Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

AdvanSix Inc.

CIK 0001673985ASIX· quarter ending 2026-06-30
Shares outstanding
27,001,186
Held by 13F filers
24,897,651
92.2% of shares outstanding
Holders
257
-10 vs 2026-03-31 · 26 new, 36 exited
Value
$498.3M
shares +4.9% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-07, as of 2026-07-31)

ClassListedShares outstandingHeld by 13F filers% of classHoldersCUSIP
Common stockASIX · NYSE27,001,18624,897,65192.2%25700773T101

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine
CountCUSIPClass (as filers write it)HoldersShares heldClass shares% of classValueOptionsMapped via
00773T101COM25724,897,65127,001,18692.2%$498.3M2 call / 1 put13DGholders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (250 of 257 · 00773T101)

change vs 2026-03-31
#FilerShares% of classValueChange
1BlackRock, Inc.2,440,4809.04%$48.5M+156,545 (+6.9%)
2CastleKnight Management LP1,590,3185.89%$31.6M+958,537 (+151.7%)
3DIMENSIONAL FUND ADVISORS LP1,407,3495.21%$28.0M+96,343 (+7.3%)
4AMERICAN CENTURY COMPANIES INC1,363,3465.05%$27.1M+236,709 (+21.0%)
5AEGIS FINANCIAL CORP1,209,6294.48%$24.0M—
6VANGUARD CAPITAL MANAGEMENT LLC1,151,3554.26%$22.9M+27,898 (+2.5%)
7ALLIANCEBERNSTEIN L.P.863,8973.20%$21.1M-7,079 (-0.8%)
8AQR CAPITAL MANAGEMENT LLC700,0572.59%$13.9M+61,486 (+9.6%)
9GEODE CAPITAL MANAGEMENT, LLC692,5162.56%$13.8M+40,268 (+6.2%)
10ARROWSTREET CAPITAL, LIMITED PARTNERSHIP664,9442.46%$13.2M-63,348 (-8.7%)
11FMR LLC658,3192.44%$13.1M+50,030 (+8.2%)
12CHARLES SCHWAB INVESTMENT MANAGEMENT INC611,2772.26%$12.2M-85,085 (-12.2%)
13STATE STREET CORP587,6602.18%$11.7M+21,019 (+3.7%)
14Solas Capital Management, LLC571,3242.12%$11.4M+54,295 (+10.5%)
15GOLDMAN SACHS GROUP INC553,5252.05%$11.0M+63,143 (+12.9%)
16LSV ASSET MANAGEMENT548,7792.03%$10.9M-1,900 (-0.3%)
17TWO SIGMA INVESTMENTS, LP548,5162.03%$10.9M-64,178 (-10.5%)
18ACADIAN ASSET MANAGEMENT LLC520,8861.93%$10.3M+299,487 (+135.3%)
19MORGAN STANLEY482,5201.79%$9.6M+80,179 (+19.9%)
20VANGUARD PORTFOLIO MANAGEMENT LLC350,6551.30%$7.0M+64,306 (+22.5%)
21Empowered Funds, LLC302,6871.12%$6.0M+201,951 (+200.5%)
22NORTHERN TRUST CORP255,2760.95%$5.1M+15,934 (+6.7%)
23TOWLE & CO249,0910.92%$5.0M+234,976 (+1664.7%)
24UBS Group AG240,4800.89%$4.8M-25,325 (-9.5%)
25Qube Research & Technologies Ltd237,7890.88%$4.7M-43,786 (-15.6%)
26JACOBS LEVY EQUITY MANAGEMENT, INC236,2880.88%$4.7M+37,992 (+19.2%)
27Russell Investments Group, Ltd.234,6770.87%$4.7M-95,202 (-28.9%)
28TUDOR INVESTMENT CORP ET AL224,8860.83%$4.5M+81,808 (+57.2%)
29DONALD SMITH & CO., INC.212,6800.79%$4.2M-15,300 (-6.7%)
30CITADEL ADVISORS LLC212,0370.79%$4.2M-9,827 (-4.4%)
