13F institutional ownership facts

Institutions tracked

20

Reported value

$16,457,754.00

Reported shares

484,194

Latest filing period

Q2 2026

Top institutional holders

  1. Renaissance Technologies · $10,236,292 · 0.01%
  2. Adage Capital Partners · $6,798,000 · 0.01%
  3. Two Sigma Investments · $6,221,462 · <0.01%%
  4. Jane Street Group · $3,687,168 · <0.01%%
  5. Israel Englander - Millennium Management · $1,391,823 · <0.01%%
  6. Ken Griffin - Citadel Advisors · $698,019 · <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.

$ARTNA

Institutional Holdings

20

Top Institutions

Top Institutions

1

Renaissance Technologies

301,156 shares

0.01%

% of Portfolio

2

Adage Capital Partners

200,000 shares

0.01%

% of Portfolio

3

Two Sigma Investments

183,038 shares

NaN%

% of Portfolio

4

Jane Street Group

108,478 shares

NaN%

% of Portfolio

5

Israel Englander - Millennium Management

40,948 shares

NaN%

% of Portfolio

6

Ken Griffin - Citadel Advisors

20,536 shares

NaN%

% of Portfolio

7

Morgan Stanley

207,593 shares

NaN%

% of Portfolio

8

David Solomon - Goldman Sachs

74,063 shares

NaN%

% of Portfolio

9

Geode Capital Management

123,700 shares

NaN%

% of Portfolio

10

UBS Group

33,334 shares

NaN%

% of Portfolio

11

BNP Paribas

7,379 shares

NaN%

% of Portfolio

12

Northern Trust Corp

30,244 shares

NaN%

% of Portfolio

13

Larry Fink - BlackRock

209,332 shares

NaN%

% of Portfolio

14

State Street Corp

70,176 shares

NaN%

% of Portfolio

15

SG Americas Securities

3,390 shares

NaN%

% of Portfolio

16

Jamie Dimon - JPMorgan Chase

28,906 shares

NaN%

% of Portfolio

17

PNC Financial Services

1,911 shares

NaN%

% of Portfolio

18

Hotchkis & Wiley

97,100 shares

0.01%

% of Portfolio

19

Exoduspoint Capital Management, Lp

0 shares

0.00%

% of Portfolio

20

Steve Cohen - Point72 Asset Management

0 shares

0.00%

% of Portfolio

Institutional InsightPRO

Scale Distribution

MEGA

39%

LARGE

38%

MEDIUM

17%

SMALL

6%

Geographic Distribution

North America
69%
Europe
23%
Asia Pacific
14%
Other
5%

Institutional Activity

Buyers

34

Sellers

33

Holders

82

New

9

Exited

7

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Insider TradingPRO

Trading Statistics

Insider Buyers

12

Insider Sellers

33

Purchase Value

$15.5M

Role Distribution

CEO
24%
CFO
19%
Director
36%
VP
12%
Other
5%
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RatingPRO

94

A+

Overall Score

Strong institutional support with positive momentum

Rating Dimensions

Institutional Ownership
79
Recent Activity
68
Concentration
87
Momentum
81
Stability
70

Recent Actions

New

9

Increased

23

Decreased

20

Exited

6

Total

50

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