ALPHA PRO TECH LTD - APT
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 1 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NEEDHAM INVESTMENT MANAGEMENT LLC | History | Added to | 642,500 | 2,852 | 0.18% | 0.21% | 1 | +7,500 | 1.18% | Q4 2025 | Feb 17, 2026 |
| VANGUARD GROUP INC | History | Reduced | 609,067 | 2,704 | 0.0% | 0.0% | 2 | -16,304 | -2.61% | Q4 2025 | Jan 29, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Reduced | 522,972 | 2,321 | 0.0% | 0.0% | 3 | -12,803 | -2.39% | Q4 2025 | Feb 12, 2026 |
| BlackRock, Inc. | History | Reduced | 270,409 | 1,200 | 0.0% | 0.0% | 4 | -1,407 | -0.52% | Q4 2025 | Feb 12, 2026 |
| CITADEL ADVISORS LLC | History | Added to | 234,851 | 1,042 | 0.0% | 0.0% | 5 | +41,656 | 21.56% | Q4 2025 | Feb 17, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Reduced | 189,811 | 842 | 0.0% | 0.0% | 6 | -119,773 | -38.69% | Q4 2025 | Feb 17, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Reduced | 137,335 | 609 | 0.0% | 0.0% | 7 | -10,530 | -7.12% | Q4 2025 | Feb 12, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Reduced | 133,352 | 591 | 0.0% | 0.0% | 8 | -10,865 | -7.53% | Q4 2025 | Feb 10, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Reduced | 92,872 | 412 | 0.0% | 0.0% | 9 | -6,434 | -6.48% | Q4 2025 | Feb 09, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | No change | 78,525 | 348 | 0.01% | 0.01% | 10 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 69,700 | 309 | 0.0% | 0.0% | 11 | +55,900 | 405.07% | Q4 2025 | Feb 12, 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | History | No change | 58,309 | 258 | 0.0% | 0.0% | 12 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| STATE STREET CORP | History | No change | 46,957 | 208 | 0.0% | 0.0% | 13 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | History | No change | 34,375 | 152 | 0.02% | 0.03% | 14 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| NewEdge Advisors, LLC | History | Added to | 32,814 | 145 | 0.0% | 0.0% | 15 | +15,980 | 94.93% | Q4 2025 | Feb 18, 2026 |
| Pinnacle Financial Partners, Inc. | History | New | 25,000 | 111 | 0.0% | — | 16 | +25,000 | New | Q4 2025 | Feb 18, 2026 |
| OSAIC HOLDINGS, INC. | History | Reduced | 23,480 | 104 | 0.0% | 0.0% | 17 | -1,800 | -7.12% | Q4 2025 | Feb 17, 2026 |
| NORTHERN TRUST CORP | History | Reduced | 18,074 | 80 | 0.0% | 0.0% | 18 | -337 | -1.83% | Q4 2025 | Feb 17, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | No change | 16,000 | 72 | 0.0% | 0.0% | 19 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| CALDWELL SUTTER CAPITAL, INC. | History | No change | 16,236 | 72 | 0.03% | 0.03% | 20 | 0 | 0.0% | Q4 2025 | Jan 30, 2026 |
| JAMES INVESTMENT RESEARCH, INC. | History | No change | 11,050 | 49 | 0.01% | 0.01% | 21 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| MORGAN STANLEY | History | Reduced | 8,766 | 38 | 0.0% | 0.0% | 22 | -2,755 | -23.91% | Q4 2025 | Feb 13, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Added to | 6,612 | 29 | 0.0% | 0.0% | 23 | +1,046 | 18.79% | Q4 2025 | Feb 17, 2026 |
| WELLS FARGO & COMPANY/MN | History | No change | 3,000 | 13 | 0.0% | 0.0% | 24 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| GROUP ONE TRADING LLC | History | Reduced | 2,000 | 8 | 0.0% | 0.0% | 25 | -50,359 | -96.18% | Q4 2025 | Feb 12, 2026 |
| Federation des caisses Desjardins du Quebec | History | No change | 1,500 | 6 | 0.0% | 0.0% | 26 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| Tower Research Capital LLC (TRC) | History | Added to | 1,146 | 5 | 0.0% | 0.0% | 27 | +448 | 64.18% | Q4 2025 | Feb 17, 2026 |
| Garton & Associates Financial Advisors LLC | History | New | 1,000 | 4 | 0.0% | — | 28 | +1,000 | New | Q4 2025 | Feb 18, 2026 |
| JPMORGAN CHASE & CO | History | Added to | 606 | 2 | 0.0% | — | 29 | +546 | 910.0% | Q4 2025 | Feb 11, 2026 |
| BARCLAYS PLC | History | Reduced | 426 | 1 | 0.0% | 0.0% | 30 | -12 | -2.74% | Q4 2025 | Feb 13, 2026 |
| SBI Securities Co., Ltd. | History | No change | 251 | 1 | 0.0% | 0.0% | 31 | 0 | 0.0% | Q4 2025 | Feb 03, 2026 |
| Inspire Advisors, LLC | History | Closed out | 0 | 0 | — | 0.02% | — | -47,323 | -100.0% | Q3 2025 | Oct 29, 2025 |
| CITIGROUP INC | History | Reduced | 76 | 0 | — | 0.0% | — | -1,505 | -95.19% | Q4 2025 | Feb 13, 2026 |
| UBS Group AG | History | Reduced | 11 | 0 | — | 0.0% | — | -444 | -97.58% | Q4 2025 | Jan 29, 2026 |
| AMERICAN NATIONAL BANK & TRUST | History | Closed out | 0 | 0 | — | — | — | -200 | -100.0% | Q3 2025 | Oct 21, 2025 |
| SIMPLEX TRADING, LLC | History | Closed out | 0 | 0 | — | — | — | -100 | -100.0% | Q3 2025 | Nov 12, 2025 |
| FMR LLC | History | Closed out | 0 | 0 | — | — | — | -50 | -100.0% | Q3 2025 | Nov 13, 2025 |
| BNP PARIBAS FINANCIAL MARKETS | History | No change | 13 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| CWM, LLC | History | No change | 100 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 26, 2026 |
| Archer Investment Corp | History | No change | 39 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 30, 2026 |
| TD Waterhouse Canada Inc. | History | No change | 40 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 27, 2026 |