AMPG · AmpliTech Group, Inc.

$3.37 -0.05 (-1.46%) At close · Sep 4

Market Cap

$100.65M

30.04M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 70

Total Value: $82,396,783

Total Shares: 14,986,283

Institutional Ownership Trend

22 quarters

Holder Concentration

Across 70 13F filers · Δ vs Mar 31, 2026

Top Holder

15.9%

−6.3 pts

Top 5

58.7%

−2.3 pts

Top 10

78.2%

−3.7 pts

HHI

821

Broadly held−170

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +24

Institutional value: +502.6%

Shares held: +56.3%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega CITADEL ADVISORS LLC	+1,186,240	1,443,100
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	+1,186,135	1,903,735
Mega JANE STREET GROUP, LLC	+1,162,106	1,194,906
Mega BlackRock, Inc.	+414,855	522,988
Mid LANDSCAPE CAPITAL MANAGEMENT, L.L.C.	+404,556	449,510

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mid Integrated Wealth Concepts LLC	−354,075	70,735
Small BARD ASSOCIATES INC	−119,930	1,477,265
Small CORSAIR CAPITAL MANAGEMENT, L.P.	−39,000	30,722
Mega DIMENSIONAL FUND ADVISORS LP	−30,127	185,421
Small ESSEX INVESTMENT MANAGEMENT CO LLC	−27,314	60,526

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Large HRT FINANCIAL LP	551,106	$3,835,697
Large PEAK6 LLC	507,300	$3,530,808
Mid Informed Momentum Co LLC	134,625	$936,990
Mid SIMPLEX TRADING, LLC	123,874	$862,163
Mid PFG Investments, LLC	110,600	$769,776

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Small Creek Drive Management Group LLC	735,500	$1,397,450
Large RENAISSANCE TECHNOLOGIES LLC	372,600	$707,940
Small Pekin Hardy Strauss, Inc.	160,800	$305,520
Mid GSA CAPITAL PARTNERS LLP	89,192	$169,464
Small Legato Capital Management LLC	20,675	$39,282

Filter: New 32 Increased 22 Reduced 10 Sold out 8 Unchanged 6

Showing 84 of 84

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$11,713,680

14.22%

1,683,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	1,683,000	$11,713,680	100.0%	Other

BARD ASSOCIATES INC

$10,281,764

12.48%

1,477,265

CITADEL ADVISORS LLC

$10,043,976

12.19%

1,443,100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	1,443,100	$10,043,976	100.0%	Defined

JANE STREET GROUP, LLC

$7,044,216

8.55%

1,012,100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	1,012,100	$7,044,216	100.0%	Defined

VANGUARD CAPITAL MANAGEMENT LLC

$6,657,003

8.08%

956,466

HRT FINANCIAL LP

$3,835,697

4.66%

551,106

BlackRock, Inc.

$3,639,996

4.42%

522,988

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BlackRock Investment Management, LLC	5,142	$35,788	1.0%	Sole
BlackRock Fund Advisors	76,346	$531,368	14.6%	Sole
BlackRock Institutional Trust Company, N.A.	441,500	$3,072,840	84.4%	Sole

PEAK6 LLC

$3,530,808

4.29%

507,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PEAK6 Investments LLC joint	507,300	$3,530,808	100.0%	Defined

LANDSCAPE CAPITAL MANAGEMENT, L.L.C.

