13F institutional ownership facts

Institutions tracked

25

Reported value

$3,886,550.00

Reported shares

976,520

Latest filing period

Q2 2026

Top institutional holders

  1. David E. Shaw - D.E. Shaw & Co. · $2,629,467 · <0.01%%
  2. Ken Griffin - Citadel Advisors · $1,296,513 · <0.01%%
  3. Jane Street Group · $672,788 · <0.01%%
  4. Renaissance Technologies · $259,408 · <0.01%%
  5. Steve Cohen - Point72 Asset Management · $142,743 · <0.01%%
  6. Geode Capital Management · $3,616,082 · <0.01%%

Data source and limitations

This page uses public SEC Form 13F disclosures and related institutional filing data. 13F reports are periodic disclosures and may not represent current real-time holdings.

13F Hub provides research and education data only. It does not provide personalized investment advice.

$AMPY

Institutional Holdings

25

Top Institutions

Top Institutions

1

David E. Shaw - D.E. Shaw & Co.

660,670 shares

NaN%

% of Portfolio

2

Ken Griffin - Citadel Advisors

325,757 shares

NaN%

% of Portfolio

3

Jane Street Group

169,042 shares

NaN%

% of Portfolio

4

Renaissance Technologies

65,178 shares

NaN%

% of Portfolio

5

Steve Cohen - Point72 Asset Management

35,865 shares

NaN%

% of Portfolio

6

Geode Capital Management

908,291 shares

NaN%

% of Portfolio

7

Nuveen

178,228 shares

NaN%

% of Portfolio

8

BNP Paribas

75,725 shares

NaN%

% of Portfolio

9

Israel Englander - Millennium Management

57,986 shares

NaN%

% of Portfolio

10

Larry Fink - BlackRock

2,462,227 shares

NaN%

% of Portfolio

11

Two Sigma Investments

45,672 shares

NaN%

% of Portfolio

12

Northern Trust Corp

276,289 shares

NaN%

% of Portfolio

13

Canada Pension Plan Investment Board

46,300 shares

NaN%

% of Portfolio

14

Morgan Stanley

457,764 shares

NaN%

% of Portfolio

15

Charles Schwab

103,099 shares

NaN%

% of Portfolio

16

Invesco

153,654 shares

NaN%

% of Portfolio

17

State Street Corp

398,857 shares

NaN%

% of Portfolio

18

UBS Group

71,149 shares

NaN%

% of Portfolio

19

Franklin Resources

25,654 shares

NaN%

% of Portfolio

20

David Solomon - Goldman Sachs

50,774 shares

NaN%

% of Portfolio

21

T. Rowe Price

29,709 shares

NaN%

% of Portfolio

22

Jamie Dimon - JPMorgan Chase

15,533 shares

NaN%

% of Portfolio

23

Legal & General

3,455 shares

NaN%

% of Portfolio

24

PNC Financial Services

1,200 shares

NaN%

% of Portfolio

25

Donald Yacktman - Yacktman Asset Management

205,000 shares

0.01%

% of Portfolio

Institutional InsightPRO

Scale Distribution

MEGA

26%

LARGE

32%

MEDIUM

18%

SMALL

24%

Geographic Distribution

North America
56%
Europe
27%
Asia Pacific
11%
Other
9%

Institutional Activity

Buyers

51

Sellers

27

Holders

63

New

17

Exited

14

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Insider TradingPRO

Trading Statistics

Insider Buyers

14

Insider Sellers

27

Purchase Value

$30.3M

Role Distribution

CEO
21%
CFO
17%
Director
33%
VP
16%
Other
5%
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RatingPRO

71

B

Overall Score

Moderate institutional interest with stable holdings

Rating Dimensions

Institutional Ownership
76
Recent Activity
72
Concentration
88
Momentum
89
Stability
81

Recent Actions

New

6

Increased

17

Decreased

11

Exited

2

Total

45

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