HolderBook

AMPLITECH GROUP INC (AMPG)

Institutional ownership reported to the SEC as of Q2 2026, across 22 quarters.

71
Reporting holders
$112.7M
Reported value
25.9%
Of shares outstanding
49.4%
Calls
2.6%
Puts
+27
Holder change

Institutions report 7,782,709 shares against 30,043,887 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

FilerValueShares Their book Held Change
CITADEL ADVISORS LLC$20.1Moptions only0.00%3qOPTIONS
SUSQUEHANNA INTERNATIONAL GROUP, LLP$13.1M11,1290.00%3qHELD
BARD ASSOCIATES INC$10.3M1,477,2652.28%22q-7.5%-$834.7K
GROUP ONE TRADING LLC$8.5Moptions only0.01%3qOPTIONS
JANE STREET GROUP, LLC$8.3M136,6060.00%4qHELD
Cable Car Capital, LP$7.0M1,000,0000.15%newNEW
VANGUARD CAPITAL MANAGEMENT LLC$6.7M956,4660.00%2q+18.8%+$1.1M
HRT FINANCIAL LP$3.8M551,1060.01%newNEW
BlackRock, Inc.$3.6M522,9880.00%5q+383.7%+$2.9M
PEAK6 LLC$3.5Moptions only0.01%newOPTIONS
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.$3.1M449,5100.20%2q+899.9%+$2.8M
SIMPLEX TRADING, LLC$2.7M123,8740.00%3qHELD
EQUITEC PROPRIETARY MARKETS, LLC$2.0M2,6790.35%newNEW
GEODE CAPITAL MANAGEMENT, LLC$1.7M246,0660.00%21q+1.4%+$23.3K
STATE STREET CORP$1.6M226,9360.00%21q+154.5%+$958.9K
NATIONAL BANK OF CANADA /FI/$1.5M106,9000.00%newNEW
DIMENSIONAL FUND ADVISORS LP$1.3M185,4210.00%5q-14.0%-$209.7K
IMC-Chicago, LLC$1.3M51,5610.00%newNEW
Integrated Wealth Concepts LLC$984.6K141,4700.00%2q-66.7%-$2.0M
Informed Momentum Co LLC$937.0K134,6250.08%newNEW
VANGUARD FIDUCIARY TRUST CO$907.9K130,4470.00%2q+17.2%+$133.6K
PFG Investments, LLC$769.8K110,6000.03%newNEW
BRIDGEWAY CAPITAL MANAGEMENT, LLC$736.7K105,8490.01%2qHELD
THOMPSON SIEGEL & WALMSLEY LLC$731.0K105,0400.01%newNEW
FNY Investment Advisers, LLC$643.0K92,5000.23%newNEW
TWO SIGMA INVESTMENTS, LP$640.5K92,0320.00%5q+87.7%+$299.2K
SEI INVESTMENTS CO$555.0K79,7470.00%newNEW
UBS Group AG$479.1K68,8380.00%7q+163.1%+$297.0K
ESSEX INVESTMENT MANAGEMENT CO LLC$421.3K60,5260.06%6q-31.1%-$190.1K
SIG BROKERAGE, LP$343.0K21,7820.01%3qHELD
NORTHERN TRUST CORP$342.3K49,1780.00%20q+5.6%+$18.2K
XTX Topco Ltd$334.4K48,0430.00%3q+11.1%+$33.5K
Warberg Asset Management LLC$285.4Koptions only0.05%newOPTIONS
LPL Financial LLC$257.5K37,0000.00%2q+20.5%+$43.8K
CITIGROUP INC$244.9K35,1920.00%2q+6031.0%+$240.9K
Caitong International Asset Management Co., Ltd$226.0K32,4750.03%newNEW
MANGROVE PARTNERS IM, LLC$217.2K31,2040.01%newNEW
CORSAIR CAPITAL MANAGEMENT, L.P.$213.8K30,7220.03%4q-55.9%-$271.4K
Midwest Financial Group LLC$201.5K28,9500.07%newNEW
Tower Research Capital LLC (TRC)$197.4K28,3690.00%4q+547.3%+$166.9K
TUDOR INVESTMENT CORP ET AL$179.6Koptions only0.00%newOPTIONS
FORT WASHINGTON INVESTMENT ADVISORS INC /OH/$166.0K23,8440.00%newNEW
Schonfeld Strategic Advisors LLC$128.5K18,4620.00%newNEW
Private Advisor Group, LLC$121.1K17,4000.00%newNEW
Squarepoint Ops LLC$118.5K17,0270.00%newNEW
Foundations Investment Advisors, LLC$117.6K16,8930.00%newNEW
Walser Wealth Management Company, A Ltd Liability Co$117.5K16,8830.05%newNEW
Bryn Mawr Trust Advisors, LLC$102.8K14,7750.00%6qHELD
Jefferies Financial Group Inc.$100.9K14,4000.00%newNEW
Legato Capital Management LLC$99.4K14,2840.01%6q-30.9%-$44.5K
StoneX Group Inc.$98.8K20,5160.00%newNEW
Tradition Wealth Management, LLC$98.5K12,7490.01%newNEW
SBI Securities Co., Ltd.$94.2K13,5390.00%7q-33.6%-$47.8K
Daiwa Securities Group Inc.$91.9K6,6000.00%newNEW
MILLENNIUM MANAGEMENT LLC$83.7K12,0270.00%newNEW
Virtu Financial LLC$82.0K11,8520.00%4q-19.6%-$20.0K
MORGAN STANLEY$72.5K10,4150.00%7q-4.8%-$3.6K
Vanguard Global Advisers, LLC$69.2K9,9490.00%2qHELD
PNC Financial Services Group, Inc.$27.8K4,0000.00%newNEW
Cornerstone Planning Group LLC$24.6K3,8000.00%14qHELD
ROYAL BANK OF CANADA$16.0K2,2440.00%3q+145.2%+$9.5K
Crewe Advisors LLC$13.9K2,0000.00%newNEW
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO$8.2K1,1780.00%newNEW
WELLS FARGO & COMPANY/MN$7.0K1,0000.00%newNEW
Arax Advisory Partners$7.0K1,0000.00%newNEW
TFC Financial Management, Inc.$7.0K1,0000.00%2qHELD
JONES FINANCIAL COMPANIES LLLP$6.9K1,0500.00%3q+40.0%+$2.0K
OSAIC HOLDINGS, INC.$4.3K6250.00%19q-89.8%-$38.3K
ASSETMARK, INC$6961000.00%newNEW
FMR LLC$610.00%newNEW
NewEdge Advisors, LLC$000.00%newNEW

