ASIX Institutional Ownership & Shareholders
ADVANSIX INC (ASIX) is currently held by 248 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $492.29M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
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 $37.90M, representing an estimated loss of -21.88% 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
248
Total Reported Value
$492.29M
Largest Holder
Blackrock, Inc.
Largest Position
$48.52M
Insider Transactions (90d)
1
Latest Filing Quarter
Q2 2026
New Institutional Positions
50
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 | $37,900,654 | -$10,616,083 | -21.88% | |
| Castleknight Management Lp | 1.15% | 1,590,318 | $31,615,522 | $24,697,639 | -$6,917,883 | -21.88% | |
| Dimensional Fund Advisors Lp | 0.01% | 1,407,349 | $27,977,774 | $21,856,130 | -$6,121,644 | -21.88% | |
| American Century Companies Inc | 0.01% | 1,363,346 | $27,103,318 | $21,172,763 | -$5,930,555 | -21.88% | |
| Aegis Financial Corp | 3.80% | 1,209,629 | $24,047,425 | $18,785,538 | -$5,261,887 | -21.88% | |
| Vanguard Capital Management Llc | 0.00% | 1,151,355 | $22,888,937 | $17,880,543 | -$5,008,394 | -21.88% | |
| Alliancebernstein L.P. | 0.01% | 863,897 | $21,079,087 | $13,416,320 | -$7,662,767 | -36.35% | |
| Aqr Capital Management Llc | 0.00% | 700,057 | $13,917,126 | $10,871,885 | -$3,045,241 | -21.88% | |
| Geode Capital Management, Llc | 0.00% | 692,516 | $13,771,117 | $10,754,773 | -$3,016,344 | -21.90% | |
| Arrowstreet Capital, Limited Partnership | 0.01% | 664,944 | $13,219,087 | $10,326,580 | -$2,892,507 | -21.88% | |
| Fmr Llc | 0.00% | 658,319 | $13,087,381 | $10,223,694 | -$2,863,687 | -21.88% | |
| Charles Schwab Investment Management Inc | 0.00% | 611,277 | $12,152,187 | $9,493,132 | -$2,659,055 | -21.88% | |
| State Street Corp | 0.00% | 587,660 | $11,682,681 | $9,126,360 | -$2,556,321 | -21.88% | |
| Solas Capital Management, Llc | 6.09% | 571,324 | $11,357,921 | $8,872,662 | -$2,485,259 | -21.88% | |
| Goldman Sachs Group Inc | 0.00% | 553,525 | $11,004,079 | $8,596,243 | -$2,407,836 | -21.88% | |
| Lsv Asset Management | 0.02% | 548,779 | $10,910,000 | $8,522,538 | -$2,387,462 | -21.88% | |
| Two Sigma Investments, Lp | 0.01% | 548,516 | $10,904,498 | $8,518,453 | -$2,386,045 | -21.88% | |
| Acadian Asset Management Llc | 0.01% | 520,886 | $10,348,000 | $8,089,360 | -$2,258,640 | -21.83% | |
| Morgan Stanley | 0.00% | 482,520 | $9,592,518 | $7,493,536 | -$2,098,982 | -21.88% | |
| Vanguard Portfolio Management Llc | 0.00% | 350,655 | $6,971,021 | $5,445,672 | -$1,525,349 | -21.88% | |
| Empowered Funds, Llc | 0.03% | 302,687 | $6,017,418 | $4,700,729 | -$1,316,689 | -21.88% | |
| Northern Trust Corp | 0.00% | 255,276 | $5,074,887 | $3,964,436 | -$1,110,451 | -21.88% | |
| Towle & Co | 1.68% | 249,091 | $4,951,929 | $3,868,383 | -$1,083,546 | -21.88% | |
| Ubs Group Ag | 0.00% | 240,480 | $4,780,743 | $3,734,654 | -$1,046,089 | -21.88% | |
| Qube Research & Technologies Ltd | 0.01% | 237,789 | $4,727,245 | $3,692,863 | -$1,034,382 | -21.88% | |
| Jacobs Levy Equity Management, Inc | 0.02% | 236,288 | $4,697,405 | $3,669,553 | -$1,027,852 | -21.88% | |
| Russell Investments Group, Ltd. | 0.00% | 234,677 | $4,665,397 | $3,644,534 | -$1,020,863 | -21.88% | |
| Tudor Investment Corp Et Al | 0.02% | 224,886 | $4,470,734 | $3,492,480 | -$978,254 | -21.88% | |
| Donald Smith & Co. | Donald G. Smith | 0.07% | 212,680 | $4,228,078 | $3,302,920 | -$925,158 | -21.88% |
