Lambert Shiu
CIK 1796068 · Chief Accounting Officer · last filed 2026-03-17
Lambert Shiu is a Chief Accounting Officer who has filed 23 SEC Form 4 insider transactions across 1 company since 2020. The most recent filing shows the insider had shares withheld for taxes covering $50.4K of PEN on Mar 17, 2026. Across all open-market trades the lifetime net is −$2.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $12.6M 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.
$12.63M
1
23
-$2.82M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| PEN | Chief Accounting Officer | 39,623 | $318.71 | $12.63M | -$2.82M | 23 | 2026-03-17 |
Recent Filings
23 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-17 | PEN | Tax (F) | −150 | -$50.4K | EDGAR |
| 2026-02-18 | PEN | Mixed | +4,188 | -$139.8K | EDGAR |
| 2025-12-17 | PEN | Tax (F) | −300 | -$92.7K | EDGAR |
| 2025-11-18 | PEN | Mixed | +2,728 | -$238.6K | EDGAR |
| 2025-03-18 | PEN | Tax (F) | −213 | -$58.1K | EDGAR |
| 2025-03-05 | PEN | Mixed | +1,411 | -$2.02M | EDGAR |
| 2025-02-19 | PEN | Mixed | +6,580 | $74.0K | EDGAR |
| 2024-12-17 | PEN | Tax (F) | −300 | -$73.7K | EDGAR |
| 2024-12-03 | PEN | Mixed | +2,798 | -$530.2K | EDGAR |
| 2024-11-19 | PEN | Mixed | +2,066 | -$119.9K | EDGAR |