AdvanSix Inc. 13F holders
257 funds reported a position in AdvanSix Inc. in their 13F for the quarter ended 30 June 2026, together 24.9 million shares worth $498.3 million. Against the quarter before, 16 opened a position, 78 added, 59 trimmed and 31 sold out; together they bought a net 999,709 shares. The largest holders: BlackRock, Inc., CastleKnight Management LP and Dimensional Fund Advisors LP.
Funds holding257-9 on Q1 2026
Shares they held24.9Mworth $498.3 million
Net bought on the quarter999,709 sharesabout $20.0 million at the funds' values
Funds buying to selling94 to 90opened or added, to cut or sold
Opened 16Added 78Held 101Trimmed 59Sold out 31
What each fund did in ASIX against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in ASIX in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,405 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 79 reported a position in AdvanSix Inc.: 4 opened one, 16 added, 16 trimmed and 7 sold out, a net 24,053 shares bought.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 6 reported a position in AdvanSix Inc. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 692,516 shares worth $13.8 million, 0.0% of its reported book. Sold out: Point72 Asset Management. In the quarter, 3 funds added or opened a position and 3 trimmed or sold out; together they sold a net 183,120 shares, about $3.6 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 692,516 | $13.8 million | 0.0% | +40,268 | added | 30 June 2026 | 13F |
| FMR LLC | 658,319 | $13.1 million | 0.0% | +50,030 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 548,516 | $10.9 million | 0.0% | -64,178 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 212,037 | $4.2 million | 0.0% | -9,827 | trimmed | 30 June 2026 | 13F |
| Millennium Management | 205,610 | $4.1 million | 0.0% | +7,476 | added | 30 June 2026 | 13F |
| Norges Bank | 113,300 | $2.3 million | 0.0% | held | 30 June 2026 | 13F | |
| Point72 Asset Management | 0 | $0 | 0.0% | -206,889 | exited | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 2,440,480 | 9.80% | $48.5 million | 0.00% | +156,545 | 13F |
| CastleKnight Management LP | 1,590,318 | 6.39% | $31.6 million | 1.15% | +958,537 | 13F |
| Dimensional Fund Advisors LP | 1,407,349 | 5.65% | $28.0 million | 0.01% | +96,343 | 13F |
| American Century Companies Inc. | 1,363,346 | 5.48% | $27.1 million | 0.01% | +236,709 | 13F |
| Aegis Financial Corp. | 1,209,629 | 4.86% | $24.0 million | 3.80% | no change | 13F |
| Vanguard Capital Management LLC | 1,151,355 | 4.62% | $22.9 million | 0.00% | +27,898 | 13F |
| AllianceBernstein L.P. | 863,897 | 3.47% | $21.1 million | 0.01% | -7,079 | 13F |
| AQR Capital Management LLC | 700,057 | 2.81% | $13.9 million | 0.01% | +61,486 | 13F |
| Geode Capital Management, LLC | 692,516 | 2.78% | $13.8 million | 0.00% | +40,268 | 13F |
| Arrowstreet Capital, Limited Partnership | 664,944 | 2.67% | $13.2 million | 0.01% | -63,348 | 13F |
| FMR LLC | 658,319 | 2.64% | $13.1 million | 0.00% | +50,030 | 13F |
| Charles Schwab Investment Management Inc. | 611,277 | 2.46% | $12.2 million | 0.00% | -85,085 | 13F |
| State Street Corp. | 587,660 | 2.36% | $11.7 million | 0.00% | +21,019 | 13F |
| Solas Capital Management, LLC | 571,324 | 2.29% | $11.4 million | 6.09% | +54,295 | 13F |
| Goldman Sachs Group Inc. | 553,525 | 2.22% | $11.0 million | 0.00% | +63,143 | 13F |
| LSV Asset Management | 548,779 | 2.20% | $10.9 million | 0.02% | -1,900 | 13F |
| Two Sigma Investments, LP | 548,516 | 2.20% | $10.9 million | 0.01% | -64,178 | 13F |
| Acadian Asset Management LLC | 520,886 | 2.09% | $10.3 million | 0.01% | +299,487 | 13F |
| Morgan Stanley | 482,520 | 1.94% | $9.6 million | 0.00% | +80,179 | 13F |
| Vanguard Portfolio Management LLC | 350,655 | 1.41% | $7.0 million | 0.00% | +64,306 | 13F |
| Empowered Funds, LLC | 302,687 | 1.22% | $6.0 million | 0.03% | +201,951 | 13F |
| Northern Trust Corp. | 255,276 | 1.03% | $5.1 million | 0.00% | +15,934 | 13F |
| Towle & Co. | 249,091 | 1.00% | $5.0 million | 1.68% | +234,976 | 13F |
