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AdvanSix Inc.

ASIX
Exchange
NYSE
Industry
Plastic Materials, Synth Resins & Nonvulcan Elastomers
SEC CIK
0001673985

No open-market purchases or sales by AdvanSix Inc. insiders were filed in the last 90 days; 256 institutions reported holding it in 13F filings for Q2 2026, worth $498.3M in total; no superinvestor holds it.

Q4 2025 vs. Q3 2025

How the institutions holding AdvanSix Inc. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025All holders in Q3 2025

13F holders of ASIX: Q3 2025 compared with Q4 2025
MeasureQ3 2025Of which not filed for Q4 2025Q4 2025Change
Holders2778278+9
Shares24.5M78.0K23.9M−451.0K (−1.9%)
Value$473.9M$1.51M$414.3M−$58.1M (−12.3%)

8 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (56)

Institutions that held AdvanSix Inc. at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to ASIX in Q4 2025
InstitutionSharesValue% of portfolio
Aegis Financial Corp1,209,629$20.9M4.99%
Millennium Management LLC663,537$11.5M0.01%
Renaissance Technologies LLC203,800$3.53M0.01%
Jacobs Levy Equity Management, Inc199,961$3.46M0.01%
HRT Financial LP188,538$3.26M0.01%
Y-Intercept (Hong Kong) Ltd180,089$3.12M0.07%
Point72 Asset Management, L.P.159,994$2.77M0.00%
Lumbard & Kellner, LLC145,128$2.51M0.88%
Healthcare of Ontario Pension Plan Trust Fund109,711$1.90M0.00%
Jump Financial, LLC107,200$1.85M0.02%
Ballast Asset Management, LP106,734$1.85M0.87%
Lloyd Harbor Capital Management, LLC75,000$1.30M0.70%
Murphy, Middleton, Hinkle & Parker, Inc.40,568$1.11M0.76%
Balyasny Asset Management LLC60,905$1.05M0.00%
Tudor Investment Corp Et Al56,858$983.6K0.01%
Squarepoint Ops LLC53,793$930.6K0.00%
Citadel Advisors LLC39,265$679.3K0.00%
SEI Investments Co37,861$655.0K0.00%
HSBC Holdings PLC35,119$611.8K0.00%
Aster Capital Management (DIFC) Ltd31,113$538.3K0.24%
Quantbot Technologies LP27,978$484.0K0.02%
XTX Topco Ltd25,600$442.9K0.01%
Polymer Capital Management (US) LLC22,291$385.6K0.05%
Weiss Asset Management LP20,760$359.1K0.01%
Schonfeld Strategic Advisors LLC19,573$338.6K0.00%
Canada Pension Plan Investment Board17,800$307.9K0.00%
Boothbay Fund Management, LLC15,017$259.8K0.01%
Mercer Global Advisors Inc14,212$245.9K0.00%
Brevan Howard Capital Management LP11,644$201.4K0.00%
Jain Global LLC11,514$199.2K0.00%
Atom Investors LP10,951$189.5K0.02%
Aigen Investment Management, LP10,803$186.9K0.04%
Inspire Advisors, LLC10,154$175.7K0.02%
Mangrove Partners10,038$173.7K0.01%
Eurizon Capital SGR S.p.A.4,349$76.3K0.00%
National Bank of Canada1,076$18.6K0.00%
Torren Management, LLC199$3.44K0.00%
McMillan Office, Inc.128$2.21K0.00%
Triumph Capital Management90$1.56K0.00%
Massmutual Trust Co FSB48$8300.00%
Barrow Hanley Mewhinney & Strauss LLC39$6750.00%
Cape Investment Advisory, Inc.24$4250.00%
First Command Advisory Services, Inc.21$3630.00%
Flagship Harbor Advisors, LLC18$3170.00%
Ankerstar Wealth, LLC15$2600.00%
SJS Investment Consulting Inc.12$2080.00%
SageView Advisory Group, LLC9$1560.00%
Laurel Wealth Advisors LLC7$1220.00%
Gilpin Wealth Management, LLC7$1220.00%
Colonial Trust Advisors5$870.00%
Basecamp Wealth Advisors LLC5$870.00%
Pinnacle Wealth Planning Services, Inc.3$520.00%
Larson Financial Group LLC3$520.00%
Elevated Capital Advisors, LLC2$350.00%
Pension & Wealth Management Advisors, Inc.2$350.00%
Motiv8 Investments LLC1$00.00%

Sold out (47)

Institutions that held AdvanSix Inc. at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of ASIX in Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
Wellington Management Group LLP699,716$13.6M
Principal Financial Group Inc129,563$2.51M
Public Sector Pension Investment Board104,737$2.03M
O'Shaughnessy Asset Management, LLC68,456$1.33M
Segall Bryant & Hamill, LLC53,013$1.03M
New York State Teachers Retirement System49,179$953.0K
Verition Fund Management LLC31,031$601.4K
Unison Advisors LLC30,302$587.3K
Horizon Investments, LLC27,428$531.6K
Youngs Advisory Group, Inc.26,859$520.5K
State of Tennessee, Treasury Department23,141$448.5K
Thrivent Financial for Lutherans19,366$375.0K
Oxford Asset Management LLP19,274$373.5K
Lazard Asset Management LLC18,853$365.4K
Versor Investments LP14,780$286.4K
Illinois Municipal Retirement Fund14,733$285.5K
Bailard, Inc.14,607$283.1K
Allianz Asset Management GmbH14,132$273.9K
Semanteon Capital Management, LP14,027$271.8K
Louisiana State Employees Retirement System12,300$238.4K
CastleKnight Management LP11,996$232.5K
Summit Global Investments11,769$228.0K
Keybank National Association11,610$225.0K
Cambridge Investment Research Advisors, Inc.10,606$206.0K
Teachers Retirement System of the State of Kentucky7,624$147.0K
Oregon Public Employees Retirement Fund6,002$116.3K
STRS Ohio1,000$19.4K
Salomon & Ludwin, LLC480$9.41K
Simplex Trading, LLC379$7.00K
Johnson Financial Group, Inc.360$6.98K
Quarry LP94$1.82K
Tortoise Investment Management, LLC93$1.80K
Wealthspire Advisors, LLC86$1.67K
Central Trust Co80$1.55K
Farmers & Merchants Investments Inc22$426
Glen Eagle Advisors, LLC22$426
Rialto Wealth Management, LLC21$407
Aspect Partners, LLC20$388
Atlantic Trust, LLC16$311
Mather Group, LLC.10$194
North Capital, Inc.9$174
Abound Wealth Management6$117
Affinity Wealth LLC4$78
Advisory Services Network, LLC3$58
Principal Securities, Inc.1$19
GoalVest Advisory LLC1$19
Caitong International Asset Management Co., Ltd1$19

Not filed for Q4 2025 yet (8)

Institutions that held AdvanSix Inc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ASIX in Q3 2025 that haven't filed for Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
Cubist Systematic Strategies, LLC71,780$1.39M
Point72 Asia (Singapore) Pte. Ltd.4,561$88.4K
Shell Asset Management Co826$16.0K
Point72 (DIFC) Ltd790$15.3K
FSA Wealth Management LLC12$233
AllSquare Wealth Management LLC6$116
Pineridge Advisors LLC2$40
Hemington Wealth Management5$0