13F institutional ownership facts

Institutions tracked

50

Reported value

$695,828,279.00

Reported shares

9,266,590

Latest filing period

Q1 2026

Top institutional holders

  1. Two Sigma Investments · $439,849,362 · 0.35%
  2. Artisan Partners · $154,558,340 · 0.25%
  3. Capital World Investors · $1,590,884,448 · 0.22%
  4. Wellington Management · $479,961,465 · 0.09%
  5. Renaissance Technologies · $22,943,674 · 0.04%
  6. Franklin Resources · $118,268,500 · 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.

$IONS

Institutional Holdings

50

Top Institutions

Top Institutions

1

Two Sigma Investments

5,857,629 shares

0.35%

% of Portfolio

2

Artisan Partners

2,058,308 shares

0.25%

% of Portfolio

3

Capital World Investors

21,186,369 shares

0.22%

% of Portfolio

4

Wellington Management

6,391,816 shares

0.09%

% of Portfolio

5

Renaissance Technologies

305,549 shares

0.04%

% of Portfolio

6

Franklin Resources

1,575,023 shares

0.03%

% of Portfolio

7

Israel Englander - Millennium Management

1,051,506 shares

0.03%

% of Portfolio

8

Neuberger Berman

443,272 shares

0.03%

% of Portfolio

9

T. Rowe Price

3,025,251 shares

0.03%

% of Portfolio

10

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

429,599 shares

0.02%

% of Portfolio

11

BNP Paribas

479,460 shares

0.02%

% of Portfolio

12

Charles Schwab

1,583,266 shares

0.02%

% of Portfolio

13

Geode Capital Management

3,984,332 shares

0.02%

% of Portfolio

14

Jane Street Group

191,818 shares

0.00%

% of Portfolio

15

AllianceBernstein (AB)

400,669 shares

0.01%

% of Portfolio

16

David Solomon - Goldman Sachs

1,699,847 shares

0.01%

% of Portfolio

17

Invesco

1,277,358 shares

0.01%

% of Portfolio

18

Ken Griffin - Citadel Advisors

942,534 shares

0.01%

% of Portfolio

19

Larry Fink - BlackRock

10,442,476 shares

0.01%

% of Portfolio

20

Northern Trust Corp

868,179 shares

0.01%

% of Portfolio

21

Nuveen

648,496 shares

0.01%

% of Portfolio

22

State Street Corp

3,995,564 shares

0.01%

% of Portfolio

23

UBS Group

808,443 shares

0.01%

% of Portfolio

24

Voya Investment Mgmt

69,136 shares

0.01%

% of Portfolio

25

Adage Capital Partners

50,000 shares

0.01%

% of Portfolio

26

CalPERS

255,485 shares

0.01%

% of Portfolio

27

Ensign Peak Advisors

46,004 shares

0.01%

% of Portfolio

28

Legal & General

294,679 shares

0.01%

% of Portfolio

29

SG Americas Securities

63,295 shares

0.01%

% of Portfolio

30

Morgan Stanley

1,026,509 shares

NaN%

% of Portfolio

31

Ken Fisher - Fisher Asset Management

141,544 shares

NaN%

% of Portfolio

32

Lazard Asset Management

25,410 shares

NaN%

% of Portfolio

33

Janus Henderson Group

68,191 shares

NaN%

% of Portfolio

34

Jan van Eck - VanEck

34,505 shares

NaN%

% of Portfolio

35

Mike Hankin - Brown Advisory INC

15,105 shares

NaN%

% of Portfolio

36

Cliff Asness - AQR Capital Management

28,783 shares

NaN%

% of Portfolio

37

Canada Pension Plan Investment Board

14,100 shares

NaN%

% of Portfolio

38

Robeco Institutional Asset Management

5,660 shares

NaN%

% of Portfolio

39

PNC Financial Services

13,545 shares

NaN%

% of Portfolio

40

Mitsubishi Ufj Asset Management Co., Ltd.

2,693 shares

NaN%

% of Portfolio

41

Fidelity International (FIL)

165 shares

NaN%

% of Portfolio

42

Exoduspoint Capital Management, Lp

227,084 shares

0.14%

% of Portfolio

43

Jefferies Group

59,065 shares

0.03%

% of Portfolio

44

Joel Greenblatt - Gotham Asset Management

98,968 shares

0.02%

% of Portfolio

45

Nomura Holdings INC

114,080 shares

0.02%

% of Portfolio

46

Paul Tudor Jones - Tudor Investment Corp

48,244 shares

0.01%

% of Portfolio

47

John P. Calamos, Sr. - Calamos Advisors LLC

19,781 shares

0.01%

% of Portfolio

48

Cathie Wood - ARK Investment Management

288,716 shares

0.17%

% of Portfolio

49

Murray Stahl - Horizon Kinetics

11,428 shares

0.01%

% of Portfolio

50

Ron Baron - Baron Capital

45,000 shares

0.01%

% of Portfolio

Institutional InsightPRO

Scale Distribution

MEGA

28%

LARGE

21%

MEDIUM

24%

SMALL

27%

Geographic Distribution

North America
58%
Europe
21%
Asia Pacific
17%
Other
9%

Institutional Activity

Buyers

33

Sellers

16

Holders

89

New

20

Exited

8

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Insider TradingPRO

Trading Statistics

Insider Buyers

11

Insider Sellers

16

Purchase Value

$24.1M

Role Distribution

CEO
23%
CFO
21%
Director
39%
VP
16%
Other
5%
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RatingPRO

88

A

Overall Score

Moderate institutional interest with stable holdings

Rating Dimensions

Institutional Ownership
83
Recent Activity
66
Concentration
69
Momentum
77
Stability
87

Recent Actions

New

8

Increased

21

Decreased

17

Exited

2

Total

45

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