Mattel Inc: which funds bought and sold

Institutions that bought and sold Mattel 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, 140 institutions that filed 13F reports for both quarters added to or opened positions in Mattel, and 235 cut or closed them. Together they added a net 2.1M shares, +0.7% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 2.3M shares (+1.4%); index fund managers were net sellers of 3.0M shares (−3.8%). 39 opened a new position and 67 sold out entirely.

Bought, Q2 2026 140 institutions, 39 of them new holders Sold, Q2 2026 235 institutions, 67 of them sold out

Net change, all compared +2.1M shares (+0.7%)

Net change, active managers +2.3M shares (+1.4%), 31 bought, 32 sold

Buyers versus sellers

institutions compared, 458

140 bought 83 235 sold

Active managers and hedge funds 31 bought · 32 sold · +2.3M

Index fund managers 0 bought · 11 sold · −3.0M

Other institutions 109 bought · 192 sold · +2.8M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Fuller & Thaler Asset Management, Inc.	+3.6M +220.2%	5.3M	$73.2M
Arrowstreet Capital, Limited Partnership Hedge fund	+2.3M +352.6%	2.9M	$40.5M
Edgepoint Investment Group Inc. Active manager	+1.9M +3.9%	51.0M	$709M
Ariel Investments, LLC Active manager	+1.8M +13.6%	15.4M	$214M
Citadel Advisors LLC Hedge fund	+1.7M +373.3%	2.2M	$30.8M
Gotham Asset Management, LLC Hedge fund	+1.6M +199.3%	2.4M	$33.3M
Dimensional Fund Advisors LP	+1.5M +13.9%	12.6M	$175M
Alyeska Investment Group, L.P. Hedge fund	+1.4M +30.4%	6.0M	$83.4M
Goldman Sachs Group Inc	+1.2M +34.9%	4.8M	$66.3M
Freestone Grove Partners LP Hedge fund	+1.1M New position	1.1M	$15.6M
Squarepoint Ops LLC Hedge fund	+1.1M +47.0%	3.5M	$48.3M
Prudential Financial Inc	+1.0M +886.3%	1.2M	$16.1M
LSV Asset Management Active manager	+941K +15.1%	7.2M	$99.7M
Man Group PLC Hedge fund	+890K +200.0%	1.3M	$18.5M
Pine Valley Investments Ltd Liability Co	+725K New position	725K	$10.1M
Capital Fund Management S.A. Hedge fund	+629K +124.5%	1.1M	$15.8M
Long Focus Capital Management, LLC Hedge fund	+621K +32.3%	2.5M	$35.3M
Bank Of America Corp	+499K +26.0%	2.4M	$33.5M
Susquehanna International Group, LLP	+488K +179.8%	759K	$10.5M
Exoduspoint Capital Management, LP Hedge fund	+442K New position	442K	$6.1M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Arrowstreet Capital, Limited Partnership Hedge fund	+2.3M +352.6%	2.9M	$40.5M
Edgepoint Investment Group Inc. Active manager	+1.9M +3.9%	51.0M	$709M
Ariel Investments, LLC Active manager	+1.8M +13.6%	15.4M	$214M
Citadel Advisors LLC Hedge fund	+1.7M +373.3%	2.2M	$30.8M
Gotham Asset Management, LLC Hedge fund	+1.6M +199.3%	2.4M	$33.3M
Alyeska Investment Group, L.P. Hedge fund	+1.4M +30.4%	6.0M	$83.4M
Freestone Grove Partners LP Hedge fund	+1.1M New position	1.1M	$15.6M
Squarepoint Ops LLC Hedge fund	+1.1M +47.0%	3.5M	$48.3M
LSV Asset Management Active manager	+941K +15.1%	7.2M	$99.7M
Man Group PLC Hedge fund	+890K +200.0%	1.3M	$18.5M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Price T Rowe Associates Inc Active manager	−3.6M −58.5%	2.5M	$35.1M
Point72 Asset Management, L.P. Hedge fund	−1.9M −84.9%	335K	$4.6M
D. E. Shaw & Co., Inc. Hedge fund	−1.7M −43.8%	2.2M	$30.3M
Marshall Wace, LLP Hedge fund	−1.3M −36.0%	2.4M	$33.1M
Millennium Management LLC Hedge fund	−1.3M −47.2%	1.5M	$20.5M
Interval Partners, LP Hedge fund	−1.2M Sold out	0	—
Blackrock, Inc. Index funds	−1.1M −4.2%	26.2M	$363M
AQR Capital Management LLC Hedge fund	−1.1M −23.2%	3.5M	$48.5M
Quantinno Capital Management LP	−1.0M −85.7%	175K	$2.4M
Sei Investments Co	−1.0M −48.2%	1.1M	$15.5M
Serenity Capital Management Pte. Ltd.	−1.0M −50.1%	1.0M	$13.9M
Galvin, Gaustad & Stein, LLC	−558K Sold out	0	—
Jpmorgan Chase & Co	−512K −36.5%	890K	$12.4M
Corient Private Wealth LP	−512K −95.2%	26K	$361,977
Winton Group Ltd Hedge fund	−510K Sold out	0	—
Vanguard Portfolio Management LLC Index funds	−497K −3.7%	13.1M	$182M
Southeastern Asset Management Inc Active manager	−490K −3.8%	12.3M	$171M
Vanguard Capital Management LLC Index funds	−489K −3.6%	13.2M	$183M
Hancock Whitney Corp	−434K −83.2%	88K	$1.2M
Morgan Stanley	−399K −11.2%	3.1M	$43.7M

