Advansix Inc.: which funds bought and sold

Institutions that bought and sold Advansix shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 99 institutions that filed 13F reports for both quarters added to or opened positions in Advansix, and 90 cut or closed them. Together they added a net 955K shares, +4.0% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 674K shares (+7.2%); index fund managers were net buyers of 247K shares (+4.1%). 21 opened a new position and 32 sold out entirely.

Bought, Q2 2026 99 institutions, 21 of them new holders Sold, Q2 2026 90 institutions, 32 of them sold out

Net change, all compared +955K shares (+4.0%)

Net change, active managers +674K shares (+7.2%), 16 bought, 24 sold

Buyers versus sellers

institutions compared, 278

99 bought 89 90 sold

Active managers and hedge funds 16 bought · 24 sold · +674K

Index fund managers 9 bought · 1 sold · +247K

Other institutions 74 bought · 65 sold · +35K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Castleknight Management LP Hedge fund	+959K +151.7%	1.6M	$31.6M
Acadian Asset Management LLC Active manager	+299K +135.3%	521K	$10.3M
American Century Companies Inc Active manager	+237K +21.0%	1.4M	$27.1M
Towle & Co	+235K +1664.7%	249K	$5M
Empowered Funds, LLC	+202K +200.5%	303K	$6M
Blackrock, Inc. Index funds	+157K +6.9%	2.4M	$48.5M
Dimensional Fund Advisors LP	+96K +7.3%	1.4M	$28M
UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC	+95K +10287.1%	96K	$1.9M
Nuveen, LLC	+90K +162.7%	145K	$2.9M
Mudita Advisors LLP	+88K +105.9%	170K	$3.4M
Tudor Investment Corp Et Al Hedge fund	+82K +57.2%	225K	$4.5M
Morgan Stanley	+80K +19.9%	483K	$9.6M
Numerai Gp LLC	+67K New position	67K	$1.3M
Jpmorgan Chase & Co	+66K +111.3%	125K	$2.5M
Vanguard Portfolio Management LLC Index funds	+64K +22.5%	351K	$7M
Goldman Sachs Group Inc	+63K +12.9%	554K	$11M
AQR Capital Management LLC Hedge fund	+61K +9.6%	700K	$13.9M
Solas Capital Management, LLC	+54K +10.5%	571K	$11.4M
FMR LLC Active manager	+50K +8.2%	658K	$13.1M
Squarepoint Ops LLC Hedge fund	+46K +125.5%	82K	$1.6M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Castleknight Management LP Hedge fund	+959K +151.7%	1.6M	$31.6M
Acadian Asset Management LLC Active manager	+299K +135.3%	521K	$10.3M
American Century Companies Inc Active manager	+237K +21.0%	1.4M	$27.1M
Tudor Investment Corp Et Al Hedge fund	+82K +57.2%	225K	$4.5M
AQR Capital Management LLC Hedge fund	+61K +9.6%	700K	$13.9M
FMR LLC Active manager	+50K +8.2%	658K	$13.1M
Squarepoint Ops LLC Hedge fund	+46K +125.5%	82K	$1.6M
Jacobs Levy Equity Management, Inc Active manager	+38K +19.2%	236K	$4.7M
Trexquant Investment LP Hedge fund	+29K +48.5%	90K	$1.8M
Jain Global LLC Hedge fund	+27K New position	27K	$530,259

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Jane Street Group, LLC	−325K −80.3%	80K	$1.6M
Lloyd Harbor Capital Management, LLC	−290K Sold out	0	—
Point72 Asset Management, L.P. Hedge fund	−207K Sold out	0	—
Invenomic Capital Management LP Hedge fund	−186K −59.2%	128K	$2.5M
Deprince Race & Zollo Inc Active manager	−135K −48.8%	141K	$2.8M
HRT Financial LP	−122K Sold out	0	—
Walnut Level Capital LLC	−100K Sold out	0	—
Susquehanna International Group, LLP	−96K −83.3%	19K	$382,571
Russell Investments Group, Ltd.	−95K −28.9%	235K	$4.7M
Balyasny Asset Management L.P. Hedge fund	−95K Sold out	0	—
Centerbook Partners LP Hedge fund	−92K −40.1%	137K	$2.7M
Charles Schwab Investment Management Inc Index funds	−85K −12.2%	611K	$12.2M
First Eagle Investment Management, LLC Active manager	−82K Sold out	0	—
Franklin Resources Inc Active manager	−72K −41.2%	103K	$2M
Two Sigma Investments, LP Hedge fund	−64K −10.5%	549K	$10.9M
Arrowstreet Capital, Limited Partnership Hedge fund	−63K −8.7%	665K	$13.2M
Healthcare Of Ontario Pension Plan Trust Fund	−56K Sold out	0	—
Qube Research & Technologies Ltd Hedge fund	−44K −15.6%	238K	$4.7M
SG Americas Securities, LLC	−37K −87.3%	5,331	$106,000
D. E. Shaw & Co., Inc. Hedge fund	−34K −15.0%	195K	$3.9M

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Point72 Asset Management, L.P. Hedge fund	−207K Sold out	0	—
Invenomic Capital Management LP Hedge fund	−186K −59.2%	128K	$2.5M
Deprince Race & Zollo Inc Active manager	−135K −48.8%	141K	$2.8M
Balyasny Asset Management L.P. Hedge fund	−95K Sold out	0	—
Centerbook Partners LP Hedge fund	−92K −40.1%	137K	$2.7M
First Eagle Investment Management, LLC Active manager	−82K Sold out	0	—
Franklin Resources Inc Active manager	−72K −41.2%	103K	$2M
Two Sigma Investments, LP Hedge fund	−64K −10.5%	549K	$10.9M
Arrowstreet Capital, Limited Partnership Hedge fund	−63K −8.7%	665K	$13.2M
Qube Research & Technologies Ltd Hedge fund	−44K −15.6%	238K	$4.7M

New positions

largest by value

Institution	Shares	Value June 30, 2026
Numerai Gp LLC	67K	$1.3M
Mutual Advisors, LLC	42K	$825,040
Corient Private Wealth LP	32K	$633,718
Fox Run Management, L.L.C.	29K	$567,892
Jain Global LLCHedge fund	27K	$530,259
Nverses Capital, LLC	16K	$314,521
Strs Ohio	15K	$294,224
Odyssean, LLC	12K	$239,773
Cv Advisors LLC	11K	$212,219
Boothbay Fund Management, LLCHedge fund	10K	$203,949

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Lloyd Harbor Capital Management, LLC	290K	$7.1M
Point72 Asset Management, L.P.Hedge fund	207K	$5M
HRT Financial LP	122K	$3M
Walnut Level Capital LLC	100K	$2.4M
Balyasny Asset Management L.P.Hedge fund	95K	$2.3M
First Eagle Investment Management, LLCActive manager	82K	$2M
Healthcare Of Ontario Pension Plan Trust Fund	56K	$1.4M
HSBC Holdings PLC	26K	$637,852
Jump Financial, LLC	23K	$554,270
Thompson Siegel & Walmsley LLC	22K	$533,000

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 250
Ten largest holders: 48.8%
Index fund managers: 25.5%
Active managers and hedge funds: 40.6%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	16	24	3	7	+674K	+7.2%
Index fund managers	9	1	0	0	+247K	+4.1%
Other institutions	74	65	18	25	+35K	+0.4%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Advansix.

Only managers that filed a holdings report for both quarters are compared (278 here). 10 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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