Dennis J. Selkoe
CIK 1582306 · last filed 2026-05-15
"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.
Loading insider history…
Disclosed Exposure
$76.0K
Companies
1
Total Filings
31
Lifetime Open-Market Net
-$4.47M
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 | Director | 9,208 | $8.25 | $76.0K | -$4.47M | 31 | 2026-05-15 |
Recent Filings · Page 3 of 4
31 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2016-11-30 | PRTA | Mixed | — | -$230.0K | EDGAR |
| 2016-08-24 | PRTA | Mixed | — | -$191.0K | EDGAR |
| 2016-05-25 | PRTA | Mixed | — | -$142.9K | EDGAR |
| 2016-05-24 | PRTA | Grant (A) | — | $0 | EDGAR |
| 2016-04-06 | PRTA | Mixed | — | -$142.9K | EDGAR |
| 2015-12-03 | PRTA | Mixed | — | -$163.5K | EDGAR |
| 2015-09-03 | PRTA | Mixed | — | -$122.0K | EDGAR |
| 2015-06-03 | PRTA | Mixed | — | -$70.6K | EDGAR |
| 2015-05-26 | PRTA | Grant (A) | — | $0 | EDGAR |
| 2015-03-10 | PRTA | Mixed | — | -$28.6K | 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.