31MILLENNIUM MANAGEMENT LLC205,6100.76%$4.1M+7,476 (+3.8%)
32D. E. Shaw & Co., Inc.195,2440.72%$3.9M-34,386 (-15.0%)
33VANGUARD FIDUCIARY TRUST CO178,7360.66%$3.6M+2,160 (+1.2%)
34Mudita Advisors LLP170,4900.63%$3.4M+87,683 (+105.9%)
35BRIDGEWAY CAPITAL MANAGEMENT, LLC170,2120.63%$3.4M+7,776 (+4.8%)
36Creative Planning148,8910.55%$3.0M+1,035 (+0.7%)
37BANK OF AMERICA CORP /DE/147,0020.54%$2.9M+2,688 (+1.9%)
38Lumbard & Kellner, LLC146,2120.54%$2.9M+518 (+0.4%)
39Nuveen, LLC144,7500.54%$2.9M+89,648 (+162.7%)
40DEPRINCE RACE & ZOLLO INC140,9330.52%$2.8M-134,549 (-48.8%)
41Core Capital Management & Research, inc.139,1140.52%$2.4MNEW
42CenterBook Partners LP136,6840.51%$2.7M-91,517 (-40.1%)
43VICTORY CAPITAL MANAGEMENT INC132,4020.49%$2.6M-8,353 (-5.9%)
44Invenomic Capital Management LP128,0430.47%$2.5M-185,506 (-59.2%)
45JPMORGAN CHASE & CO124,5740.46%$2.5M+65,610 (+111.3%)
46Ballast Asset Management, LP116,0480.43%$2.3M-1,076 (-0.9%)
47NORGES BANK113,3000.42%$2.3MNEW
48SEI INVESTMENTS CO110,7870.41%$2.2M+29,326 (+36.0%)
49FRANKLIN RESOURCES INC102,5230.38%$2.0M-71,801 (-41.2%)
50Bank of New York Mellon Corp96,2630.36%$1.9M+3,320 (+3.6%)
51UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC95,8730.36%$1.9M+94,950 (+10287.1%)
52Vanguard Global Advisers, LLC94,3850.35%$1.9M-2,135 (-2.2%)
53Universal- Beteiligungs- und Servicegesellschaft mbH91,0600.34%$1.8M—
54Trexquant Investment LP89,7910.33%$1.8M+29,328 (+48.5%)
55Squarepoint Ops LLC82,2460.30%$1.6M+45,775 (+125.5%)
56JANE STREET GROUP, LLC79,8890.30%$1.6M-325,466 (-80.3%)
57Waterfront Wealth Inc.74,2040.27%$1.5M-17,701 (-19.3%)
58Quantinno Capital Management LP73,6320.27%$1.5M+34,069 (+86.1%)
59ExodusPoint Capital Management, LP68,2090.25%$1.4M+18,101 (+36.1%)
60Numerai GP LLC67,0400.25%$1.3MNEW
61Fruth Investment Management61,1510.23%$1.2M-525 (-0.9%)
62Invesco Ltd.57,5870.21%$1.1M-9,140 (-13.7%)
63IEQ CAPITAL, LLC53,4820.20%$1.1M+9,362 (+21.2%)
64Fisher Asset Management, LLC50,1610.19%$997K-100 (-0.2%)
65PDT Partners, LLC42,1680.16%$838K—
66Mutual Advisors, LLC41,5010.15%$825KNEW
67Mariner, LLC41,0390.15%$816K+12,408 (+43.3%)
68RHUMBLINE ADVISERS37,7310.14%$750K+1,087 (+3.0%)
69Inspire Investing, LLC34,7370.13%$691K+13,375 (+62.6%)
70Corient Private Wealth LP31,8770.12%$634KNEW
71MARTINGALE ASSET MANAGEMENT L P31,4330.12%$625K-7,900 (-20.1%)
72SummerHaven Investment Management, LLC31,3810.12%$624K—
73AMERIPRISE FINANCIAL INC31,3790.12%$624K+17,197 (+121.3%)
74CANADA PENSION PLAN INVESTMENT BOARD30,8000.11%$612K-400 (-1.3%)
75Engineers Gate Manager LP29,6170.11%$589K-8,775 (-22.9%)
76Y-Intercept (Hong Kong) Ltd29,4140.11%$585K-17,888 (-37.8%)