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Price T Rowe Associates Inc Active manager	−3.6M −58.5%	2.5M	$35.1M
Point72 Asset Management, L.P. Hedge fund	−1.9M −84.9%	335K	$4.6M
D. E. Shaw & Co., Inc. Hedge fund	−1.7M −43.8%	2.2M	$30.3M
Marshall Wace, LLP Hedge fund	−1.3M −36.0%	2.4M	$33.1M
Millennium Management LLC Hedge fund	−1.3M −47.2%	1.5M	$20.5M
Interval Partners, LP Hedge fund	−1.2M Sold out	0	—
AQR Capital Management LLC Hedge fund	−1.1M −23.2%	3.5M	$48.5M
Winton Group Ltd Hedge fund	−510K Sold out	0	—
Southeastern Asset Management Inc Active manager	−490K −3.8%	12.3M	$171M
Frontier Capital Management Co LLC Active manager	−369K −21.8%	1.3M	$18.4M

New positions

largest by value

Institution	Shares	Value June 30, 2026
Freestone Grove Partners LPHedge fund	1.1M	$15.6M
Pine Valley Investments Ltd Liability Co	725K	$10.1M
Exoduspoint Capital Management, LPHedge fund	442K	$6.1M
Fieldview Capital Management, LLC	339K	$4.7M
Dana Investment Advisors, Inc.	288K	$4M
Caxton Associates LLPHedge fund	201K	$2.8M
Barington Companies Management, LLC	200K	$2.8M
Brandes Investment Partners, LPActive manager	192K	$2.7M
Lighthouse Investment Partners, LLCHedge fund	101K	$1.4M
Hussman Strategic Advisors, Inc.	84K	$1.2M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Interval Partners, LPHedge fund	1.2M	$17.3M
Galvin, Gaustad & Stein, LLC	558K	$8.1M
Winton Group LtdHedge fund	510K	$7.4M
Havemeyer Place LP	238K	$3.5M
Van Eck Associates Corp	232K	$3.4M
Allspring Global Investments Holdings, LLC	213K	$3.1M
Xtx Topco Ltd	193K	$2.8M
Y-Intercept (Hong Kong) Ltd	187K	$2.7M
Quantbot Technologies LPHedge fund	116K	$1.7M
Fox Run Management, L.L.C.	112K	$1.6M

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 399
Ten largest holders: 62.3%
Index fund managers: 25.1%
Active managers and hedge funds: 54.2%

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	31	32	10	6	+2.3M	+1.4%
Index fund managers	0	11	0	1	−3.0M	−3.8%
Other institutions	109	192	29	60	+2.8M	+5.0%

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 Mattel.

Only managers that filed a holdings report for both quarters are compared (458 here). 14 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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