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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.

Q1 2026 vs. Q4 2025

How the institutions holding AdvanSix Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of ASIX: Q4 2025 compared with Q1 2026
MeasureQ4 2025Of which not filed for Q1 2026Q1 2026Change
Holders2788266−4
Shares23.9M1.71M23.7M+1.51M (+6.8%)
Value$414.3M$29.6M$572.4M+$187.7M (+48.8%)

8 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (35)

Institutions that held AdvanSix Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to ASIX in Q1 2026
InstitutionSharesValue% of portfolio
Vanguard Capital Management LLC1,123,457$27.4M0.00%
CastleKnight Management LP631,781$15.4M0.72%
Vanguard Portfolio Management LLC286,349$6.99M0.00%
Acadian Asset Management LLC221,399$5.40M0.01%
Vanguard Fiduciary Trust Co176,576$4.31M0.00%
Walnut Level Capital LLC100,000$2.44M2.79%
Vanguard Global Advisers, LLC96,520$2.36M0.00%
Mudita Advisors LLP82,807$2.02M0.41%
Trexquant Investment LP60,463$1.48M0.01%
PDT Partners, LLC42,168$1.03M0.06%
Ancora Advisors, LLC25,248$616.1K0.01%
Simplex Trading, LLC24,672$602.0K0.02%
Verity Asset Management, Inc.21,720$530.0K0.22%
Verdence Capital Advisors LLC21,081$514.4K0.03%
Lighthouse Investment Partners, LLC20,000$488.0K0.02%
Caxton Associates LLP17,861$435.8K0.01%
Algert Global LLC17,729$432.6K0.01%
Towle & Co14,115$344.4K0.13%
Skopos Labs, Inc.13,048$318.4K0.01%
Mirabella Financial Services LLP11,395$278.0K0.03%
Quadrature Capital Ltd11,000$268.4K0.00%
Cerity Partners LLC10,646$259.8K0.00%
Linden Thomas Advisory Services, LLC9,516$232.2K0.02%
JustInvest LLC8,344$203.6K0.00%
Group One Trading, L.P.2,500$61.0K0.00%
CFG Wealth Management Services, Inc.2,497$60.9K0.06%
Wealth Preservation Advisors, LLC35$8540.00%
Golden State Equity Partners18$4390.00%
JPL Wealth Management, LLC11$2690.00%
Mather Group, LLC.10$2440.00%
Advisory Services Network, LLC7$1710.00%
Ares Financial Consulting, LLC6$1510.00%
Napier Financial, LLC2$490.00%
Delta Asset Management LLC1$240.00%
Keating Financial Advisory Services, Inc.1$240.00%

Sold out (39)

Institutions that held AdvanSix Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of ASIX in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Renaissance Technologies LLC203,800$3.53M
Two Sigma Advisers, LP192,380$3.33M
Hotchkis & Wiley Capital Management LLC145,626$2.52M
Prudential Financial Inc108,408$1.88M
Teacher Retirement System of Texas89,179$1.54M
Murphy, Middleton, Hinkle & Parker, Inc.40,568$1.11M
Swiss National Bank51,800$896.1K
Voya Investment Management LLC37,720$652.6K
Aster Capital Management (DIFC) Ltd31,113$538.3K
Quantbot Technologies LP27,978$484.0K
Los Angeles Capital Management LLC21,329$396.3K
Weiss Asset Management LP20,760$359.1K
Schonfeld Strategic Advisors LLC19,573$338.6K
Quest Partners LLC16,003$276.9K
Boothbay Fund Management, LLC15,017$259.8K
Virginia Retirement Systems Et Al14,980$259.2K
Janus Henderson Group PLC12,129$210.0K
Zurcher Kantonalbank (Zurich Cantonalbank)11,549$199.8K
Jain Global LLC11,514$199.2K
Atom Investors LP10,951$189.5K
Aigen Investment Management, LP10,803$186.9K
Intech Investment Management LLC10,265$177.6K
Inspire Advisors, LLC10,154$175.7K
Mangrove Partners10,038$173.7K
KLP Kapitalforvaltning AS5,700$98.6K
Great West Life Assurance Co3,002$52.0K
Ensign Peak Advisors, Inc1,829$31.6K
Amalgamated Bank825$14.0K
Torren Management, LLC199$3.44K
Danske Bank A/S100$1.73K
Cedar Mountain Advisors, LLC39$675
Cape Investment Advisory, Inc.24$425
Harbor Asset Planning, Inc.19$329
Flagship Harbor Advisors, LLC18$317
TCTC Holdings, LLC18$311
JNBA Financial Advisors17$295
SageView Advisory Group, LLC9$156
Laurel Wealth Advisors LLC7$122
Colonial Trust Advisors5$87

Not filed for Q1 2026 yet (8)

Institutions that held AdvanSix Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ASIX in Q4 2025 that haven't filed for Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Vanguard Group Inc1,706,709$29.5M
EMC Capital Management3,897$67.0K
Comerica Bank363$6.28K
ORG Partners LLC20$345
CIBC Private Wealth Group, LLC12$208
Global Retirement Partners, LLC6$104
Stephens Consulting, LLC3$44
Motiv8 Investments LLC1$0