The selling by two larger holders outweighs small additions, consistent with the post-earnings disappointment. Monitor Q4 2026 results for Communications segment recovery; absence of insider buying reinforces caution.
Executive Summary
A small institutional cluster in AMKR shows mixed conviction: three small asset managers added positions totaling $288K in net buying, while two larger holders (Exchange Traded Concepts and Assenagon Asset Management) reduced holdings by $14.9M. The cluster follows Amkor's Q3 2026 earnings miss and weak Q4 guidance, suggesting the selling reflects disappointment with near-term revenue headwinds in Communications.
Key Financial Metrics
Institutional Positions
Net institutional flow: -$14.6M
▲ Buyers (3)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Proshare Advisors | ADD | +44.2% | $956.0K | -$136.0K |
| Td Waterhouse Canada | DOUBLED | +241.4% | $231.0K | $129.0K |
| Assetmark | ADD | +73.5% | $5.8M | $295.0K |
▼ Sellers (2)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Exchange Traded Concepts | NEAR_EXIT | -75.8% | $10.5M | -$9.0M |
| Assenagon Asset Management | TRIM | -27.4% | $10.7M | -$6.0M |
Key Facts
- 3 buyers added $288K net; 2 sellers reduced $14.9M net
- Exchange Traded Concepts near-exited 75.8% of its position ($9.0M sold)
- Assenagon Asset Management trimmed 27.4% ($6.0M sold)
- Q3 2026 revenue of $1.99B missed $2.04B consensus; Q4 guidance $1.9B-$2.0B implies sequential decline
- No open-market insider buying (confluence score 0/100)
Financial Impact
Net institutional selling of $14.6M (buyers added $288K, sellers removed $14.9M)
Risk Factors
- 13F data is 45+ days stale; positions may have been adjusted since quarter-end
- Small buyer positions ($7.0M aggregate) are dwarfed by seller exits ($14.9M)
- No insider buying to corroborate institutional accumulation
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 institutional 13F filing from SEC EDGAR.
| Document | Accession Number |
|---|---|
| INST-CLUSTER Data (Synthetic) | inst-cluster-AMKR-2026-Q3 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 29, 2026 3d ago | Institutional Cluster | $41.21 | awaiting T+5 | awaiting T+5 | No price |
Oct 26, 2026 6d ago | 8-K | $39.94 | awaiting T+5 | awaiting T+5 | No price |
Oct 13, 2026 19d ago | 144 | $44.82 $43.73 | ▼ −2.43% | ▼ −2.89% | No price |
Aug 19, 2026 10w ago | Insider Cluster | $50.86 $51.74 | ▲ +1.73% | ▲ +0.62% | No price |
Aug 13, 2026 11w ago | Insider Cluster | $58.99 $50.26 | ▼ −14.80% | ▼ −13.43% | No price |
Aug 11, 2026 11w ago | Insider Cluster | $55.59 $50.89 | ▼ −8.45% | ▼ −8.01% | No price |
Aug 7, 2026 12w ago | Insider Cluster | $52.87 $61.30 | ▲ +15.94% | ▲ +15.99% | No price |
Aug 2, 2026 13w ago | Institutional Cluster | $50.84 $52.87 | ▲ +3.99% | ▲ +1.97% | No price |
Jul 27, 2026 13w ago | 8-K | $45.69 $50.84 | ▲ +11.27% | ▲ +9.00% | No price |
Jul 22, 2026 14w ago | Institutional Cluster | $65.33 $48.26 | ▼ −26.13% | ▼ −26.60% | No price |
US Market Status
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