Cross-institution positioning
Apr 9, 2026Strong institutional reduction. 3 exited across 3 comparable institutions.
Source: Schedule 13 researchAMKR Institutional Ownership
AMKOR TECHNOLOGY, INC.
Latest stored close $51.00 as of Oct 8, 2026 View live quote ↗
STOCKNODE Outlook
Sell
19/100
3 tracked · 3 comparable
Latest filing
Apr 9, 2026
Positive breadth
0 positive · 3 negative
Recent close
$51.00
Research confidence
Medium
Institutional Research 4/100 · 0 accumulating · 3 reducing / exited
Ownership history
Reported ownership % history
Latest filing Apr 9, 2026
See how each tracked institution's reported ownership changed across SEC position dates. Full history is available with Investor or Pro access.
Locked preview
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Accumulating0
Newly reported0
Reducing / exited
3
52-week position
—
Institutional Intelligence
Why STOCKNODE says Sell
What the evidence shows across the newest institutional, insider, company-event, 13F, fundamental, and price data; STOCKNODE combines these layers into a quantitative research signal while preserving each source and reporting window.
STOCKNODE Outlook
Sell 19/100
Confidence:Medium
Why this signal
- 0 tracked institutions accumulating versus 3 reducing/exited.
Institutional
16/100
Insiders
22/100
Events
50/100
Quarterly 13F activity
Jun 30, 20261 increased/new, 1 reduced/exited across 2 managers in the latest comparable Form 13F quarter.
Source: Form 13F quarter-end holdingsInsider filing activity
Oct 2, 2026Over the last 90 days, SEC-coded non-derivative P/S activity includes 0 purchases by 0 reporting owners and 10 sales by 5 reporting owners. Amendments are shown in the filing evidence but excluded from rolling activity totals.
Source: SEC Forms 3/4/5Material company events
Jul 27, 20261 non-amendment material event in the last 90 days; Latest classified evidence: Results of operations / financial condition. Registration and prospectus filings are treated as financing capacity/disclosure evidence, not proof that securities were sold.
Source: SEC 8-K / securities filing metadataPrice context
Sep 15, 2026Recent close is 29% through its reported 52-week range; +80.6% over one year.
Source: Stored historical price series
Latest filing decision brief
Investor / Pro
Research the latest Schedule 13G amendment from Dimensional Fund Advisors.
Filed Apr 9, 2026. Unlock the dated position comparison, disclosure classification, confidence, price context, and filing-specific significance analysis.
Premium research values are withheld until unlocked.
Supporting institutional evidence
Institutional Evidence
The research summary above gives the current read. This section shows the dated holder-level evidence behind it.
Latest filing
Apr 9, 2026
Latest reported position changes
Investor / Pro detailSee each institution's newest reported position against its own prior report, with position as-of date separated from SEC filed date. Institution names and filing freshness remain public below.
Dimensional Fund Advisors
Filed Apr 9, 2026
Direction locked
Vanguard Group
Filed Mar 26, 2026
Direction locked
BlackRock
Filed Jul 8, 2024
Direction locked
Unlock the actual direction, share change, ownership change, and classification basis.
No premium position values are sent in this locked preview.
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Reported direction breadth by as-of date
Locked previewComparable holder direction grouped by SEC position as-of date — never presented as trade dates.
Unlock actual accumulation vs. reduction breadth across reported position dates.
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Institution comparison
Investor / Pro detailCompare each institution only with its own prior reported position. Public visitors can see who is tracked and how fresh the filing is; paid research reveals the actual comparison.
Dimensional Fund Advisors
Filed Apr 9, 2026
Vanguard Group
Filed Mar 26, 2026
BlackRock
Filed Jul 8, 2024
Unlock the evidence behind the score
Know who changed position, by how much, and when the SEC learned about it.
Investor and Pro reveal holder-by-holder changes, reported ownership history, dated breadth, disclosure timing, institution comparison, and filing-specific analysis without treating Schedule 13 reports as trade dates.
✓ Actual share and ownership changes
✓ Position as-of date vs. SEC filed date
✓ Deterministic direction basis
✓ Full evidence on every eligible stock
SEC Forms 3, 4 & 5
Insider activity
Reported Section 16 ownership activity. Rolling purchase/sale totals use non-derivative SEC transaction codes P and S only; amendments remain visible but are excluded from those totals.
