Alpha Pro Tech Ltd (NYSE:APT) is held by 34 institutional investors per 13F filings through December 2025.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| NEEDHAM INVESTMENT MANAGEMENT LLC | 31 Mar, 2026 | 642,500 | 0 | 0.00% | $2,852,700.00 |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 31 Mar, 2026 | 642,500 | 7,500 | 1.18% | $2,852,700.00 |
| VANGUARD GROUP INC | 31 Mar, 2026 | 609,067 | -16,304 | -2.61% | $2,704,258.00 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 553,674 | 553,674 | 0.00% | $2,458,313.00 |
| RENAISSANCE TECHNOLOGIES LLC | 31 Mar, 2026 | 544,072 | 21,100 | 4.03% | $2,415,680.00 |
| RENAISSANCE TECHNOLOGIES LLC | 31 Mar, 2026 | 522,972 | -12,803 | -2.39% | $2,321,996.00 |
| BlackRock, Inc. | 31 Mar, 2026 | 271,800 | 1,391 | 0.51% | $1,206,792.00 |
| BlackRock, Inc. | 31 Mar, 2026 | 270,409 | -1,407 | -0.52% | $1,200,615.00 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 31 Mar, 2026 | 141,226 | 72,915 | 106.74% | $627,043.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Mar, 2026 | 137,335 | 0 | 0.00% | $609,767.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Mar, 2026 | 137,335 | -10,530 | -7.12% | $609,767.00 |
| ACADIAN ASSET MANAGEMENT LLC | 31 Mar, 2026 | 133,352 | 0 | 0.00% | $591.00 |
| ACADIAN ASSET MANAGEMENT LLC | 31 Mar, 2026 | 133,352 | -10,865 | -7.53% | $591.00 |
| GROUP ONE TRADING LLC | 31 Mar, 2026 | 113,071 | 113,071 | 0.00% | $502,035.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 92,872 | -6,434 | -6.48% | $412,478.00 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 78,525 | 0 | 0.00% | $348,651.00 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 78,525 | 0 | 0.00% | $348,651.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 68,386 | -24,486 | -26.37% | $304,142.00 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 31 Mar, 2026 | 68,311 | 4,127 | 6.43% | $303,301.00 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 31 Mar, 2026 | 58,309 | 0 | 0.00% | $258,892.00 |