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Louisa Sanfratello

CIK 1577896 · Chief Financial Officer · last filed 2026-05-29

Louisa Sanfratello is a Chief Financial Officer who has filed 7 SEC Form 4 insider transactions across 2 companies since 2021. The most recent filing, for AMPGZ, was dated May 29, 2026. Across all open-market trades the lifetime net is −$240.1K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $31.0K across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$31.0K

Companies

2

Total Filings

7

Lifetime Open-Market Net

-$240.1K

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
AMPGZ Chief Financial Officer 110,000 $0.28 $31.0K -$240.1K 2 2026-05-29
AmpliTech Group, Inc. (AMPGW) Delisted Chief Financial Officer — $0.08 — $0 4 2023-12-22

Recent Filings

7 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-05-29 AMPGZ Mixed — -$64.1K EDGAR
2026-05-28 AMPG Notice (144) −50,000 -$244.5K EDGAR
2026-02-03 AMPGZ Mixed +50,000 $152.0K EDGAR
2023-12-22 AmpliTech Group, Inc. (AMPGW) Delisted Grant (A) — $0 EDGAR
2022-12-22 AmpliTech Group, Inc. (AMPGW) Delisted Grant (A) — $0 EDGAR
2022-06-17 AmpliTech Group, Inc. (AMPGW) Delisted Grant (A) — $0 EDGAR
2021-12-01 AmpliTech Group, Inc. (AMPGW) Delisted Grant (A) — $0 EDGAR
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.