Huang Jack Jiajia
Chief Executive Officer
All tracked transactions
Curated subset of Huang Jack Jiajia's SEC Form 4 filings. Routine 10b5-1 schedule sales are flagged inline and weighted less in the conviction score.
| Date | Ticker | Action | Value |
|---|---|---|---|
| Apr 23, 2026 | COE | buy | $1.90M 73,740 × $25.71 |
| Apr 23, 2026 | COE | buy | $1.90M 73,740 × $25.71 |
| Apr 22, 2026 | COE | buy | $287K 12,000 × $23.9 |
| Apr 22, 2026 | COE | buy | $287K 12,000 × $23.9 |
| Apr 21, 2026 | COE | buy | $955K 39,180 × $24.37 |
| Apr 21, 2026 | COE | buy | $955K 39,180 × $24.37 |
| Apr 20, 2026 | COE | buy | $507K 21,480 × $23.59 |
| Apr 20, 2026 | COE | buy | $507K 21,480 × $23.59 |
| Apr 17, 2026 | COE | buy | $614K 24,060 × $25.51 |
| Apr 17, 2026 | COE | buy | $614K 24,060 × $25.51 |
| Apr 16, 2026 | COE | buy | $1.56M 60,420 × $25.79 |
| Apr 16, 2026 | COE | buy | $1.56M 60,420 × $25.79 |
| Apr 15, 2026 | COE | buy | $4.28M 166,560 × $25.69 |
| Apr 15, 2026 | COE | buy | $4.28M 166,560 × $25.69 |
| Apr 14, 2026 | COE | buy | $1.49M 61,200 × $24.36 |
| Apr 14, 2026 | COE | buy | $1.49M 61,200 × $24.36 |
| Apr 13, 2026 | COE | buy | $1.62M 72,720 × $22.22 |
| Apr 13, 2026 | COE | buy | $1.62M 72,720 × $22.22 |
Method
Conviction score = logistic(role_weight × (buy_value − 0.2 × discretionary_sell_value)) mapped to −100..+100. CEOs and founders carry role_weight 0.95-1.0; directors 0.5; former executives 0.3. Routine 10b5-1 schedule sales are weighted down sharply — insiders file pre-arranged selling plans that trigger independent of their view of the stock, so they carry minimal signal. Open-market discretionary buys are rare and carry the heaviest weight.
Role weight: 0.40 (Chief Executive Officer).
Data sourced from SEC Form 4 filings via EDGAR. Curated subset (not every filing) — we prioritize CEO/CFO/Chair/10%-owner transactions and material $ amounts over noise.
Tickers Huang has traded
SEC Form 4 filings disclose trades by corporate insiders within 2 business days. Conviction scoring is a synthesis — not investment advice.