Total buying$00 buys
AMKR
AMKOR TECHNOLOGY, INC.
NasdaqTechnologySemiconductors & Related Devices
Insider activity for last month from 09/26 to 10/26.
How these metrics are calculated
Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total selling$321k2 sells
Net open-market−$321kBuying minus selling
Active insiders2Distinct reporting owners
Insider activity report
Calendar-month buckets within the selected date range
Latest filing: Oct 15, 2026
Open-market transaction mix · 2 transactions in the selected period
Code A includes awards, grants and other acquisitions; these are not open-market buys. A rolling period can include partial calendar months.
View exact monthly counts and disclosed values
| Month | Buys | Sells | Awards (A) | Buy value | Sell value | Net P/S value |
|---|---|---|---|---|---|---|
| Sep 2026 | 0 | 0 | 0 | $0 | $0 | $0 |
| Oct 2026 | 0 | 2 | 0 | $0 | $321k | -$321k |
Distinct insiders active
Reporting-owner CIKs by month · peak Oct 2026 (2)Sep 2026Oct 2026
Largest insider activity
By absolute net disclosed value · current transaction page- AA-$232.4k
- FM-$46.9k
AMKR transaction history
Newest filings · 20 transactions per pageLatest insider transactions
Form 4 filings from last month.| Company | Insider | Activity | Disclosed value | Filed (ET) |
|---|---|---|---|---|
AMKRAMKOR TECHNOLOGY, INC. | Faust MeganCFO | S · sale10b5-1 detectedSEC filing ↗ | -$46.9kView disclosure → | |
AMKRAMKOR TECHNOLOGY, INC. | Alexander Douglas ADIR | M · exercise10b5-1 detectedDerivative securitySEC filing ↗ | $0View disclosure → | |
AMKRAMKOR TECHNOLOGY, INC. | Alexander Douglas ADIR | S · sale10b5-1 detectedSEC filing ↗ | -$275kView disclosure → | |
AMKRAMKOR TECHNOLOGY, INC. | Alexander Douglas ADIR | M · exercise10b5-1 detectedSEC filing ↗ | $42.5kView disclosure → |
Filing-only signals
Deterministic matches in the selected period
Recent filing activity
Most recent 4 transactions on this page · color = transaction codeFiling detail checks
Secondary metrics for the selected periodTransaction codes
By Form 4 transaction code in selected period4transactionstxns
- M · Option exercise · dominant2 · 50%
- S · Open-market sells2 · 50%
Activity by reported role
A joint filing can contribute to multiple rolesDirector3
Chief financial officer1
Reported Holdings After
Separated by insider, security, and ownership type
Alexander Douglas ACommon Stock · Direct
29,109Oct 02, 2026
Alexander Douglas ADirector Stock Option (Right-to-Buy) · Direct
9,657Oct 02, 2026
Faust MeganCommon Stock · Direct
133,105Oct 13, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Current transaction page only · each cell is a filing date · buys green, sells redSep 26 → Oct 26
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AMKOR TECHNOLOGY, INC. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at AMKOR TECHNOLOGY, INC.?
Faust Megan, ALEXANDER DOUGLAS A.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Faust Megan reported a sale on Oct 13, 2026 valued at $46.9k. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $321,920.00. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.