Susan Y. Kim

Board Member · AMKOR TECHNOLOGY, INC.

Rank #192 SEC EDGAR (United States) ↗ Files from United States

Details

Member of the boardSemiconductors & Electronic ComponentsAMKRSEC CIK 0001158922

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Disclosed holdings
$900.0M
1-day change
▲ 1.77%
Positions on file
1
issuers disclosed in Forms 3/4/5 and Schedules 13D/G

Disclosed holdings over time 53 weekly points

What the 1 currently disclosed position would have been worth at each week’s closing price. A rising line means the shares got more valuable, not that this person bought more.

How the line is built

Share counts are as last reported to the SEC and held constant; only prices move.

2025-09-05$464.2M – $1.7B2026-09-04

Insider activity May 14, 2024 – Dec 26, 2025

Susan Y. Kim is recorded in filings to the U.S. SEC via EDGAR as member of the board, and reported 33 transactions between May 14, 2024 and Dec 26, 2025. The buy and sell totals below count only codes P, S.

Why the other codes are excluded

Share awards (A), shares withheld to pay tax (F), option exercises (M) and gifts (G) also appear in the table, but they are consequences of a pay package or a private transfer, not a decision to buy or sell on the open market. Counting them would turn this into a compensation ranking.

Open-market buys (code P)
$28.65M
2 purchases on file priced rows only
Open-market sales (code S)
None
0 sales on file
All reported transactions
33
every code, including awards and exercises
Pattern
Net buyer in the final 12 months of the window
last 12 months of the window

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

3 insiders bought AMKOR TECHNOLOGY, INC. (AMKR) shares worth $28,946,159 on Aug 1, 2025

Cluster buying

3 different insiders made 3 open-market purchases of this company’s shares within a short window. Each row below is one reported trade.

3 insiders bought AMKOR TECHNOLOGY, INC. (AMKR) shares worth $28,946,159 on Aug 1, 2025
Date Insider Transaction Shares Price Value Filing
Aug 1, 2025 Susan Y. Kim P Open-market purchase 441,589 held after: 3,789,479 $21.85 $9,648,720 SEC filing ↗
Aug 1, 2025 David D. Kim P Open-market purchase 441,589 held after: 3,789,479 $21.85 $9,648,720 SEC filing ↗
Aug 1, 2025 John T. Kim P Open-market purchase 441,589 held after: 3,789,479 $21.85 $9,648,720 SEC filing ↗

Total of the rows above: $28,946,159, in the currency the filings report.

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

3 insiders bought AMKOR TECHNOLOGY, INC. (AMKR) shares worth $56,999,986 on Feb 24, 2025

Cluster buying

3 different insiders made 3 open-market purchases of this company’s shares within a short window. Each row below is one reported trade.

3 insiders bought AMKOR TECHNOLOGY, INC. (AMKR) shares worth $56,999,986 on Feb 24, 2025
Date Insider Transaction Shares Price Value Filing
Feb 24, 2025 Susan Y. Kim P Open-market purchase 869,565 held after: 3,347,890 $21.85 $18,999,995 SEC filing ↗
Feb 24, 2025 David D. Kim P Open-market purchase 869,565 held after: 3,347,890 $21.85 $18,999,995 SEC filing ↗
Feb 24, 2025 John T. Kim P Open-market purchase 869,565 held after: 3,347,890 $21.85 $18,999,995 SEC filing ↗

Total of the rows above: $56,999,986, in the currency the filings report.

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Reported transactions

Price 0.00 is a real reported figure on gifts (G) and share awards (A) — not a missing number. The 25 most recent rows are grouped into 13 lines by date, company and transaction type — open a line to see every lot with its own source link. We hold 35 on file in total. See the full history on EDGAR ↗

How to read this list

Every row is one line of one Form 4 or Form 5, with the filing it came from. Where the record carries no price at all we leave the cell empty instead of guessing one.

The shares and money on a grouped line add up only the lots listed inside that line, and only when every one of them carries the figure. Where a group mixes more than one reporting currency we leave the money blank rather than convert — no source publishes the rate that conversion would need.

