American Coastal Insurance Corp: which funds bought and sold

Institutions that bought and sold American Coastal Insurance 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, 65 institutions that filed 13F reports for both quarters added to or opened positions in American Coastal Insurance, and 69 cut or closed them. Together they sold a net 1.8M shares, −10.3% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 1.0M shares (−19.0%); index fund managers were net buyers of 496K shares (+10.6%). 16 opened a new position and 31 sold out entirely.

Bought, Q2 2026 65 institutions, 16 of them new holders Sold, Q2 2026 69 institutions, 31 of them sold out

Net change, all compared −1.8M shares (−10.3%)

Net change, active managers −1.0M shares (−19.0%), 15 bought, 14 sold

Buyers versus sellers

institutions compared, 164

65 bought 30 69 sold

Active managers and hedge funds 15 bought · 14 sold · −1.0M

Index fund managers 7 bought · 2 sold · +496K

Other institutions 43 bought · 53 sold · −1.3M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Blackrock, Inc. Index funds	+452K +24.7%	2.3M	$25.3M
Dimensional Fund Advisors LP	+144K +19.2%	894K	$9.9M
Arrowstreet Capital, Limited Partnership Hedge fund	+138K +43.3%	456K	$5.1M
O'Shaughnessy Asset Management, LLC Active manager	+133K New position	133K	$1.5M
American Century Companies Inc Active manager	+129K +17.9%	848K	$9.4M
HRT Financial LP	+105K +746.1%	119K	$1.3M
Mackenzie Financial Corp	+83K New position	83K	$919,513
Ritholtz Wealth Management	+61K +246.8%	86K	$956,332
Geode Capital Management, LLC Index funds	+61K +9.9%	677K	$7.5M
Iht Wealth Management, LLC	+54K New position	54K	$602,819
Connor, Clark & Lunn Investment Management Ltd.	+40K +48.4%	123K	$1.4M
Quantinno Capital Management LP	+39K +164.6%	63K	$702,963
AQR Capital Management LLC Hedge fund	+36K +16.9%	252K	$2.8M
Great Lakes Advisors, LLC	+36K New position	36K	$397,790
Tactive Advisors, LLC	+33K +147.6%	55K	$610,667
State Of Wisconsin Investment Board	+30K +216.6%	44K	$488,333
Entrypoint Capital, LLC	+28K New position	28K	$315,728
Two Sigma Investments, LP Hedge fund	+27K +4.7%	592K	$6.6M
Citigroup Inc	+26K +1530.2%	28K	$310,866
Mercer Global Advisors Inc	+24K +21.7%	134K	$1.5M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Arrowstreet Capital, Limited Partnership Hedge fund	+138K +43.3%	456K	$5.1M
O'Shaughnessy Asset Management, LLC Active manager	+133K New position	133K	$1.5M
American Century Companies Inc Active manager	+129K +17.9%	848K	$9.4M
AQR Capital Management LLC Hedge fund	+36K +16.9%	252K	$2.8M
Two Sigma Investments, LP Hedge fund	+27K +4.7%	592K	$6.6M
Bridgeway Capital Management, LLC Active manager	+16K +5.5%	304K	$3.4M
Squarepoint Ops LLC Hedge fund	+16K New position	16K	$173,005
D. E. Shaw & Co., Inc. Hedge fund	+11K New position	11K	$126,784
Quadrature Capital Ltd Hedge fund	+11K New position	11K	$122,944
Mangrove Partners Im, LLC Hedge fund	+10K +31.2%	43K	$478,443

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Empyrean Capital Partners, LP Hedge fund	−896K −79.5%	231K	$2.6M
Militia Capital Management LLC	−571K −94.9%	31K	$340,304
Dg Capital Management, LLC	−465K Sold out	0	—
Sei Investments Co	−313K −52.0%	289K	$3.2M
Marshall Wace, LLP Hedge fund	−179K Sold out	0	—
Qube Research & Technologies Ltd Hedge fund	−148K Sold out	0	—
Range Financial Group LLC	−93K Sold out	0	—
Millennium Management LLC Hedge fund	−93K −69.4%	41K	$455,788
M Holdings Securities, Inc.	−83K Sold out	0	—
Jacobs Levy Equity Management, Inc Active manager	−74K −48.6%	78K	$861,626
Jane Street Group, LLC	−66K −52.3%	61K	$672,749
UBS Group AG	−57K −60.6%	37K	$407,658
Susquehanna International Group, LLP	−48K Sold out	0	—
Morgan Stanley	−47K −40.6%	69K	$767,931
Antipodes Partners Ltd Hedge fund	−43K −27.7%	113K	$1.3M
Schonfeld Strategic Advisors LLC Hedge fund	−40K Sold out	0	—
Empowered Funds, LLC	−39K −12.7%	270K	$3M
Martingale Asset Management L P Active manager	−37K −57.8%	27K	$297,836
Susquehanna Fundamental Investments, LLC	−36K Sold out	0	—
Farther Finance Advisors, LLC	−34K −81.1%	7,903	$87,721

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Empyrean Capital Partners, LP Hedge fund	−896K −79.5%	231K	$2.6M
Marshall Wace, LLP Hedge fund	−179K Sold out	0	—
Qube Research & Technologies Ltd Hedge fund	−148K Sold out	0	—
Millennium Management LLC Hedge fund	−93K −69.4%	41K	$455,788
Jacobs Levy Equity Management, Inc Active manager	−74K −48.6%	78K	$861,626
Antipodes Partners Ltd Hedge fund	−43K −27.7%	113K	$1.3M
Schonfeld Strategic Advisors LLC Hedge fund	−40K Sold out	0	—
Martingale Asset Management L P Active manager	−37K −57.8%	27K	$297,836
Tudor Investment Corp Et Al Hedge fund	−30K −13.8%	186K	$2.1M
Engineers Gate Manager LP Hedge fund	−23K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
O'Shaughnessy Asset Management, LLCActive manager	133K	$1.5M
Mackenzie Financial Corp	83K	$919,513
Iht Wealth Management, LLC	54K	$602,819
Great Lakes Advisors, LLC	36K	$397,790
Entrypoint Capital, LLC	28K	$315,728
Jump Financial, LLC	22K	$245,221
Squarepoint Ops LLCHedge fund	16K	$173,005
Atom Investors LP	13K	$144,422
D. E. Shaw & Co., Inc.Hedge fund	11K	$126,784
Quadrature Capital LtdHedge fund	11K	$122,944

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Dg Capital Management, LLC	465K	$5.2M
Marshall Wace, LLPHedge fund	179K	$2M
Qube Research & Technologies LtdHedge fund	148K	$1.7M
Range Financial Group LLC	93K	$1.1M
M Holdings Securities, Inc.	83K	$846,000
Susquehanna International Group, LLP	48K	$544,714
Schonfeld Strategic Advisors LLCHedge fund	40K	$451,518
Susquehanna Fundamental Investments, LLC	36K	$402,649
CIBC World Market Inc.	32K	$359,168
Arcus Capital Partners, LLC	32K	$355,894

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 134
Ten largest holders: 59.6%
Index fund managers: 32.8%
Active managers and hedge funds: 27.5%

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	15	14	4	5	−1.0M	−19.0%
Index fund managers	7	2	0	0	+496K	+10.6%
Other institutions	43	53	12	26	−1.3M	−17.2%

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 American Coastal Insurance.

Only managers that filed a holdings report for both quarters are compared (164 here). 2 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.

← Back to American Coastal Insurance Corp · Insiders · Politicians