ADVANSIX INC (ASIX) Institutional Shareholders
ADVANSIX INC (ASIX) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $489.24M in ASIX holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of ASIX tracked by InsiderSet, reporting ownership valued at approximately $48.52M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $40.95M, representing an estimated loss of -15.59% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 50% of the total disclosed ASIX value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Castleknight Management Lp, Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in ADVANSIX INC (ASIX).
This page ranks the largest institutional ASIX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
244
Total Reported Value
$489.24M
Largest Holder
Blackrock, Inc.
Largest Position
$48.52M
Insider Transactions (90d)
9
Latest Filing Quarter
Q2 2026
New Institutional Positions
51
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 2,440,480 | $48,516,737 | $40,951,254 | -$7,565,483 | -15.59% | |
| Castleknight Management Lp | 1.15% | 1,590,318 | $31,615,522 | $26,685,536 | -$4,929,986 | -15.59% | |
| Dimensional Fund Advisors Lp | 0.01% | 1,407,349 | $27,977,774 | $23,615,316 | -$4,362,458 | -15.59% | |
| American Century Companies Inc | 0.01% | 1,363,346 | $27,103,318 | $22,876,946 | -$4,226,372 | -15.59% | |
| Aegis Financial Corp | 3.80% | 1,209,629 | $24,047,425 | $20,297,575 | -$3,749,850 | -15.59% | |
| Vanguard Capital Management Llc | 0.00% | 1,151,355 | $22,888,937 | $19,319,737 | -$3,569,200 | -15.59% | |
| Alliancebernstein L.P. | 0.01% | 863,897 | $21,079,087 | $14,496,192 | -$6,582,895 | -31.23% | |
| Aqr Capital Management Llc | 0.00% | 700,057 | $13,917,126 | $11,746,956 | -$2,170,170 | -15.59% | |
| Geode Capital Management, Llc | 0.00% | 692,516 | $13,771,117 | $11,620,418 | -$2,150,699 | -15.62% | |
| Arrowstreet Capital, Limited Partnership | 0.01% | 664,944 | $13,219,087 | $11,157,760 | -$2,061,327 | -15.59% | |
| Fmr Llc | 0.00% | 658,319 | $13,087,381 | $11,046,593 | -$2,040,788 | -15.59% | |
| Charles Schwab Investment Management Inc | 0.00% | 611,277 | $12,152,187 | $10,257,228 | -$1,894,959 | -15.59% | |
| State Street Corp | 0.00% | 587,660 | $11,682,681 | $9,860,935 | -$1,821,746 | -15.59% | |
| Solas Capital Management, Llc | 6.09% | 571,324 | $11,357,921 | $9,586,817 | -$1,771,104 | -15.59% | |
| Goldman Sachs Group Inc | 0.00% | 553,525 | $11,004,079 | $9,288,150 | -$1,715,930 | -15.59% | |
| Lsv Asset Management | 0.02% | 548,779 | $10,910,000 | $9,208,512 | -$1,701,488 | -15.60% | |
| Two Sigma Investments, Lp | 0.01% | 548,516 | $10,904,498 | $9,204,098 | -$1,700,400 | -15.59% | |
| Acadian Asset Management Llc | 0.01% | 520,886 | $10,348,000 | $8,740,467 | -$1,607,533 | -15.53% | |
| Morgan Stanley | 0.00% | 482,520 | $9,592,518 | $8,096,686 | -$1,495,832 | -15.59% | |
| Vanguard Portfolio Management Llc | 0.00% | 350,655 | $6,971,021 | $5,883,991 | -$1,087,030 | -15.59% | |
| Empowered Funds, Llc | 0.03% | 302,687 | $6,017,418 | $5,079,088 | -$938,330 | -15.59% | |
| Northern Trust Corp | 0.00% | 255,276 | $5,074,887 | $4,283,531 | -$791,356 | -15.59% | |
