AmpliTech Group, Inc. - AMPG
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SymBiosis Capital Partners, LLC | History | New | 2,555,000 | 13,234 | 12.09% | — | 1 | +2,555,000 | New | Q4 2025 | Feb 12, 2026 |
| BARD ASSOCIATES INC | History | Reduced | 1,600,729 | 4,786 | 1.23% | 1.68% | 2 | -23,000 | -1.42% | Q4 2025 | Feb 13, 2026 |
| VANGUARD GROUP INC | History | Added to | 768,050 | 2,296 | 0.0% | 0.0% | 3 | +462,579 | 151.43% | Q4 2025 | Jan 29, 2026 |
| Creek Drive Management Group LLC | History | New | 400,000 | 1,196 | 13.35% | — | 4 | +400,000 | New | Q4 2025 | Mar 24, 2026 |
| CITADEL ADVISORS LLC | History | New | 318,000 | 950 | 0.0% | — | 5 | +318,000 | New | Q4 2025 | Feb 17, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 194,620 | 582 | 0.0% | 0.0% | 6 | +7,874 | 4.22% | Q4 2025 | Feb 09, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 192,392 | 575 | 0.0% | 0.0% | 7 | +151,143 | 366.42% | Q4 2025 | Feb 12, 2026 |
| Informed Momentum Co LLC | History | No change | 174,680 | 522 | 0.06% | 0.08% | 8 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| CORSAIR CAPITAL MANAGEMENT, L.P. | History | Added to | 171,722 | 513 | 0.08% | 0.06% | 9 | +71,722 | 71.72% | Q4 2025 | Feb 17, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | New | 158,200 | 473 | 0.0% | — | 10 | +158,200 | New | Q4 2025 | Feb 12, 2026 |
| GSA CAPITAL PARTNERS LLP | History | New | 154,554 | 462 | 0.04% | — | 11 | +154,554 | New | Q4 2025 | Feb 06, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 115,814 | 346 | 0.0% | 0.0% | 12 | +85,283 | 279.33% | Q4 2025 | Feb 17, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | New | 110,411 | 330 | 0.0% | — | 13 | +110,411 | New | Q4 2025 | Feb 17, 2026 |
| SEI INVESTMENTS CO | History | New | 106,639 | 318 | 0.0% | — | 14 | +106,639 | New | Q4 2025 | Feb 13, 2026 |
| BlackRock, Inc. | History | Added to | 94,918 | 283 | 0.0% | 0.0% | 15 | +3,575 | 3.91% | Q4 2025 | Feb 12, 2026 |
| STATE STREET CORP | History | No change | 89,168 | 266 | 0.0% | 0.0% | 16 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | History | Added to | 87,840 | 262 | 0.04% | 0.04% | 17 | +18,523 | 26.72% | Q4 2025 | Feb 13, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Added to | 83,949 | 251 | 0.0% | 0.0% | 18 | +20,898 | 33.14% | Q4 2025 | Feb 12, 2026 |
| Pekin Hardy Strauss, Inc. | History | Added to | 80,800 | 241 | 0.02% | 0.03% | 19 | +8,500 | 11.76% | Q4 2025 | Jan 30, 2026 |
| Evernest Financial Advisors, LLC | History | New | 74,000 | 229 | 0.05% | — | 20 | +74,000 | New | Q4 2025 | Feb 13, 2026 |
| MARSHALL WACE, LLP | History | New | 60,609 | 181 | 0.0% | — | 21 | +60,609 | New | Q4 2025 | Feb 13, 2026 |
| SIG BROKERAGE, LP | History | New | 55,000 | 164 | 0.01% | — | 22 | +55,000 | New | Q4 2025 | Feb 17, 2026 |
| NORTHERN TRUST CORP | History | Added to | 46,567 | 139 | 0.0% | 0.0% | 23 | +5,551 | 13.53% | Q4 2025 | Feb 17, 2026 |
