Ming Yan
CIK 1874041 · CHIEF TECHNOLOGY OFFICER · last filed 2026-05-20
Ming Yan is a CHIEF TECHNOLOGY OFFICER who has filed 50 SEC Form 4 insider transactions across 1 company since 2021. The most recent filing, for CTKB, was dated May 20, 2026. Across all open-market trades the lifetime net is −$5.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $19.5M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$19.50M
1
50
-$5.38M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CTKB | CHIEF TECHNOLOGY OFFICER | 4,925,464 | $3.96 | $19.50M | -$5.38M | 50 | 2026-05-20 |
Recent Filings
50 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-20 | CTKB | Mixed | +16,647 | -$19.6K | EDGAR |
| 2026-03-13 | CTKB | Gift (G) | −1,176,000 | $0 | EDGAR |
| 2026-03-12 | CTKB | Mixed | +17,669 | -$32.7K | EDGAR |
| 2026-02-20 | CTKB | Mixed | +937 | -$1.7K | EDGAR |
| 2025-11-20 | CTKB | Mixed | +15,908 | -$28.3K | EDGAR |
| 2025-08-20 | CTKB | Mixed | +15,293 | -$23.3K | EDGAR |
| 2025-05-21 | CTKB | Mixed | +10,324 | -$11.7K | EDGAR |
| 2025-03-12 | CTKB | Mixed | +12,087 | -$22.2K | EDGAR |
| 2025-03-06 | CTKB | Grant (A) | — | $0 | EDGAR |
| 2025-02-20 | CTKB | Mixed | +1,393 | -$3.1K | EDGAR |