Company · Ownership research

AmpliTech Group, Inc. AMPG

CIK 0001518461 · CUSIP 03211Q200

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 03211Q200 (AMPG), not CUSIP 03211Q900 (AMPG), CUSIP 03211Q950 (AMPG), and does not merge CUSIPs.

This page lists the top 20 of 31 rows by value; the complete set is available through the API.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BARD ASSOCIATES INC CIK 1105907 · View history	$6.32M 1,623,729 shares	1.68%	+1.00K(+0.10%)Added	SEC filing ↗ Nov 14, 2025	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$1.19M 305,471 shares	0.00%	+83.52K(+37.60%)Added	SEC filing ↗ Nov 7, 2025	▾
03	MORGAN STANLEY CIK 895421 · Amended · View history	$837.29K 215,241 shares	0.00%	-62.97K(-22.60%)Reduced	SEC filing ↗ May 27, 2026	▾
04	Integrated Wealth Concepts LLC CIK 1737109 · View history	$751.55K 193,200 shares	0.01%	+193.20KNew	SEC filing ↗ Nov 14, 2025	▾
05	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$726.76K 186,746 shares	0.00%	+19.18K(+11.40%)Added	SEC filing ↗ Nov 12, 2025	▾
06	Informed Momentum Co LLC CIK 1510989 · View history	$679.50K 174,680 shares	0.08%	+174.68KNew	SEC filing ↗ Nov 14, 2025	▾
07	CORSAIR CAPITAL MANAGEMENT, L.P. CIK 1276470 · Amended · View history	$389.00K 100,000 shares	0.07%	+100.00KNew	SEC filing ↗ Apr 21, 2026	▾
08	BlackRock, Inc. CIK 2012383 · View history	$355.32K 91,343 shares	0.00%	+49.22K(+116.80%)Added	SEC filing ↗ Nov 12, 2025	▾
09	STATE STREET CORP CIK 93751 · View history	$346.86K 89,168 shares	0.00%	+60.97K(+216.20%)Added	SEC filing ↗ Nov 14, 2025	▾
10	Pekin Hardy Strauss, Inc. CIK 1020317 · View history	$281.25K 72,300 shares	0.03%	+72.30KNew	SEC filing ↗ Nov 10, 2025	▾
11	ESSEX INVESTMENT MANAGEMENT CO LLC CIK 201772 · View history	$269.64K 69,317 shares	0.04%	0(0.00%)Unchanged	SEC filing ↗ Nov 6, 2025	▾
12	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$245.27K 63,051 shares	0.00%	+24.30K(+62.70%)Added	SEC filing ↗ Nov 12, 2025	▾
13	JANE STREET GROUP, LLC CIK 1595888 · View history	$160.46K 41,249 shares	0.00%	+41.25KNew	SEC filing ↗ Nov 14, 2025	▾
14	NORTHERN TRUST CORP CIK 73124 · View history	$159.55K 41,016 shares	0.00%	+1.15K(+2.90%)Added	SEC filing ↗ Nov 14, 2025	▾
15	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$118.77K 30,531 shares	0.00%	+9.57K(+45.70%)Added	SEC filing ↗ Nov 14, 2025	▾
16	THOMPSON DAVIS & CO., INC. CIK 1017284 · View history	$114.71K 29,488 shares	0.07%	-35.84K(-54.90%)Reduced	SEC filing ↗ Nov 5, 2025	▾
17	Squarepoint Ops LLC CIK 1642575 · View history	$86.65K 22,276 shares	0.00%	+7.84K(+54.30%)Added	SEC filing ↗ Nov 14, 2025	▾
18	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$72.73K 18,697 shares	0.00%	+18.70KNew	SEC filing ↗ Nov 14, 2025	▾
19	Legato Capital Management LLC CIK 1442641 · View history	$63.40K 16,299 shares	0.01%	0(0.00%)Unchanged	SEC filing ↗ Nov 12, 2025	▾
20	Bryn Mawr Trust Advisors, LLC CIK 1700481 · View history	$57.48K 14,775 shares	0.00%	+4.00K(+37.10%)Added	SEC filing ↗ Nov 4, 2025	▾

Showing 20 / 31 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

3,456,615

Not deduplicated across managers

Disclosed value

$13.44M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

AmpliTech Group, Inc. · Q3 2025

Explore all 31 reporting institutions.

This page includes 20 of 31 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.