13F institutional ownership facts

Institutions tracked

50

Reported value

$38,564,537.00

Reported shares

275,934

Latest filing period

Q2 2026

Top institutional holders

  1. Dmitry Balyasny - Balyasny Asset Management · $68,711,047 · 0.09%
  2. Israel Englander - Millennium Management · $220,962,796 · 0.08%
  3. PSP Investments · $28,195,602 · 0.07%
  4. Artisan Partners · $43,223,016 · 0.07%
  5. Renaissance Technologies · $20,571,554 · 0.03%
  6. Neuberger Berman · $42,033,100 · 0.03%

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.

$GKOS

Institutional Holdings

50

Top Institutions

Top Institutions

1

Dmitry Balyasny - Balyasny Asset Management

491,636 shares

0.09%

% of Portfolio

2

Israel Englander - Millennium Management

1,581,016 shares

0.08%

% of Portfolio

3

PSP Investments

201,743 shares

0.07%

% of Portfolio

4

Artisan Partners

309,266 shares

0.07%

% of Portfolio

5

Renaissance Technologies

147,192 shares

0.03%

% of Portfolio

6

Neuberger Berman

300,752 shares

0.03%

% of Portfolio

7

Ken Griffin - Citadel Advisors

1,390,017 shares

0.02%

% of Portfolio

8

Larry Fink - BlackRock

9,540,056 shares

0.02%

% of Portfolio

9

Steve Cohen - Point72 Asset Management

138,300 shares

0.02%

% of Portfolio

10

Two Sigma Investments

63,430 shares

0.01%

% of Portfolio

11

Charles Schwab

752,642 shares

0.01%

% of Portfolio

12

David Solomon - Goldman Sachs

897,021 shares

0.01%

% of Portfolio

13

Geode Capital Management

1,463,448 shares

0.01%

% of Portfolio

14

Northern Trust Corp

612,496 shares

0.01%

% of Portfolio

15

Nuveen

322,624 shares

0.01%

% of Portfolio

16

State Street Corp

2,315,568 shares

0.01%

% of Portfolio

17

UBS Group

578,271 shares

0.01%

% of Portfolio

18

Jennison Associates

491,498 shares

0.04%

% of Portfolio

19

Capital World Investors

1,015,943 shares

0.02%

% of Portfolio

20

WCM Investment Management

93,267 shares

0.02%

% of Portfolio

21

CalPERS

70,669 shares

0.01%

% of Portfolio

22

Canada Pension Plan Investment Board

87,500 shares

0.01%

% of Portfolio

23

Invesco

706,877 shares

0.01%

% of Portfolio

24

New York State Teachers Retirement System - New York State Teachers Retirement System

48,243 shares

0.01%

% of Portfolio

25

T. Rowe Price

679,632 shares

0.01%

% of Portfolio

26

Wellington Management

428,215 shares

0.01%

% of Portfolio

27

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

57,184 shares

NaN%

% of Portfolio

28

Legal & General

165,836 shares

NaN%

% of Portfolio

29

Lazard Asset Management

22,152 shares

NaN%

% of Portfolio

30

Morgan Stanley

589,793 shares

NaN%

% of Portfolio

31

PNC Financial Services

34,229 shares

NaN%

% of Portfolio

32

Voya Investment Mgmt

16,927 shares

NaN%

% of Portfolio

33

Jamie Dimon - JPMorgan Chase

172,186 shares

NaN%

% of Portfolio

34

BNP Paribas

18,050 shares

NaN%

% of Portfolio

35

SG Americas Securities

16,625 shares

NaN%

% of Portfolio

36

Franklin Resources

33,191 shares

NaN%

% of Portfolio

37

Cliff Asness - AQR Capital Management

16,401 shares

NaN%

% of Portfolio

38

Amundi

22,118 shares

NaN%

% of Portfolio

39

Ensign Peak Advisors

3,321 shares

NaN%

% of Portfolio

40

Jane Street Group

2,531 shares

NaN%

% of Portfolio

41

Jan van Eck - VanEck

2,552 shares

NaN%

% of Portfolio

42

Mitsubishi Ufj Asset Management Co., Ltd.

128 shares

NaN%

% of Portfolio

43

Capital International Investors

0 shares

0.00%

% of Portfolio

44

Segall Bryant & Hamill, LLC

168,445 shares

0.28%

% of Portfolio

45

Scott Brayman - Champlain Invest Partners

275,171 shares

0.99%

% of Portfolio

46

Lord, Abbett & Co. LLC

420,466 shares

0.17%

% of Portfolio

47

Verition Fund Management LLC

46,323 shares

0.03%

% of Portfolio

48

Jefferies Group

7,856 shares

0.01%

% of Portfolio

49

Polen Capital Management

4,818 shares

0.01%

% of Portfolio

50

Mario Gabelli - GAMCO Investors

3,238 shares

NaN%

% of Portfolio

Institutional InsightPRO

Scale Distribution

MEGA

33%

LARGE

31%

MEDIUM

19%

SMALL

17%

Geographic Distribution

North America
63%
Europe
16%
Asia Pacific
8%
Other
5%

Institutional Activity

Buyers

38

Sellers

26

Holders

64

New

10

Exited

9

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Insider TradingPRO

Trading Statistics

Insider Buyers

16

Insider Sellers

26

Purchase Value

$25.7M

Role Distribution

CEO
28%
CFO
15%
Director
30%
VP
12%
Other
5%
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RatingPRO

93

A+

Overall Score

Strong institutional support with positive momentum

Rating Dimensions

Institutional Ownership
88
Recent Activity
76
Concentration
84
Momentum
67
Stability
80

Recent Actions

New

13

Increased

31

Decreased

17

Exited

4

Total

40

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