13F institutional ownership facts

Institutions tracked

50

Reported value

$91,768,469.00

Reported shares

515,930

Latest filing period

Q1 2026

Top institutional holders

  1. Dmitry Balyasny - Balyasny Asset Management · $137,135,280 · 0.18%
  2. SG Americas Securities · $92,995,000 · 0.1%
  3. Renaissance Technologies · $42,599,865 · 0.07%
  4. Cliff Asness - AQR Capital Management · $147,399,452 · 0.07%
  5. Israel Englander - Millennium Management · $175,887,283 · 0.07%
  6. Fidelity International (FIL) · $85,733,340 · 0.07%

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.

$MASI

Institutional Holdings

50

Top Institutions

Top Institutions

1

Dmitry Balyasny - Balyasny Asset Management

770,986 shares

0.18%

% of Portfolio

2

SG Americas Securities

522,824 shares

0.10%

% of Portfolio

3

Renaissance Technologies

239,500 shares

0.07%

% of Portfolio

4

Cliff Asness - AQR Capital Management

831,966 shares

0.07%

% of Portfolio

5

Israel Englander - Millennium Management

988,853 shares

0.07%

% of Portfolio

6

Fidelity International (FIL)

482,000 shares

0.07%

% of Portfolio

7

Jeremy Grantham - GMO

137,617 shares

0.06%

% of Portfolio

8

Neuberger Berman

403,309 shares

0.05%

% of Portfolio

9

AllianceBernstein (AB)

455,354 shares

0.02%

% of Portfolio

10

David Solomon - Goldman Sachs

984,192 shares

0.02%

% of Portfolio

11

Charles Schwab

386,898 shares

0.01%

% of Portfolio

12

Geode Capital Management

956,736 shares

0.01%

% of Portfolio

13

Ken Griffin - Citadel Advisors

281,366 shares

0.01%

% of Portfolio

14

Larry Fink - BlackRock

4,644,578 shares

0.01%

% of Portfolio

15

Morgan Stanley

752,417 shares

0.01%

% of Portfolio

16

Northern Trust Corp

390,437 shares

0.01%

% of Portfolio

17

State Street Corp

1,437,724 shares

0.01%

% of Portfolio

18

UBS Group

468,257 shares

0.01%

% of Portfolio

19

Canada Pension Plan Investment Board

209,500 shares

0.02%

% of Portfolio

20

CalPERS

77,397 shares

0.01%

% of Portfolio

21

New York State Teachers Retirement System

38,569 shares

0.01%

% of Portfolio

22

Nuveen

111,542 shares

0.01%

% of Portfolio

23

Mike Hankin - Brown Advisory INC

14,734 shares

NaN%

% of Portfolio

24

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

19,789 shares

NaN%

% of Portfolio

25

Legal & General

62,545 shares

NaN%

% of Portfolio

26

Invesco

69,144 shares

NaN%

% of Portfolio

27

Janus Henderson Group

20,000 shares

NaN%

% of Portfolio

28

BNP Paribas

10,993 shares

NaN%

% of Portfolio

29

T. Rowe Price

45,830 shares

NaN%

% of Portfolio

30

Voya Investment Mgmt

4,399 shares

NaN%

% of Portfolio

31

PNC Financial Services

5,107 shares

NaN%

% of Portfolio

32

Mitsubishi Ufj Asset Management Co., Ltd.

3,558 shares

NaN%

% of Portfolio

33

Jane Street Group

1,215 shares

NaN%

% of Portfolio

34

Franklin Resources

4,436 shares

NaN%

% of Portfolio

35

Wellington Management

0 shares

0.00%

% of Portfolio

36

George Soros - Soros Fund Management

100,838 shares

0.20%

% of Portfolio

37

Joel Greenblatt - Gotham Asset Management

341,468 shares

0.19%

% of Portfolio

38

Mario Gabelli - GAMCO Investors

92,000 shares

0.16%

% of Portfolio

39

Verition Fund Management LLC

66,853 shares

0.08%

% of Portfolio

40

Paul Tudor Jones - Tudor Investment Corp

143,884 shares

0.05%

% of Portfolio

41

Nomura Holdings INC

109,390 shares

0.05%

% of Portfolio

42

Scott Brayman - Champlain Invest Partners

141,284 shares

0.32%

% of Portfolio

43

New York Life Invest

22,191 shares

0.03%

% of Portfolio

44

Exoduspoint Capital Management, Lp

15,979 shares

0.02%

% of Portfolio

45

Natixis

25,495 shares

0.02%

% of Portfolio

46

Stephen Schwarzman - Blackstone

9,383 shares

0.01%

% of Portfolio

47

Ray Dalio - Bridgewater Associates

1,899 shares

NaN%

% of Portfolio

48

John P. Calamos, Sr. - Calamos Advisors LLC

1,511 shares

NaN%

% of Portfolio

49

Andreas Halvorsen - Viking Global Investors

0 shares

0.00%

% of Portfolio

50

Ron Baron - Baron Capital

0 shares

0.00%

% of Portfolio

Institutional InsightPRO

Scale Distribution

MEGA

43%

LARGE

31%

MEDIUM

29%

SMALL

-3%

Geographic Distribution

North America
73%
Europe
21%
Asia Pacific
14%
Other
5%

Institutional Activity

Buyers

48

Sellers

26

Holders

74

New

20

Exited

11

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Insider TradingPRO

Trading Statistics

Insider Buyers

11

Insider Sellers

26

Purchase Value

$11.4M

Role Distribution

CEO
28%
CFO
19%
Director
36%
VP
12%
Other
5%
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RatingPRO

78

B+

Overall Score

Strong institutional support with positive momentum

Rating Dimensions

Institutional Ownership
88
Recent Activity
66
Concentration
74
Momentum
77
Stability
86

Recent Actions

New

13

Increased

31

Decreased

17

Exited

2

Total

30

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