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# Who owns ALPHA PRO TECH LTD (APT)? Elite investor 13F holders

1 tracked elite investors reported holding ALPHA PRO TECH LTD as of 2026-06-30, including Renaissance Technologies LLC. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.

1 tracked investors currently reported holding · Latest report period: 2026-06-30 · Health Care · Health Care Equipment & Services

Alpha Pro Tech, Ltd., together with its subsidiaries, develops, manufactures, and markets a range of disposable protective apparel and infection control products in the United States and internationally. The company operates through two business segments, Building Supply and Disposable Protective Apparel. The Building Supply segment offers construction supply weatherization products, such as…

## Reported holders and securities, including exits (up to 20)

| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|  --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [Renaissance Technologies LLC](https://ownershiptrace.com/13f/investors/63) | ALPHA PRO TECH LTD | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 3156035.00 USD | 561572.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1037389/0001037389-26-000059-index.html) |

Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.

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