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 March 31, 2026. The institutional investors covered on this page collectively reported approximately $542.53M 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 $55.73M in its March 31, 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 $45.82M, representing an estimated loss of -17.79% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 47% of the total disclosed ASIX value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Dimensional Fund Advisors Lp, Aegis Financial Corp, 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
260
Total Reported Value
$542.53M
Largest Holder
Blackrock, Inc.
Largest Position
$55.73M
Insider Transactions (90d)
9
Latest Filing Quarter
Q2 2026
New Institutional Positions
133
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% | 2,283,935 | $55,727,999 | $45,815,736 | -$9,912,263 | -17.79% | |
| Dimensional Fund Advisors Lp | 0.01% | 1,311,006 | $31,988,371 | $26,298,780 | -$5,689,591 | -17.79% | |
| Aegis Financial Corp | 5.08% | 1,209,629 | $29,514,948 | $24,265,158 | -$5,249,790 | -17.79% | |
| American Century Companies Inc | 0.01% | 1,126,637 | $27,489,943 | $22,600,338 | -$4,889,605 | -17.79% | |
| Vanguard Capital Management Llc | 0.00% | 1,123,457 | $27,412,351 | $22,536,547 | -$4,875,804 | -17.79% | |
| Arrowstreet Capital, Limited Partnership | 0.01% | 728,292 | $17,770,325 | $14,609,538 | -$3,160,787 | -17.79% | |
| Charles Schwab Investment Management Inc | 0.00% | 696,362 | $16,991,233 | $13,969,022 | -$3,022,211 | -17.79% | |
| Geode Capital Management, Llc | 0.00% | 652,248 | $15,919,326 | $13,084,095 | -$2,835,231 | -17.81% | |
| Aqr Capital Management Llc | 0.01% | 638,571 | $15,581,123 | $12,809,734 | -$2,771,389 | -17.79% | |
| Castleknight Management Lp | 0.72% | 631,781 | $15,415,456 | $12,673,527 | -$2,741,929 | -17.79% | |
| Alliancebernstein L.P. | 0.00% | 870,976 | $15,067,885 | $17,471,779 | +$2,403,894 | +15.95% | |
| Two Sigma Investments, Lp | 0.01% | 612,694 | $14,949,734 | $12,290,642 | -$2,659,092 | -17.79% | |
| Fmr Llc | 0.00% | 608,289 | $14,842,253 | $12,202,277 | -$2,639,976 | -17.79% | |
| State Street Corp | 0.00% | 566,641 | $13,826,040 | $11,366,818 | -$2,459,222 | -17.79% | |
| Solas Capital Management, Llc | 7.26% | 517,029 | $12,615,508 | $10,371,602 | -$2,243,906 | -17.79% | |
| Goldman Sachs Group Inc | 0.00% | 490,382 | $11,965,318 | $9,837,063 | -$2,128,255 | -17.79% | |
| Jane Street Group, Llc | 0.01% | 405,355 | $9,890,661 | $8,131,421 | -$1,759,240 | -17.79% | |
| Morgan Stanley | 0.00% | 402,341 | $9,817,146 | $8,070,960 | -$1,746,186 | -17.79% | |
| Russell Investments Group, Ltd. | 0.01% | 329,879 | $8,049,082 | $6,617,373 | -$1,431,709 | -17.79% | |
| Invenomic Capital Management Lp | 0.35% | 313,549 | $7,650,596 | $6,289,793 | -$1,360,803 | -17.79% | |
| Lloyd Harbor Capital Management, Llc | 3.66% | 290,000 | $7,076,000 | $5,817,400 | -$1,258,600 | -17.79% | |
