13F institutional ownership facts

Institutions tracked

47

Reported value

$76,704,267.00

Reported shares

1,149,472

Latest filing period

Q1 2026

Top institutional holders

  1. Steve Cohen - Point72 Asset Management · $37,851,925 · 0.05%
  2. David E. Shaw - D.E. Shaw & Co. · $40,601,802 · 0.02%
  3. Renaissance Technologies · $14,875,452 · 0.02%
  4. First Eagle Investment Management · $12,833,914 · 0.02%
  5. Jane Street Group · $13,418,803 · 0%
  6. Two Sigma Investments · $14,462,193 · 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.

$ATRO

Institutional Holdings

47

Top Institutions

Top Institutions

1

Steve Cohen - Point72 Asset Management

567,240 shares

0.05%

% of Portfolio

2

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

608,449 shares

0.02%

% of Portfolio

3

Renaissance Technologies

222,920 shares

0.02%

% of Portfolio

4

First Eagle Investment Management

192,326 shares

0.02%

% of Portfolio

5

Jane Street Group

201,091 shares

0.00%

% of Portfolio

6

Two Sigma Investments

216,727 shares

0.01%

% of Portfolio

7

BNP Paribas

371,030 shares

0.01%

% of Portfolio

8

Israel Englander - Millennium Management

220,023 shares

0.01%

% of Portfolio

9

Capital International Investors

1,288,947 shares

0.02%

% of Portfolio

10

Canada Pension Plan Investment Board

212,800 shares

0.01%

% of Portfolio

11

Capital World Investors

560,939 shares

0.01%

% of Portfolio

12

Cliff Asness - AQR Capital Management

247,301 shares

0.01%

% of Portfolio

13

Ken Fisher - Fisher Asset Management

348,842 shares

0.01%

% of Portfolio

14

Nuveen

401,264 shares

0.01%

% of Portfolio

15

State Street Corp

2,349,815 shares

0.01%

% of Portfolio

16

Ken Griffin - Citadel Advisors

96,424 shares

NaN%

% of Portfolio

17

David Solomon - Goldman Sachs

455,054 shares

NaN%

% of Portfolio

18

Geode Capital Management

887,033 shares

NaN%

% of Portfolio

19

UBS Group

291,144 shares

NaN%

% of Portfolio

20

Larry Fink - BlackRock

2,825,410 shares

NaN%

% of Portfolio

21

Charles Schwab

288,762 shares

NaN%

% of Portfolio

22

Northern Trust Corp

268,910 shares

NaN%

% of Portfolio

23

Invesco

179,027 shares

NaN%

% of Portfolio

24

Morgan Stanley

447,541 shares

NaN%

% of Portfolio

25

Franklin Resources

89,010 shares

NaN%

% of Portfolio

26

SG Americas Securities

17,667 shares

NaN%

% of Portfolio

27

Legal & General

63,343 shares

NaN%

% of Portfolio

28

AllianceBernstein (AB)

32,050 shares

NaN%

% of Portfolio

29

Janus Henderson Group

13,400 shares

NaN%

% of Portfolio

30

Voya Investment Mgmt

5,381 shares

NaN%

% of Portfolio

31

T. Rowe Price

22,659 shares

NaN%

% of Portfolio

32

Ensign Peak Advisors

450 shares

NaN%

% of Portfolio

33

PNC Financial Services

255 shares

NaN%

% of Portfolio

34

Chuck Royce - Royce & Associates

363,383 shares

0.24%

% of Portfolio

35

Mario Gabelli - GAMCO Investors

26,798 shares

0.02%

% of Portfolio

36

Paul Tudor Jones - Tudor Investment Corp

58,966 shares

0.01%

% of Portfolio

37

Exoduspoint Capital Management, Lp

13,609 shares

0.01%

% of Portfolio

38

John P. Calamos, Sr. - Calamos Advisors LLC

21,514 shares

0.01%

% of Portfolio

39

Polen Capital Management

42,410 shares

0.02%

% of Portfolio

40

Joel Greenblatt - Gotham Asset Management

23,277 shares

NaN%

% of Portfolio

41

Jefferies Group

3,712 shares

NaN%

% of Portfolio

42

Nomura Holdings INC

3,519 shares

NaN%

% of Portfolio

43

New York State Teachers Retirement System

0 shares

0.00%

% of Portfolio

44

Verition Fund Management LLC

0 shares

0.00%

% of Portfolio

45

Private Capital Management

322,543 shares

2.14%

% of Portfolio

46

Jamie Dimon - JPMorgan Chase

0 shares

0.00%

% of Portfolio

47

325 Capital

0 shares

0.00%

% of Portfolio

Institutional InsightPRO

Scale Distribution

MEGA

25%

LARGE

40%

MEDIUM

15%

SMALL

20%

Geographic Distribution

North America
55%
Europe
15%
Asia Pacific
8%
Other
5%

Institutional Activity

Buyers

30

Sellers

35

Holders

80

New

8

Exited

5

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Insider TradingPRO

Trading Statistics

Insider Buyers

8

Insider Sellers

35

Purchase Value

$23.1M

Role Distribution

CEO
20%
CFO
15%
Director
30%
VP
12%
Other
5%
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RatingPRO

85

A

Overall Score

Strong institutional support with positive momentum

Rating Dimensions

Institutional Ownership
80
Recent Activity
60
Concentration
60
Momentum
65
Stability
72

Recent Actions

New

5

Increased

15

Decreased

8

Exited

2

Total

30

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