Tran Nguyen
CIK 1457013 · Chief Strategy Officer and CFO · last filed 2026-07-30
Tran Nguyen is a Chief Strategy Officer and CFO who has filed 51 SEC Form 4 insider transactions across 6 companies since 2009. The most recent filing, for PRTA, was dated Jul 30, 2026. Across all open-market trades the lifetime net is −$15.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $896.2K 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.
$896.2K
6
51
-$15.19M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| PRTA | Chief Strategy Officer and CFO | 97,205 | $9.22 | $896.2K | -$15.19M | 31 | 2026-07-30 |
| RAIN | Director | — | $1.11 | — | $0 | 3 | 2024-01-26 |
| Sierra Oncology, Inc. (SRRA) Delisted | Director | — | $54.99 | — | $0 | 3 | 2019-06-12 |
| Sierra Oncology, Inc. (DNAI) Delisted | Director | — | — | — | $0 | 1 | 2016-06-13 |
| Pernix Sleep, Inc. (SOMX) Delisted | SVP and CFO | 50,361 | — | — | -$2.5K | 9 | 2013-01-03 |
| MBRX | VP and CFO | — | $0.45 | — | $0 | 1 | 2009-03-02 |
Recent Filings
51 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-07-30 | PRTA | Mixed | — | -$487.9K | EDGAR |
| 2026-03-05 | PRTA | Grant (A) | — | $0 | EDGAR |
| 2025-07-30 | PRTA | Grant (A) | +95,000 | $0 | EDGAR |
| 2025-03-07 | PRTA | Grant (A) | — | $0 | EDGAR |
| 2025-02-14 | PRTA | Other (J) | −995 | $0 | EDGAR |
| 2024-03-04 | ATRA | Notice (144) | −10,728 | -$8.3K | EDGAR |
| 2024-02-29 | PRTA | Grant (A) | — | $0 | EDGAR |
| 2024-01-26 | RAIN | Disp (D) | — | $0 | EDGAR |
| 2023-08-11 | RAIN | Grant (A) | — | $0 | EDGAR |
| 2023-05-17 | PRTA | Notice (144) | −95,000 | -$7.12M | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.