Tran Nguyen
CIK 1457013 · Chief Strategy Officer and CFO · last filed 2026-03-05
"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.
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Disclosed Exposure
$801.9K
Companies
6
Total Filings
48
Lifetime Open-Market Net
-$15.19M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| PRTA | Chief Strategy Officer and CFO | 97,205 | $8.25 | $801.9K | -$15.19M | 30 | 2026-03-05 |
| RAIN | Director | — | $2.04 | — | $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 | — | $2.64 | — | $0 | 1 | 2009-03-02 |
Recent Filings · Page 2 of 5
48 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-02-17 | PRTA | Mixed | — | -$466.1K | EDGAR |
| 2023-01-20 | PRTA | Mixed | — | -$488.0K | EDGAR |
| 2022-12-23 | PRTA | Mixed | — | -$522.4K | EDGAR |
| 2022-11-25 | PRTA | Mixed | — | -$543.6K | EDGAR |
| 2022-10-21 | PRTA | Mixed | — | -$497.1K | EDGAR |
| 2022-09-23 | PRTA | Mixed | — | -$240.2K | EDGAR |
| 2022-08-26 | PRTA | Mixed | — | -$234.4K | EDGAR |
| 2022-08-19 | RAIN | Grant (A) | — | $0 | EDGAR |
| 2022-07-22 | PRTA | Mixed | — | -$1.81M | EDGAR |
| 2022-02-25 | PRTA | Grant (A) | — | $0 | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.