Company · Ownership research

AdvanSix Inc. ASIX

CIK 0001673985 · CUSIP 00773T101

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

This page lists the top 20 of 267 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$55.73M 2,283,935 shares	0.00%	-1.11M(-32.70%)Reduced	SEC filing ↗ May 13, 2026	▾
02	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$31.99M 1,311,006 shares	0.01%	+8.13K(+0.60%)Added	SEC filing ↗ May 7, 2026	▾
03	AEGIS FINANCIAL CORP CIK 1140753 · View history	$29.51M 1,209,629 shares	5.08%	0(0.00%)Unchanged	SEC filing ↗ May 13, 2026	▾
04	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$27.49M 1,126,637 shares	0.01%	+105.52K(+10.30%)Added	SEC filing ↗ May 15, 2026	▾
05	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$27.41M 1,123,457 shares	0.00%	—	SEC filing ↗ May 15, 2026	▾
06	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$17.77M 728,292 shares	0.01%	+319.53K(+78.20%)Added	SEC filing ↗ May 14, 2026	▾
07	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$16.99M 696,362 shares	0.00%	-15.27K(-2.10%)Reduced	SEC filing ↗ May 15, 2026	▾
08	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$15.92M 652,248 shares	0.00%	+15.88K(+2.50%)Added	SEC filing ↗ May 15, 2026	▾
09	AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history	$15.58M 638,571 shares	0.01%	+346.25K(+118.50%)Added	SEC filing ↗ May 15, 2026	▾
10	CastleKnight Management LP CIK 1835751 · View history	$15.42M 631,781 shares	0.72%	+631.78KNew	SEC filing ↗ May 15, 2026	▾
11	ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history	$15.07M 870,976 shares	0.00%	-72.94K(-7.70%)Reduced	SEC filing ↗ May 15, 2026	▾
12	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$14.95M 612,694 shares	0.01%	+207.29K(+51.10%)Added	SEC filing ↗ May 15, 2026	▾
13	FMR LLC CIK 315066 · View history	$14.84M 608,289 shares	0.00%	+101.82K(+20.10%)Added	SEC filing ↗ May 15, 2026	▾
14	STATE STREET CORP CIK 93751 · View history	$13.83M 566,641 shares	0.00%	-72.41K(-11.30%)Reduced	SEC filing ↗ May 15, 2026	▾
15	LSV ASSET MANAGEMENT CIK 1050470 · View history	$13.44M 550,679 shares	0.03%	-18.80K(-3.30%)Reduced	SEC filing ↗ May 11, 2026	▾
16	Solas Capital Management, LLC CIK 1604867 · View history	$12.62M 517,029 shares	7.26%	-98.42K(-16.00%)Reduced	SEC filing ↗ May 15, 2026	▾
17	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$11.97M 490,382 shares	0.00%	+111.77K(+29.50%)Added	SEC filing ↗ May 15, 2026	▾
18	JANE STREET GROUP, LLC CIK 1595888 · View history	$9.89M 405,355 shares	0.01%	-100.58K(-19.90%)Reduced	SEC filing ↗ May 12, 2026	▾
19	MORGAN STANLEY CIK 895421 · View history	$9.82M 402,341 shares	0.00%	+140.49K(+53.60%)Added	SEC filing ↗ May 15, 2026	▾
20	Russell Investments Group, Ltd. CIK 1692234 · View history	$8.05M 329,879 shares	0.01%	+36.47K(+12.40%)Added	SEC filing ↗ May 8, 2026	▾

Showing 20 / 267 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

267

Cancelled or null records excluded

Disclosed shares

23,724,166

Not deduplicated across managers

Disclosed value

$572.41M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

AdvanSix Inc. · Q1 2026

Explore all 267 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.