77FOX RUN MANAGEMENT, L.L.C.28,5660.11%$568KNEW
78STIFEL FINANCIAL CORP27,9410.10%$555K-4,225 (-13.1%)
79WEALTH ENHANCEMENT ADVISORY SERVICES, LLC27,6320.10%$317K+5,991 (+27.7%)
80DEUTSCHE BANK AG\27,1960.10%$541K+5,356 (+24.5%)
81Jain Global LLC26,6730.10%$530KNEW
82MERCER GLOBAL ADVISORS INC /ADV25,1490.09%$500K+7,714 (+44.2%)
83Verity Asset Management, Inc.24,2110.09%$481K+2,491 (+11.5%)
84WELLS FARGO & COMPANY/MN24,1530.09%$480K+12,770 (+112.2%)
85COMPASS FINANCIAL MANAGEMENT LLC23,0540.09%$458KNEW
86Campbell & CO Investment Adviser LLC21,3850.08%$425K+12,523 (+141.3%)
87PRICE T ROWE ASSOCIATES INC /MD/21,1430.08%$421K+810 (+4.0%)
88Verdence Capital Advisors LLC20,3560.08%$405K-725 (-3.4%)
89SUSQUEHANNA INTERNATIONAL GROUP, LLP19,2440.07%$383K-95,724 (-83.3%)
90SHEETS SMITH WEALTH MANAGEMENT18,3140.07%$364K+415 (+2.3%)
91US BANCORP \DE\17,4430.06%$347K-28 (-0.2%)
92PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO15,9570.06%$317K+9,483 (+146.5%)
93nVerses Capital, LLC15,8210.06%$315KNEW
94MetLife Investment Management, LLC15,4570.06%$307K—
95CITIGROUP INC15,2730.06%$304K+10,929 (+251.6%)
96XTX Topco Ltd15,0160.06%$299K-33,247 (-68.9%)
97STRS OHIO14,8000.05%$294KNEW
98BNP PARIBAS FINANCIAL MARKETS14,4320.05%$287K-453 (-3.0%)
99South Dakota Investment Council13,9250.05%$277K-600 (-4.1%)
100Cerity Partners LLC13,5380.05%$269K+2,892 (+27.2%)
101MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.12,3610.05%$246K+29 (+0.2%)
102NorthCrest Asset Manangement, LLC12,1800.05%$243K+879 (+7.8%)
103Odyssean, LLC12,0610.04%$240KNEW
104ALGERT GLOBAL LLC11,6800.04%$232K-6,049 (-34.1%)
105Vanguard Personalized Indexing Management, LLC10,7630.04%$214K+2,419 (+29.0%)
106LPL Financial LLC10,6870.04%$212K-180 (-1.7%)
107CV Advisors LLC10,6750.04%$212KNEW
108Brevan Howard Capital Management LP10,4040.04%$207K-27,409 (-72.5%)
109BOOTHBAY FUND MANAGEMENT, LLC10,2590.04%$204KNEW
110NEW YORK STATE COMMON RETIREMENT FUND7,5200.03%$149K—
111Police & Firemen's Retirement System of New Jersey7,2470.03%$144K—
112NISA INVESTMENT ADVISORS, LLC7,2400.03%$144K-425 (-5.5%)
113PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO5,5410.02%$110K—
114Parallel Advisors, LLC5,5200.02%$110K—
115SG Americas Securities, LLC5,3310.02%$106K-36,685 (-87.3%)
116Eurizon Capital SGR S.p.A.4,3490.02%$86K—
117BARCLAYS PLC4,3090.02%$86K-5,000 (-53.7%)
118Arax Advisory Partners3,4720.01%$69K+3,036 (+696.3%)
119SIMPLEX TRADING, LLC3,1860.01%$63K-21,486 (-87.1%)
120Legal & General Group Plc2,6340.01%$52K-1,855 (-41.3%)
121ROYAL BANK OF CANADA2,3690.01%$47K+1,506 (+174.5%)
122Ameritas Investment Partners, Inc.2,1950.01%$44K—