| Citadel Advisors Llc | 0.00% | 212,037 | $4,215,296 | $3,292,935 | -$922,361 | -21.88% | |
| Millennium Management Llc | 0.00% | 205,610 | $4,087,527 | $3,193,123 | -$894,404 | -21.88% | |
| Creative Planning | 0.00% | 248,366 | $3,953,988 | $3,857,124 | -$96,864 | -2.45% | |
| D. E. Shaw & Co., Inc. | 0.00% | 195,244 | $3,881,451 | $3,032,139 | -$849,312 | -21.88% | |
| Vanguard Fiduciary Trust Co | 0.00% | 178,736 | $3,553,272 | $2,775,770 | -$777,502 | -21.88% | |
| Centerbook Partners Lp | 0.16% | 216,550 | $3,447,476 | $3,363,022 | -$84,455 | -2.45% | |
| Mudita Advisors Llp | 0.70% | 170,490 | $3,389,341 | $2,647,710 | -$741,631 | -21.88% | |
| Bridgeway Capital Management, Llc | 0.06% | 170,212 | $3,383,815 | $2,643,392 | -$740,423 | -21.88% | |
| Bank Of America Corp | 0.00% | 147,002 | $2,922,400 | $2,282,941 | -$639,459 | -21.88% | |
| Lumbard & Kellner, Llc | 0.88% | 146,212 | $2,906,695 | $2,270,672 | -$636,023 | -21.88% | |
| Nuveen, Llc | 0.00% | 144,750 | $2,877,618 | $2,247,968 | -$629,651 | -21.88% | |
| Victory Capital Management Inc | 0.00% | 132,402 | $2,632,152 | $2,056,203 | -$575,949 | -21.88% | |
| Invenomic Capital Management Lp | 0.15% | 128,043 | $2,545,495 | $1,988,508 | -$556,987 | -21.88% | |
| Jpmorgan Chase & Co | 0.00% | 124,574 | $2,457,845 | $1,934,634 | -$523,211 | -21.29% | |
| Ballast Asset Management, Lp | 0.92% | 116,048 | $2,307,034 | $1,802,225 | -$504,809 | -21.88% | |
| Norges Bank | 0.00% | 113,300 | $2,252,404 | $1,759,549 | -$492,855 | -21.88% | |
| Sei Investments Co | 0.00% | 110,787 | $2,202,450 | $1,720,522 | -$481,928 | -21.88% | |
| Deprince Race & Zollo Inc | 0.04% | 135,443 | $2,156,252 | $2,103,430 | -$52,822 | -2.45% | |
| Peapod Lane Capital Llc | 1.51% | 127,369 | $2,027,714 | $1,978,041 | -$49,673 | -2.45% | |
| Bank Of New York Mellon Corp | 0.00% | 96,263 | $1,913,714 | $1,494,964 | -$418,750 | -21.88% | |
| Vanguard Global Advisers, Llc | 0.00% | 94,385 | $1,876,374 | $1,465,799 | -$410,575 | -21.88% |
Frequently asked questions about ASIX
Who are the largest institutional holders of ASIX?
The largest institutional holders of ASIX reported in the latest SEC Form 13F filings include Blackrock, Inc., Castleknight Management Lp, Dimensional Fund Advisors Lp, American Century Companies Inc, and Aegis Financial Corp. InsiderSet ranks institutional holders by their latest reported ASIX position.
What is ASIX institutional ownership?
This page tracks ASIX positions reported by institutional investment managers through SEC Form 13F. ADVANSIX INC (ASIX) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own ASIX?
InsiderSet currently tracks 248 institutional managers reporting ASIX holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of ASIX shareholders.
How much ASIX stock do institutions own?
Institutional investment managers disclosed approximately $492.29M in ASIX holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was ASIX institutional ownership last updated?
The latest ASIX institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional ASIX holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its ASIX position after the reporting date.
Are institutions buying or selling ASIX?
Institutional buying and selling can be analyzed by comparing ASIX positions across consecutive 13F reporting periods. InsiderSet's ASIX Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View ASIX ownership changes.
How has ASIX institutional ownership changed over time?
InsiderSet tracks ASIX institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.