ASIX AdvanSix Inc.

NYSE
$17.18

AdvanSix Inc. (ASIX) Institutional Ownership

What the institutions did with ASIX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers reporting
280
filed a 13F this quarter
Managers holding
249
-9 on the quarter
Buyers
100
22 opened new
Sellers
89
31 sold out entirely
Buyer share
52.9%
of managers who traded it
Breadth
+5.8
net buyers, as a share of those trading

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Largest holders

Manager Shares % of reported
BlackRock, Inc. 2.4M 9.9%
CastleKnight Management LP 1.6M 6.4%
DIMENSIONAL FUND ADVISORS LP 1.4M 5.7%
AMERICAN CENTURY COMPANIES INC 1.4M 5.5%
AEGIS FINANCIAL CORP 1.2M 4.9%
VANGUARD CAPITAL MANAGEMENT LLC 1.2M 4.7%
ALLIANCEBERNSTEIN L.P. 863.9K 3.5%
AQR CAPITAL MANAGEMENT LLC 700.1K 2.8%
GEODE CAPITAL MANAGEMENT, LLC 692.5K 2.8%
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 664.9K 2.7%
FMR LLC 658.3K 2.7%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 611.3K 2.5%
STATE STREET CORP 587.7K 2.4%
Solas Capital Management, LLC 571.3K 2.3%
GOLDMAN SACHS GROUP INC 553.5K 2.2%
LSV ASSET MANAGEMENT 548.8K 2.2%
TWO SIGMA INVESTMENTS, LP 548.5K 2.2%
ACADIAN ASSET MANAGEMENT LLC 520.9K 2.1%
MORGAN STANLEY 482.5K 1.9%
VANGUARD PORTFOLIO MANAGEMENT LLC 350.7K 1.4%
Empowered Funds, LLC 302.7K 1.2%
NORTHERN TRUST CORP 255.3K 1.0%
TOWLE & CO 249.1K 1.0%
UBS Group AG 240.5K 1.0%
Qube Research & Technologies Ltd 237.8K 1.0%

Largest changes

Manager Action Previous Current Change
CastleKnight Management LP Increased 631.8K 1.6M +958.5K
JANE STREET GROUP, LLC Reduced 405.4K 79.9K -325.5K
ACADIAN ASSET MANAGEMENT LLC Increased 221.4K 520.9K +299.5K
Lloyd Harbor Capital Management, LLC Sold Out 290.0K 0 -290.0K
AMERICAN CENTURY COMPANIES INC Increased 1.1M 1.4M +236.7K
TOWLE & CO Increased 14.1K 249.1K +235.0K
Point72 Asset Management, L.P. Sold Out 206.9K 0 -206.9K
Empowered Funds, LLC Increased 100.7K 302.7K +202.0K
Invenomic Capital Management LP Reduced 313.5K 128.0K -185.5K
BlackRock, Inc. Increased 2.3M 2.4M +156.5K
DEPRINCE RACE & ZOLLO INC Reduced 275.5K 140.9K -134.5K
HRT FINANCIAL LP Sold Out 122.4K 0 -122.4K
DIMENSIONAL FUND ADVISORS LP Increased 1.3M 1.4M +96.3K
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced 115.0K 19.2K -95.7K
Russell Investments Group, Ltd. Reduced 329.9K 234.7K -95.2K
Balyasny Asset Management L.P. Sold Out 95.0K 0 -95.0K
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Increased 923 95.9K +95.0K
CenterBook Partners LP Reduced 228.2K 136.7K -91.5K
Nuveen, LLC Increased 55.1K 144.8K +89.6K
Mudita Advisors LLP Increased 82.8K 170.5K +87.7K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC Reduced 696.4K 611.3K -85.1K
First Eagle Investment Management, LLC Sold Out 82.5K 0 -82.5K
TUDOR INVESTMENT CORP ET AL Increased 143.1K 224.9K +81.8K
MORGAN STANLEY Increased 402.3K 482.5K +80.2K
FRANKLIN RESOURCES INC Reduced 174.3K 102.5K -71.8K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.