123HANTZ FINANCIAL SERVICES, INC.2,1080.01%$42K—
124Allworth Financial LP2,0080.01%$40K+857 (+74.5%)
125Tower Research Capital LLC (TRC)1,9780.01%$39K-2,132 (-51.9%)
126Versant Capital Management, Inc1,8520.01%$37K+36 (+2.0%)
127PNC Financial Services Group, Inc.1,7640.01%$35K-12 (-0.7%)
128State of Alaska, Department of Revenue1,1110.00%$22K—
129OSAIC HOLDINGS, INC.1,0580.00%$21K-10,923 (-91.2%)
130Quantbot Technologies LP1,0570.00%$21KNEW
131GROUP ONE TRADING LLC9620.00%$19K-1,538 (-61.5%)
132State of Wyoming8760.00%$17K-11,671 (-93.0%)
133IFP Advisors, Inc8630.00%$17K+759 (+729.8%)
134Optiver Holding B.V.8310.00%$17K+290 (+53.6%)
135Essential Partners LLC6470.00%$13K+198 (+44.1%)
136Farther Finance Advisors, LLC6330.00%$13K+104 (+19.7%)
137Sterling Capital Management LLC5410.00%$11K-329 (-37.8%)
138SIGNATUREFD, LLC4560.00%$9K+189 (+70.8%)
139EverSource Wealth Advisors, LLC4420.00%$9K+66 (+17.6%)
140Tradewinds Capital Management, LLC4000.00%$8K—
141ROTHSCHILD INVESTMENT LLC3980.00%$8K+39 (+10.9%)
142CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM3680.00%$7K-1,053 (-74.1%)
143HARBOR CAPITAL ADVISORS, INC.3670.00%$7K-24 (-6.1%)
144Estabrook Capital Management3450.00%$7K—
145HARBOUR INVESTMENTS, INC.3350.00%$7K-3 (-0.9%)
146Asset Planning,Inc3330.00%$7K+2 (+0.6%)
147Markowski Investments3000.00%$6KNEW
148BESSEMER GROUP INC2220.00%$4K+115 (+107.5%)
149Steward Partners Investment Advisory, LLC2210.00%$4K+145 (+190.8%)
150CALDWELL SUTTER CAPITAL, INC.2000.00%$4K—
151Hilltop National Bank1780.00%$4K—
152WHITTIER TRUST CO1560.00%$3K+3 (+2.0%)
153Parkside Financial Bank & Trust1540.00%$3K—
154JONES FINANCIAL COMPANIES LLLP1500.00%$3K+14 (+10.3%)
155McMillan Office, Inc.1280.00%$3K—
156Atlantic Union Bankshares Corp1210.00%$2K—
157Clearstead Advisors, LLC1210.00%$2K+97 (+404.2%)
158Basecamp Wealth Advisors LLC1060.00%$2K+12 (+12.8%)
159BIRCHBROOK, INC.1050.00%$2K—
160Smithfield Trust Co1040.00%$2K—
161FIFTH THIRD BANCORP1020.00%$2K-166 (-61.9%)
162Key Financial Inc970.00%$2K—
163Triumph Capital Management900.00%$2K—
164BROWN, LISLE/CUMMINGS, INC.880.00%$2K—
165Wealth Enhancement Trust Services, Inc.820.00%$2KNEW
166CoreCap Advisors, LLC750.00%$1K+1 (+1.4%)
167SJS Investment Consulting Inc.710.00%$1K+7 (+10.9%)
168Smartleaf Asset Management LLC670.00%$1K—
169DT Investment Partners, LLC590.00%$1K—
170St. Johns Investment Management Company, LLC580.00%$1K—
171UMB Bank, n.a.540.00%$1K—
172ARMSTRONG ADVISORY GROUP, INC530.00%$1K—
173CREATIVE FINANCIAL DESIGNS INC /ADV520.00%$1K—
174WEBSTER BANK, N. A.510.00%$1K—
175MassMutual Private Wealth & Trust, FSB480.00%$954—
176HIGHLINE WEALTH PARTNERS LLC450.00%$895NEW
