AdvanSix ASIX Institutional Ownership

NYSE ASIX

$16.05 -0.32 (-1.95%)

As of: Oct 19, 2026 · 3:59 PM EDT

Institutions by Trading Activity

255 Institutions

Increased 107 42.0%

Unchanged 91 35.7%

Reduced 57 22.4%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

92.03%

▲+4.19 pp QoQ

Shares Held by Institutions

24.89Mn

of 27.05Mn outstanding

▲+5.03% QoQ

Shares Outstanding

27.05Mn

2.16Mn held outside 13F filers

Institutional Investors

255

filed 13F for Jun 2026

▼-9 vs prior quarter

Net Shares Added (QoQ)

+1.19Mn

accumulated since last quarter

Value of Holdings

$410.43Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

AdvanSix Inc. (NYSE:ASIX) was held by 255 institutional investors that filed 13F reports for the quarter ended June 30, 2026.

Their combined stake equaled 92.03% of outstanding shares in Q2 2026, up from 87.83% in Q1 2026.
Total shares held in AdvanSix rose 5.03% versus Q1 2026, while the number of holders fell 9.57% versus Q2 2025.
Of the 255 holders of ASIX in Q2 2026, 107 added to their positions, 57 reduced their stakes and 91 left their positions unchanged.
Combined, institutional investors held 24.89Mn shares of ASIX as of Q2 2026, up 1.19Mn from the prior quarter and up 633.81K from a year earlier.
BlackRock, Inc. held the largest position in ASIX at 2.44Mn shares as of June 30, 2026, or 9.02% of shares outstanding.
Among holders that already owned AdvanSix, the biggest buyers in Q2 2026 were CastleKnight Management LP (+958.54K shares), Acadian Asset Management LLC (+299.49K shares), American Century Companies Inc (+236.71K shares), Towle & Co (+234.98K shares) and Empowered Funds, LLC (+201.95K shares).
On the other side, among holders that kept a position in AdvanSix, the largest reductions in Q2 2026 came from Jane Street Group, LLC (-325.47K shares), Invenomic Capital Management LP (-185.51K shares), DePrince Race & Zollo Inc (-134.55K shares), Susquehanna International Group, LLP (-95.72K shares) and Russell Investments Group, Ltd. (-95.2K shares).
Per Business Quant data, the 10 largest holders of AdvanSix at the end of Q2 2026 were BlackRock, Inc. (2.44Mn shares), CastleKnight Management LP (1.59Mn shares), Dimensional Fund Advisors LP (1.41Mn shares), American Century Companies Inc (1.36Mn shares), Aegis Financial Corp (1.21Mn shares), Vanguard Capital Management LLC (1.15Mn shares), AllianceBernstein L.P. (863.9K shares), AQR Capital Management LLC (700.06K shares), Geode Capital Management, LLC (692.52K shares) and Arrowstreet Capital, Limited Partnership (664.94K shares).

Form 13F Holdings

256 Institutional Holders

Report period 30 Jun, 2026

Total shares held 24.89Mn

Of outstanding 92.03%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	2,440,480	9.02%	▲156,545	+6.85%	$48.52Mn
2	CastleKnight Management LP	0001835751	1,590,318	5.88%	▲958,537	+151.72%	$31.62Mn
3	DIMENSIONAL FUND ADVISORS LP	0000354204	1,407,349	5.20%	▲96,343	+7.35%	$27.98Mn
4	AMERICAN CENTURY COMPANIES INC	0000748054	1,363,346	5.04%	▲236,709	+21.01%	$27.10Mn
5	AEGIS FINANCIAL CORP	0001140753	1,209,629	4.47%	0	0.00%	$24.05Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,151,355	4.26%	▲27,898	+2.48%	$22.89Mn
7	ALLIANCEBERNSTEIN L.P.	0001109448	863,897	3.19%	▼7,079	-0.81%	$21.08Mn
8	AQR CAPITAL MANAGEMENT LLC	0001167557	700,057	2.59%	▲61,486	+9.63%	$13.92Mn
9	GEODE CAPITAL MANAGEMENT, LLC	0001214717	692,516	2.56%	▲40,268	+6.17%	$13.77Mn
10	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	0001164508	664,944	2.46%	▼63,348	-8.70%	$13.22Mn
11	FMR LLC	0000315066	658,319	2.43%	▲50,030	+8.22%	$13.09Mn
12	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	611,277	2.26%	▼85,085	-12.22%	$12.15Mn
13	State Street Corp	0000093751	587,660	2.17%	▲21,019	+3.71%	$11.68Mn
14	Solas Capital Management, LLC	0001604867	571,324	2.11%	▲54,295	+10.50%	$11.36Mn
15	Goldman Sachs Group Inc	0000886982	553,525	2.05%	▲63,143	+12.88%	$11.00Mn
16	LSV ASSET MANAGEMENT	0001050470	548,779	2.03%	▼1,900	-0.35%	$10.91K
17	TWO SIGMA INVESTMENTS, LP	0001179392	548,516	2.03%	▼64,178	-10.47%	$10.90Mn
18	ACADIAN ASSET MANAGEMENT LLC	0000916542	520,886	1.93%	▲299,487	+135.27%	$10.35K
19	Morgan Stanley	0000895421	482,520	1.78%	▲80,179	+19.93%	$9.59Mn
20	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	350,655	1.30%	▲64,306	+22.46%	$6.97Mn

Showing 1 to 20 of 256 holders