Thomas Caulfield
CIK 1342570 · EVP/Sales, Mkt, & Cust Serv · last filed 2026-10-05
Thomas Caulfield is an EVP/Sales, Mkt, & Cust Serv who has filed 51 SEC Form 4 insider transactions across 6 companies since 2007. The most recent filing, for USAR, was dated Oct 5, 2026. Across all open-market trades the lifetime net is −$1.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $17.8M across reported positions. 6 SEC filings were submitted jointly with WESTERN DIGITAL CORP.
"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.
NVLS 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
5601 GREAT OAKS PARKWAY
SAN JOSE, CA 95119
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| USAR | Director | 57,208 | $10.54 | $603.0K | $0 | 4 | 2026-10-05 |
| Sandisk Corp (SNDKV) Delisted | Director | 7,146 | — | — | $0 | 4 | 2026-05-14 |
| GFS | Director | 188,256 | $46.68 | $8.79M | $0 | 1 | 2026-05-05 |
| WDC | Director | 21,737 | $332.00 | $7.22M | $0 | 5 | 2024-11-22 |
| PDFS | Director | 30,714 | $39.22 | $1.20M | $0 | 12 | 2013-09-11 |
| NOVELLUS SYSTEMS INC (NVLS) Delisted | EVP/Sales, Mkt, & Cust Serv | 3,947 | — | — | -$1.51M | 6 | 2009-06-03 |
Recent Filings
51 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-10-05 | USAR | Grant (A) | +1,482 | $0 | EDGAR |
| 2026-07-07 | USAR | Grant (A) | +271 | $0 | EDGAR |
| 2026-06-04 | USAR | Mixed | +2,955 | $0 | EDGAR |
| 2026-05-14 | Sandisk Corp (SNDKV) Delisted | Gift (G) | −9,666 | $0 | EDGAR |
| 2026-05-05 | GFS | Grant (A) | +146,199 | $0 | EDGAR |
| 2026-03-23 | USAR | Grant (A) | — | $0 | EDGAR |
| 2026-03-05 | Sandisk Corp (SNDKV) Delisted | Gift (G) | — | $0 | EDGAR |
| 2025-11-19 | Sandisk Corp (SNDKV) Delisted | Grant (A) | +979 | $0 | EDGAR |
| 2025-03-04 | Sandisk Corp (SNDKV) Delisted | Grant (A) | +9,841 | $0 | EDGAR |
| 2024-11-22 | WDC | Grant (A) | +3,759 | $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.