177TD Waterhouse Canada Inc.440.00%$873—
178TD PRIVATE CLIENT WEALTH LLC420.00%$835—
179Grove Bank & Trust410.00%$815—
180THOMPSON INVESTMENT MANAGEMENT, INC.400.00%$795—
181EASTERN BANK400.00%$795—
182Silver Grove Financial Group, Inc.370.00%$736NEW
183HUNTINGTON NATIONAL BANK330.00%$656—
184FIDUCIARY FINANCIAL ADVISORS290.00%$577NEW
185Rossby Financial, LCC290.00%$577—
186NATIONAL BANK OF CANADA /FI/270.00%$534-14 (-34.1%)
187True Wealth Design, LLC250.00%$497+13 (+108.3%)
188BOYD WATTERSON ASSET MANAGEMENT LLC/OH250.00%$497—
189Compagnie Lombard Odier SCmA250.00%$497—
190PFS Partners, LLC240.00%$486—
191Colonial Trust Co / SC240.00%$477—
192FINANCIAL CONSULATE, INC230.00%$458—
193GAMMA Investing LLC230.00%$457-31 (-57.4%)
194Glen Eagle Advisors, LLC220.00%$437NEW
195KELLEHER FINANCIAL ADVISORS220.00%$438+4 (+22.2%)
196First Command Advisory Services, Inc.210.00%$417—
197Nemes Rush Group LLC200.00%$398—
198Covestor Ltd190.00%$0-40 (-67.8%)
199ASSETMARK, INC190.00%$378+8 (+72.7%)
200HAZLETT, BURT & WATSON, INC.190.00%$0—
201TRUST CO OF TOLEDO NA /OH/160.00%$318—
202Bell Investment Advisors, Inc160.00%$319—
203ESL Trust Services, LLC150.00%$298—
204Prestige Wealth Management Group LLC150.00%$299—
205Capital Advisors, Ltd. LLC150.00%$0—
206Ankerstar Wealth, LLC150.00%$298—
207Rockefeller Capital Management L.P.140.00%$292—
208JPL Wealth Management, LLC120.00%$239+1 (+9.1%)
209Game Plan Financial Advisors, LLC120.00%$239—
210Financial Perspectives, Inc110.00%$219—
211IFG Advisory, LLC110.00%$221NEW
212Westfuller Advisors, LLC110.00%$221—
213MATHER GROUP, LLC.100.00%$199—
214NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO100.00%$203—
215MARK SHEPTOFF FINANCIAL PLANNING, LLC100.00%$199—
216Financial Management Professionals, Inc.100.00%$199NEW
217NewEdge Advisors, LLC90.00%$179—
218North Star Investment Management Corp.90.00%$181—
219FIRST HORIZON CORP80.00%$159—
220Federation des caisses Desjardins du Quebec80.00%$159—
221NFSG Corp80.00%$159—
222Cullen/Frost Bankers, Inc.80.00%$159—
223Cape Investment Advisory, Inc.70.00%$139NEW
224Sachetta, LLC70.00%$146—
225GILPIN WEALTH MANAGEMENT, LLC70.00%$140—
226HORIZON FINANCIAL SERVICES, LLC60.00%$119—
227Ares Financial Consulting, LLC60.00%$119—
228HOLLENCREST CAPITAL MANAGEMENT60.00%$119—
229Medallion Wealth Advisors, LLC60.00%$119—
230Global Retirement Partners, LLC60.00%$119NEW
231Manchester Capital Management LLC60.00%$120—
232SBI Securities Co., Ltd.50.00%$99-881 (-99.4%)
233Pinnacle Bancorp, Inc.50.00%$99-15 (-75.0%)
234Physician Wealth Advisors, Inc.50.00%$100-26 (-83.9%)
235West Branch Capital LLC40.00%$80—