$3,128,588

3.80%

449,510

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Landscape High Leverage Fund, LP	84,022	$584,793	18.7%	Defined
LANDSCAPE OFFSHORE HL FUND LTD.	233,083	$1,622,257	51.9%	Defined
Held directly	132,405	$921,538	29.5%	Sole

EQUITEC PROPRIETARY MARKETS, LLC

$1,715,640

2.08%

246,500

GEODE CAPITAL MANAGEMENT, LLC

$1,712,619

2.08%

246,066

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	49,124	$341,903	20.0%	Defined
Held directly	196,942	$1,370,716	80.0%	Defined

DIMENSIONAL FUND ADVISORS LP

$1,290,529

1.57%

185,421

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DFA Australia Ltd.	6,024	$41,927	3.2%	Defined
Dimensional Ireland Ltd	12,644	$88,002	6.8%	Defined
Held directly	166,753	$1,160,600	89.9%	Sole

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,270,896

1.54%

182,600

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	182,600	$1,270,896	100.0%	Other

JANE STREET GROUP, LLC

$950,777

1.15%

136,606

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Global Trading, LLC	136,606	$950,777	100.0%	Defined

Informed Momentum Co LLC

$936,990

1.14%

134,625

VANGUARD FIDUCIARY TRUST CO

$907,911

1.10%

130,447

SIMPLEX TRADING, LLC

$862,163

1.05%

123,874

STATE STREET CORP

$789,737

0.96%

113,468

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS TRUST COMPANY	113,468	$789,737	100.0%	Defined

PFG Investments, LLC

$769,776

0.93%

110,600

NATIONAL BANK OF CANADA /FI/

$744,024

0.90%

106,900

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$736,709

0.89%

105,849

THOMPSON SIEGEL & WALMSLEY LLC

$731,078

0.89%

105,040

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Perpetual Ltd	105,040	$731,078	100.0%	Defined

FNY Investment Advisers, LLC

$643,800

0.78%

92,500

TWO SIGMA INVESTMENTS, LP

$640,542

0.78%

92,032

SEI INVESTMENTS CO

$555,039

0.67%

79,747

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SEI TRUST CO	79,747	$555,039	100.0%	Sole

Integrated Wealth Concepts LLC

$492,315

0.60%

70,735

UBS Group AG

$479,111

0.58%

68,838

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	67,953	$472,952	98.7%	Defined
UBS Securities LLC	885	$6,159	1.3%	Defined

ESSEX INVESTMENT MANAGEMENT CO LLC

$421,260

0.51%

60,526

IMC-Chicago, LLC

$358,864

0.44%

51,561

NORTHERN TRUST CORP

$342,278

0.42%

49,178

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	49,178	$342,278	100.0%	Defined

XTX Topco Ltd

$334,379

0.41%

48,043

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	48,043	$334,379	100.0%	Defined

JANE STREET GROUP, LLC

$321,552

0.39%

46,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	46,200	$321,552	100.0%	Defined

Warberg Asset Management LLC

$285,360

0.35%

41,000

LPL Financial LLC

$257,520

0.31%

37,000

CITIGROUP INC

$244,936

0.30%

35,192

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	35,192	$244,936	100.0%	Defined

Caitong International Asset Management Co., Ltd

$226,026

0.27%

32,475

MANGROVE PARTNERS IM, LLC

$217,179

0.26%

31,204

EQUITEC PROPRIETARY MARKETS, LLC

$217,152

0.26%

31,200

CORSAIR CAPITAL MANAGEMENT, L.P.

$213,825

0.26%

30,722

Midwest Financial Group LLC

$201,492

0.24%

28,950

Tower Research Capital LLC (TRC)

$197,448

0.24%

28,369

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	28,369	$197,448	100.0%	Defined

SIG BROKERAGE, LP

$191,400

0.23%

27,500

TUDOR INVESTMENT CORP ET AL

$179,568

0.22%

25,800

FORT WASHINGTON INVESTMENT ADVISORS INC /OH/

$165,954

0.20%

23,844

SIG BROKERAGE, LP

$151,602

0.18%

21,782

StoneX Group Inc.