30-day purchases00 reporting owner(s)
30-day sales22 reporting owner(s)
90-day purchase breadth0
90-day sale breadth5Multi-insider
View recent insider filing evidence
| Date | Reporting owner | Code | Security | Shares | Price | Ownership | Filed |
|---|---|---|---|---|---|---|---|
| Oct 2, 2026 | ALEXANDER DOUGLAS A | MExercise or conversion of derivative · derivative | Director Stock Option (Right-to-Buy) | 5.0K | $0.00 | Direct | Oct 6, 2026 |
| Oct 2, 2026 | ALEXANDER DOUGLAS A | SOpen-market or private sale | Common Stock | 5.0K | $55.00 | Direct | Oct 6, 2026 |
| Oct 2, 2026 | ALEXANDER DOUGLAS A | MExercise or conversion of derivative | Common Stock | 5.0K | $8.51 | Direct | Oct 6, 2026 |
| Sep 22, 2026 | ALEXANDER DOUGLAS A | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 4 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | ALEXANDER DOUGLAS A | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 15 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | ALEXANDER DOUGLAS A | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 13 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | ALEXANDER DOUGLAS A | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 13 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | Carolin Roger Anthony | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 4 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | Carolin Roger Anthony | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 15 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | Carolin Roger Anthony | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 13 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | CHURCHILL WINSTON J | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 4 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | Liao Daniel JL | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 4 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | Liao Daniel JL | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 15 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | McCourt MaryFrances | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 4 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | McCourt MaryFrances | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 13 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | Morse Robert Randolph | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 4 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | Morse Robert Randolph | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 15 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | Morse Robert Randolph | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 13 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | Rutten Guillaume Marie Jean | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 4 | $0.00 | Direct | Sep 24, 2026 |
| Sep 22, 2026 | Tily Gil C. | AGrant, award, or other acquisition · derivative | Restricted Stock Units | 4 | $0.00 | Direct | Sep 24, 2026 |
SEC company-event context
Material company events
Recent 8-K item classifications plus securities registration and prospectus filings. Registration or prospectus filings show financing capacity/disclosure activity; they do not by themselves prove that securities were sold.
30-day material events0
90-day capital-related0
90-day equity-related0
90-day debt-related0
View recent company-event filing evidence
| Filed | Form | 8-K item(s) | Classification | Capital context | SEC |
|---|---|---|---|---|---|
| Jul 27, 2026 | 8-K | 2.02, 9.01 | Results of operations / financial condition; Financial statements / exhibits | — | Filing |
| May 21, 2026 | 8-K | 7.01, 9.01 | Regulation FD disclosure; Financial statements / exhibits | — | Filing |
| May 19, 2026 | 8-K | 5.07 | Shareholder vote results | — | Filing |
| May 5, 2026 | 8-K | 1.01, 2.03, 3.02, 9.01 | Material definitive agreement; New direct financial obligation; Unregistered sale of equity securities; Financial statements / exhibits | Equity | Filing |
| May 1, 2026 | 8-K | 8.01, 9.01 | Other event; Financial statements / exhibits | — | Filing |
| Apr 30, 2026 | 8-K | 8.01, 9.01 | Other event; Financial statements / exhibits | — | Filing |
| Apr 27, 2026 | 8-K | 2.02, 9.01 | Results of operations / financial condition; Financial statements / exhibits | — | Filing |
Current market context
Price performance
Dated price context from the historical market series already collected for this security.
Recent stored close
$46.38
View live quote ↗
52-week low
$26.16
Sep 17, 2025
52-week high
$96.68
Jun 16, 2026
Below 52-week high
52.0%
1W return
-8.6%
1M return
-21.4%
3M return
-45.7%
6M return
+7.9%
YTD return
+17.5%
1Y return
+80.6%
30-day volatility
76.1%
90-day volatility
95.4%
1Y max drawdown
-54.3%
Returns are close-to-close price changes. Volatility and drawdown are factual historical context, not recommendations.
How to read Schedule 13 ownership changes
Schedule 13G/13D reports beneficial ownership at an observation date. “Accumulation” or “reduction” is inferred from changes in reported shares when available; it is not a list of individual trades or exact execution prices.
Form 13F rows are quarter-end holding context only and do not establish an exact entry date.
For more context, see how to read a Schedule 13G, filing date vs event date, or Schedule 13G vs Schedule 13D.
Current ownership filings and reported ownership changes are available on free access. Investor and Pro add filing-specific significance scoring, disclosure-speed analysis, confirmation/divergence signals, and alerts. The overall institutional consensus preview remains public. Compare plans.
Beneficial ownership filing history
Showing 3 of 13 filing(s) · 10 older require more history accessView beneficial ownership filing evidence
| Holder | Observed / filed | Reported change | Shares | Ownership | Observation | Filing | Latest |
|---|---|---|---|---|---|---|---|
| Dimensional Fund Advisors CIK0000354204 | Mar 31, 2026 observed Apr 9, 2026 filed · 9d Schedule 13G amendment | Exit below reporting threshold | 11.0M -3.9M | 4.40% -1.60 pts | $45.03 | $55.14 | $51.00 |
| Vanguard Group CIK0000102909 | Mar 13, 2026 observed Mar 26, 2026 filed · 13d Schedule 13G amendment | Exit below reporting threshold | 0 -14.8M | 0.00% -6.00 pts | $42.99 | $45.14 | $51.00 |
| BlackRock CIK0001364742 | Jun 30, 2024 observed Jul 8, 2024 filed · 8d Schedule 13G amendment | Exit below reporting threshold | 12.1M -2.8M | 4.90% -1.20 pts | $40.02 | $40.75 | $51.00 |
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