
+5.7%
TTM net income over average of 2025-03-31 and 2026-03-31
Return on invested capital
+9.8%
operating income after a 14.9% effective tax rate, over long-term 2026-03-31 plus current 2026-03-31 plus average of 2025-03-31 and 2026-03-31 minus cash
Return on capital employed
+9.0%
operating income (EBIT proxy) over average of 2025-03-31 and 2026-03-31 minus current liabilities
P/E, trailing
22.82x
close 2026-10-27 over four quarters of diluted EPS, 2025-04-01 to 2026-03-31
Enterprise value
$10.2B
market value at close 2026-10-27 on 2026-04-21 shares, plus long-term 2026-03-31 plus current 2026-03-31, minus cash 2026-03-31
FCF yield
+1.7%
TTM free cash flow over market value at close 2026-10-27
PEG, trailing
0.62x
P/E over trailing EPS growth of 37%: four quarters to 2026-03-31 against the four to 2025-03-31
Price as of 2026-10-27. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2025-122024-122023-122022-12
Revenue$6.7B$6.3B$6.5B$7.1B
Gross profit$938.6M$933.2M$943.2M$1.3B
Operating income$467.4M$438.5M$470.3M$897.2M
Net income$373.9M$354.0M$359.8M$765.8M
EPS (diluted)1.501.431.463.11
Operating cash flow$1.1B$1.1B$1.3B$1.1B
Cash$1.4B$1.1B$1.1B$959.1M
Long-term debt$1.3B$923.4M$1.1B$1.1B
Dividends paid$81.9M$178.6M$74.7M$55.1M
SEC XBRL, fiscal years, as known on 2026-10-28

AMKR Stock Sonar score 6/7 axes

Find similar shapesCompare

AMKR ranks highest on financial health (63rd percentile) and profitability (58th), and lowest on insider conviction (17th), among Semiconductors & Electronics peers.

ProfitHealthGrowthInsidersInstitutionsRisk
Profitability
58
Inputs
  • Return on equity+10.0% · 61 pct, sector of 154
  • Return on assets+5.7% · 67 pct, sector of 171
  • Return on invested capital+9.8% · 36 pct, sector of 56
  • Return on capital employed+9.0% · 68 pct, sector of 155
Financial health
63
Inputs
  • Debt to equity0.31x · 45 pct, sector of 152
  • Cash flow to debt0.86x · 80 pct, sector of 136
Growth
44
Inputs
  • Revenue growth, YoY+6.2% · 44 pct, sector of 194
  • Backlog growth, YoYno backlog line filed, or no year-earlier backlog
Insider conviction
17
Inputs
  • Net Form 4 buying (codes P and S), 180d-$12.6M · 34 pct, sector of 147
  • Insider buyers, 180d0 · 0 pct, sector of 151
Institutional and government
50
Inputs
  • Funds adding, latest quarter389 · 82 pct, sector of 184
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quarters$90K · 17 pct, sector of 53
Risk and compliance
49
Inputs
  • Short interest, % of float+9.8% · 31 pct, sector of 221
  • Recalls per $1B revenue, 3ynot measured for this sector, almost no peer has an event
  • EPA cases per $1B revenue, 5ynot measured for this sector, almost no peer has an event
  • New text in Risk Factors, latest 10-K+8.7% · 68 pct, sector of 152
1 not measured: US patents
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

6 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

AMKR filings, in plain words

Are Amkor Technology insiders buying or selling AMKR?

In the 180 days to 2026-10-28, Amkor Technology insiders were net sellers, a net $12.9M across purchases and sales reported on Form 4, by 8 sellers.

Are there planned insider sales of AMKR?

Yes. 9 Form 144 notices of planned insider sales were filed in the 90 days to 2026-10-28, covering $3.9M of stock; the latest, by MEGAN FAUST, was filed 2026-10-13.

Read the full summary

In the 180 days to 2026-10-28, Amkor Technology insiders were net sellers of AMKR, a net $12.9M across purchases and sales reported on Form 4 by 8 sellers. 14% of the 22 insider sales were made under a Rule 10b5-1 plan; the rest were not flagged as planned. Insiders filed 9 Form 144 notices of intent to sell in the 90 days to 2026-10-28, covering $3.9M of stock. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.

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