Alpha Pro Tech Ltd
APT- Exchange
- NYSE
- Industry
- Orthopedic, Prosthetic & Surgical Appliances & Supplies
- SEC CIK
- 0000884269
No open-market purchases or sales by Alpha Pro Tech Ltd insiders were filed in the last 90 days; 41 institutions reported holding it in 13F filings for Q2 2026, worth $17.1M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Alpha Pro Tech Ltd as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 37
- +3 vs. Q4 2025
- Shares held
- 3.04M
- +769.5K (+33.8%) vs. Q4 2025
- Total value
- $13.5M
- +$3.42M (+33.9%) vs. Q4 2025
- New holders
- 8
- 5 more added
- Sold out
- 5
- 6 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting APT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 41 | $17.1M |
| Q1 2026 | 37 | $13.5M |
| Q4 2025 | 35 | $12.8M |
| Q3 2025 | 40 | $14.4M |
| Q2 2025 | 35 | $14.0M |
| Q1 2025 | 35 | $15.7M |
| Q4 2024 | 30 | $16.4M |
| Q3 2024 | 34 | $18.5M |
| Q2 2024 | 37 | $18.1M |
| Q1 2024 | 39 | $20.2M |
| Q4 2023 | 36 | $13.4M |
| Q3 2023 | 29 | $10.5M |
| Q2 2023 | 30 | $9.61M |
| Q1 2023 | 30 | $9.87M |
| Q4 2022 | 35 | $9.83M |
| Q3 2022 | 37 | $9.90M |
| Q2 2022 | 39 | $11.9M |
| Q1 2022 | 36 | $10.5M |
| Q4 2021 | 44 | $17.3M |
| Q3 2021 | 47 | $17.9M |
| Q2 2021 | 59 | $32.1M |
| Q1 2021 | 66 | $50.6M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Alpha Pro Tech Ltd; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Needham Investment Management LLC | 642,500 | $2.85M | 0.15% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 553,674 | $2.46M | 0.00% | +553,674 | New |
| Renaissance Technologies LLC | 544,072 | $2.42M | 0.00% | +21,100+4.0% | Added |
| BlackRock, Inc. | 271,800 | $1.21M | 0.00% | +1,391+0.5% | Added |
| Susquehanna International Group, LLP | 141,226 | $627.0K | 0.00% | +72,915+106.7% | Added |
| Dimensional Fund Advisors LP | 137,335 | $609.8K | 0.00% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 133,352 | $591.0K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 113,071 | $502.0K | 0.02% | +113,071 | New |
| Bridgeway Capital Management, LLC | 78,525 | $348.7K | 0.01% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 68,386 | $304.1K | 0.00% | −24,486−26.4% | Reduced |
| Arrowstreet Capital, Limited Partnership | 58,309 | $258.9K | 0.00% | 00.0% | Unchanged |
| Vanguard Fiduciary Trust Co | 51,432 | $228.4K | 0.00% | +51,432 | New |
| State Street Corp | 46,957 | $208.5K | 0.00% | 00.0% | Unchanged |
| Essex Investment Management Co LLC | 34,375 | $152.6K | 0.02% | 00.0% | Unchanged |
| Jane Street Group, LLC | 25,630 | $113.8K | 0.00% | +25,630 | New |
| Pinnacle Financial Partners, Inc. | 25,000 | $111.0K | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 18,691 | $83.0K | 0.00% | −14,123−43.0% | Reduced |
| Northern Trust Corp | 18,074 | $80.2K | 0.00% | 00.0% | Unchanged |
| Caldwell Sutter Capital, Inc. | 16,236 | $72.1K | 0.03% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 16,000 | $72.0K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 14,717 | $65.3K | 0.00% | +14,717 | New |
| James Investment Research Inc | 11,050 | $49.1K | 0.01% | 00.0% | Unchanged |
| Morgan Stanley | 8,766 | $38.9K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 4,780 | $21.2K | 0.00% | −18,700−79.6% | Reduced |
| Vanguard Global Advisers, LLC | 3,961 | $17.6K | 0.00% | +3,961 | New |
| Wells Fargo & Company | 3,001 | $13.3K | 0.00% | +10.0% | Added |
| Tower Research Capital LLC (TRC) | 642 | $2.85K | 0.00% | −504−44.0% | Reduced |
| Barclays PLC | 426 | $1.89K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 363 | $1.73K | 0.00% | +363 | New |
| SBI Securities Co., Ltd. | 252 | $1.12K | 0.00% | +1+0.4% | Added |
| Jones Financial Companies LLLP | 150 | $660 | 0.00% | +150 | New |
| CWM, LLC | 100 | $444 | 0.00% | 00.0% | Unchanged |
| TD Waterhouse Canada Inc. | 40 | $186 | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 40 | $182 | 0.00% | −566−93.4% | Reduced |
| Archer Investment Corp | 39 | $173 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 13 | $58 | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 1 | $4 | 0.00% | −75−98.7% | Reduced |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −21,351−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −6,612−100.0% | Sold out |
| Federation des caisses Desjardins du Quebec | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| Garton & Associates Financial Advisors LLC | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |