Joseph R Bronson
CIK 1209040 · President & COO · last filed 2026-07-02
Joseph R Bronson is a President & COO who has filed 83 SEC Form 4 insider transactions across 7 companies since 2007. The most recent filing, for PDFS, was dated Jul 2, 2026. Across all open-market trades the lifetime net is −$9.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $17.6M across reported positions. 43 SEC filings were submitted jointly with JACOBS SOLUTIONS INC.
"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.
MXIM 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
LIVERMORE, CA 94551
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| PDFS | Director | 40,956 | $40.82 | $1.67M | -$975.3K | 14 | 2026-07-02 |
| MAXIM INTEGRATED PRODUCTS INC (MXIM) Delisted | Director | 19,874 | $103.14 | $2.05M | -$5.40M | 31 | 2020-11-09 |
| J | Director | 28,103 | $147.14 | $4.14M | -$315.3K | 4 | 2020-08-07 |
| JACOBS SOLUTIONS INC. (JEC) Delisted | Director | 28,802 | — | — | -$2.70M | 27 | 2019-05-16 |
| SANM | President & COO | 49,767 | $161.34 | $8.03M | $84.0K | 2 | 2008-02-28 |
| ADVANCED ENERGY INDUSTRIES INC (AEISE) Delisted | Director | 33,000 | — | — | $0 | 2 | 2007-05-04 |
| FORM | President | 36,887 | $101.11 | $3.73M | $0 | 1 | 2007-01-05 |
Recent Filings
83 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-07-02 | PDFS | Grant (A) | +2,689 | $0 | EDGAR |
| 2025-07-02 | PDFS | Grant (A) | +7,429 | $0 | EDGAR |
| 2024-07-02 | PDFS | Grant (A) | +4,382 | $0 | EDGAR |
| 2024-02-22 | PDFS | Sell (S) | −15,000 | -$519.5K | EDGAR |
| 2024-02-21 | PDFS | Notice (144) | −15,000 | -$509.7K | EDGAR |
| 2023-07-05 | PDFS | Grant (A) | +3,354 | $0 | EDGAR |
| 2023-02-24 | PDFS | Sell (S) | −12,500 | -$455.8K | EDGAR |
| 2022-07-05 | PDFS | Grant (A) | +7,212 | $0 | EDGAR |
| 2021-08-30 | — | Disp (D) | −19,874 | $0 | |
| 2021-07-02 | PDFS | Grant (A) | +4,688 | $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.