Tim Chao-Ming Chen
CIK 1891456 · Chief Executive Officer · last filed 2026-06-03
Tim Chao-Ming Chen is a Chief Executive Officer who has filed 30 SEC Form 4 insider transactions across 1 company since 2021. The most recent filing shows the insider had shares withheld for taxes covering $134.0K of NRDS on Jun 3, 2026. Across all open-market trades the lifetime net is +$2.5M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $4.6M 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.
$4.65M
1
30
$2.47M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| NRDS | Chief Executive Officer | 546,883 | $8.50 | $4.65M | $2.47M | 30 | 2026-06-03 |
Recent Filings
30 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-03 | NRDS | Tax (F) | −15,309 | -$134.0K | EDGAR |
| 2026-03-04 | NRDS | Tax (F) | −11,095 | -$122.9K | EDGAR |
| 2025-12-05 | NRDS | Tax (F) | −15,309 | -$235.9K | EDGAR |
| 2025-11-26 | NRDS | Gift (G) | — | $0 | EDGAR |
| 2025-09-04 | NRDS | Tax (F) | −15,310 | -$157.1K | EDGAR |
| 2025-06-04 | NRDS | Tax (F) | −15,309 | -$161.1K | EDGAR |
| 2025-03-05 | NRDS | Tax (F) | −11,077 | -$111.8K | EDGAR |
| 2024-12-04 | NRDS | Tax (F) | −15,310 | -$215.0K | EDGAR |
| 2024-09-06 | NRDS | Tax (F) | −14,485 | -$182.5K | EDGAR |
| 2024-06-05 | NRDS | Tax (F) | −10,779 | -$149.7K | EDGAR |