| Vanguard Portfolio Management Llc | 0.00% | 286,349 | $6,986,916 | $5,744,161 | -$1,242,755 | -17.79% | |
| Qube Research & Technologies Ltd | 0.01% | 281,575 | $6,870,430 | $5,648,395 | -$1,222,036 | -17.79% | |
| Deprince Race & Zollo Inc | 0.13% | 275,482 | $6,721,761 | $5,526,169 | -$1,195,592 | -17.79% | |
| Ubs Group Ag | 0.00% | 265,805 | $6,485,642 | $5,332,048 | -$1,153,594 | -17.79% | |
| Northern Trust Corp | 0.00% | 239,342 | $5,839,945 | $4,801,201 | -$1,038,744 | -17.79% | |
| D. E. Shaw & Co., Inc. | 0.00% | 229,630 | $5,602,972 | $4,606,378 | -$996,594 | -17.79% | |
| Centerbook Partners Lp | 0.30% | 228,201 | $5,568,104 | $4,577,712 | -$990,392 | -17.79% | |
| Donald Smith & Co. | Donald G. Smith | 0.10% | 227,980 | $5,562,712 | $4,573,279 | -$989,433 | -17.79% |
| Citadel Advisors Llc | 0.00% | 221,864 | $5,413,482 | $4,450,592 | -$962,890 | -17.79% | |
| Point72 Asset Management, L.P. | 0.01% | 206,889 | $5,048,092 | $4,150,193 | -$897,899 | -17.79% | |
| Jacobs Levy Equity Management, Inc | 0.02% | 198,296 | $4,838,422 | $3,977,818 | -$860,604 | -17.79% | |
| Millennium Management Llc | 0.00% | 198,134 | $4,834,470 | $3,974,568 | -$859,902 | -17.79% | |
| Vanguard Fiduciary Trust Co | 0.00% | 176,576 | $4,308,454 | $3,542,115 | -$766,339 | -17.79% | |
| Franklin Resources Inc | 0.00% | 174,324 | $4,253,506 | $3,496,939 | -$756,567 | -17.79% | |
| Bridgeway Capital Management, Llc | 0.08% | 162,436 | $3,963,438 | $3,258,466 | -$704,972 | -17.79% | |
| Creative Planning | 0.00% | 147,856 | $3,607,688 | $2,965,991 | -$641,697 | -17.79% | |
| Lumbard & Kellner, Llc | 1.23% | 145,694 | $3,554,934 | $2,922,622 | -$632,312 | -17.79% | |
| Bank Of America Corp | 0.00% | 144,314 | $3,521,261 | $2,894,939 | -$626,322 | -17.79% | |
| Tudor Investment Corp Et Al | 0.02% | 143,078 | $3,491,103 | $2,870,145 | -$620,958 | -17.79% | |
| Victory Capital Management Inc | 0.00% | 140,755 | $3,434,422 | $2,823,545 | -$610,877 | -17.79% | |
| Ballast Asset Management, Lp | 1.27% | 117,124 | $2,857,826 | $2,349,507 | -$508,319 | -17.79% | |
| Susquehanna International Group, Llp | 0.00% | 114,968 | $2,805,219 | $2,306,258 | -$498,961 | -17.79% | |
| Empowered Funds, Llc | 0.02% | 100,736 | $2,457,958 | $2,020,764 | -$437,194 | -17.79% | |
| Walnut Level Capital Llc | 2.79% | 100,000 | $2,440,000 | $2,006,000 | -$434,000 | -17.79% | |
| Vanguard Global Advisers, Llc | 0.00% | 96,520 | $2,355,088 | $1,936,191 | -$418,897 | -17.79% | |
| Balyasny Asset Management L.P. | 0.00% | 94,980 | $2,317,512 | $1,905,299 | -$412,213 | -17.79% | |
| Bank Of New York Mellon Corp | 0.00% | 92,943 | $2,267,816 | $1,864,437 | -$403,379 | -17.79% | |
| Universal- Beteiligungs- Und Servicegesellschaft Mbh | 0.00% | 91,060 | $2,221,864 | $1,826,664 | -$395,200 | -17.79% | |
| Mudita Advisors Llp | 0.41% | 82,807 | $2,020,491 | $1,661,108 | -$359,383 | -17.79% |
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.