While the dollar amount is too small to move the stock mechanically, the breadth of C-suite selling (CEO, CTO, President Asia, SVP Sales, SVP Products) is unusual and may signal a lack of conviction ahead of the next earnings report. Monitor for any guidance changes or operational headwinds in the semiconductor cycle. The cluster's small size relative to market cap limits downside risk, but the pattern warrants watching for escalation.
Price Chart
Executive Summary
Four senior insiders at Diodes (CEO, CTO, SVP Sales, SVP Products, President Asia) sold a total of $1.23M in open-market shares over two days, May 26-27. The cluster includes the CEO ($400K), CTO ($447K), and President Asia ($394K), with no open-market purchases. At 0.025% of market cap, the dollar value is trivial relative to the $5.0B company, but the breadth of C-suite selling warrants attention.
Key Financial Metrics
Key Facts
- 4 insiders sold $1.23M in open-market transactions on May 26-27, 2026
- CEO Yu Gary sold $400K; CTO Tang Francis sold $447K; President Asia Zhao Jin sold $394K; SVP Sales Yang Emily sold $215K; SVP Products Tsong Andy sold $169K
- No open-market purchases in the cluster; two tax-withholding transactions ($277K) are non-cash
- Total open-market sales represent ~0.025% of Diodes' $5.0B market cap
- Recent 30-day insider activity shows 8 sells totaling $2.7M, consistent with this cluster
Financial Impact
Insider selling of $1.23M, or 0.025% of market cap — immaterial in absolute terms
Risk Factors
- Insider selling may indicate management's view that the stock is fairly valued or overvalued at ~$110
- Semiconductor cycle headwinds (inventory correction, demand softness) could pressure margins
- No insider buying to offset the selling signal
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-DIOD-1779983254796 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 18, 2026 6w ago | 8-K | $94.32 $90.27 | ▼ −4.29% | ▼ −2.78% | $103.84 (+10.09%) |
Aug 15, 2026 6w ago | Institutional Cluster | $107.56 $90.27 | ▼ −16.07% | ▼ −14.10% | $103.84 (−3.46%) |
Jul 28, 2026 9w ago | 8-K | $76.09 $90.54 | ▲ +18.99% | ▲ +13.97% | $103.84 (+36.47%) |
Jul 14, 2026 11w ago | 8-K | $95.13 $103.15 | ▲ +8.43% | ▲ +5.94% | $103.84 (+9.16%) |
Jun 1, 2026 17w ago | Insider Cluster | $101.96 $109.44 | ▲ +7.34% | ▲ +8.63% | $103.84 (+1.84%) |
May 27, 2026 18w ago | Insider Cluster | $109.89 $104.14 | ▲ +5.23% | ▲ +2.09% | $103.84 (+5.51%) |
May 27, 2026 18w ago | Insider Cluster | $109.89 $104.14 | ▼ −5.23% | ▼ −2.09% | $103.84 (−5.51%) |
May 21, 2026 19w ago | Insider Cluster | $96.30 $123.38 | ▲ +28.12% | ▲ +27.79% | $103.84 (+7.83%) |
May 19, 2026 19w ago | Insider Cluster | $93.75 $108.80 | ▼ −16.05% | ▼ −15.07% | $103.84 (−10.76%) |
May 12, 2026 20w ago | 8-K | $101.96 $106.84 | ▲ +4.79% | ▲ +5.40% | $103.84 (+1.84%) |
US Market Status
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