# ALPHA PRO TECH LTD COM

ALPHA PRO TECH LTD COM is a security (CUSIP 020772109) tracked across SEC portfolio filings. 38 institutional managers reported $17.7M on Form 13F as of 2026-06-30; 1 registered fund positions totaling $456K via N-PORT as of 2026-03-31.

## Summary

- Issuer: ALPHA PRO TECH LTD
- Class: COM
- CUSIP: 020772109
- Asset category: EC
- 13F holders: 38
- 13F value: $17.7M
- 13F period: 2026-06-30
- N-PORT fund positions: 1
- N-PORT value: $456K
- N-PORT report: 2026-03-31

## Top institutional holders (Form 13F)

_Showing 15 of 38 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $3.5M | — |
| [NEEDHAM INVESTMENT MANAGEMENT LLC](https://search.stillhousedata.com/firm/106783) | NEW YORK, NY | $2.9M | 642,500 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $2.7M | 609,067 |
| [RENAISSANCE TECHNOLOGIES LLC](https://search.stillhousedata.com/firm/106661) | NEW YORK, NY | $2.4M | 544,072 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $1.9M | 141,226 |
| BlackRock, Inc. | New York, NY | $1.2M | 271,800 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $610K | 137,335 |
| [GROUP ONE TRADING, L.P.](https://search.stillhousedata.com/firm/37484) | CHICAGO, IL | $502K | 113,071 |
| [BRIDGEWAY CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/111441) | HOUSTON, TX | $349K | 78,525 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $304K | 68,386 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | BOSTON, MA | $259K | 58,309 |
| STATE STREET CORP | BOSTON, MA | $208K | 46,957 |
| [ESSEX INVESTMENT MANAGEMENT CO LLC](https://search.stillhousedata.com/firm/109962) | BOSTON, MA | $193K | 34,264 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $178K | 25,630 |
| SYNOVUS FINANCIAL CORP | Columbus, GA | $120K | 25,000 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $456K | 0.06% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/020772109.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.