236Downshift Financial, LLC40.00%$80NEW
237Quent Capital, LLC40.00%$80—
238PRIVATE TRUST CO NA40.00%$80—
239ST GERMAIN D J CO INC40.00%$80—
240MTM Investment Management, LLC40.00%$80—
241Fortis Group Advisors, LLC40.00%$80—
242Larson Financial Group LLC30.00%$60—
243Pinnacle Wealth Planning Services, Inc.30.00%$60—
244Marshall & Sterling Wealth Advisors Inc.20.00%$44—
245Napier Financial, LLC20.00%$40—
246CHILTON CAPITAL MANAGEMENT LLC20.00%$40—
247Elevated Capital Advisors, LLC20.00%$40—
248PENSION & WEALTH MANAGEMENT ADVISORS, INC.20.00%$40—
249DELTA ASSET MANAGEMENT LLC/TN10.00%$20—
250Centerpoint Advisors, LLC10.00%$0NEW
Exited since 2026-03-31 (36 filers; largest 25 shown)
Lloyd Harbor Capital Management, LLC−290,000
Point72 Asset Management, L.P.−206,889
HRT FINANCIAL LP−122,360
Walnut Level Capital LLC−100,000
Balyasny Asset Management L.P.−94,980
First Eagle Investment Management, LLC−82,460
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND−55,872
HSBC HOLDINGS PLC−26,088
Ancora Advisors LLC−25,248
Jump Financial, LLC−22,716
THOMPSON SIEGEL & WALMSLEY LLC−21,849
Lighthouse Investment Partners, LLC−20,000
CAXTON ASSOCIATES LLP−17,861
CWM, LLC−16,838
INFRASTRUCTURE CAPITAL ADVISORS, LLC−14,748
BOKF, NA−14,690
Brooklyn Investment Group−13,048
Polymer Capital Management (US) LLC−12,923
EntryPoint Capital, LLC−12,774
MIRABELLA FINANCIAL SERVICES LLP−11,395
Quadrature Capital Ltd−11,000
Linden Thomas Advisory Services, LLC−9,516
CFG Wealth Management Services, Inc.−2,497
QUADRANT CAPITAL GROUP LLC−1,180
MAI Capital Management−1,009

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting personFormFiledEventShares% of class
American Century Companies, Inc.SCHEDULE 13G2026-08-142026-06-301,363,3465.1%
American Century Investment Management, Inc.SCHEDULE 13G2026-08-142026-06-301,363,3465.1%
Stowers Institute for Medical ResearchSCHEDULE 13G2026-08-142026-06-301,363,3465.1%
Dimensional Fund Advisors LPSCHEDULE 13G2026-07-142026-06-301,407,3495.2%
CastleKnight Management LPSCHEDULE 13G2026-05-142026-05-071,666,3826.2%
CastleKnight Management GP LLCSCHEDULE 13G2026-05-142026-05-071,666,3826.2%
Aaron WeitmanSCHEDULE 13G2026-05-142026-05-071,666,3826.2%
CastleKnight Master Fund LPSCHEDULE 13G2026-05-142026-05-071,666,3826.2%
CastleKnight Fund GP LLCSCHEDULE 13G2026-05-142026-05-071,666,3826.2%
Weitman Capital LLCSCHEDULE 13G2026-05-142026-05-071,666,3826.2%
BlackRock, Inc.SCHEDULE 13G/A2026-04-242026-03-311,919,0017.1%
The Vanguard GroupSCHEDULE 13G/A2026-03-262026-03-1300%
Victory Capital Management, Inc.SCHEDULE 13G/A2026-02-112025-09-30137,6200.51%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.