$ASIX

$15.48 -$0.24 (1.5%) Live

$ASIX Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 27.0M shares outstanding

Who owns ASIX?

By type of holder

Institutions 92.1% Insiders 0.0% Everyone else 7.9%

Concentration Top 10 holders own 44.4%

BlackRock, Inc. 9.0% · CastleKnight Management LP 5.9%

Institutional ownership

92.1%

+4.4 pts vs last qtr

Institutional holders

255

-10 vs last qtr

Net shares bought

+1.2M

by institutions in Q2 2026

New / sold out

26 / 36

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

CastleKnight Management LP +958.5K
Acadian Asset Management LLC +299.5K

Biggest sellers in Q2 2026

Jane Street Group, LLC −325.5K
Lloyd Harbor Capital Management, LLC SOLD OUT −290.0K

Who is planning to sell?

Notices of proposed sale, last 12 months

$87.9K

2 notices from 1 person

Shares covered

4.0K

0.01% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Gramm Christopher Officer $87.9K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

−10.4%

−1.21% a year

Each share's claim on the business

+11.6%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$194M vs $77M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years60% 3–5 years2% 1–3 years13% Under 1 year25%

Quarterly turnover

14.3%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting ASIX on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	2.4M	9.04%	+156.5K (+6.9%)	≤2021	0.0%
Shares held by quarter Peak holding4.9M (Q4'24) Change over 8 quarters−2.2M Share of the company9.040% BlackRock, Inc.'s full portfolio →
CM CastleKnight Management LP	1.6M	5.89%	+958.5K (+151.7%)	Q1 '26	0.4%
Shares held by quarter Peak holding1.6M (Q2'26) Change over 8 quarters+1.6M Share of the company5.890% CastleKnight Management LP's full portfolio →

BlackRock, Inc.

2.4M

% of company

9.04%

Change vs last qtr

+156.5K (+6.9%)

Held since

≤2021

CastleKnight Management LP

1.6M

% of company

5.89%

Change vs last qtr

+958.5K (+151.7%)

Held since

Q1 '26

28 more super investors behind a free account

See every manager holding AdvanSix Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ASIX on Form N-PORT; together they hold 35.2% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
AU Avantis U.S. Small Cap Value ETF American Century ETF Trust	$25.1M	1.1M	4.14%	0.09%	May 31, 2026
AV Aegis Value Fund Aegis Funds	$23.4M	1.2M	4.35%	2.07%	June 30, 2026

Avantis U.S. Small Cap Value ETF

American Century ETF Trust

Position value

$25.1M

% of company

4.14%

% of the fund

0.09%

As of

May 31, 2026

Aegis Value Fund

Aegis Funds

Position value

$23.4M

% of company

4.35%

% of the fund

2.07%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding AdvanSix Inc. and how much of the fund the position is.

Comments