AmpliTech Group, Inc.

SecurityAMPG / AmpliTech Group, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership215,548 shares
Latest Disclosed Value $ 409,542
Dimensional Fund Advisors Lp reports 156.76% increase in ownership of AMPG / AmpliTech Group, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 215,548 shares of AmpliTech Group, Inc. (US:AMPG) valued at $409,541 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 83,949 shares of AmpliTech Group, Inc.. This represents a change in shares of 156.76% during the quarter. The current value of the position is $1,148,871 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F AMPLITECH GROUP COM NEW 03211Q200 215,548 131,599 156.76 410 62.95 0.0000
2026-02-12 2025-12-31 13F AMPLITECH GROUP COM NEW 03211Q200 83,949 20,898 33.14 251 2.45 0.0001
2025-11-12 2025-09-30 13F AMPLITECH GROUP COM NEW 03211Q200 63,051 24,302 62.72 245 198.78 0.0001
2025-08-12 2025-06-30 13F AMPLITECH GROUP COM NEW 03211Q200 38,749 38,749 82 0.0000
2024-02-07 2023-12-31 13F AMPLITECH GROUP COM NEW 03211Q200 0 -11,861 -100.00 0 -100.00
2023-11-09 2023-09-30 13F AMPLITECH GROUP COM NEW 03211Q200 11,861 -11,408 -49.03 24 -54.72 0.0000
2023-08-09 2023-06-30 13F AMPLITECH GROUP COM NEW 03211Q200 23,269 9,582 70.01 54 43.24 0.0000
2023-05-12 2023-03-31 13F AMPLITECH GROUP COM NEW 03211Q200 13,687 0 0.00 37 0.0000
2023-02-09 2022-12-31 13F AMPLITECH GROUP COM NEW 03211Q200 13,687 13,687 0 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.