| UBS Group AG | 240,480 | 0.97% | $4.8 million | 0.00% | -25,325 | 13F |
| Qube Research & Technologies Ltd | 237,789 | 0.96% | $4.7 million | 0.01% | -43,786 | 13F |
| Jacobs Levy Equity Management, Inc. | 236,288 | 0.95% | $4.7 million | 0.02% | +37,992 | 13F |
| Russell Investments Group, Ltd. | 234,677 | 0.94% | $4.7 million | 0.00% | -95,202 | 13F |
| Tudor Investment Corp. Et Al | 224,886 | 0.90% | $4.5 million | 0.02% | +81,808 | 13F |
| Donald Smith & Co., Inc. | 212,680 | 0.85% | $4.2 million | 0.07% | -15,300 | 13F |
| Citadel Advisors LLC | 212,037 | 0.85% | $4.2 million | 0.00% | -9,827 | 13F |
| Millennium Management LLC | 205,610 | 0.83% | $4.1 million | 0.00% | +7,476 | 13F |
| D. E. Shaw & Co., Inc. | 195,244 | 0.78% | $3.9 million | 0.00% | -34,386 | 13F |
| Vanguard Fiduciary Trust Co. | 178,736 | 0.72% | $3.6 million | 0.00% | +2,160 | 13F |
| Mudita Advisors LLP | 170,490 | 0.68% | $3.4 million | 0.70% | +87,683 | 13F |
| Bridgeway Capital Management, LLC | 170,212 | 0.68% | $3.4 million | 0.06% | +7,776 | 13F |
| Creative Planning | 148,891 | 0.60% | $3.0 million | 0.00% | +1,035 | 13F |
| Bank of America Corp. | 147,002 | 0.59% | $2.9 million | 0.00% | +2,688 | 13F |
| Lumbard & Kellner, LLC | 146,212 | 0.59% | $2.9 million | 0.88% | +518 | 13F |
| Nuveen, LLC | 144,750 | 0.58% | $2.9 million | 0.00% | +89,648 | 13F |
| Deprince Race & Zollo Inc. | 140,933 | 0.57% | $2.8 million | 0.05% | -134,549 | 13F |
| CenterBook Partners LP | 136,684 | 0.55% | $2.7 million | 0.13% | -91,517 | 13F |
| Victory Capital Management Inc. | 132,402 | 0.53% | $2.6 million | 0.00% | -8,353 | 13F |
| Invenomic Capital Management LP | 128,043 | 0.51% | $2.5 million | 0.15% | -185,506 | 13F |
| JPMorgan Chase & Co. | 124,574 | 0.50% | $2.5 million | 0.00% | +65,610 | 13F |
| Core Capital Management & Research, inc. | 139,114 | 0.56% | $2.4 million | 1.25% | first 13F | 13F |
| Ballast Asset Management, LP | 116,048 | 0.47% | $2.3 million | 0.92% | -1,076 | 13F |
| Norges Bank | 113,300 | 0.46% | $2.3 million | 0.00% | 13F | |
| Sei Investments Co. | 110,787 | 0.44% | $2.2 million | 0.00% | +29,326 | 13F |
| Franklin Resources Inc. | 102,523 | 0.41% | $2.0 million | 0.00% | -71,801 | 13F |
| Bank of New York Mellon Corp | 96,263 | 0.39% | $1.9 million | 0.00% | +3,320 | 13F |
The 50 largest of the 257 funds that reported a position in ASIX in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on ASIX
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 13,500 | $268,380 | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 14 August 2026 | 13G | American Century Investment Management, Inc. and 5 others | 1.4 million | 5.1% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 14 July 2026 | 13G | Dimensional Fund Advisors LP and 1 other | 1.4 million | 5.2% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 14 May 2026 | 13G | CastleKnight Master Fund LP and 11 others | 1.7 million | 6.2% | 7 May 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 24 April 2026 | 13G/A | BlackRock, Inc. and 1 other | 1.9 million | 7.1% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 26 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 11 February 2026 | 13G/A | Victory Capital Management, Inc. and 1 other | 137,620 | 0.5% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 30 January 2026 | 13G/A | The Vanguard Group and 1 other | 1.7 million | 6.3% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 21 January 2026 | 13G/A | Dimensional Fund Advisors LP and 1 other | 1.3 million | 4.8% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 8 January 2026 | 13G/A | BlackRock, Inc. and 1 other | 3.2 million | 11.9% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 13 August 2026 | 221 | $15.82 | SEC |
| 6 August 2026 | 127 | $20.03 | SEC |
| 29 July 2026 | 36 | $20.43 | SEC |
| 28 July 2026 | 38 | $20.25 | SEC |
| 23 July 2026 | 269 | $21.85 | SEC |
| 22 July 2026 | 556 | $21.56 | SEC |
| 21 July 2026 | 469 | $20.43 | SEC |
| 15 July 2026 | 24 | $21.03 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.