David Scadden
CIK 1707715 · last filed 2026-06-23
David Scadden is a corporate insider who has filed 40 SEC Form 4 insider transactions across 4 companies since 2017. The most recent filing, for AGIO, was dated Jun 23, 2026. Across all open-market trades the lifetime net is +$17.5K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $734.9K 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.
$734.9K
4
40
$17.5K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| AGIO | Director | 20,419 | $35.99 | $734.9K | -$81.5K | 22 | 2026-06-23 |
| EDIT | Director | — | $2.62 | — | $0 | 8 | 2026-06-22 |
| Carisma Therapeutics Inc. (CARM) Delisted | Director | — | $0.00 | — | $0 | 1 | 2024-07-01 |
| Dianthus Therapeutics, Inc. /DE/ (MGTA) Delisted | Director | 50,129 | $11.19 | $561.1K | $99.0K | 5 | 2022-06-30 |
Recent Filings
40 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-23 | AGIO | Mixed | +2,816 | $0 | EDGAR |
| 2026-06-22 | EDIT | Grant (A) | — | $0 | EDGAR |
| 2025-11-14 | AGIO | Mixed | — | -$5.2K | EDGAR |
| 2025-10-10 | AGIO | Mixed | — | -$4.6K | EDGAR |
| 2025-10-08 | AGIO | Notice (144) | −200 | -$8.2K | EDGAR |
| 2025-10-02 | AGIO | Mixed | — | -$4.4K | EDGAR |
| 2025-09-30 | AGIO | Notice (144) | −200 | -$8.0K | EDGAR |
| 2025-08-29 | AGIO | Mixed | — | -$4.4K | EDGAR |
| 2025-08-27 | AGIO | Notice (144) | −200 | -$8.0K | EDGAR |
| 2025-07-15 | AGIO | Mixed | — | -$30.7K | 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.