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Corporate insider · Form 4

Huang Jack Jiajia

Chief Executive Officer

Conviction score
+48
Buy signal
Buys
$26.40M
18 transactions
Sells
$0
0 transactions

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.

DateTickerActionValue
Apr 23, 2026COEbuy
$1.90M
73,740 × $25.71
Apr 23, 2026COEbuy
$1.90M
73,740 × $25.71
Apr 22, 2026COEbuy
$287K
12,000 × $23.9
Apr 22, 2026COEbuy
$287K
12,000 × $23.9
Apr 21, 2026COEbuy
$955K
39,180 × $24.37
Apr 21, 2026COEbuy
$955K
39,180 × $24.37
Apr 20, 2026COEbuy
$507K
21,480 × $23.59
Apr 20, 2026COEbuy
$507K
21,480 × $23.59
Apr 17, 2026COEbuy
$614K
24,060 × $25.51
Apr 17, 2026COEbuy
$614K
24,060 × $25.51
Apr 16, 2026COEbuy
$1.56M
60,420 × $25.79
Apr 16, 2026COEbuy
$1.56M
60,420 × $25.79
Apr 15, 2026COEbuy
$4.28M
166,560 × $25.69
Apr 15, 2026COEbuy
$4.28M
166,560 × $25.69
Apr 14, 2026COEbuy
$1.49M
61,200 × $24.36
Apr 14, 2026COEbuy
$1.49M
61,200 × $24.36
Apr 13, 2026COEbuy
$1.62M
72,720 × $22.22
Apr 13, 2026COEbuy
$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

COE

SEC Form 4 filings disclose trades by corporate insiders within 2 business days. Conviction scoring is a synthesis — not investment advice.