| Towle & Co | 1.68% | 249,091 | $4,951,929 | $4,179,747 | -$772,182 | -15.59% | |
| Ubs Group Ag | 0.00% | 240,480 | $4,780,743 | $4,035,254 | -$745,489 | -15.59% | |
| Qube Research & Technologies Ltd | 0.01% | 237,789 | $4,727,245 | $3,990,099 | -$737,146 | -15.59% | |
| Jacobs Levy Equity Management, Inc | 0.02% | 236,288 | $4,697,405 | $3,964,913 | -$732,492 | -15.59% | |
| Russell Investments Group, Ltd. | 0.00% | 234,677 | $4,665,397 | $3,937,880 | -$727,517 | -15.59% | |
| Tudor Investment Corp Et Al | 0.02% | 224,886 | $4,470,734 | $3,773,587 | -$697,147 | -15.59% | |
| Donald Smith & Co. | Donald G. Smith | 0.07% | 212,680 | $4,228,078 | $3,568,770 | -$659,308 | -15.59% |
| Citadel Advisors Llc | 0.00% | 212,037 | $4,215,296 | $3,557,981 | -$657,315 | -15.59% | |
| Millennium Management Llc | 0.00% | 205,610 | $4,087,527 | $3,450,136 | -$637,391 | -15.59% | |
| D. E. Shaw & Co., Inc. | 0.00% | 195,244 | $3,881,451 | $3,276,194 | -$605,257 | -15.59% | |
| Vanguard Fiduciary Trust Co | 0.00% | 178,736 | $3,553,272 | $2,999,190 | -$554,082 | -15.59% | |
| Mudita Advisors Llp | 0.70% | 170,490 | $3,389,341 | $2,860,822 | -$528,519 | -15.59% | |
| Bridgeway Capital Management, Llc | 0.06% | 170,212 | $3,383,815 | $2,856,157 | -$527,658 | -15.59% | |
| Bank Of America Corp | 0.00% | 147,002 | $2,922,400 | $2,466,694 | -$455,706 | -15.59% | |
| Lumbard & Kellner, Llc | 0.88% | 146,212 | $2,906,695 | $2,453,437 | -$453,258 | -15.59% | |
| Nuveen, Llc | 0.00% | 144,750 | $2,877,618 | $2,428,905 | -$448,713 | -15.59% | |
| Deprince Race & Zollo Inc | 0.05% | 140,933 | $2,801,749 | $2,364,856 | -$436,893 | -15.59% | |
| Centerbook Partners Lp | 0.13% | 136,684 | $2,717,278 | $2,293,558 | -$423,720 | -15.59% | |
| Victory Capital Management Inc | 0.00% | 132,402 | $2,632,152 | $2,221,706 | -$410,446 | -15.59% | |
| Invenomic Capital Management Lp | 0.15% | 128,043 | $2,545,495 | $2,148,562 | -$396,933 | -15.59% | |
| Jpmorgan Chase & Co | 0.00% | 124,574 | $2,457,845 | $2,090,352 | -$367,493 | -14.95% | |
| Ballast Asset Management, Lp | 0.92% | 116,048 | $2,307,034 | $1,947,285 | -$359,749 | -15.59% | |
| Norges Bank | 0.00% | 113,300 | $2,252,404 | $1,901,174 | -$351,230 | -15.59% | |
| Sei Investments Co | 0.00% | 110,787 | $2,202,450 | $1,859,006 | -$343,444 | -15.59% | |
| Bank Of New York Mellon Corp | 0.00% | 96,263 | $1,913,714 | $1,615,293 | -$298,421 | -15.59% | |
| Vanguard Global Advisers, Llc | 0.00% | 94,385 | $1,876,374 | $1,583,780 | -$292,594 | -15.59% | |
| Universal- Beteiligungs- Und Servicegesellschaft Mbh | 0.00% | 91,060 | $1,810,273 | $1,527,987 | -$282,286 | -15.59% | |
| Trexquant Investment Lp | 0.01% | 89,791 | $1,785,045 | $1,506,693 | -$278,352 | -15.59% |
Frequently asked questions about ASIX
Who owns the most ASIX stock?
The largest holders of ASIX are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ADVANSIX INC (ASIX).
Is ASIX widely held by superinvestors?
Many widely followed stocks like ASIX appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly ASIX is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.