Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 10-Q filed 2026-08-13, as of 2026-08-06)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | TPCS · NASDAQ | 10,100,311 | 1,830,738 | 18.1% | 27 | 878739200 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (1 of 1 · 878739101)
change vs 2026-03-31| # | Filer | Shares / principal | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | CACTI ASSET MANAGEMENT LLC | 20,188 | — | $106K | — |
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| Joshua H. Landes | SCHEDULE 13D/A | 2024-12-23 | 2024-12-19 | 433,605 | 4.5% |
| Nelson Obus | SCHEDULE 13D/A | 2024-12-23 | 2024-12-19 | 433,605 | 4.5% |
| Robert D. Straus | SCHEDULE 13D/A | 2024-12-23 | 2024-12-19 | 200,001 | 2.1% |
| Wynnefield Capital, Inc. | SCHEDULE 13D/A | 2024-12-23 | 2024-12-19 | 72,396 | 0.8% |
| Wynnefield Capital, Inc. Profit Sharing Plan | SCHEDULE 13D/A | 2024-12-23 | 2024-12-19 | 65,806 | 0.7% |
| Wynnefield Capital Management, LLC | SCHEDULE 13D/A | 2024-12-23 | 2024-12-19 | 295,403 | 3.1% |
| Wynnefield Partners Small Cap Value, L.P. | SCHEDULE 13D/A | 2024-12-23 | 2024-12-19 | 114,857 | 1.2% |
| Wynnefield Partners Small Cap Value, L.P. I | SCHEDULE 13D/A | 2024-12-23 | 2024-12-19 | 180,546 | 1.9% |
| Wynnefield Small Cap Value Offshore Fund, Ltd. | SCHEDULE 13D/A | 2024-12-23 | 2024-12-19 | 72,396 | 0.8% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.