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AdvanSix Inc. · 13F filings

ASIX Institutional Ownership

Holdings as of Jun 30, 2026From SEC Form 13FUpdated

Who owns AdvanSix Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 255 funds reported holding ASIX at Jun 30, 2026, together owning 91.7% of the company.

← ASIX stock page

Fund sentiment
Neutral
Strongly bearishNeutralStrongly bullish
  • ●102 buying vs 91 selling
  • ▲Held by funds +3.8 pts
  • ▼Funds holding -11
  • ▼Superinvestors: 1 added, 2 cut
  • ●Put/call not meaningful

What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.

Funds holding255−11 vs Q1 2026
Held by funds91.7%+3.8 pts
Value held$496M24.8M shares
Put/call ratio–market makers left out

Funds holding and ownership

8 quarters
Q3 2024: 280 fundsQ3 '24Q4 2024: 285 fundsQ4 '24Q1 2025: 279 fundsQ1 '25Q2 2025: 282 fundsQ2 '25Q3 2025: 277 fundsQ3 '25Q4 2025: 278 fundsQ4 '25Q1 2026: 266 fundsQ1 '26Q2 2026: 255 fundsQ2 '2691.7% owned
Funds holdingHeld by funds %

Quarter over quarter

all 13F filers
Q2 2026This quarterQ1 2026Change
Funds holding255266−4.1%
In funds' top 1012−50.0%
13F shares24.8M23.7M+4.4%
Held by funds91.7%87.9%+3.8 pts
New positions2431−22.6%
Increased7880−2.5%
Reduced5964−7.8%
Sold out3239−17.9%
Calls (shares)0385K−100.0%
Puts (shares)00–
Put/call ratio–0.00–

Buyers vs sellers

adding or new vs cutting or sold out
Q4 2024: 112 buyingQ4 2024: 100 sellingQ4 '24Q1 2025: 104 buyingQ1 2025: 107 sellingQ1 '25Q2 2025: 124 buyingQ2 2025: 93 sellingQ2 '25Q3 2025: 116 buyingQ3 2025: 113 sellingQ3 '25Q4 2025: 115 buyingQ4 2025: 128 sellingQ4 '25Q1 2026: 111 buyingQ1 2026: 103 sellingQ1 '26Q2 2026: 102 buyingQ2 2026: 91 sellingQ2 '26
Buying 102Selling 91latest quarter

Superinvestors in ASIX

All superinvestors →

Who owns ASIX

share of fund held shares
  • Index and passive funds31.7%
  • Active managers and hedge funds59.5%
  • Banks and brokers8.1%
  • Pensions, insurers and other0.7%

The top 10 holders own 48.8% of all ASIX shares that funds reported. Groups are our own grouping of filers by name.

Filed so far for Q3 2026

51 funds changed their position

🔒 Free account: see all 20.

Top holders

Q2 2026
#FundOf companySharesValueChange
1BlackRock, Inc.9.04%2.4M$48.5M+157K
2CastleKnight Management LP5.89%1.6M$31.6M+959K
3Dimensional Fund Advisors LP5.21%1.4M$28M+96K
4American Century Companies Inc5.05%1.4M$27.1M+237K
5Aegis Financial Corp4.48%1.2M$24M0
6Vanguard Capital Management LLC4.26%1.2M$22.9M+28K
7Alliancebernstein L.P.3.20%864K$21.1M−7,079
8AQR Capital Management LLC2.59%700K$13.9M+61K
9Geode Capital Management, LLC2.56%693K$13.8M+40K
10Arrowstreet Capital, Limited Partnership2.46%665K$13.2M−63K
🔒 15 more top holders. Create a free account or sign in to see them.
Biggest buyers
Biggest sellers

ASIX institutional ownership FAQ

Who owns the most ASIX stock?

In Q2 2026 13F filings the largest holder of ASIX was BlackRock, Inc., followed by CastleKnight Management LP and Dimensional Fund Advisors LP. Index fund managers are usually the biggest holders of large companies.

What percentage of ASIX is owned by institutions?

Funds that file 13F reports held 91.7% of ASIX's shares at Jun 30, 2026, compared with 87.9% a quarter earlier. That counts every manager with more than $100 million in US stocks.

Are hedge funds buying ASIX?

In Q2 2026, 102 funds bought ASIX (24 of them new positions) and 91 sold (32 sold out completely). Among well known investors, 1 added and 2 cut. Our fund sentiment for ASIX is neutral.

What is ASIX's institutional put/call ratio?

Too few option positions were reported for a meaningful ratio.

How current is this ASIX ownership data?

13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.

For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.