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.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
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