13F institutional ownership facts
Institutions tracked
42
Reported value
$501,067,016.00
Reported shares
8,502,899
Latest filing period
Q1 2026
Top institutional holders
- Josef Lakonishok - Lsv Asset Management · $61,965,000 · 0.13%
- Two Sigma Investments · $20,795,230 · 0.02%
- Canada Pension Plan Investment Board · $14,560,313 · 0.01%
- Dmitry Balyasny - Balyasny Asset Management · $2,748,917 · <0.01%%
- Charles Schwab · $24,603,408 · <0.01%%
- Lazard Asset Management · $1,973,249 · <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.
$ATKR
Institutional Holdings
42
Top Institutions
Top Institutions
Josef Lakonishok - Lsv Asset Management
1,051,861 shares
0.13%
% of Portfolio
Two Sigma Investments
353,000 shares
0.02%
% of Portfolio
Canada Pension Plan Investment Board
247,162 shares
0.01%
% of Portfolio
Dmitry Balyasny - Balyasny Asset Management
46,663 shares
NaN%
% of Portfolio
Charles Schwab
417,644 shares
NaN%
% of Portfolio
Lazard Asset Management
33,496 shares
NaN%
% of Portfolio
Geode Capital Management
854,731 shares
NaN%
% of Portfolio
Jane Street Group
48,689 shares
NaN%
% of Portfolio
Nuveen
193,913 shares
NaN%
% of Portfolio
BNP Paribas
76,228 shares
NaN%
% of Portfolio
David E. Shaw - D.E. Shaw & Co.
61,270 shares
NaN%
% of Portfolio
Ken Griffin - Citadel Advisors
64,743 shares
NaN%
% of Portfolio
Larry Fink - BlackRock
2,626,791 shares
NaN%
% of Portfolio
SG Americas Securities
39,195 shares
NaN%
% of Portfolio
Northern Trust Corp
321,363 shares
NaN%
% of Portfolio
David Solomon - Goldman Sachs
276,092 shares
NaN%
% of Portfolio
Israel Englander - Millennium Management
39,226 shares
NaN%
% of Portfolio
State Street Corp
835,156 shares
NaN%
% of Portfolio
Cliff Asness - AQR Capital Management
50,926 shares
NaN%
% of Portfolio
Morgan Stanley
338,300 shares
NaN%
% of Portfolio
Invesco
94,349 shares
NaN%
% of Portfolio
UBS Group
77,232 shares
NaN%
% of Portfolio
AllianceBernstein (AB)
35,060 shares
NaN%
% of Portfolio
Janus Henderson Group
17,312 shares
NaN%
% of Portfolio
Franklin Resources
29,787 shares
NaN%
% of Portfolio
Legal & General
31,858 shares
NaN%
% of Portfolio
Voya Investment Mgmt
5,804 shares
NaN%
% of Portfolio
T. Rowe Price
38,607 shares
NaN%
% of Portfolio
Ensign Peak Advisors
1,517 shares
NaN%
% of Portfolio
PNC Financial Services
255 shares
NaN%
% of Portfolio
Mitsubishi Ufj Asset Management Co., Ltd.
22 shares
NaN%
% of Portfolio
Wellington Management
0 shares
0.00%
% of Portfolio
Adage Capital Partners
0 shares
0.00%
% of Portfolio
Jefferies Group
16,737 shares
0.01%
% of Portfolio
Hotchkis & Wiley
153,486 shares
0.03%
% of Portfolio
Mario Gabelli - GAMCO Investors
4,484 shares
NaN%
% of Portfolio
Jeremy Grantham - GMO
6,856 shares
NaN%
% of Portfolio
Joel Greenblatt - Gotham Asset Management
4,684 shares
NaN%
% of Portfolio
Exoduspoint Capital Management, Lp
0 shares
0.00%
% of Portfolio
Verition Fund Management LLC
0 shares
0.00%
% of Portfolio
Jamie Dimon - JPMorgan Chase
0 shares
0.00%
% of Portfolio
Francis Chou - Chou Associates
8,400 shares
0.24%
% of Portfolio
Institutional InsightPRO
Scale Distribution
MEGA
31%
LARGE
37%
MEDIUM
33%
SMALL
-1%
Geographic Distribution
Institutional Activity
Buyers
46
Sellers
32
Holders
78
New
12
Exited
7
Insider TradingPRO
Trading Statistics
Insider Buyers
9
Insider Sellers
32
Purchase Value
$18.8M
Role Distribution
RatingPRO
71
B
Overall Score
Strong institutional support with positive momentum
Rating Dimensions
Recent Actions
New
11
Increased
27
Decreased
11
Exited
6
Total
50