  1. AMKOR TECHNOLOGY, INC. AMKR A Grant or awardnot a buy/sell decisionreported at zero 9,893 shares $0 at $0.00 SEC filing ↗
  2. AMKOR TECHNOLOGY, INC. AMKR M Option exercise or conversionnot a buy/sell decision 20,000 shares $113.2K at $5.66 SEC filing ↗
  3. AMKOR TECHNOLOGY, INC. AMKR G Bona fide giftnot a buy/sell decisionreported at zero 725,000 shares $0 at $0.00 SEC filing ↗
  4. AMKOR TECHNOLOGY, INC. AMKR G Bona fide gift × 2not a buy/sell decisionreported at zero 5,782,594 shares $0
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    2,538,000 $0.00reported at zero $0 SEC filing ↗
    3,244,594 $0.00reported at zero $0 SEC filing ↗
  5. AMKOR TECHNOLOGY, INC. AMKR G Bona fide gift × 2not a buy/sell decisionreported at zero 1,516,000 shares $0
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    758,000 $0.00reported at zero $0 SEC filing ↗
    758,000 $0.00reported at zero $0 SEC filing ↗
  6. AMKOR TECHNOLOGY, INC. AMKR G Bona fide gift × 4not a buy/sell decisionreported at zero 3,422,000 shares $0
    The 4 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    876,000 $0.00reported at zero $0 SEC filing ↗
    705,000 $0.00reported at zero $0 SEC filing ↗
    965,000 $0.00reported at zero $0 SEC filing ↗
    876,000 $0.00reported at zero $0 SEC filing ↗
  7. AMKOR TECHNOLOGY, INC. AMKR A Grant or awardnot a buy/sell decisionreported at zero 965,000 shares $0 at $0.00 SEC filing ↗
  8. AMKOR TECHNOLOGY, INC. AMKR G Bona fide gift × 6not a buy/sell decisionreported at zero 2,154,007 shares $0
    The 6 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    280,000 $0.00reported at zero $0 SEC filing ↗
    280,001 $0.00reported at zero $0 SEC filing ↗
    438,002 $0.00reported at zero $0 SEC filing ↗
    438,002 $0.00reported at zero $0 SEC filing ↗
    280,000 $0.00reported at zero $0 SEC filing ↗
    438,002 $0.00reported at zero $0 SEC filing ↗
  9. AMKOR TECHNOLOGY, INC. AMKR P Open-market purchase 441,589 shares $9.65M at $21.85 SEC filing ↗
  10. AMKOR TECHNOLOGY, INC. AMKR G Bona fide gift × 2not a buy/sell decisionreported at zero 4,449,000 shares $0
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    1,738,000 $0.00reported at zero $0 SEC filing ↗
    2,711,000 $0.00reported at zero $0 SEC filing ↗
  11. AMKOR TECHNOLOGY, INC. AMKR M Option exercise or conversionnot a buy/sell decisionreported at zero 6,017 shares $0 at $0.00 SEC filing ↗
  12. AMKOR TECHNOLOGY, INC. AMKR P Open-market purchase 869,565 shares $19.00M at $21.85 SEC filing ↗
  13. AMKOR TECHNOLOGY, INC. AMKR G Bona fide gift × 2not a buy/sell decisionreported at zero 822,000 shares $0
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    548,000 $0.00reported at zero $0 SEC filing ↗
    274,000 $0.00reported at zero $0 SEC filing ↗

Disclosed holdings

Shares is the amount on the form; value is that amount times the closing price shown. Rows with no closing price are left blank, so they may add up to less than the headline figure.

What is not counted here

Each row is one filing you can open. Private companies, real estate, bonds and crypto are not in SEC insider filings and are therefore not counted here.

Equity positions disclosed to the SEC, with the source filing behind each row.
Issuer Ticker Security Shares Close Value Form Reported Filing
AMKOR TECHNOLOGY, INC. AMKR Common Stock (indirect) 18,840,698 $47.77 $900.0M 4 EDGAR ↗

Other insiders at the same companies

People who also file with the SEC at a company where Susan Y. Kim reports shares.

Sharing a filing does not mean they work together day to day — it means both names appear on the same issuer’s insider record.

Sources

The filings linked in the tables above are the sources for every figure on this page.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Profile record last refreshed Sep 8, 2026.