David J Aldrich
CIK 1025092 · Executive Chairman · last filed 2026-09-22
David J Aldrich is an Executive Chairman who has filed 235 SEC Form 4 insider transactions across 8 companies since 2007. The most recent filing, for MOBX, was dated Sep 22, 2026. Across all open-market trades the lifetime net is −$207.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $19.8M 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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
SWKS price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
WOBURN, MA 01801
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MOBX | Director | 78,608 | $0.76 | $59.7K | $0 | 2 | 2026-09-22 |
| INDI | Director | 263,392 | $1.59 | $418.8K | $0 | 14 | 2026-09-03 |
| BDC | Director | 57,482 | $102.99 | $5.92M | -$651.2K | 21 | 2026-05-26 |
| MOBXW | Director | 47,693 | $0.09 | $4.2K | $0 | 7 | 2026-05-04 |
| ALGM | Director | 26,746 | $32.32 | $864.4K | $0 | 5 | 2024-08-09 |
| indie Semiconductor, Inc. (INDIW) Delisted | Director | 80,222 | $1.26 | $101.1K | $0 | 6 | 2023-09-06 |
| SWKS | Director | 150,437 | $83.34 | $12.54M | -$206.82M | 175 | 2021-05-07 |
| Acacia Communications, Inc. (ACIA) Delisted | Director | 16,687 | — | — | $0 | 3 | 2019-05-20 |
Recent Filings
235 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-09-22 | MOBX | Grant (A) | +31,356 | $0 | EDGAR |
| 2026-09-03 | INDI | Mixed | +9,860 | $0 | EDGAR |
| 2026-07-02 | MOBX | Grant (A) | +13,660 | $0 | EDGAR |
| 2026-06-03 | INDI | Mixed | +4,621 | $0 | EDGAR |
| 2026-05-29 | INDI | Mixed | +59,932 | $0 | EDGAR |
| 2026-05-26 | BDC | Grant (A) | +2,123 | $0 | EDGAR |
| 2026-05-04 | MOBXW | Grant (A) | +19,805 | $0 | EDGAR |
| 2026-03-02 | INDI | Mixed | +6,148 | $0 | EDGAR |
| 2025-12-03 | INDI | Mixed | +6,466 | $0 | EDGAR |
| 2025-11-28 | MOBXW | Grant (A) | +39,166 | $0 | 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.