David D Chang
CIK 1611024 · President and CEO · last filed 2026-03-18
David D Chang is a President and CEO who has filed 51 SEC Form 4 insider transactions across 2 companies since 2014. The most recent filing shows the insider sold $118.0K of ALLO on Mar 18, 2026. Across all open-market trades the lifetime net is −$15.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $10.6M 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.
$10.57M
2
51
-$15.90M
Filer Profile
210 EAST GRAND AVENUE
SOUTH SAN FRANCISCO, CA 94080
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ALLO | President and CEO | 6,006,643 | $1.76 | $10.57M | -$1.10M | 30 | 2026-03-18 |
| Kite Pharma, Inc. (KITE) Delisted | EVP, R&D, Chief Medical Off. | 65,350 | — | — | -$14.80M | 15 | 2017-09-27 |
Recent Filings
51 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-18 | ALLO | Sell (S) | −47,763 | -$118.0K | EDGAR |
| 2026-03-16 | ALLO | Notice (144) | −47,763 | -$117.8K | EDGAR |
| 2026-02-04 | ALLO | Mixed | −95,269 | -$171.5K | EDGAR |
| 2026-02-02 | ALLO | Notice (144) | −243,976 | -$438.5K | EDGAR |
| 2025-03-18 | ALLO | Sell (S) | −46,668 | -$91.5K | EDGAR |
| 2025-03-14 | ALLO | Notice (144) | −46,668 | -$91.5K | EDGAR |
| 2025-02-05 | ALLO | Sell (S) | −46,003 | -$77.3K | EDGAR |
| 2025-02-03 | ALLO | Notice (144) | −46,003 | -$77.4K | EDGAR |
| 2025-01-28 | ALLO | Grant (A) | +552,174 | $0 | EDGAR |
| 2024-05-20 | ALLO | Grant (A) | +344,828 | $1.00M | 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.