Five percent filings

Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →

FiledFormFiler % of class
2026-10-0713GFunicular Funds, LPwith 2 co-filers5.4%
2026-10-0613GCitadel Securities GP LLCwith 6 co-filers5.7%
2026-08-1413GG1 Execution Services, LLCwith 2 co-filers6.9%

What the insiders did

Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.

Officers and directors

DateInsiderRoleSideSharesValue
2026-05-28Sanfratello LouisaChief Financial OfficerSold50,000$240.1K
2026-06-01Flores Jorge LuisChief Operating OfficerSold30,000$160.9K

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q2 202671$112.7M7,782,70939151158.2%
Q1 202644$13.9M6,155,2588121115.6%
Q4 202545$29.5M7,478,541171485.2%
Q3 202530$13.4M3,456,604111140.0%
Q2 202524$8.0M3,753,91351040.0%
Q1 202522$5.2M3,365,7949530.0%
Q4 202421$10.9M2,114,3728340.0%
Q3 202415$1.9M2,454,7622340.0%
Q2 202417$1.1M1,021,0813530.0%
Q1 202417$1.9M1,038,5142640.0%
Q4 202317$1.9M1,000,3271840.0%
Q3 202318$2.1M1,048,1702460.0%
Q2 202319$2.2M947,9294710.0%
Q1 202316$2.0M731,2665210.0%
Q4 202215$1.7M786,4305420.0%
Q3 202211$1.1M620,8172420.0%
Q2 202212$1.5M718,1972510.0%
Q1 202215$2.6M775,8904260.0%
Q4 202113$3.4M850,1434510.0%
Q3 202111$3.0M839,4672530.0%
Q2 202113$3.7M811,98811010.0%
Q1 20214$1.7M188,3614000.0%