$142,791

0.17%

20,516

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STONEX FINANCIAL INC.	20,516	$142,791	100.0%	Defined

Schonfeld Strategic Advisors LLC

$128,495

0.16%

18,462

Private Advisor Group, LLC

$121,104

0.15%

17,400

Squarepoint Ops LLC

$118,507

0.14%

17,027

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	17,027	$118,507	100.0%	Defined

Foundations Investment Advisors, LLC

$117,575

0.14%

16,893

Walser Wealth Management Company, A Ltd Liability Co

$117,505

0.14%

16,883

Bryn Mawr Trust Advisors, LLC

$102,834

0.12%

14,775

Jefferies Financial Group Inc.

$100,224

0.12%

14,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JEFFERIES LLC	14,400	$100,224	100.0%	Defined

SBI Securities Co., Ltd.

$94,231

0.11%

13,539

Tradition Wealth Management, LLC

$88,733

0.11%

12,749

MILLENNIUM MANAGEMENT LLC

$83,707

0.10%

12,027

Virtu Financial LLC

$82,489

0.10%

11,852

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	11,852	$82,489	100.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$77,457

0.09%

11,129

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
G1 EXECUTION SERVICES, LLC	11,129	$77,457	100.0%	Other

MORGAN STANLEY

$72,486

0.09%

10,415

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY CAPITAL SERVICES, LLC	3,110	$21,645	29.9%	Defined
MORGAN STANLEY SMITH BARNEY LLC	7,305	$50,841	70.1%	Defined

Vanguard Global Advisers, LLC

$69,245

0.08%

9,949

Daiwa Securities Group Inc.

$45,936

0.06%

6,600

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Daiwa Capital Markets America Inc.	6,600	$45,936	100.0%	Defined

Daiwa Securities Group Inc.

$45,936

0.06%

6,600

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Daiwa Capital Markets America Inc.	6,600	$45,936	100.0%	Defined

PNC FINANCIAL SERVICES GROUP, INC.

$27,840

0.03%

4,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PNC Bank, National Association	4,000	$27,840	100.0%	Defined

Cornerstone Planning Group LLC

$26,448

0.03%

3,800

EQUITEC PROPRIETARY MARKETS, LLC

$18,645

0.02%

2,679

ROYAL BANK OF CANADA

$15,618

0.02%

2,244

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	2,244	$15,618	100.0%	Defined

Crewe Advisors LLC

$13,920

0.02%

2,000

Tradition Wealth Management, LLC

$9,744

0.01%

1,400

NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO

$8,198

0.01%

1,178

JONES FINANCIAL COMPANIES LLLP

$7,308

0.01%

1,050

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	1,050	$7,308	100.0%	Sole

WELLS FARGO & COMPANY/MN

$6,960

0.01%

1,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	1,000	$6,960	100.0%	Defined

Arax Advisory Partners

$6,960

0.01%

1,000

TFC Financial Management, Inc.

$6,960

0.01%

1,000

OSAIC HOLDINGS, INC.

$4,350

0.01%

625

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	625	$4,350	100.0%	Defined

ASSETMARK, INC

$696

0.00%

100

Jefferies Financial Group Inc.

$696

0.00%

100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JEFFERIES LLC	100	$696	100.0%	Defined

FMR LLC

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STRATEGIC ADVISERS LLC	1	$6	100.0%	Defined

HEIGHTS CAPITAL MANAGEMENT, INC AMPGZ

—

1,230,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	1,230,000	$0	—	Other

Warberg Asset Management LLC AMPGZ

—

174,400

WELLS FARGO & COMPANY/MN AMPGZ

—

1,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO CLEARING SERVICES, LLC	1,000	$0	—	Defined

NewEdge Advisors, LLC

0.00%

SUSQUEHANNA INTERNATIONAL GROUP, LLP AMPGZ

—

27,006

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
G1 EXECUTION SERVICES, LLC	27,006	$0	—	Other

UBS Group AG AMPGZ

—

861

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	861	$0	—	Defined

Cable Car Capital, LP AMPGZ

—

1,714,394

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	14,442	$27,439	100.0%	Other

Key facts CIK 1518461 CUSIP 03211Q200 13F (30d) 54 filings 53 filers Visit website