AmpliTech Group, Inc. - AMPG
Detailed investor-level table based on 13F positions.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| BARD ASSOCIATES INC | History | Reduced | 1,597,195 | 3,034 | 0.76% | 1.23% | 1 | -3,534 | -0.22% | Q1 2026 | May 07, 2026 |
| VANGUARD GROUP INC | History | No change | 768,050 | 2,296 | 0.0% | 0.0% | 2 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 805,436 | 1,530 | 0.0% | — | 3 | +805,436 | New | Q1 2026 | May 15, 2026 |
| Creek Drive Management Group LLC | History | Added to | 735,500 | 1,397 | 0.32% | 0.28% | 4 | +335,500 | 83.88% | Q1 2026 | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Added to | 717,600 | 1,363 | 0.0% | 0.0% | 5 | +607,189 | 549.94% | Q1 2026 | May 15, 2026 |
| Cable Car Capital, LP | History | Added to | 530,890 | 1,008 | 0.35% | 0.0% | 6 | +505,890 | 2023.56% | Q1 2026 | May 15, 2026 |
| Integrated Wealth Concepts LLC | History | New | 424,810 | 807 | 0.01% | — | 7 | +424,810 | New | Q1 2026 | May 15, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 372,600 | 707 | 0.0% | 0.0% | 8 | +214,400 | 135.52% | Q1 2026 | May 14, 2026 |
| CITADEL ADVISORS LLC | History | Reduced | 256,860 | 488 | 0.0% | 0.0% | 9 | -61,140 | -19.23% | Q1 2026 | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 242,726 | 461 | 0.0% | 0.0% | 10 | +48,106 | 24.72% | Q1 2026 | May 15, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Added to | 215,548 | 409 | 0.0% | 0.0% | 11 | +131,599 | 156.76% | Q1 2026 | May 07, 2026 |
| Pekin Hardy Strauss, Inc. | History | Added to | 160,800 | 305 | 0.03% | 0.02% | 12 | +80,000 | 99.01% | Q1 2026 | May 06, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 111,257 | 211 | 0.0% | — | 13 | +111,257 | New | Q1 2026 | May 08, 2026 |
| BlackRock, Inc. | History | Added to | 108,133 | 205 | 0.0% | 0.0% | 14 | +13,215 | 13.92% | Q1 2026 | May 13, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | New | 105,849 | 201 | 0.0% | — | 15 | +105,849 | New | Q1 2026 | May 15, 2026 |
| GSA CAPITAL PARTNERS LLP | History | Reduced | 89,192 | 169 | 0.01% | 0.04% | 17 | -65,362 | -42.29% | Q1 2026 | May 08, 2026 |
| STATE STREET CORP | History | No change | 89,168 | 169 | 0.0% | 0.0% | 16 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | History | No change | 87,840 | 166 | 0.03% | 0.04% | 18 | 0 | 0.0% | Q1 2026 | May 11, 2026 |
| CORSAIR CAPITAL MANAGEMENT, L.P. | History | Reduced | 69,722 | 132 | 0.02% | 0.08% | 19 | -102,000 | -59.4% | Q1 2026 | May 15, 2026 |
| SIG BROKERAGE, LP | History | No change | 55,000 | 104 | 0.0% | 0.01% | 20 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Reduced | 49,039 | 93 | 0.0% | 0.0% | 21 | -66,775 | -57.66% | Q1 2026 | May 15, 2026 |
| NORTHERN TRUST CORP | History | No change | 46,567 | 88 | 0.0% | 0.0% | 22 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | History | New | 44,954 | 85 | 0.01% | — | 23 | +44,954 | New | Q1 2026 | May 12, 2026 |
| XTX Topco Ltd | History | Added to | 43,233 | 82 | 0.0% | 0.0% | 24 | +9,596 | 28.53% | Q1 2026 | May 15, 2026 |
| JANE STREET GROUP, LLC | History | Reduced | 32,800 | 62 | 0.0% | 0.0% | 25 | -159,592 | -82.95% | Q1 2026 | May 12, 2026 |
| LPL Financial LLC | History | New | 30,710 | 58 | 0.0% | — | 26 | +30,710 | New | Q1 2026 | May 06, 2026 |
