AdvanSix Inc. (ASIX)
NYSE: ASIX · Plastic Materials, Synth Resins & Nonvulcan Elastomers · Parsippany, NJ · filing with the SEC since 2016
Grade5.3
◀ Past 6.5● Present 4.9▶ Future 4.6
Who owns AdvanSix Inc.
As filed with the SECHolders of 5% or more
4
Blackrock, Inc. holds 7.1% of Common Stock, as its SCHEDULE 13G/A filed Apr 24, 2026 says.
Directors and officers
14
report now, of 27 people on the record since 2016. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Apr 24, 2026 · Common Stock · 11.9% in Jan 8, 2026
CastleKnight Master Fund LP
SCHEDULE 13G · filed May 14, 2026 · Common Stock, par value $0.01 per share
Dimensional Fund Advisors LP
SCHEDULE 13G · filed Jul 14, 2026 · Common Stock · 4.8% in Jan 21, 2026
American Century Investment Management, Inc.
SCHEDULE 13G · filed Aug 14, 2026 · Common Stock
Victory Capital Management, Inc.
SCHEDULE 13G/A · filed Feb 11, 2026 · Common Stock · reported falling below 5%, from 8.12% in Oct 30, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%, from 6.35% in Jan 30, 2026
What ASIX reports owning in othersstakes of 5% or more, and other ties
AdvanSix Inc. reports no stake in another company in the record.
Insider tradesForm 4
0sales
0purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Oct 8, 2025 to Oct 8, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2025 runs to Oct 8, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window
No one on the roster filed an open-market trade in the window.