| XTX Topco Ltd | History | New | 33,637 | 100 | 0.0% | — | 24 | +33,637 | New | Q4 2025 | Feb 17, 2026 |
| THOMPSON DAVIS & CO., INC. | History | Added to | 32,266 | 96 | 0.06% | 0.07% | 25 | +2,778 | 9.42% | Q4 2025 | Jan 12, 2026 |
| Cable Car Capital, LP | History | New | 25,000 | 74 | 0.0% | — | 26 | +25,000 | New | Q4 2025 | Feb 17, 2026 |
| UBS Group AG | History | Added to | 24,355 | 72 | 0.0% | 0.0% | 27 | +12,528 | 105.93% | Q4 2025 | Jan 29, 2026 |
| Engineers Gate Manager LP | History | New | 20,658 | 61 | 0.0% | — | 29 | +20,658 | New | Q4 2025 | Feb 17, 2026 |
| Legato Capital Management LLC | History | Added to | 20,675 | 61 | 0.01% | 0.01% | 28 | +4,376 | 26.85% | Q4 2025 | Feb 06, 2026 |
| Virtu Financial LLC | History | Added to | 19,523 | 58 | 0.0% | 0.0% | 30 | +4,762 | 32.26% | Q4 2025 | Feb 23, 2026 |
| MORGAN STANLEY | History | Reduced | 17,266 | 51 | 0.0% | 0.0% | 31 | -197,975 | -91.98% | Q4 2025 | Feb 13, 2026 |
| Squarepoint Ops LLC | History | Reduced | 15,055 | 45 | 0.0% | 0.0% | 32 | -7,221 | -32.42% | Q4 2025 | Feb 13, 2026 |
| Bryn Mawr Trust Advisors, LLC | History | No change | 14,775 | 44 | 0.0% | 0.0% | 33 | 0 | 0.0% | Q4 2025 | Feb 04, 2026 |
| SIMPLEX TRADING, LLC | History | New | 12,911 | 38 | 0.0% | — | 34 | +12,911 | New | Q4 2025 | Feb 11, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 12,664 | 37 | 0.0% | 0.0% | 35 | -6,033 | -32.27% | Q4 2025 | Feb 17, 2026 |
| OSAIC HOLDINGS, INC. | History | Reduced | 8,737 | 26 | 0.0% | 0.0% | 36 | -398 | -4.36% | Q4 2025 | Feb 17, 2026 |
| SBI Securities Co., Ltd. | History | Reduced | 6,991 | 20 | 0.0% | 0.0% | 37 | -5,595 | -44.45% | Q4 2025 | Feb 03, 2026 |
| EQUITEC PROPRIETARY MARKETS, LLC | History | New | 6,000 | 17 | 0.01% | — | 38 | +6,000 | New | Q4 2025 | Feb 17, 2026 |
| Cornerstone Planning Group LLC | History | No change | 3,800 | 12 | 0.0% | 0.0% | 39 | 0 | 0.0% | Q4 2025 | Feb 02, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | New | 900 | 2 | 0.0% | — | 40 | +900 | New | Q4 2025 | Feb 17, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 971 | 2 | 0.0% | 0.0% | 41 | -692 | -41.61% | Q4 2025 | Feb 17, 2026 |
| ROYAL BANK OF CANADA | History | New | 278 | 1 | 0.0% | — | 42 | +278 | New | Q4 2025 | Feb 17, 2026 |
| Integrated Wealth Concepts LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -193,200 | -100.0% | Q3 2025 | Nov 14, 2025 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 17 | 0 | — | 0.0% | — | -3,108 | -99.46% | Q4 2025 | Feb 17, 2026 |
| Caitong International Asset Management Co., Ltd | History | Closed out | 0 | 0 | — | 0.0% | — | -895 | -100.0% | Q3 2025 | Nov 19, 2025 |
| CITIGROUP INC | History | Closed out | 0 | 0 | — | — | — | -35 | -100.0% | Q3 2025 | Nov 10, 2025 |
| MARYLAND CAPITAL ADVISORS INC. | History | No change | 200 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 20, 2026 |