| UBS Group AG | History | Added to | 26,163 | 49 | 0.0% | 0.0% | 27 | +1,808 | 7.42% | Q1 2026 | May 05, 2026 |
| Legato Capital Management LLC | History | No change | 20,675 | 39 | 0.0% | 0.01% | 28 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| SBI Securities Co., Ltd. | History | Added to | 20,404 | 38 | 0.0% | 0.0% | 29 | +13,413 | 191.86% | Q1 2026 | Apr 27, 2026 |
| Virtu Financial LLC | History | Reduced | 14,738 | 28 | 0.0% | 0.0% | 30 | -4,785 | -24.51% | Q1 2026 | May 14, 2026 |
| Bryn Mawr Trust Advisors, LLC | History | No change | 14,775 | 28 | 0.0% | 0.0% | 31 | 0 | 0.0% | Q1 2026 | May 04, 2026 |
| MARSHALL WACE, LLP | History | Reduced | 14,442 | 27 | 0.0% | 0.0% | 32 | -46,167 | -76.17% | Q1 2026 | May 14, 2026 |
| THOMPSON DAVIS & CO., INC. | History | Reduced | 12,000 | 22 | 0.01% | 0.06% | 33 | -20,266 | -62.81% | Q1 2026 | Apr 16, 2026 |
| MORGAN STANLEY | History | Reduced | 10,936 | 20 | 0.0% | 0.0% | 34 | -6,330 | -36.66% | Q1 2026 | May 15, 2026 |
| Vanguard Global Advisers, LLC | History | New | 9,949 | 18 | 0.0% | — | 35 | +9,949 | New | Q1 2026 | May 08, 2026 |
| OSAIC HOLDINGS, INC. | History | Reduced | 6,125 | 11 | 0.0% | 0.0% | 36 | -2,612 | -29.9% | Q1 2026 | May 15, 2026 |
| Tower Research Capital LLC (TRC) | History | Added to | 4,383 | 8 | 0.0% | 0.0% | 37 | +3,412 | 351.39% | Q1 2026 | May 15, 2026 |
| Cornerstone Planning Group LLC | History | No change | 3,800 | 8 | 0.0% | 0.0% | 38 | 0 | 0.0% | Q1 2026 | May 06, 2026 |
| ROYAL BANK OF CANADA | History | Added to | 915 | 2 | 0.0% | 0.0% | 39 | +637 | 229.14% | Q1 2026 | May 15, 2026 |
| TFC Financial Management, Inc. | History | New | 1,000 | 1 | 0.0% | — | 42 | +1,000 | New | Q1 2026 | Apr 23, 2026 |
| CITIGROUP INC | History | New | 574 | 1 | 0.0% | — | 41 | +574 | New | Q1 2026 | May 11, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | Reduced | 750 | 1 | 0.0% | 0.0% | 40 | -150 | -16.67% | Q1 2026 | May 15, 2026 |
| SymBiosis Capital Partners, LLC | History | Closed out | 0 | 0 | — | 12.09% | — | -2,555,000 | -100.0% | Q1 2026 | May 12, 2026 |
| Informed Momentum Co LLC | History | Closed out | 0 | 0 | — | 0.06% | — | -174,680 | -100.0% | Q1 2026 | May 13, 2026 |
| SEI INVESTMENTS CO | History | Closed out | 0 | 0 | — | 0.0% | — | -106,639 | -100.0% | Q1 2026 | May 13, 2026 |
| Evernest Financial Advisors, LLC | History | Closed out | 0 | 0 | — | 0.05% | — | -74,000 | -100.0% | Q1 2026 | May 04, 2026 |
| Engineers Gate Manager LP | History | Closed out | 0 | 0 | — | 0.0% | — | -20,658 | -100.0% | Q1 2026 | May 15, 2026 |
| Squarepoint Ops LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -15,055 | -100.0% | Q1 2026 | May 15, 2026 |
| SIMPLEX TRADING, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -12,911 | -100.0% | Q1 2026 | May 14, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -12,664 | -100.0% | Q1 2026 | May 15, 2026 |
| EQUITEC PROPRIETARY MARKETS, LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -6,000 | -100.0% | Q1 2026 | May 11, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Closed out | 0 | 0 | — | — | — | -17 | -100.0% | Q1 2026 | May 15, 2026 |
| MARYLAND CAPITAL ADVISORS INC. | History | No change | 200 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 20, 2026 |