DAVID P SOUTHWELL
CIK 1251553 · Chief Executive Officer · last filed 2026-07-06
DAVID P SOUTHWELL is a Chief Executive Officer who has filed 82 SEC Form 4 insider transactions across 10 companies since 2007. The most recent filing, for RCKT, was dated Jul 6, 2026. Across all open-market trades the lifetime net is −$10.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.4M 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.
$2.36M
10
82
-$10.15M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| RCKT | Director | 167,646 | $3.14 | $526.4K | -$1.46M | 8 | 2026-07-06 |
| PTCT | Director | 22,500 | $75.39 | $1.70M | -$4.61M | 22 | 2026-01-06 |
| RCKTW | Director | 144,784 | $0.00 | $478 | -$1.95M | 5 | 2025-07-18 |
| TCRX | Chief Executive Officer | 171,569 | $0.77 | $132.8K | $185.9K | 6 | 2023-02-06 |
| SPRO | Director | — | $1.20 | — | $0 | 2 | 2018-06-06 |
| ROCKET PHARMACEUTICALS, INC. (ITEK) Delisted | President and CEO | 15,691 | — | — | $105.0K | 4 | 2017-01-24 |
| HUMAN GENOME SCIENCES INC (HGSI) Delisted | Chief Financial Officer | 0 | — | — | $52.3K | 10 | 2012-08-01 |
| First Eagle Alternative Capital BDC, Inc. (TCRD) Delisted | Director | 38,500 | — | — | $493.6K | 6 | 2010-12-07 |
| BIOSPHERE MEDICAL INC (BSMD) Delisted | Director | 0 | — | — | $0 | 5 | 2010-09-10 |
| SEPRACOR INC /DE/ (SEPR) Delisted | Chief Financial Officer | 143,728 | — | — | -$2.97M | 9 | 2007-09-12 |
Recent Filings
82 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-07-06 | RCKT | Grant (A) | +22,862 | $0 | EDGAR |
| 2026-01-06 | PTCT | Grant (A) | +4,000 | $0 | EDGAR |
| 2025-09-11 | PTCT | Mixed | — | -$329.8K | EDGAR |
| 2025-09-09 | PTCT | Notice (144) | −12,000 | -$700.1K | EDGAR |
| 2025-07-18 | RCKTW | Grant (A) | +30,000 | $0 | EDGAR |
| 2025-01-07 | PTCT | Grant (A) | +4,000 | $0 | EDGAR |
| 2024-06-20 | RCKTW | Grant (A) | — | $0 | EDGAR |
| 2024-05-20 | RCKTW | Gift (G) | −172,840 | $0 | EDGAR |
| 2024-05-10 | PTCT | Gift (G) | −1,650 | $0 | EDGAR |
| 2024-04-16 | RCKTW | Mixed | +19,624 | -$1.51M | 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.