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$AMPG
$2.62 +$0.04 (1.75%) Close

Ownership

13F as of Q2 2026 · 30.0M shares outstanding

Who owns AMPG?

By type of holder
Institutions 21.8% Insiders 10.9% Everyone else 67.3%
Concentration Top 10 holders own 24.8%
Maqbool Fawad 9.1% · Bard Associates Inc 4.9%
Institutional ownership
21.8%
+1.4 pts vs last qtr
Institutional holders
61
+23 vs last qtr
Net shares bought
+416.7K
by institutions in Q2 2026
New / sold out
32 / 9
positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026
  • HRT Financial LP NEW +551.1K
  • BlackRock, Inc. +414.9K

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Biggest sellers in Q2 2026
  • Creek Drive Management Group LLC SOLD OUT −735.5K
  • Cable Car Capital, LP SOLD OUT −530.9K

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Who is planning to sell?

Notices of proposed sale, last 12 months
$586K
5 notices from 3 people
Shares covered
107.2K
0.36% of the company
Arranged in advance
0%
of the value is under a 10b5-1 plan
Under a 10b5-1 plan No plan
$0$222.0K$444.0KNovDecJanFebMarAprMay 2026: $444.0K without a planMayJun 2026: $142.1K without a planJunJulAugSepOct
Largest proposed sellers
  • Louisa Sanfratello Officer $245K
  • Mazziota Daniel Richard Director $192K

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Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2019–FY2025
+366.4%
+29.26% a year
Each share's claim on the business
−78.6%
shrank without buying or selling a share
Spent on buybacks vs paid in stock
— vs $2.83M
over 7 fiscal years
Diluted shares, split-adjusted
2.7M11.9M21.2M2019: 4.5M shares'192020: 2.8M shares'202021: 8.9M shares'212022: 9.6M shares'222023: 9.7M shares'232024: 10.8M shares'242025: 21.0M shares'25
Buybacks Stock-based comp
$0$366.0K$732.0K2019 buybacks: $02019 stock comp: $118.0K'192020 buybacks: $02020 stock comp: $128.9K'202021 buybacks: $02021 stock comp: $732.0K'212022 buybacks: $02022 stock comp: $399.1K'222023 buybacks: $02023 stock comp: $389.7K'232024 buybacks: $02024 stock comp: $517.8K'242025 buybacks: $02025 stock comp: $544.2K'25

How patient are the owners?

Institutional shares by how long they've been held
5+ years45% 3–5 years1% 1–3 years15% Under 1 year40%
Quarterly turnover
44.7%
of institutional shares changed hands
Top 10 managers, median time held
1 year

Super Investors

Investment managers reporting AMPG on Form 13F
BA
Bard Associates Inc
Shares
1.5M
% of company
4.92%
Change vs last qtr
−119.9K (−7.5%)
Held since
≤2021
VC
Vanguard Capital Management LLC
Shares
956.5K
% of company
3.18%
Change vs last qtr
+151.0K (+18.8%)
Held since
≤2021

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Institutional Funds

Mutual funds and ETFs reporting AMPG on Form N-PORT; together they hold 5.0% of the company
VT
Position value
$4.75M
% of company
2.27%
% of the fund
0.00%
As of
June 30, 2026
VE
Position value
$1.75M
% of company
0.84%
% of the fund
0.00%
As of
June 30, 2026

18 more funds behind a free account

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Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G
MF
Maqbool Fawad
Insider
Shares
2.7M
% of company
9.08%
Change vs last qtr
—
Held since
—
MD
Mazziota Daniel Richard
Insider
Shares
255.2K
% of company
0.85%
Change vs last qtr
—
Held since
—

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